[ 0.000000] Linux version 4.5.0-rc1+ (root@insomnia) (gcc version 5.3.0 (GCC) ) #14 SMP PREEMPT Wed Mar 30 20:01:04 CST 2016 [ 0.000000] Command line: noapic selinux=0 console=ttyS0 rcutorture.onoff_interval=1 rcutorture.onff_holdoff=30 [ 0.000000] x86/fpu: Legacy x87 FPU detected. [ 0.000000] x86/fpu: Using 'lazy' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000007ffdefff] usable [ 0.000000] BIOS-e820: [mem 0x000000007ffdf000-0x000000007fffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.8 present. [ 0.000000] e820: last_pfn = 0x7ffdf max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] found SMP MP-table at [mem 0x000f6a50-0x000f6a5f] mapped at [ffff8800000f6a50] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] RAMDISK: [mem 0x7fcd4000-0x7ffcffff] [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F6A00 000014 (v00 BOCHS ) [ 0.000000] ACPI: RSDT 0x000000007FFE1580 000034 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.000000] ACPI: FACP 0x000000007FFE061A 000074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.000000] ACPI: DSDT 0x000000007FFDFA80 000B9A (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.000000] ACPI: FACS 0x000000007FFDFA40 000040 [ 0.000000] ACPI: SSDT 0x000000007FFE068E 000DCA (v01 BOCHS BXPCSSDT 00000001 BXPC 00000001) [ 0.000000] ACPI: APIC 0x000000007FFE1458 0000F0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.000000] ACPI: HPET 0x000000007FFE1548 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.000000] No NUMA configuration found [ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000007ffdefff] [ 0.000000] NODE_DATA(0) allocated [mem 0x7ffdb000-0x7ffdefff] [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x000000007ffdefff] [ 0.000000] Normal empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x000000007ffdefff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000007ffdefff] [ 0.000000] ACPI: PM-Timer IO Port: 0x608 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] ACPI: Skipping IOAPIC probe due to 'noapic' option. [ 0.000000] Using ACPI for processor (LAPIC) configuration information [ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 0.000000] Intel MultiProcessor Specification v1.4 [ 0.000000] MPTABLE: OEM ID: BOCHSCPU [ 0.000000] MPTABLE: Product ID: 0.1 [ 0.000000] MPTABLE: APIC at: 0xFEE00000 [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] Processors: 16 [ 0.000000] smpboot: Allowing 16 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] e820: [mem 0x80000000-0xfeffbfff] available for PCI devices [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1910969940391419 ns [ 0.000000] setup_percpu: NR_CPUS:16 nr_cpumask_bits:16 nr_cpu_ids:16 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 32 pages/cpu @ffff88007fa00000 s92008 r8192 d30872 u131072 [ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 515944 [ 0.000000] Policy zone: DMA32 [ 0.000000] Kernel command line: noapic selinux=0 console=ttyS0 rcutorture.onoff_interval=1 rcutorture.onff_holdoff=30 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Memory: 2040780K/2096628K available (8931K kernel code, 1258K rwdata, 3700K rodata, 1092K init, 984K bss, 55848K reserved, 0K cma-reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=16, Nodes=1 [ 0.000000] Preemptible hierarchical RCU implementation. [ 0.000000] RCU debugfs-based tracing is enabled. [ 0.000000] CONFIG_RCU_FANOUT set to non-default value of 2 [ 0.000000] RCU torture testing starts during boot. [ 0.000000] Four(or more)-level hierarchy is enabled. [ 0.000000] Build-time adjustment of leaf fanout to 2. [ 0.000000] RCU kthread priority: 2. [ 0.000000] NR_IRQS:4352 nr_irqs:552 16 [ 0.000000] Console: colour *CGA 80x25 [ 0.000000] console [ttyS0] enabled [ 0.000000] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 0.000000] tsc: Fast TSC calibration using PIT [ 0.000000] tsc: Detected 3466.555 MHz processor [ 0.002013] Calibrating delay loop (skipped), value calculated using timer frequency.. 6933.11 BogoMIPS (lpj=3466555) [ 0.003221] pid_max: default: 32768 minimum: 301 [ 0.004006] ACPI: Core revision 20160108 [ 0.005400] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 0.005895] [ 0.006006] ACPI: setting ELCR to 0200 (from 0c00) [ 0.006390] Security Framework initialized [ 0.006710] SELinux: Disabled at boot. [ 0.007098] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes) [ 0.008111] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes) [ 0.008795] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes) [ 0.009005] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes) [ 0.010313] mce: CPU supports 10 MCE banks [ 0.010663] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 0.011003] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 0.012726] Freeing SMP alternatives memory: 32K (ffffffff8204d000 - ffffffff82055000) [ 0.013357] Switched APIC routing to physical flat. [ 0.014080] smpboot: CPU0: Intel(R) Xeon(R) CPU X5690 @ 3.47GHz (family: 0x6, model: 0x2c, stepping: 0x2) [ 0.014920] Performance Events: 16-deep LBR, Westmere events, Intel PMU driver. [ 0.015429] perf_event_intel: CPUID marked event: 'bus cycles' unavailable [ 0.015949] ... version: 2 [ 0.016003] ... bit width: 48 [ 0.016329] ... generic registers: 4 [ 0.016636] ... value mask: 0000ffffffffffff [ 0.017003] ... max period: 000000007fffffff [ 0.017404] ... fixed-purpose events: 3 [ 0.017710] ... event mask: 000000070000000f [ 0.027039] x86: Booting SMP configuration: [ 0.027433] .... node #0, CPUs: #1 #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 #12 #13 #14 #15 [ 0.985023] x86: Booted up 1 node, 16 CPUs [ 0.985362] smpboot: Total of 16 processors activated (111447.03 BogoMIPS) [ 0.987547] devtmpfs: initialized [ 0.988368] kworker/u32:0 (98) used greatest stack depth: 13928 bytes left [ 0.988536] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns [ 0.988993] RTC time: 12:03:37, date: 03/30/16 [ 0.989101] NET: Registered protocol family 16 [ 0.989570] kworker/u32:1 (100) used greatest stack depth: 13736 bytes left [ 0.996022] cpuidle: using governor menu [ 0.996672] ACPI: bus type PCI registered [ 0.997125] PCI: Using configuration type 1 for base access [ 1.010381] HugeTLB registered 2 MB page size, pre-allocated 0 pages [ 1.011926] ACPI: Added _OSI(Module Device) [ 1.012004] ACPI: Added _OSI(Processor Device) [ 1.012349] ACPI: Added _OSI(3.0 _SCP Extensions) [ 1.012717] ACPI: Added _OSI(Processor Aggregator Device) [ 1.014251] ACPI: Interpreter enabled [ 1.014628] ACPI: (supports S0 S3 S4 S5) [ 1.014997] ACPI: Using PIC for interrupt routing [ 1.015037] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 1.019866] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 1.020013] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI] [ 1.020677] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM [ 1.021011] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 1.022058] PCI host bridge to bus 0000:00 [ 1.022466] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 1.023011] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 1.023551] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 1.024004] pci_bus 0000:00: root bus resource [mem 0x80000000-0xfebfffff window] [ 1.024578] pci_bus 0000:00: root bus resource [bus 00-ff] [ 1.028247] pci 0000:00:01.1: legacy IDE quirk: reg 0x10: [io 0x01f0-0x01f7] [ 1.028778] pci 0000:00:01.1: legacy IDE quirk: reg 0x14: [io 0x03f6] [ 1.029004] pci 0000:00:01.1: legacy IDE quirk: reg 0x18: [io 0x0170-0x0177] [ 1.029537] pci 0000:00:01.1: legacy IDE quirk: reg 0x1c: [io 0x0376] [ 1.030369] pci 0000:00:01.3: quirk: [io 0x0600-0x063f] claimed by PIIX4 ACPI [ 1.030936] pci 0000:00:01.3: quirk: [io 0x0700-0x070f] claimed by PIIX4 SMB [ 1.037175] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 1.037744] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 1.038196] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 1.038745] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 1.039172] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 1.040561] ACPI: Enabled 16 GPEs in block 00 to 0F [ 1.041109] vgaarb: loaded [ 1.041419] SCSI subsystem initialized [ 1.041953] ACPI: bus type USB registered [ 1.042040] usbcore: registered new interface driver usbfs [ 1.042487] usbcore: registered new interface driver hub [ 1.043100] usbcore: registered new device driver usb [ 1.043539] pps_core: LinuxPPS API ver. 1 registered [ 1.043979] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 1.044019] PTP clock support registered [ 1.044684] Advanced Linux Sound Architecture Driver Initialized. [ 1.045053] PCI: Using ACPI for IRQ routing [ 1.045729] NetLabel: Initializing [ 1.046004] NetLabel: domain hash size = 128 [ 1.046365] NetLabel: protocols = UNLABELED CIPSOv4 [ 1.046767] NetLabel: unlabeled traffic allowed by default [ 1.047180] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 [ 1.047609] hpet0: 3 comparators, 64-bit 100.000000 MHz counter [ 1.052714] clocksource: Switched to clocksource hpet [ 1.059250] VFS: Disk quotas dquot_6.6.0 [ 1.059578] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 1.060306] pnp: PnP ACPI init [ 1.060970] pnp: PnP ACPI: found 5 devices [ 1.069312] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 1.070069] NET: Registered protocol family 2 [ 1.070632] TCP established hash table entries: 16384 (order: 5, 131072 bytes) [ 1.071401] TCP bind hash table entries: 16384 (order: 7, 524288 bytes) [ 1.072064] TCP: Hash tables configured (established 16384 bind 16384) [ 1.072688] UDP hash table entries: 1024 (order: 4, 98304 bytes) [ 1.073276] UDP-Lite hash table entries: 1024 (order: 4, 98304 bytes) [ 1.073827] NET: Registered protocol family 1 [ 1.074495] RPC: Registered named UNIX socket transport module. [ 1.074955] RPC: Registered udp transport module. [ 1.075464] RPC: Registered tcp transport module. [ 1.075826] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 1.076439] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 1.076891] pci 0000:00:01.0: PIIX3: Enabling Passive Release [ 1.077443] pci 0000:00:01.0: Activating ISA DMA hang workarounds [ 1.077963] Unpacking initramfs... [ 1.120173] Freeing initrd memory: 3056K (ffff88007fcd4000 - ffff88007ffd0000) [ 1.122503] Scanning for low memory corruption every 60 seconds [ 1.123167] rcu-torture:--- Start of test: nreaders=15 nfakewriters=4 stat_interval=60 verbose=1 test_no_idle_hz=1 shuffle_interval=3 stutter=5 irqreader=1 fqs_duration=0 fqs_holdoff=0 fqs_stutter=3 test_boost=1/0 test_boost_interval=7 test_boost_duration=4 shutdown_secs=0 stall_cpu=0 stall_cpu_holdoff=10 n_barrier_cbs=0 onoff_interval=1 onoff_holdoff=0 [ 1.125747] rcu-torture: Creating rcu_torture_writer task [ 1.126429] rcu-torture: Creating rcu_torture_fakewriter task [ 1.126429] rcu-torture: rcu_torture_writer task started [ 1.126430] rcu-torture: Grace periods expedited from boot/sysfs for rcu, [ 1.126430] rcu-torture: Testing of dynamic grace-period expediting diabled. [ 1.128644] rcu-torture: Creating rcu_torture_fakewriter task [ 1.128642] rcu-torture: rcu_torture_fakewriter task started [ 1.129727] rcu-torture: Creating rcu_torture_fakewriter task [ 1.129733] rcu-torture: rcu_torture_fakewriter task started [ 1.130898] rcu-torture: Creating rcu_torture_fakewriter task [ 1.130906] rcu-torture: rcu_torture_fakewriter task started [ 1.132691] rcu-torture: Creating rcu_torture_reader task [ 1.132694] rcu-torture: rcu_torture_fakewriter task started [ 1.133744] rcu-torture: Creating rcu_torture_reader task [ 1.133750] rcu-torture: rcu_torture_reader task started [ 1.135313] rcu-torture: Creating rcu_torture_reader task [ 1.135317] rcu-torture: rcu_torture_reader task started [ 1.136682] rcu-torture: Creating rcu_torture_reader task [ 1.136686] rcu-torture: rcu_torture_reader task started [ 1.138108] rcu-torture: Creating rcu_torture_reader task [ 1.138809] rcu-torture: Creating rcu_torture_reader task [ 1.138818] rcu-torture: rcu_torture_reader task started [ 1.140081] rcu-torture: rcu_torture_reader task started [ 1.140856] rcu-torture: Creating rcu_torture_reader task [ 1.140866] rcu-torture: rcu_torture_reader task started [ 1.142268] rcu-torture: Creating rcu_torture_reader task [ 1.142271] rcu-torture: rcu_torture_reader task started [ 1.143582] rcu-torture: Creating rcu_torture_reader task [ 1.143575] rcu-torture: rcu_torture_reader task started [ 1.144936] rcu-torture: Creating rcu_torture_reader task [ 1.144938] rcu-torture: rcu_torture_reader task started [ 1.147747] rcu-torture: Creating rcu_torture_reader task [ 1.148083] rcu-torture: rcu_torture_reader task started [ 1.150115] rcu-torture: Creating rcu_torture_reader task [ 1.150770] rcu-torture: Creating rcu_torture_reader task [ 1.150778] rcu-torture: rcu_torture_reader task started [ 1.151081] rcu-torture: rcu_torture_reader task started [ 1.152751] rcu-torture: Creating rcu_torture_reader task [ 1.152757] rcu-torture: rcu_torture_reader task started [ 1.154181] rcu-torture: Creating rcu_torture_reader task [ 1.154185] rcu-torture: rcu_torture_reader task started [ 1.155491] rcu-torture: Creating rcu_torture_stats task [ 1.156175] rcu-torture: rcu_torture_reader task started [ 1.158111] rcu-torture: Creating torture_shuffle task [ 1.158225] rcu-torture: rcu_torture_stats task started [ 1.160088] rcu-torture: Creating torture_stutter task [ 1.162072] rcu-torture: torture_shuffle task started [ 1.162089] rcu-torture: Creating torture_onoff task [ 1.162096] rcu-torture: torture_stutter task started [ 1.163132] rcu-torture: Creating rcu_torture_cbflood task [ 1.163136] rcu-torture: torture_onoff task started [ 1.163137] rcu-torture:torture_onoff task: offlining 1 [ 1.165109] rcu-torture: Creating rcu_torture_cbflood task [ 1.165188] rcu-torture: rcu_torture_cbflood task started [ 1.166119] rcu-torture: Creating rcu_torture_cbflood task [ 1.166175] rcu-torture: rcu_torture_cbflood task started [ 1.167091] rcu-torture: Creating rcu_torture_cbflood task [ 1.167186] rcu-torture: rcu_torture_cbflood task started [ 1.168161] rcu-torture: rcu_torture_cbflood task started [ 1.198566] Cannot set affinity for irq 0 [ 1.201317] rcu-torture:torture_onoff task: offlined 1 [ 1.202330] futex hash table entries: 4096 (order: 6, 262144 bytes) [ 1.203196] audit: initializing netlink subsys (disabled) [ 1.203818] audit: type=2000 audit(1459339417.203:1): initialized [ 1.214213] NFS: Registering the id_resolver key type [ 1.214798] Key type id_resolver registered [ 1.216354] Key type id_legacy registered [ 1.244465] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251) [ 1.245389] io scheduler noop registered [ 1.245828] io scheduler deadline registered [ 1.246386] io scheduler cfq registered (default) [ 1.246974] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 1.247793] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 1.248696] ACPI: Power Button [PWRF] [ 1.250818] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 1.298067] 00:04: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 1.301459] Non-volatile memory driver v1.3 [ 1.301993] Linux agpgart interface v0.103 [ 1.302664] [drm] Initialized drm 1.1.0 20060810 [ 1.333318] loop: module loaded [ 1.338108] scsi host0: ata_piix [ 1.344082] scsi host1: ata_piix [ 1.344504] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc040 irq 14 [ 1.345328] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc048 irq 15 [ 1.346267] e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI [ 1.346946] e100: Copyright(c) 1999-2006 Intel Corporation [ 1.347667] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI [ 1.348576] e1000: Copyright (c) 1999-2006 Intel Corporation. [ 1.401454] ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 10 [ 1.837131] e1000 0000:00:02.0 eth0: (PCI:33MHz:32-bit) 52:54:00:12:34:56 [ 1.837856] e1000 0000:00:02.0 eth0: Intel(R) PRO/1000 Network Connection [ 1.839514] sky2: driver version 1.30 [ 1.842083] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 1.842792] ehci-pci: EHCI PCI platform driver [ 1.843372] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 1.844095] ohci-pci: OHCI PCI platform driver [ 1.844586] uhci_hcd: USB Universal Host Controller Interface driver [ 1.848330] usbcore: registered new interface driver usblp [ 1.848944] usbcore: registered new interface driver usb-storage [ 1.850748] i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12 [ 1.853219] serio: i8042 KBD port at 0x60,0x64 irq 1 [ 1.853811] serio: i8042 AUX port at 0x60,0x64 irq 12 [ 1.854564] mousedev: PS/2 mouse device common for all mice [ 1.855778] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input1 [ 1.856946] rtc_cmos 00:00: RTC can wake from S4 [ 1.857843] rtc_cmos 00:00: rtc core: registered rtc_cmos as rtc0 [ 1.860852] rtc_cmos 00:00: alarms up to one day, 114 bytes nvram, hpet irqs [ 1.861917] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com [ 1.863983] hidraw: raw HID events driver (C) Jiri Kosina [ 1.864831] usbcore: registered new interface driver usbhid [ 1.866528] usbhid: USB HID core driver [ 1.868362] Netfilter messages via NETLINK v0.30. [ 1.868937] nf_conntrack version 0.5.0 (16384 buckets, 65536 max) [ 1.869776] ctnetlink v0.93: registering with nfnetlink. [ 1.938103] ip_tables: (C) 2000-2006 Netfilter Core Team [ 1.954088] Initializing XFRM netlink socket [ 1.954745] NET: Registered protocol family 10 [ 1.959227] ip6_tables: (C) 2000-2006 Netfilter Core Team [ 2.045095] sit: IPv6 over IPv4 tunneling driver [ 2.045761] NET: Registered protocol family 17 [ 2.046381] Key type dns_resolver registered [ 2.048272] microcode: CPU0 sig=0x206c2, pf=0x1, revision=0x1 [ 2.054101] microcode: CPU2 sig=0x206c2, pf=0x1, revision=0x1 [ 2.054727] microcode: CPU3 sig=0x206c2, pf=0x1, revision=0x1 [ 2.055398] microcode: CPU4 sig=0x206c2, pf=0x1, revision=0x1 [ 2.057091] microcode: CPU5 sig=0x206c2, pf=0x1, revision=0x1 [ 2.058077] microcode: CPU6 sig=0x206c2, pf=0x1, revision=0x1 [ 2.059488] microcode: CPU7 sig=0x206c2, pf=0x1, revision=0x1 [ 2.060165] microcode: CPU8 sig=0x206c2, pf=0x1, revision=0x1 [ 2.060792] microcode: CPU9 sig=0x206c2, pf=0x1, revision=0x1 [ 2.062457] microcode: CPU10 sig=0x206c2, pf=0x1, revision=0x1 [ 2.063193] microcode: CPU11 sig=0x206c2, pf=0x1, revision=0x1 [ 2.063807] microcode: CPU12 sig=0x206c2, pf=0x1, revision=0x1 [ 2.065476] microcode: CPU13 sig=0x206c2, pf=0x1, revision=0x1 [ 2.066140] microcode: CPU14 sig=0x206c2, pf=0x1, revision=0x1 [ 2.066776] microcode: CPU15 sig=0x206c2, pf=0x1, revision=0x1 [ 2.069136] microcode: Microcode Update Driver: v2.01 , Peter Oruba [ 2.073334] registered taskstats version 1 [ 2.120085] tsc: Refined TSC clocksource calibration: 3466.787 MHz [ 2.120116] Magic number: 8:22:78 [ 2.121287] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x31f8c1a78ae, max_idle_ns: 440795301702 ns [ 2.122453] console [netcon0] enabled [ 2.122838] netconsole: network logging started [ 2.123496] ALSA device list: [ 2.123826] No soundcards found. [ 2.132882] Freeing unused kernel memory: 1092K (ffffffff81f3c000 - ffffffff8204d000) [ 2.133781] Write protecting the kernel read-only data: 14336k [ 2.142268] Freeing unused kernel memory: 1296K (ffff8800018bc000 - ffff880001a00000) [ 2.147172] Freeing unused kernel memory: 396K (ffff880001d9d000 - ffff880001e00000) :: running early hook [udev] Warning: /lib/modules/4.5.0-rc1+/modules.devname not found - ignoring [ 2.156227] random: systemd-tmpfile urandom read with 3 bits of entropy available starting version 228 :: running hook [udev] :: Triggering uevents... [ 2.203265] rcu-torture:torture_onoff task: offlining 13 [ 2.311090] smpboot: CPU 13 is now offline [ 2.335175] rcu-torture:torture_onoff task: offlined 13 [ 2.374076] hrtimer: interrupt took 3052040 ns ERROR: device '' not found. Skipping fsck. ERROR: Unable to find root device ''. You are being dropped to a recovery shell Type 'exit' to try and continue booting sh: can't access tty; job control turned off [rootfs /]# [ 2.532402] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input3 [ 3.175686] clocksource: Switched to clocksource tsc [ 3.335015] rcu-torture:torture_onoff task: offlining 9 [ 3.458326] smpboot: CPU 9 is now offline [ 3.473041] rcu-torture:torture_onoff task: offlined 9 [ 4.474012] rcu-torture:torture_onoff task: offlining 3 [ 4.658671] smpboot: CPU 3 is now offline [ 4.707907] rcu-torture:torture_onoff task: offlined 3 [ 5.708012] rcu-torture:torture_onoff task: onlining 13 [ 5.718635] smpboot: Booting Node 0 Processor 13 APIC 0xd [ 5.849194] rcu-torture:torture_onoff task: onlined 13 [ 6.849043] rcu-torture:torture_onoff task: offlining 6 [ 6.918255] smpboot: CPU 6 is now offline [ 6.973968] rcu-torture:torture_onoff task: offlined 6 [ 7.975013] rcu-torture:torture_onoff task: offlining 13 [ 8.030256] smpboot: CPU 13 is now offline [ 8.084823] rcu-torture:torture_onoff task: offlined 13 [ 9.085014] rcu-torture:torture_onoff task: offlining 2 [ 9.141234] smpboot: CPU 2 is now offline [ 9.195554] rcu-torture:torture_onoff task: offlined 2 [ 10.195008] rcu-torture:torture_onoff task: onlining 6 [ 10.249497] smpboot: Booting Node 0 Processor 6 APIC 0x6 [ 10.275147] rcu-torture:torture_onoff task: onlined 6 [ 11.275012] rcu-torture:torture_onoff task: offlining 8 [ 11.348220] smpboot: CPU 8 is now offline [ 11.352839] rcu-torture:torture_onoff task: offlined 8 [ 12.353015] rcu-torture:torture_onoff task: onlining 8 [ 12.376796] smpboot: Booting Node 0 Processor 8 APIC 0x8 [ 12.523163] rcu-torture:torture_onoff task: onlined 8 [ 13.523013] rcu-torture:torture_onoff task: offlining 6 [ 13.571220] smpboot: CPU 6 is now offline [ 13.577564] rcu-torture:torture_onoff task: offlined 6 [ 14.578012] rcu-torture:torture_onoff task: onlining 1 [ 14.602743] x86: Booting SMP configuration: [ 14.603246] smpboot: Booting Node 0 Processor 1 APIC 0x1 [ 14.729178] microcode: CPU1 sig=0x206c2, pf=0x1, revision=0x1 [ 14.729828] rcu-torture:torture_onoff task: onlined 1 [ 15.730012] rcu-torture:torture_onoff task: onlining 9 [ 15.764765] smpboot: Booting Node 0 Processor 9 APIC 0x9 [ 15.918505] rcu-torture:torture_onoff task: onlined 9 [ 16.919012] rcu-torture:torture_onoff task: offlining 15 [ 17.032826] smpboot: CPU 15 is now offline [ 17.088898] rcu-torture:torture_onoff task: offlined 15 [ 18.089019] rcu-torture:torture_onoff task: offlining 1 [ 18.144244] smpboot: CPU 1 is now offline [ 18.198796] rcu-torture:torture_onoff task: offlined 1 [ 19.199020] rcu-torture:torture_onoff task: onlining 1 [ 19.253718] x86: Booting SMP configuration: [ 19.254220] smpboot: Booting Node 0 Processor 1 APIC 0x1 [ 19.280164] rcu-torture:torture_onoff task: onlined 1 [ 20.280009] rcu-torture:torture_onoff task: onlining 13 [ 20.334516] smpboot: Booting Node 0 Processor 13 APIC 0xd [ 20.360165] rcu-torture:torture_onoff task: onlined 13 [ 21.360012] rcu-torture:torture_onoff task: offlining 5 [ 21.398318] smpboot: CPU 5 is now offline [ 21.402867] rcu-torture:torture_onoff task: offlined 5 [ 22.403014] rcu-torture:torture_onoff task: offlining 9 [ 22.414258] smpboot: CPU 9 is now offline [ 22.460826] rcu-torture:torture_onoff task: offlined 9 [ 23.461009] rcu-torture:torture_onoff task: offlining 10 [ 23.603210] smpboot: CPU 10 is now offline [ 23.627577] rcu-torture:torture_onoff task: offlined 10 [ 24.627009] rcu-torture:torture_onoff task: onlining 6 [ 24.675485] smpboot: Booting Node 0 Processor 6 APIC 0x6 [ 24.789151] rcu-torture:torture_onoff task: onlined 6 [ 25.789025] rcu-torture:torture_onoff task: offlining 14 [ 25.858243] smpboot: CPU 14 is now offline [ 25.867988] rcu-torture:torture_onoff task: offlined 14 [ 26.870062] rcu-torture:torture_onoff task: offlining 1 [ 26.925293] smpboot: CPU 1 is now offline [ 26.978849] rcu-torture:torture_onoff task: offlined 1 [ 28.979064] rcu-torture:torture_onoff task: onlining 10 [ 29.032704] smpboot: Booting Node 0 Processor 10 APIC 0xa [ 29.059317] rcu-torture:torture_onoff task: onlined 10 [ 30.059084] rcu-torture:torture_onoff task: onlining 14 [ 30.112682] smpboot: Booting Node 0 Processor 14 APIC 0xe [ 30.137343] rcu-torture:torture_onoff task: onlined 14 [ 31.137078] rcu-torture:torture_onoff task: offlining 14 [ 31.166070] smpboot: CPU 14 is now offline [ 31.219937] rcu-torture:torture_onoff task: offlined 14 [ 32.220012] rcu-torture:torture_onoff task: offlining 8 [ 32.256561] smpboot: CPU 8 is now offline [ 32.261886] rcu-torture:torture_onoff task: offlined 8 [ 33.262016] rcu-torture:torture_onoff task: offlining 12 [ 33.380237] smpboot: CPU 12 is now offline [ 33.423113] rcu-torture:torture_onoff task: offlined 12 [ 34.423009] rcu-torture:torture_onoff task: offlining 10 [ 34.466212] smpboot: CPU 10 is now offline [ 34.471595] rcu-torture:torture_onoff task: offlined 10 [ 35.471008] rcu-torture:torture_onoff task: onlining 3 [ 35.479539] smpboot: Booting Node 0 Processor 3 APIC 0x3 [ 35.508119] rcu-torture:torture_onoff task: onlined 3 [ 36.509009] rcu-torture:torture_onoff task: onlining 5 [ 36.563589] smpboot: Booting Node 0 Processor 5 APIC 0x5 [ 36.588315] rcu-torture:torture_onoff task: onlined 5 [ 38.589069] rcu-torture:torture_onoff task: offlining 5 [ 38.644261] smpboot: CPU 5 is now offline [ 38.698930] rcu-torture:torture_onoff task: offlined 5 [ 39.699060] rcu-torture:torture_onoff task: offlining 4 [ 39.754291] smpboot: CPU 4 is now offline [ 39.808637] rcu-torture:torture_onoff task: offlined 4 [ 40.809021] rcu-torture:torture_onoff task: offlining 11 [ 40.865225] smpboot: CPU 11 is now offline [ 40.919552] rcu-torture:torture_onoff task: offlined 11 [ 41.939673] rcu-torture:torture_onoff task: onlining 11 [ 41.948489] smpboot: Booting Node 0 Processor 11 APIC 0xb [ 42.031085] rcu-torture:torture_onoff task: onlined 11 [ 43.031008] rcu-torture:torture_onoff task: onlining 4 [ 43.039562] smpboot: Booting Node 0 Processor 4 APIC 0x4 [ 43.129117] rcu-torture:torture_onoff task: onlined 4 [ 44.142784] rcu-torture:torture_onoff task: onlining 5 [ 44.188584] smpboot: Booting Node 0 Processor 5 APIC 0x5 [ 44.257115] rcu-torture:torture_onoff task: onlined 5 [ 45.257008] rcu-torture:torture_onoff task: onlining 14 [ 45.278452] smpboot: Booting Node 0 Processor 14 APIC 0xe [ 45.445125] rcu-torture:torture_onoff task: onlined 14 [ 47.445009] rcu-torture:torture_onoff task: onlining 9 [ 47.499476] smpboot: Booting Node 0 Processor 9 APIC 0x9 [ 47.533228] rcu-torture:torture_onoff task: onlined 9 [ 48.533037] rcu-torture:torture_onoff task: onlining 10 [ 48.587760] smpboot: Booting Node 0 Processor 10 APIC 0xa [ 48.625191] rcu-torture:torture_onoff task: onlined 10 [ 49.625023] rcu-torture:torture_onoff task: offlining 3 [ 49.684242] smpboot: CPU 3 is now offline [ 49.739836] rcu-torture:torture_onoff task: offlined 3 [ 50.740027] rcu-torture:torture_onoff task: onlining 3 [ 50.795725] smpboot: Booting Node 0 Processor 3 APIC 0x3 [ 50.825193] rcu-torture:torture_onoff task: onlined 3 [ 51.839424] rcu-torture:torture_onoff task: offlining 10 [ 51.863245] smpboot: CPU 10 is now offline [ 51.907767] rcu-torture:torture_onoff task: offlined 10 [ 52.908012] rcu-torture:torture_onoff task: onlining 8 [ 52.954756] smpboot: Booting Node 0 Processor 8 APIC 0x8 [ 53.045171] rcu-torture:torture_onoff task: onlined 8 [ 54.045023] rcu-torture:torture_onoff task: offlining 13 [ 54.097238] smpboot: CPU 13 is now offline [ 54.131066] rcu-torture:torture_onoff task: offlined 13 [ 55.131011] rcu-torture:torture_onoff task: offlining 9 [ 55.176245] smpboot: CPU 9 is now offline [ 55.181098] rcu-torture:torture_onoff task: offlined 9 [ 56.181027] rcu-torture:torture_onoff task: onlining 10 [ 56.236916] smpboot: Booting Node 0 Processor 10 APIC 0xa [ 56.283185] rcu-torture:torture_onoff task: onlined 10 [ 57.283030] rcu-torture:torture_onoff task: onlining 2 [ 57.352121] smpboot: Booting Node 0 Processor 2 APIC 0x2 [ 57.414115] rcu-torture:torture_onoff task: onlined 2 [ 58.415028] rcu-torture:torture_onoff task: onlining 1 [ 58.472096] x86: Booting SMP configuration: [ 58.472545] smpboot: Booting Node 0 Processor 1 APIC 0x1 [ 58.508573] rcu-torture:torture_onoff task: onlined 1 [ 59.510021] rcu-torture:torture_onoff task: offlining 4 [ 59.588298] smpboot: CPU 4 is now offline [ 59.643851] rcu-torture:torture_onoff task: offlined 4 [ 60.645012] rcu-torture:torture_onoff task: offlining 14 [ 60.728261] smpboot: CPU 14 is now offline [ 60.783787] rcu-torture:torture_onoff task: offlined 14 [ 61.158025] rcu-torture: rtc: ffffffff820d7030 ver: 493 tfle: 0 rta: 493 rtaf: 0 rtf: 484 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 211179 onoff: 23/23:29/29 37,189:38,232 2550:2997 (HZ=1000) barrier: 0/0:0 cbflood: 118 [ 61.160296] rcu-torture: Reader Pipe: 1606911908 2853 0 0 0 0 0 0 0 0 0 [ 61.161231] rcu-torture: Reader Batch: 1564038099 42876662 0 0 0 0 0 0 0 0 0 [ 61.162222] rcu-torture: Free-Block Circulation: 492 492 491 490 489 488 487 486 485 484 0 [ 61.784011] rcu-torture:torture_onoff task: onlining 13 [ 61.817712] smpboot: Booting Node 0 Processor 13 APIC 0xd [ 62.001153] rcu-torture:torture_onoff task: onlined 13 [ 63.001013] rcu-torture:torture_onoff task: offlining 1 [ 63.103245] smpboot: CPU 1 is now offline [ 63.109824] rcu-torture:torture_onoff task: offlined 1 [ 64.152203] rcu-torture:torture_onoff task: offlining 10 [ 64.185213] smpboot: CPU 10 is now offline [ 64.189763] rcu-torture:torture_onoff task: offlined 10 [ 65.190026] rcu-torture:torture_onoff task: onlining 9 [ 65.216015] smpboot: Booting Node 0 Processor 9 APIC 0x9 [ 65.434160] rcu-torture:torture_onoff task: onlined 9 [ 66.434014] rcu-torture:torture_onoff task: onlining 12 [ 66.488805] smpboot: Booting Node 0 Processor 12 APIC 0xc [ 66.532942] rcu-torture:torture_onoff task: onlined 12 [ 67.533021] rcu-torture:torture_onoff task: offlining 3 [ 67.599534] smpboot: CPU 3 is now offline [ 67.655672] rcu-torture:torture_onoff task: offlined 3 [ 68.656019] rcu-torture:torture_onoff task: onlining 15 [ 68.712267] smpboot: Booting Node 0 Processor 15 APIC 0xf [ 68.763417] rcu-torture:torture_onoff task: onlined 15 [ 69.764019] rcu-torture:torture_onoff task: offlining 15 [ 69.819284] smpboot: CPU 15 is now offline [ 69.873984] rcu-torture:torture_onoff task: offlined 15 [ 70.874012] rcu-torture:torture_onoff task: onlining 3 [ 70.949074] smpboot: Booting Node 0 Processor 3 APIC 0x3 [ 70.983208] rcu-torture:torture_onoff task: onlined 3 [ 71.983022] rcu-torture:torture_onoff task: onlining 10 [ 72.009076] smpboot: Booting Node 0 Processor 10 APIC 0xa [ 72.207488] rcu-torture:torture_onoff task: onlined 10 [ 73.208011] rcu-torture:torture_onoff task: offlining 5 [ 73.239256] smpboot: CPU 5 is now offline [ 73.243935] rcu-torture:torture_onoff task: offlined 5 [ 74.244019] rcu-torture:torture_onoff task: onlining 4 [ 74.252811] smpboot: Booting Node 0 Processor 4 APIC 0x4 [ 74.563168] rcu-torture:torture_onoff task: onlined 4 [ 75.563012] rcu-torture:torture_onoff task: offlining 6 [ 75.600357] smpboot: CPU 6 is now offline [ 75.625881] rcu-torture:torture_onoff task: offlined 6 [ 76.626008] rcu-torture:torture_onoff task: offlining 11 [ 76.634187] smpboot: CPU 11 is now offline [ 76.641088] rcu-torture:torture_onoff task: offlined 11 [ 77.641015] rcu-torture:torture_onoff task: offlining 2 [ 77.649235] smpboot: CPU 2 is now offline [ 77.655925] rcu-torture:torture_onoff task: offlined 2 [ 78.656017] rcu-torture:torture_onoff task: offlining 13 [ 78.666080] smpboot: CPU 13 is now offline [ 78.672926] rcu-torture:torture_onoff task: offlined 13 [ 79.673018] rcu-torture:torture_onoff task: offlining 9 [ 79.680209] smpboot: CPU 9 is now offline [ 79.686833] rcu-torture:torture_onoff task: offlined 9 [ 80.687010] rcu-torture:torture_onoff task: onlining 9 [ 80.695536] smpboot: Booting Node 0 Processor 9 APIC 0x9 [ 80.722115] rcu-torture:torture_onoff task: onlined 9 [ 81.722009] rcu-torture:torture_onoff task: offlining 10 [ 81.804173] smpboot: CPU 10 is now offline [ 81.808697] rcu-torture:torture_onoff task: offlined 10 [ 82.809011] rcu-torture:torture_onoff task: onlining 13 [ 82.817598] smpboot: Booting Node 0 Processor 13 APIC 0xd [ 82.992126] rcu-torture:torture_onoff task: onlined 13 [ 83.992009] rcu-torture:torture_onoff task: onlining 1 [ 84.024124] x86: Booting SMP configuration: [ 84.024445] smpboot: Booting Node 0 Processor 1 APIC 0x1 [ 84.253120] rcu-torture:torture_onoff task: onlined 1 [ 85.253012] rcu-torture:torture_onoff task: offlining 8 [ 85.353204] smpboot: CPU 8 is now offline [ 85.403738] rcu-torture:torture_onoff task: offlined 8 [ 86.404008] rcu-torture:torture_onoff task: onlining 15 [ 86.458466] smpboot: Booting Node 0 Processor 15 APIC 0xf [ 86.485146] rcu-torture:torture_onoff task: onlined 15 [ 87.485026] rcu-torture:torture_onoff task: onlining 8 [ 87.539695] smpboot: Booting Node 0 Processor 8 APIC 0x8 [ 87.597212] rcu-torture:torture_onoff task: onlined 8 [ 88.597022] rcu-torture:torture_onoff task: onlining 2 [ 88.652738] smpboot: Booting Node 0 Processor 2 APIC 0x2 [ 88.693197] rcu-torture:torture_onoff task: onlined 2 [ 89.693018] rcu-torture:torture_onoff task: offlining 12 [ 89.749592] smpboot: CPU 12 is now offline [ 89.804730] rcu-torture:torture_onoff task: offlined 12 [ 90.805021] rcu-torture:torture_onoff task: offlining 7 [ 90.878281] smpboot: CPU 7 is now offline [ 90.933559] rcu-torture:torture_onoff task: offlined 7 [ 91.933009] rcu-torture:torture_onoff task: offlining 2 [ 92.041205] smpboot: CPU 2 is now offline [ 92.085497] rcu-torture:torture_onoff task: offlined 2 [ 93.085012] rcu-torture:torture_onoff task: onlining 14 [ 93.092669] smpboot: Booting Node 0 Processor 14 APIC 0xe [ 93.195163] rcu-torture:torture_onoff task: onlined 14 [ 94.206214] rcu-torture:torture_onoff task: onlining 10 [ 94.214679] smpboot: Booting Node 0 Processor 10 APIC 0xa [ 94.335117] rcu-torture:torture_onoff task: onlined 10 [ 95.335009] rcu-torture:torture_onoff task: onlining 5 [ 95.343523] smpboot: Booting Node 0 Processor 5 APIC 0x5 [ 95.428133] rcu-torture:torture_onoff task: onlined 5 [ 97.428020] rcu-torture:torture_onoff task: onlining 11 [ 97.482836] smpboot: Booting Node 0 Processor 11 APIC 0xb [ 97.509239] rcu-torture:torture_onoff task: onlined 11 [ 98.509045] rcu-torture:torture_onoff task: offlining 4 [ 98.563737] smpboot: CPU 4 is now offline [ 98.618051] rcu-torture:torture_onoff task: offlined 4 [ 99.618042] rcu-torture:torture_onoff task: offlining 13 [ 99.689524] smpboot: CPU 13 is now offline [ 99.744813] rcu-torture:torture_onoff task: offlined 13 [ 100.745028] rcu-torture:torture_onoff task: offlining 5 [ 100.800212] smpboot: CPU 5 is now offline [ 100.854566] rcu-torture:torture_onoff task: offlined 5 [ 101.854007] rcu-torture:torture_onoff task: onlining 12 [ 101.878507] smpboot: Booting Node 0 Processor 12 APIC 0xc [ 101.971166] rcu-torture:torture_onoff task: onlined 12 [ 102.971012] rcu-torture:torture_onoff task: offlining 1 [ 103.147591] smpboot: CPU 1 is now offline [ 103.152829] rcu-torture:torture_onoff task: offlined 1 [ 104.153008] rcu-torture:torture_onoff task: onlining 4 [ 104.168508] smpboot: Booting Node 0 Processor 4 APIC 0x4 [ 104.320120] rcu-torture:torture_onoff task: onlined 4 [ 105.320012] rcu-torture:torture_onoff task: onlining 5 [ 105.348790] smpboot: Booting Node 0 Processor 5 APIC 0x5 [ 105.408758] rcu-torture:torture_onoff task: onlined 5 [ 106.409013] rcu-torture:torture_onoff task: offlining 5 [ 106.464247] smpboot: CPU 5 is now offline [ 106.518638] rcu-torture:torture_onoff task: offlined 5 [ 107.520011] rcu-torture:torture_onoff task: onlining 2 [ 107.574734] smpboot: Booting Node 0 Processor 2 APIC 0x2 [ 107.605173] rcu-torture:torture_onoff task: onlined 2 [ 108.606012] rcu-torture:torture_onoff task: onlining 13 [ 108.660778] smpboot: Booting Node 0 Processor 13 APIC 0xd [ 108.701176] rcu-torture:torture_onoff task: onlined 13 [ 109.701020] rcu-torture:torture_onoff task: onlining 5 [ 109.755826] smpboot: Booting Node 0 Processor 5 APIC 0x5 [ 109.842203] rcu-torture:torture_onoff task: onlined 5 [ 110.842042] rcu-torture:torture_onoff task: offlining 11 [ 110.962787] smpboot: CPU 11 is now offline [ 111.018932] rcu-torture:torture_onoff task: offlined 11 [ 112.019012] rcu-torture:torture_onoff task: offlining 13 [ 112.084250] smpboot: CPU 13 is now offline [ 112.136796] rcu-torture:torture_onoff task: offlined 13 [ 113.137012] rcu-torture:torture_onoff task: offlining 12 [ 113.154984] smpboot: CPU 12 is now offline [ 113.160855] rcu-torture:torture_onoff task: offlined 12 [ 114.161011] rcu-torture:torture_onoff task: offlining 8 [ 114.264240] smpboot: CPU 8 is now offline [ 114.276779] rcu-torture:torture_onoff task: offlined 8 [ 116.277011] rcu-torture:torture_onoff task: offlining 5 [ 116.333258] smpboot: CPU 5 is now offline [ 116.387757] rcu-torture:torture_onoff task: offlined 5 [ 117.388014] rcu-torture:torture_onoff task: onlining 6 [ 117.442499] smpboot: Booting Node 0 Processor 6 APIC 0x6 [ 117.470138] rcu-torture:torture_onoff task: onlined 6 [ 118.470013] rcu-torture:torture_onoff task: offlining 2 [ 118.525211] smpboot: CPU 2 is now offline [ 118.529547] rcu-torture:torture_onoff task: offlined 2 [ 119.529012] rcu-torture:torture_onoff task: onlining 11 [ 119.537631] smpboot: Booting Node 0 Processor 11 APIC 0xb [ 119.564166] rcu-torture:torture_onoff task: onlined 11 [ 120.564011] rcu-torture:torture_onoff task: offlining 14 [ 120.619237] smpboot: CPU 14 is now offline [ 120.673701] rcu-torture:torture_onoff task: offlined 14 [ 121.163011] rcu-torture: rtc: ffffffff820d6b80 ver: 972 tfle: 0 rta: 972 rtaf: 0 rtf: 963 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 427620 onoff: 48/48:56/56 35,319:14,232 5863:5519 (HZ=1000) barrier: 0/0:0 cbflood: 236 [ 121.164580] rcu-torture: Reader Pipe: 3205717609 5572 0 0 0 0 0 0 0 0 0 [ 121.165245] rcu-torture: Reader Batch: 3130266830 75456351 0 0 0 0 0 0 0 0 0 [ 121.165928] rcu-torture: Free-Block Circulation: 971 971 970 969 968 967 966 965 964 963 0 [ 121.674012] rcu-torture:torture_onoff task: onlining 13 [ 121.682646] smpboot: Booting Node 0 Processor 13 APIC 0xd [ 121.760166] rcu-torture:torture_onoff task: onlined 13 [ 122.760013] rcu-torture:torture_onoff task: onlining 8 [ 122.769709] smpboot: Booting Node 0 Processor 8 APIC 0x8 [ 122.796168] rcu-torture:torture_onoff task: onlined 8 [ 123.796012] rcu-torture:torture_onoff task: offlining 13 [ 123.911235] smpboot: CPU 13 is now offline [ 123.955786] rcu-torture:torture_onoff task: offlined 13 [ 124.956012] rcu-torture:torture_onoff task: onlining 13 [ 124.976740] smpboot: Booting Node 0 Processor 13 APIC 0xd [ 125.064167] rcu-torture:torture_onoff task: onlined 13 [ 126.064011] rcu-torture:torture_onoff task: offlining 8 [ 126.237225] smpboot: CPU 8 is now offline [ 126.291774] rcu-torture:torture_onoff task: offlined 8 [ 127.293014] rcu-torture:torture_onoff task: onlining 12 [ 127.348537] smpboot: Booting Node 0 Processor 12 APIC 0xc [ 127.375208] rcu-torture:torture_onoff task: onlined 12 [ 128.375075] rcu-torture:torture_onoff task: offlining 12 [ 128.428324] smpboot: CPU 12 is now offline [ 128.481630] rcu-torture:torture_onoff task: offlined 12 [ 129.482056] rcu-torture:torture_onoff task: onlining 5 [ 129.536575] smpboot: Booting Node 0 Processor 5 APIC 0x5 [ 129.562253] rcu-torture:torture_onoff task: onlined 5 [ 130.562063] rcu-torture:torture_onoff task: onlining 8 [ 130.616613] smpboot: Booting Node 0 Processor 8 APIC 0x8 [ 130.643248] rcu-torture:torture_onoff task: onlined 8 [ 131.643021] rcu-torture:torture_onoff task: offlining 5 [ 131.755237] smpboot: CPU 5 is now offline [ 131.770580] rcu-torture:torture_onoff task: offlined 5 [ 132.772010] rcu-torture:torture_onoff task: offlining 11 [ 132.831224] smpboot: CPU 11 is now offline [ 132.835566] rcu-torture:torture_onoff task: offlined 11 [ 133.835008] rcu-torture:torture_onoff task: offlining 10 [ 133.876259] smpboot: CPU 10 is now offline [ 133.880526] rcu-torture:torture_onoff task: offlined 10 [ 134.880010] rcu-torture:torture_onoff task: offlining 3 [ 134.977633] smpboot: CPU 3 is now offline [ 134.982503] rcu-torture:torture_onoff task: offlined 3 [ 135.982008] rcu-torture:torture_onoff task: offlining 4 [ 136.059186] smpboot: CPU 4 is now offline [ 136.072155] rcu-torture:torture_onoff task: offlined 4 [ 137.072011] rcu-torture:torture_onoff task: onlining 14 [ 137.080403] smpboot: Booting Node 0 Processor 14 APIC 0xe [ 137.108127] rcu-torture:torture_onoff task: onlined 14 [ 138.108010] rcu-torture:torture_onoff task: onlining 1 [ 138.162404] x86: Booting SMP configuration: [ 138.162726] smpboot: Booting Node 0 Processor 1 APIC 0x1 [ 138.187156] rcu-torture:torture_onoff task: onlined 1 [ 139.187026] rcu-torture:torture_onoff task: onlining 11 [ 139.241678] smpboot: Booting Node 0 Processor 11 APIC 0xb [ 139.266211] rcu-torture:torture_onoff task: onlined 11 [ 140.266085] rcu-torture:torture_onoff task: offlining 14 [ 140.324971] smpboot: CPU 14 is now offline [ 140.379519] rcu-torture:torture_onoff task: offlined 14 [ 141.379013] rcu-torture:torture_onoff task: onlining 10 [ 141.387463] smpboot: Booting Node 0 Processor 10 APIC 0xa [ 141.621164] rcu-torture:torture_onoff task: onlined 10 [ 142.621011] rcu-torture:torture_onoff task: onlining 12 [ 142.629728] smpboot: Booting Node 0 Processor 12 APIC 0xc [ 142.753171] rcu-torture:torture_onoff task: onlined 12 [ 143.753012] rcu-torture:torture_onoff task: onlining 7 [ 143.793773] smpboot: Booting Node 0 Processor 7 APIC 0x7 [ 143.850176] rcu-torture:torture_onoff task: onlined 7 [ 144.850014] rcu-torture:torture_onoff task: offlining 8 [ 144.925278] smpboot: CPU 8 is now offline [ 144.972839] rcu-torture:torture_onoff task: offlined 8 [ 145.973432] rcu-torture:torture_onoff task: offlining 1 [ 145.988224] smpboot: CPU 1 is now offline [ 145.992547] rcu-torture:torture_onoff task: offlined 1 [ 146.992070] rcu-torture:torture_onoff task: onlining 1 [ 147.046569] x86: Booting SMP configuration: [ 147.046951] smpboot: Booting Node 0 Processor 1 APIC 0x1 [ 147.071234] rcu-torture:torture_onoff task: onlined 1 [ 148.071082] rcu-torture:torture_onoff task: onlining 8 [ 148.125583] smpboot: Booting Node 0 Processor 8 APIC 0x8 [ 148.246253] rcu-torture:torture_onoff task: onlined 8 [ 149.246087] rcu-torture:torture_onoff task: offlining 6 [ 149.301397] smpboot: CPU 6 is now offline [ 149.355742] rcu-torture:torture_onoff task: offlined 6 [ 150.356083] rcu-torture:torture_onoff task: offlining 9 [ 150.411331] smpboot: CPU 9 is now offline [ 150.465602] rcu-torture:torture_onoff task: offlined 9 [ 151.466027] rcu-torture:torture_onoff task: onlining 4 [ 151.506652] smpboot: Booting Node 0 Processor 4 APIC 0x4 [ 151.607282] rcu-torture:torture_onoff task: onlined 4 [ 152.607013] rcu-torture:torture_onoff task: offlining 4 [ 152.619229] smpboot: CPU 4 is now offline [ 152.623673] rcu-torture:torture_onoff task: offlined 4 [ 153.624012] rcu-torture:torture_onoff task: offlining 10 [ 153.642208] smpboot: CPU 10 is now offline [ 153.646624] rcu-torture:torture_onoff task: offlined 10 [ 154.647009] rcu-torture:torture_onoff task: onlining 6 [ 154.672468] smpboot: Booting Node 0 Processor 6 APIC 0x6 [ 154.952173] rcu-torture:torture_onoff task: onlined 6 [ 155.952011] rcu-torture:torture_onoff task: offlining 7 [ 155.998230] smpboot: CPU 7 is now offline [ 156.040732] rcu-torture:torture_onoff task: offlined 7 [ 157.041007] rcu-torture:torture_onoff task: onlining 14 [ 157.095463] smpboot: Booting Node 0 Processor 14 APIC 0xe [ 157.123126] rcu-torture:torture_onoff task: onlined 14 [ 158.124008] rcu-torture:torture_onoff task: onlining 10 [ 158.179465] smpboot: Booting Node 0 Processor 10 APIC 0xa [ 158.208159] rcu-torture:torture_onoff task: onlined 10 [ 159.209012] rcu-torture:torture_onoff task: offlining 11 [ 159.288513] smpboot: CPU 11 is now offline [ 159.342602] rcu-torture:torture_onoff task: offlined 11 [ 161.343028] rcu-torture:torture_onoff task: offlining 10 [ 161.532630] smpboot: CPU 10 is now offline [ 161.538953] rcu-torture:torture_onoff task: offlined 10 [ 162.539012] rcu-torture:torture_onoff task: onlining 9 [ 162.592954] smpboot: Booting Node 0 Processor 9 APIC 0x9 [ 162.691169] rcu-torture:torture_onoff task: onlined 9 [ 163.699428] rcu-torture:torture_onoff task: offlining 12 [ 163.787094] smpboot: CPU 12 is now offline [ 163.791727] rcu-torture:torture_onoff task: offlined 12 [ 164.792008] rcu-torture:torture_onoff task: onlining 2 [ 164.832477] smpboot: Booting Node 0 Processor 2 APIC 0x2 [ 164.926143] rcu-torture:torture_onoff task: onlined 2 [ 165.926008] rcu-torture:torture_onoff task: offlining 13 [ 165.977219] smpboot: CPU 13 is now offline [ 165.983491] rcu-torture:torture_onoff task: offlined 13 [ 166.983009] rcu-torture:torture_onoff task: onlining 11 [ 167.037444] smpboot: Booting Node 0 Processor 11 APIC 0xb [ 167.091149] rcu-torture:torture_onoff task: onlined 11 [ 168.091022] rcu-torture:torture_onoff task: onlining 13 [ 168.146672] smpboot: Booting Node 0 Processor 13 APIC 0xd [ 168.205181] rcu-torture:torture_onoff task: onlined 13 [ 169.205020] rcu-torture:torture_onoff task: offlining 2 [ 169.261253] smpboot: CPU 2 is now offline [ 169.316811] rcu-torture:torture_onoff task: offlined 2 [ 170.317021] rcu-torture:torture_onoff task: onlining 10 [ 170.372697] smpboot: Booting Node 0 Processor 10 APIC 0xa [ 170.426193] rcu-torture:torture_onoff task: onlined 10 [ 171.426012] rcu-torture:torture_onoff task: onlining 5 [ 171.471808] smpboot: Booting Node 0 Processor 5 APIC 0x5 [ 171.589994] rcu-torture:torture_onoff task: onlined 5 [ 172.590013] rcu-torture:torture_onoff task: onlining 2 [ 172.598761] smpboot: Booting Node 0 Processor 2 APIC 0x2 [ 172.751166] rcu-torture:torture_onoff task: onlined 2 [ 173.751011] rcu-torture:torture_onoff task: onlining 3 [ 173.805841] smpboot: Booting Node 0 Processor 3 APIC 0x3 [ 174.070161] rcu-torture:torture_onoff task: onlined 3 [ 175.080195] rcu-torture:torture_onoff task: offlining 5 [ 175.179614] smpboot: CPU 5 is now offline [ 175.186036] rcu-torture:torture_onoff task: offlined 5 [ 176.186026] rcu-torture:torture_onoff task: offlining 10 [ 176.252265] smpboot: CPU 10 is now offline [ 176.306864] rcu-torture:torture_onoff task: offlined 10 [ 178.307012] rcu-torture:torture_onoff task: offlining 9 [ 178.398309] smpboot: CPU 9 is now offline [ 178.452600] rcu-torture:torture_onoff task: offlined 9 [ 179.453008] rcu-torture:torture_onoff task: offlining 3 [ 179.508214] smpboot: CPU 3 is now offline [ 179.562522] rcu-torture:torture_onoff task: offlined 3 [ 180.562008] rcu-torture:torture_onoff task: offlining 14 [ 180.617202] smpboot: CPU 14 is now offline [ 180.671471] rcu-torture:torture_onoff task: offlined 14 [ 181.166014] rcu-torture: rtc: ffffffff820d6760 ver: 1451 tfle: 0 rta: 1451 rtaf: 0 rtf: 1442 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 640476 onoff: 74/74:82/82 35,319:14,232 9128:8228 (HZ=1000) barrier: 0/0:0 cbflood: 352 [ 181.168279] rcu-torture: Reader Pipe: 4782759012 8318 0 0 0 0 0 0 0 0 0 [ 181.169233] rcu-torture: Reader Batch: 4672385735 110381595 0 0 0 0 0 0 0 0 0 [ 181.170216] rcu-torture: Free-Block Circulation: 1450 1450 1449 1448 1447 1446 1445 1444 1443 1442 0 [ 181.692232] rcu-torture:torture_onoff task: onlining 10 [ 181.754674] smpboot: Booting Node 0 Processor 10 APIC 0xa [ 181.833162] rcu-torture:torture_onoff task: onlined 10 [ 182.833013] rcu-torture:torture_onoff task: offlining 8 [ 182.899242] smpboot: CPU 8 is now offline [ 182.941036] rcu-torture:torture_onoff task: offlined 8 [ 183.964159] rcu-torture:torture_onoff task: offlining 6 [ 183.984255] smpboot: CPU 6 is now offline [ 183.988894] rcu-torture:torture_onoff task: offlined 6 [ 184.989013] rcu-torture:torture_onoff task: onlining 5 [ 185.026816] smpboot: Booting Node 0 Processor 5 APIC 0x5 [ 185.058174] rcu-torture:torture_onoff task: onlined 5 [ 186.058022] rcu-torture:torture_onoff task: offlining 5 [ 186.087219] smpboot: CPU 5 is now offline [ 186.091684] rcu-torture:torture_onoff task: offlined 5 [ 187.092028] rcu-torture:torture_onoff task: onlining 5 [ 187.147618] smpboot: Booting Node 0 Processor 5 APIC 0x5 [ 187.177207] rcu-torture:torture_onoff task: onlined 5 [ 188.177014] rcu-torture:torture_onoff task: onlining 4 [ 191.251478] smpboot: Booting Node 0 Processor 4 APIC 0x4 [ 191.400144] rcu-torture:torture_onoff task: onlined 4 [ 192.400012] rcu-torture:torture_onoff task: offlining 4 [ 192.569230] smpboot: CPU 4 is now offline [ 192.573752] rcu-torture:torture_onoff task: offlined 4 [ 193.574011] rcu-torture:torture_onoff task: onlining 4 [ 193.583672] smpboot: Booting Node 0 Processor 4 APIC 0x4 [ 193.673166] rcu-torture:torture_onoff task: onlined 4 [ 194.673021] rcu-torture:torture_onoff task: onlining 3 [ 194.698722] smpboot: Booting Node 0 Processor 3 APIC 0x3 [ 194.900169] rcu-torture:torture_onoff task: onlined 3 [ 195.900011] rcu-torture:torture_onoff task: offlining 1 [ 195.923236] smpboot: CPU 1 is now offline [ 195.928847] rcu-torture:torture_onoff task: offlined 1 [ 196.929012] rcu-torture:torture_onoff task: onlining 14 [ 196.983708] smpboot: Booting Node 0 Processor 14 APIC 0xe [ 197.006351] rcu-torture:torture_onoff task: onlined 14 [ 198.006015] rcu-torture:torture_onoff task: offlining 11 [ 198.061232] smpboot: CPU 11 is now offline [ 198.115789] rcu-torture:torture_onoff task: offlined 11 [ 199.116014] rcu-torture:torture_onoff task: onlining 6 [ 199.170674] smpboot: Booting Node 0 Processor 6 APIC 0x6 [ 199.193338] rcu-torture:torture_onoff task: onlined 6 [ 200.193014] rcu-torture:torture_onoff task: offlining 15 [ 200.248238] smpboot: CPU 15 is now offline [ 200.302540] rcu-torture:torture_onoff task: offlined 15 [ 201.302008] rcu-torture:torture_onoff task: onlining 8 [ 201.310466] smpboot: Booting Node 0 Processor 8 APIC 0x8 [ 201.422183] rcu-torture:torture_onoff task: onlined 8 [ 202.422013] rcu-torture:torture_onoff task: offlining 14 [ 202.548257] smpboot: CPU 14 is now offline [ 202.594923] rcu-torture:torture_onoff task: offlined 14 [ 203.595023] rcu-torture:torture_onoff task: offlining 2 [ 203.659226] smpboot: CPU 2 is now offline [ 203.706239] rcu-torture:torture_onoff task: offlined 2 [ 204.706011] rcu-torture:torture_onoff task: offlining 4 [ 204.739154] smpboot: CPU 4 is now offline [ 204.743676] rcu-torture:torture_onoff task: offlined 4 [ 205.744016] rcu-torture:torture_onoff task: onlining 4 [ 205.752612] smpboot: Booting Node 0 Processor 4 APIC 0x4 [ 205.793165] rcu-torture:torture_onoff task: onlined 4 [ 206.793016] rcu-torture:torture_onoff task: onlining 1 [ 206.848662] x86: Booting SMP configuration: [ 206.849145] smpboot: Booting Node 0 Processor 1 APIC 0x1 [ 206.902207] rcu-torture:torture_onoff task: onlined 1 [ 207.902020] rcu-torture:torture_onoff task: onlining 12 [ 207.957701] smpboot: Booting Node 0 Processor 12 APIC 0xc [ 207.986192] rcu-torture:torture_onoff task: onlined 12 [ 208.986079] rcu-torture:torture_onoff task: offlining 4 [ 209.092090] smpboot: CPU 4 is now offline [ 209.146701] rcu-torture:torture_onoff task: offlined 4 [ 210.147068] rcu-torture:torture_onoff task: offlining 8 [ 210.215055] smpboot: CPU 8 is now offline [ 210.269872] rcu-torture:torture_onoff task: offlined 8 [ 211.270011] rcu-torture:torture_onoff task: onlining 9 [ 211.279694] smpboot: Booting Node 0 Processor 9 APIC 0x9 [ 211.419172] rcu-torture:torture_onoff task: onlined 9 [ 212.449010] rcu-torture:torture_onoff task: onlining 7 [ 212.457481] smpboot: Booting Node 0 Processor 7 APIC 0x7 [ 212.686120] rcu-torture:torture_onoff task: onlined 7 [ 213.686026] rcu-torture:torture_onoff task: offlining 1 [ 213.830250] smpboot: CPU 1 is now offline [ 213.834810] rcu-torture:torture_onoff task: offlined 1 [ 214.835012] rcu-torture:torture_onoff task: offlining 7 [ 214.846257] smpboot: CPU 7 is now offline [ 214.850711] rcu-torture:torture_onoff task: offlined 7 [ 215.851012] rcu-torture:torture_onoff task: offlining 9 [ 215.866262] smpboot: CPU 9 is now offline [ 215.915500] rcu-torture:torture_onoff task: offlined 9 [ 216.915011] rcu-torture:torture_onoff task: onlining 7 [ 216.923407] smpboot: Booting Node 0 Processor 7 APIC 0x7 [ 216.949146] rcu-torture:torture_onoff task: onlined 7 [ 217.949009] rcu-torture:torture_onoff task: onlining 1 [ 218.003444] x86: Booting SMP configuration: [ 218.003775] smpboot: Booting Node 0 Processor 1 APIC 0x1 [ 218.032159] rcu-torture:torture_onoff task: onlined 1 [ 219.032015] rcu-torture:torture_onoff task: offlining 6 [ 219.087239] smpboot: CPU 6 is now offline [ 219.141521] rcu-torture:torture_onoff task: offlined 6 [ 220.141012] rcu-torture:torture_onoff task: onlining 6 [ 220.149451] smpboot: Booting Node 0 Processor 6 APIC 0x6 [ 220.175130] rcu-torture:torture_onoff task: onlined 6 [ 221.175014] rcu-torture:torture_onoff task: offlining 1 [ 221.230231] smpboot: CPU 1 is now offline [ 221.245187] rcu-torture:torture_onoff task: offlined 1 [ 222.245890] rcu-torture:torture_onoff task: offlining 7 [ 222.313765] smpboot: CPU 7 is now offline [ 222.318570] rcu-torture:torture_onoff task: offlined 7 [ 223.319033] rcu-torture:torture_onoff task: onlining 7 [ 223.364428] smpboot: Booting Node 0 Processor 7 APIC 0x7 [ 223.534164] rcu-torture:torture_onoff task: onlined 7 [ 224.534007] rcu-torture:torture_onoff task: onlining 2 [ 224.542438] smpboot: Booting Node 0 Processor 2 APIC 0x2 [ 224.650320] rcu-torture:torture_onoff task: onlined 2 [ 225.667934] rcu-torture:torture_onoff task: onlining 8 [ 225.689715] smpboot: Booting Node 0 Processor 8 APIC 0x8 [ 226.055186] rcu-torture:torture_onoff task: onlined 8 [ 227.055016] rcu-torture:torture_onoff task: offlining 7 [ 227.110245] smpboot: CPU 7 is now offline [ 227.164585] rcu-torture:torture_onoff task: offlined 7 [ 229.164037] rcu-torture:torture_onoff task: offlining 3 [ 229.222238] smpboot: CPU 3 is now offline [ 229.277038] rcu-torture:torture_onoff task: offlined 3 [ 231.277011] rcu-torture:torture_onoff task: offlining 6 [ 231.330544] smpboot: CPU 6 is now offline [ 231.378858] rcu-torture:torture_onoff task: offlined 6 [ 232.379622] rcu-torture:torture_onoff task: offlining 5 [ 232.452196] smpboot: CPU 5 is now offline [ 232.506626] rcu-torture:torture_onoff task: offlined 5 [ 233.507009] rcu-torture:torture_onoff task: offlining 13 [ 233.681190] smpboot: CPU 13 is now offline [ 233.685601] rcu-torture:torture_onoff task: offlined 13 [ 234.686009] rcu-torture:torture_onoff task: onlining 13 [ 234.739469] smpboot: Booting Node 0 Processor 13 APIC 0xd [ 234.777109] rcu-torture:torture_onoff task: onlined 13 [ 235.777009] rcu-torture:torture_onoff task: onlining 7 [ 235.792560] smpboot: Booting Node 0 Processor 7 APIC 0x7 [ 235.894313] rcu-torture:torture_onoff task: onlined 7 [ 236.894008] rcu-torture:torture_onoff task: offlining 8 [ 236.949250] smpboot: CPU 8 is now offline [ 237.005598] rcu-torture:torture_onoff task: offlined 8 [ 238.005071] rcu-torture:torture_onoff task: offlining 2 [ 238.060298] smpboot: CPU 2 is now offline [ 238.114455] rcu-torture:torture_onoff task: offlined 2 [ 239.115009] rcu-torture:torture_onoff task: onlining 4 [ 239.169339] smpboot: Booting Node 0 Processor 4 APIC 0x4 [ 239.196127] rcu-torture:torture_onoff task: onlined 4 [ 240.196009] rcu-torture:torture_onoff task: onlining 14 [ 240.250356] smpboot: Booting Node 0 Processor 14 APIC 0xe [ 240.276143] rcu-torture:torture_onoff task: onlined 14 [ 241.171022] rcu-torture: rtc: ffffffff820d6d30 ver: 1972 tfle: 0 rta: 1972 rtaf: 0 rtf: 1963 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 821755 onoff: 98/98:107/107 34,3223:14,232 15097:10753 (HZ=1000) barrier: 0/0:0 cbflood: 469 [ 241.172670] rcu-torture: Reader Pipe: 6230009275 11244 0 0 0 0 0 0 0 0 0 [ 241.173342] rcu-torture: Reader Batch: 6077569610 152450909 0 0 0 0 0 0 0 0 0 [ 241.174041] rcu-torture: Free-Block Circulation: 1971 1971 1970 1969 1968 1967 1966 1965 1964 1963 0 [ 241.302095] rcu-torture:torture_onoff task: onlining 15 [ 241.338408] smpboot: Booting Node 0 Processor 15 APIC 0xf [ 241.403182] rcu-torture:torture_onoff task: onlined 15 [ 242.403011] rcu-torture:torture_onoff task: onlining 8 [ 242.411629] smpboot: Booting Node 0 Processor 8 APIC 0x8 [ 242.598170] rcu-torture:torture_onoff task: onlined 8 [ 243.598011] rcu-torture:torture_onoff task: offlining 8 [ 243.638205] smpboot: CPU 8 is now offline [ 243.643015] rcu-torture:torture_onoff task: offlined 8 [ 244.675380] rcu-torture:torture_onoff task: offlining 15 [ 244.697825] smpboot: CPU 15 is now offline [ 244.703386] rcu-torture:torture_onoff task: offlined 15 [ 245.703009] rcu-torture:torture_onoff task: offlining 13 [ 245.836597] smpboot: CPU 13 is now offline [ 245.840638] rcu-torture:torture_onoff task: offlined 13 [ 246.841011] rcu-torture:torture_onoff task: onlining 2 [ 246.849513] smpboot: Booting Node 0 Processor 2 APIC 0x2 [ 246.876125] rcu-torture:torture_onoff task: onlined 2 [ 247.876013] rcu-torture:torture_onoff task: offlining 14 [ 247.931174] smpboot: CPU 14 is now offline [ 247.986453] rcu-torture:torture_onoff task: offlined 14 [ 248.986012] rcu-torture:torture_onoff task: onlining 15 [ 248.994361] smpboot: Booting Node 0 Processor 15 APIC 0xf [ 249.020164] rcu-torture:torture_onoff task: onlined 15 [ 250.020013] rcu-torture:torture_onoff task: offlining 7 [ 250.027190] smpboot: CPU 7 is now offline [ 250.031444] rcu-torture:torture_onoff task: offlined 7 [ 251.031008] rcu-torture:torture_onoff task: onlining 5 [ 251.039363] smpboot: Booting Node 0 Processor 5 APIC 0x5 [ 251.065109] rcu-torture:torture_onoff task: onlined 5 [ 252.065009] rcu-torture:torture_onoff task: onlining 8 [ 252.200399] smpboot: Booting Node 0 Processor 8 APIC 0x8 [ 252.412118] rcu-torture:torture_onoff task: onlined 8 [ 253.443465] rcu-torture:torture_onoff task: onlining 1 [ 253.452680] x86: Booting SMP configuration: [ 253.453200] smpboot: Booting Node 0 Processor 1 APIC 0x1 [ 253.480175] rcu-torture:torture_onoff task: onlined 1 [ 255.480012] rcu-torture:torture_onoff task: onlining 3 [ 255.497717] smpboot: Booting Node 0 Processor 3 APIC 0x3 [ 255.581151] rcu-torture:torture_onoff task: onlined 3 [ 256.581019] rcu-torture:torture_onoff task: offlining 12 [ 256.639488] smpboot: CPU 12 is now offline [ 256.696557] rcu-torture:torture_onoff task: offlined 12 [ 257.697028] rcu-torture:torture_onoff task: offlining 10 [ 257.792240] smpboot: CPU 10 is now offline [ 257.846715] rcu-torture:torture_onoff task: offlined 10 [ 258.847026] rcu-torture:torture_onoff task: onlining 12 [ 259.702842] smpboot: Booting Node 0 Processor 12 APIC 0xc [ 259.746426] rcu-torture:torture_onoff task: onlined 12 [ 260.747028] rcu-torture:torture_onoff task: offlining 2 [ 261.294198] smpboot: CPU 2 is now offline [ 261.298961] rcu-torture:torture_onoff task: offlined 2 [ 262.337169] rcu-torture:torture_onoff task: onlining 13 [ 262.373898] smpboot: Booting Node 0 Processor 13 APIC 0xd [ 262.517168] rcu-torture:torture_onoff task: onlined 13 [ 263.518011] rcu-torture:torture_onoff task: offlining 12 [ 263.547235] smpboot: CPU 12 is now offline [ 263.597744] rcu-torture:torture_onoff task: offlined 12 [ 264.599177] rcu-torture:torture_onoff task: offlining 15 [ 264.639259] smpboot: CPU 15 is now offline [ 264.685479] rcu-torture:torture_onoff task: offlined 15 [ 265.705420] rcu-torture:torture_onoff task: onlining 6 [ 265.723408] smpboot: Booting Node 0 Processor 6 APIC 0x6 [ 265.769132] rcu-torture:torture_onoff task: onlined 6 [ 267.769062] rcu-torture:torture_onoff task: offlining 13 [ 267.824295] smpboot: CPU 13 is now offline [ 267.878505] rcu-torture:torture_onoff task: offlined 13 [ 268.878008] rcu-torture:torture_onoff task: onlining 14 [ 268.932411] smpboot: Booting Node 0 Processor 14 APIC 0xe [ 268.958155] rcu-torture:torture_onoff task: onlined 14 [ 269.958015] rcu-torture:torture_onoff task: offlining 1 [ 270.013265] smpboot: CPU 1 is now offline [ 270.067678] rcu-torture:torture_onoff task: offlined 1 [ 271.068092] rcu-torture:torture_onoff task: onlining 7 [ 271.122640] smpboot: Booting Node 0 Processor 7 APIC 0x7 [ 271.148345] rcu-torture:torture_onoff task: onlined 7 [ 273.148012] rcu-torture:torture_onoff task: onlining 12 [ 273.156895] smpboot: Booting Node 0 Processor 12 APIC 0xc [ 273.228932] rcu-torture:torture_onoff task: onlined 12 [ 274.229627] rcu-torture:torture_onoff task: onlining 9 [ 274.239860] smpboot: Booting Node 0 Processor 9 APIC 0x9 [ 274.335157] rcu-torture:torture_onoff task: onlined 9 [ 275.335012] rcu-torture:torture_onoff task: offlining 8 [ 275.383214] smpboot: CPU 8 is now offline [ 275.406042] rcu-torture:torture_onoff task: offlined 8 [ 276.406017] rcu-torture:torture_onoff task: onlining 10 [ 276.460653] smpboot: Booting Node 0 Processor 10 APIC 0xa [ 276.489140] rcu-torture:torture_onoff task: onlined 10 [ 277.489039] rcu-torture:torture_onoff task: onlining 13 [ 277.558410] smpboot: Booting Node 0 Processor 13 APIC 0xd [ 277.587402] rcu-torture:torture_onoff task: onlined 13 [ 278.588352] rcu-torture:torture_onoff task: onlining 1 [ 278.642988] x86: Booting SMP configuration: [ 278.643476] smpboot: Booting Node 0 Processor 1 APIC 0x1 [ 278.682425] rcu-torture:torture_onoff task: onlined 1 [ 279.683020] rcu-torture:torture_onoff task: offlining 7 [ 279.739540] smpboot: CPU 7 is now offline [ 279.792913] rcu-torture:torture_onoff task: offlined 7 [ 280.793054] rcu-torture:torture_onoff task: offlining 14 [ 280.858439] smpboot: CPU 14 is now offline [ 280.913004] rcu-torture:torture_onoff task: offlined 14 [ 281.918280] rcu-torture:torture_onoff task: offlining 5 [ 281.961289] smpboot: CPU 5 is now offline [ 281.966746] rcu-torture:torture_onoff task: offlined 5 [ 282.967009] rcu-torture:torture_onoff task: onlining 14 [ 282.978634] smpboot: Booting Node 0 Processor 14 APIC 0xe [ 283.102133] rcu-torture:torture_onoff task: onlined 14 [ 284.106745] rcu-torture:torture_onoff task: offlining 6 [ 284.200248] smpboot: CPU 6 is now offline [ 284.205012] rcu-torture:torture_onoff task: offlined 6 [ 286.205019] rcu-torture:torture_onoff task: offlining 9 [ 286.261333] smpboot: CPU 9 is now offline [ 286.267960] rcu-torture:torture_onoff task: offlined 9 [ 287.268016] rcu-torture:torture_onoff task: onlining 2 [ 287.322841] smpboot: Booting Node 0 Processor 2 APIC 0x2 [ 287.350199] rcu-torture:torture_onoff task: onlined 2 [ 288.350017] rcu-torture:torture_onoff task: onlining 11 [ 288.404892] smpboot: Booting Node 0 Processor 11 APIC 0xb [ 288.433392] rcu-torture:torture_onoff task: onlined 11 [ 289.434021] rcu-torture:torture_onoff task: offlining 4 [ 289.498357] smpboot: CPU 4 is now offline [ 289.551981] rcu-torture:torture_onoff task: offlined 4 [ 290.552025] rcu-torture:torture_onoff task: offlining 12 [ 290.608217] smpboot: CPU 12 is now offline [ 290.672899] rcu-torture:torture_onoff task: offlined 12 [ 291.673013] rcu-torture:torture_onoff task: offlining 3 [ 291.729198] smpboot: CPU 3 is now offline [ 291.733673] rcu-torture:torture_onoff task: offlined 3 [ 292.734013] rcu-torture:torture_onoff task: onlining 9 [ 292.777604] smpboot: Booting Node 0 Processor 9 APIC 0x9 [ 292.885143] rcu-torture:torture_onoff task: onlined 9 [ 293.885011] rcu-torture:torture_onoff task: onlining 15 [ 293.893633] smpboot: Booting Node 0 Processor 15 APIC 0xf [ 294.034163] rcu-torture:torture_onoff task: onlined 15 [ 295.065074] rcu-torture:torture_onoff task: offlining 2 [ 295.118208] smpboot: CPU 2 is now offline [ 295.124735] rcu-torture:torture_onoff task: offlined 2 [ 296.160078] rcu-torture:torture_onoff task: onlining 4 [ 296.176467] smpboot: Booting Node 0 Processor 4 APIC 0x4 [ 296.346146] rcu-torture:torture_onoff task: onlined 4 [ 297.346015] rcu-torture:torture_onoff task: onlining 5 [ 297.400478] smpboot: Booting Node 0 Processor 5 APIC 0x5 [ 297.428210] rcu-torture:torture_onoff task: onlined 5 [ 298.428038] rcu-torture:torture_onoff task: onlining 3 [ 298.499156] smpboot: Booting Node 0 Processor 3 APIC 0x3 [ 298.551823] rcu-torture:torture_onoff task: onlined 3 [ 300.552021] rcu-torture:torture_onoff task: offlining 10 [ 300.609517] smpboot: CPU 10 is now offline [ 300.664816] rcu-torture:torture_onoff task: offlined 10 [ 301.174013] rcu-torture: rtc: ffffffff820d63a0 ver: 2525 tfle: 0 rta: 2525 rtaf: 0 rtf: 2516 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 1000461 onoff: 124/124:130/130 34,3223:11,552 18699:13272 (HZ=1000) barrier: 0/0:0 cbflood: 588 [ 301.176369] rcu-torture: Reader Pipe: 7696148438 14411 0 0 0 0 0 0 0 0 0 [ 301.177314] rcu-torture: Reader Batch: 7505961227 190201622 0 0 0 0 0 0 0 0 0 [ 301.178302] rcu-torture: Free-Block Circulation: 2524 2524 2523 2522 2521 2520 2519 2518 2517 2516 0 [ 301.665013] rcu-torture:torture_onoff task: onlining 2 [ 301.673722] smpboot: Booting Node 0 Processor 2 APIC 0x2 [ 301.742192] rcu-torture:torture_onoff task: onlined 2 [ 302.742013] rcu-torture:torture_onoff task: onlining 7 [ 302.750787] smpboot: Booting Node 0 Processor 7 APIC 0x7 [ 302.833156] rcu-torture:torture_onoff task: onlined 7 [ 303.833014] rcu-torture:torture_onoff task: offlining 9 [ 303.868266] smpboot: CPU 9 is now offline [ 303.917852] rcu-torture:torture_onoff task: offlined 9 [ 304.918011] rcu-torture:torture_onoff task: onlining 8 [ 304.926769] smpboot: Booting Node 0 Processor 8 APIC 0x8 [ 305.000154] rcu-torture:torture_onoff task: onlined 8 [ 306.000014] rcu-torture:torture_onoff task: offlining 4 [ 306.074862] smpboot: CPU 4 is now offline [ 306.079901] rcu-torture:torture_onoff task: offlined 4 [ 307.081011] rcu-torture:torture_onoff task: onlining 12 [ 307.135781] smpboot: Booting Node 0 Processor 12 APIC 0xc [ 307.230838] rcu-torture:torture_onoff task: onlined 12 [ 308.231033] rcu-torture:torture_onoff task: offlining 1 [ 308.291112] smpboot: CPU 1 is now offline [ 308.291635] BUG: unable to handle kernel NULL pointer dereference at (null) [ 308.292063] IP: [] migrate_timer_list+0x32/0xc0 [ 308.292063] PGD 0 [ 308.292063] Oops: 0002 [#1] PREEMPT SMP [ 308.292063] Modules linked in: [ 308.292063] CPU: 11 PID: 798 Comm: torture_onoff Not tainted 4.5.0-rc1+ #14 [ 308.292063] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 308.292063] task: ffff88007cafcb00 ti: ffff88007c6f4000 task.ti: ffff88007c6f4000 [ 308.292063] RIP: 0010:[] [] migrate_timer_list+0x32/0xc0 [ 308.292063] RSP: 0018:ffff88007c6f7c98 EFLAGS: 00010086 [ 308.292063] RAX: dead000000000200 RBX: ffff88007fb6cc00 RCX: ffff88007fa2cc00 [ 308.292063] RDX: 0000000000000000 RSI: ffff88007fa2d6d0 RDI: ffff88007fb6cc00 [ 308.292063] RBP: ffff88007c6f7cc0 R08: 0000000000000000 R09: ffffffff81e4d360 [ 308.292063] R10: ffffea0001f2daa0 R11: 0000000000000000 R12: ffff88007fa2d6d0 [ 308.292063] R13: ffff88007fb6cc00 R14: 000000000000000b R15: ffff88007fa2c420 [ 308.292063] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000 [ 308.292063] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 308.292063] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 308.292063] Stack: [ 308.292063] ffff88007fb6cc00 ffff88007fa2d6d8 ffff88007fa2dad0 ffff88007fa2d8d0 [ 308.292063] ffff88007fa2d4d8 ffff88007c6f7d08 ffffffff810b95c4 ffff88007fa2cc00 [ 308.292063] ffff88007fa2d648 00000000fffffff0 ffffffff81e4e0c0 0000000000000007 [ 308.292063] Call Trace: [ 308.292063] [] timer_cpu_notify+0xe4/0x160 [ 308.292063] [] notifier_call_chain+0x45/0x70 [ 308.292063] [] __raw_notifier_call_chain+0x9/0x10 [ 308.292063] [] cpu_notify_nofail+0x1e/0x30 [ 308.292063] [] _cpu_down+0x212/0x350 [ 308.292063] [] ? __call_rcu.constprop.74+0x380/0x380 [ 308.292063] [] ? call_rcu_bh+0x20/0x20 [ 308.292063] [] ? __rcu_read_unlock+0x50/0x50 [ 308.292063] [] ? __rcu_read_unlock+0x50/0x50 [ 308.292063] [] cpu_down+0x2f/0x50 [ 308.292063] [] torture_onoff+0x115/0x380 [ 308.292063] [] ? torture_kthread_stopping+0x70/0x70 [ 308.292063] [] kthread+0xd6/0xf0 [ 308.292063] [] ? kthread_worker_fn+0x180/0x180 [ 308.292063] [] ret_from_fork+0x3f/0x70 [ 308.292063] [] ? kthread_worker_fn+0x180/0x180 [ 308.292063] Code: 56 41 55 41 54 53 48 8b 06 44 8b 77 40 48 85 c0 74 53 49 89 fd 49 89 f4 4d 8b 3c 24 66 66 66 66 90 49 8b 07 49 8b 57 08 48 85 c0 <48> 89 02 74 04 48 89 50 08 48 b8 00 02 00 00 00 00 ad de 4c 89 [ 308.292063] RIP [] migrate_timer_list+0x32/0xc0 [ 308.292063] RSP [ 308.292063] CR2: 0000000000000000 [ 308.292063] ---[ end trace 29cb5d70ad875872 ]--- [ 308.292063] note: torture_onoff[798] exited with preempt_count 3 [ 336.362003] INFO: rcu_preempt detected stalls on CPUs/tasks: [ 336.362003] 3-...: (1 GPs behind) idle=6cf/140000000000000/0 softirq=8341/8345 fqs=7000 [ 336.362003] 8-...: (1 GPs behind) idle=503/140000000000001/0 softirq=9290/9294 fqs=7000 [ 336.362003] 11-...: (1 GPs behind) idle=32f/140000000000001/0 softirq=8320/8323 fqs=7001 [ 336.362003] 12-...: (1 GPs behind) idle=e2f/140000000000000/0 softirq=8014/8017 fqs=7001 [ 336.362003] (detected by 7, t=21006 jiffies, g=4731, c=4730, q=2) [ 336.362003] Task dump for CPU 3: [ 336.362003] rcu_torture_rea R running task 14760 782 2 0x00000008 [ 336.362003] 0000000021ca5292 0000000000000001 00000000cfc06af0 ffff88007c5bfcf0 [ 336.362003] ffffffff813480d7 ffff88007c5bfd20 ffffffff8133944d ffff88007fb6cc00 [ 336.362003] 0000000021cadf3e 0000000000000001 00000000cfc06af0 ffff88007c5bfd30 [ 336.362003] Call Trace: [ 336.362003] [] ? debug_smp_processor_id+0x17/0x20 [ 336.362003] [] ? delay_tsc+0x1d/0xc0 [ 336.362003] [] ? __delay+0xa/0x10 [ 336.362003] [] ? do_raw_spin_lock+0x87/0x150 [ 336.362003] [] ? _raw_spin_lock_irqsave+0x1f/0x30 [ 336.362003] [] ? lock_timer_base.isra.23+0x4f/0x70 [ 336.362003] [] ? mod_timer+0x6a/0x200 [ 336.362003] [] ? preempt_schedule+0x30/0x30 [ 336.362003] [] ? rcu_torture_reader+0x2a7/0x2e0 [ 336.362003] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 336.362003] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 336.362003] [] ? kthread+0xd6/0xf0 [ 336.362003] [] ? kthread_worker_fn+0x180/0x180 [ 336.362003] [] ? ret_from_fork+0x3f/0x70 [ 336.362003] [] ? kthread_worker_fn+0x180/0x180 [ 336.362003] Task dump for CPU 8: [ 336.362003] rcu_torture_rea R running task 14760 789 2 0x00000008 [ 336.362003] ffffffff818af15c ffff88007c0f3ce8 ffff88007cdcbe80 ffff88007c91f080 [ 336.362003] 0000000000000046 0000000000000000 ffff88007c0f4000 0000000000000000 [ 336.362003] 00000047648a43ed 000000000000126f ffffffff820d6eb0 ffff88007c0f3d38 [ 336.362003] Call Trace: [ 336.362003] [] ? __schedule+0x38c/0xb00 [ 336.362003] [] ? preempt_schedule_irq+0x43/0x60 [ 336.362003] [] ? retint_kernel+0x1b/0x1d [ 336.362003] [] ? _cond_resched+0xb/0x20 [ 336.362003] [] ? stutter_wait+0x49/0xc0 [ 336.362003] [] ? rcu_torture_reader+0x11e/0x2e0 [ 336.362003] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 336.362003] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 336.362003] [] ? kthread+0xd6/0xf0 [ 336.362003] [] ? kthread_worker_fn+0x180/0x180 [ 336.362003] [] ? ret_from_fork+0x3f/0x70 [ 336.362003] [] ? kthread_worker_fn+0x180/0x180 [ 336.362003] Task dump for CPU 11: [ 336.362003] torture_onoff R running task 13416 798 2 0x00000008 [ 336.362003] ffffffff8104a8b5 ffff88007ffdb600 ffff88007fb78f70 0000000000000002 [ 336.362003] 0000000000000000 0000000000000000 ffff88007c6f7be8 ffff88007cafcb00 [ 336.362003] ffff88007c6f7b70 ffffffff8104aa3e ffff88007c6f7bc8 ffffffff8104ac95 [ 336.362003] Call Trace: [ 336.362003] [] ? __bad_area_nosemaphore+0x75/0x1f0 [ 336.362003] [] ? bad_area_nosemaphore+0xe/0x10 [ 336.362003] [] ? __do_page_fault+0x85/0x450 [ 336.362003] [] ? do_page_fault+0xc/0x10 [ 336.362003] [] ? page_fault+0x22/0x30 [ 336.362003] [] ? migrate_timer_list+0x32/0xc0 [ 336.362003] [] ? timer_cpu_notify+0xe4/0x160 [ 336.362003] [] ? notifier_call_chain+0x45/0x70 [ 336.362003] [] ? __raw_notifier_call_chain+0x9/0x10 [ 336.362003] [] ? cpu_notify_nofail+0x1e/0x30 [ 336.362003] [] ? _cpu_down+0x212/0x350 [ 336.362003] [] ? __call_rcu.constprop.74+0x380/0x380 [ 336.362003] [] ? call_rcu_bh+0x20/0x20 [ 336.362003] [] ? __rcu_read_unlock+0x50/0x50 [ 336.362003] [] ? __rcu_read_unlock+0x50/0x50 [ 336.362003] [] ? cpu_down+0x2f/0x50 [ 336.362003] [] ? torture_onoff+0x115/0x380 [ 336.362003] [] ? torture_kthread_stopping+0x70/0x70 [ 336.362003] [] ? kthread+0xd6/0xf0 [ 336.362003] [] ? kthread_worker_fn+0x180/0x180 [ 336.362003] [] ? ret_from_fork+0x3f/0x70 [ 336.362003] [] ? kthread_worker_fn+0x180/0x180 [ 336.362003] Task dump for CPU 12: [ 336.362003] rcu_torture_rea R running task 14760 786 2 0x00000008 [ 336.362003] 0000000021c7f59f 0000000000000001 00000000cfc06af0 ffff88007c0dfcf0 [ 336.362003] ffffffff813480d7 ffff88007c0dfd20 ffffffff81339448 ffff88007fa2cc00 [ 336.362003] 0000000021c888b8 0000000000000001 00000000cfc06af0 ffff88007c0dfd30 [ 336.362003] Call Trace: [ 336.362003] [] ? debug_smp_processor_id+0x17/0x20 [ 336.362003] [] ? delay_tsc+0x1d/0xc0 [ 336.362003] [] ? __delay+0xa/0x10 [ 336.362003] [] ? do_raw_spin_lock+0x87/0x150 [ 336.362003] [] ? _raw_spin_lock_irqsave+0x1f/0x30 [ 336.362003] [] ? lock_timer_base.isra.23+0x4f/0x70 [ 336.362003] [] ? mod_timer+0x6a/0x200 [ 336.362003] [] ? preempt_schedule+0x30/0x30 [ 336.362003] [] ? rcu_torture_reader+0x2a7/0x2e0 [ 336.362003] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 336.362003] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 336.362003] [] ? kthread+0xd6/0xf0 [ 336.362003] [] ? kthread_worker_fn+0x180/0x180 [ 336.362003] [] ? ret_from_fork+0x3f/0x70 [ 336.362003] [] ? kthread_worker_fn+0x180/0x180 [ 361.179014] rcu-torture: rtc: ffffffff820d6fd0 ver: 2590 tfle: 0 rta: 2591 rtaf: 0 rtf: 2581 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 1144231 onoff: 128/128:132/133 34,3223:11,552 19099:13437 (HZ=1000) barrier: 0/0:0 cbflood: 608 [ 361.181325] rcu-torture: Reader Pipe: 8730585935 14768 0 0 0 0 0 0 0 0 0 [ 361.182261] rcu-torture: Reader Batch: 8415137892 315462811 0 0 0 0 0 0 0 0 0 [ 361.183234] rcu-torture: Free-Block Circulation: 2590 2589 2588 2587 2586 2585 2584 2583 2582 2581 0 [ 399.367004] INFO: rcu_preempt detected stalls on CPUs/tasks: [ 399.367004] 3-...: (1 GPs behind) idle=6cf/140000000000000/0 softirq=8341/8345 fqs=27770 [ 399.367004] 8-...: (1 GPs behind) idle=503/140000000000001/0 softirq=9290/9294 fqs=27770 [ 399.367004] 11-...: (1 GPs behind) idle=32f/140000000000001/0 softirq=8320/8323 fqs=27770 [ 399.367004] 12-...: (1 GPs behind) idle=e2f/140000000000000/0 softirq=8014/8017 fqs=27771 [ 399.367004] (detected by 14, t=84011 jiffies, g=4731, c=4730, q=2) [ 399.367004] Task dump for CPU 3: [ 399.367004] rcu_torture_rea R running task 14760 782 2 0x00000008 [ 399.367004] 000000008025ff9c 0000000000000001 00000000cfc06af0 ffff88007c5bfcf0 [ 399.367004] ffffffff813480d7 ffff88007c5bfd20 ffffffff813394bf ffff88007fb6cc00 [ 399.367004] 0000000080269050 0000000000000001 00000000cfc06af0 ffff88007c5bfd30 [ 399.367004] Call Trace: [ 399.367004] [] ? debug_smp_processor_id+0x17/0x20 [ 399.367004] [] ? delay_tsc+0x1d/0xc0 [ 399.367004] [] ? __delay+0xa/0x10 [ 399.367004] [] ? do_raw_spin_lock+0x87/0x150 [ 399.367004] [] ? _raw_spin_lock_irqsave+0x1f/0x30 [ 399.367004] [] ? lock_timer_base.isra.23+0x4f/0x70 [ 399.367004] [] ? mod_timer+0x6a/0x200 [ 399.367004] [] ? preempt_schedule+0x30/0x30 [ 399.367004] [] ? rcu_torture_reader+0x2a7/0x2e0 [ 399.367004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 399.367004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 399.367004] [] ? kthread+0xd6/0xf0 [ 399.367004] [] ? kthread_worker_fn+0x180/0x180 [ 399.367004] [] ? ret_from_fork+0x3f/0x70 [ 399.367004] [] ? kthread_worker_fn+0x180/0x180 [ 399.367004] Task dump for CPU 8: [ 399.367004] rcu_torture_rea R running task 14760 789 2 0x00000008 [ 399.367004] ffffffff818af15c ffff88007c0f3ce8 ffff88007cdcbe80 ffff88007c91f080 [ 399.367004] 0000000000000046 0000000000000000 ffff88007c0f4000 0000000000000000 [ 399.367004] 00000047648a43ed 000000000000126f ffffffff820d6eb0 ffff88007c0f3d38 [ 399.367004] Call Trace: [ 399.367004] [] ? __schedule+0x38c/0xb00 [ 399.367004] [] ? preempt_schedule_irq+0x43/0x60 [ 399.367004] [] ? retint_kernel+0x1b/0x1d [ 399.367004] [] ? _cond_resched+0xb/0x20 [ 399.367004] [] ? stutter_wait+0x49/0xc0 [ 399.367004] [] ? rcu_torture_reader+0x11e/0x2e0 [ 399.367004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 399.367004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 399.367004] [] ? kthread+0xd6/0xf0 [ 399.367004] [] ? kthread_worker_fn+0x180/0x180 [ 399.367004] [] ? ret_from_fork+0x3f/0x70 [ 399.367004] [] ? kthread_worker_fn+0x180/0x180 [ 399.367004] Task dump for CPU 11: [ 399.367004] torture_onoff R running task 13416 798 2 0x00000008 [ 399.367004] ffffffff8104a8b5 ffff88007ffdb600 ffff88007fb78f70 0000000000000002 [ 399.367004] 0000000000000000 0000000000000000 ffff88007c6f7be8 ffff88007cafcb00 [ 399.367004] ffff88007c6f7b70 ffffffff8104aa3e ffff88007c6f7bc8 ffffffff8104ac95 [ 399.367004] Call Trace: [ 399.367004] [] ? __bad_area_nosemaphore+0x75/0x1f0 [ 399.367004] [] ? bad_area_nosemaphore+0xe/0x10 [ 399.367004] [] ? __do_page_fault+0x85/0x450 [ 399.367004] [] ? do_page_fault+0xc/0x10 [ 399.367004] [] ? page_fault+0x22/0x30 [ 399.367004] [] ? migrate_timer_list+0x32/0xc0 [ 399.367004] [] ? timer_cpu_notify+0xe4/0x160 [ 399.367004] [] ? notifier_call_chain+0x45/0x70 [ 399.367004] [] ? __raw_notifier_call_chain+0x9/0x10 [ 399.367004] [] ? cpu_notify_nofail+0x1e/0x30 [ 399.367004] [] ? _cpu_down+0x212/0x350 [ 399.367004] [] ? __call_rcu.constprop.74+0x380/0x380 [ 399.367004] [] ? call_rcu_bh+0x20/0x20 [ 399.367004] [] ? __rcu_read_unlock+0x50/0x50 [ 399.367004] [] ? __rcu_read_unlock+0x50/0x50 [ 399.367004] [] ? cpu_down+0x2f/0x50 [ 399.367004] [] ? torture_onoff+0x115/0x380 [ 399.367004] [] ? torture_kthread_stopping+0x70/0x70 [ 399.367004] [] ? kthread+0xd6/0xf0 [ 399.367004] [] ? kthread_worker_fn+0x180/0x180 [ 399.367004] [] ? ret_from_fork+0x3f/0x70 [ 399.367004] [] ? kthread_worker_fn+0x180/0x180 [ 399.367004] Task dump for CPU 12: [ 399.367004] rcu_torture_rea R running task 14760 786 2 0x00000008 [ 399.367004] 0000000081556309 0000000000000001 00000000cfc06af0 ffff88007c0dfcf0 [ 399.367004] ffffffff813480d7 ffff88007c0dfd20 ffffffff81339448 ffff88007fa2cc00 [ 399.367004] 000000008155f790 0000000000000001 00000000cfc06af0 ffff88007c0dfd30 [ 399.367004] Call Trace: [ 399.367004] [] ? debug_smp_processor_id+0x17/0x20 [ 399.367004] [] ? delay_tsc+0x8f/0xc0 [ 399.367004] [] ? __delay+0xa/0x10 [ 399.367004] [] ? do_raw_spin_lock+0x87/0x150 [ 399.367004] [] ? _raw_spin_lock_irqsave+0x1f/0x30 [ 399.367004] [] ? lock_timer_base.isra.23+0x4f/0x70 [ 399.367004] [] ? mod_timer+0x6a/0x200 [ 399.367004] [] ? preempt_schedule+0x30/0x30 [ 399.367004] [] ? rcu_torture_reader+0x2a7/0x2e0 [ 399.367004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 399.367004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 399.367004] [] ? kthread+0xd6/0xf0 [ 399.367004] [] ? kthread_worker_fn+0x180/0x180 [ 399.367004] [] ? ret_from_fork+0x3f/0x70 [ 399.367004] [] ? kthread_worker_fn+0x180/0x180 [ 421.184014] rcu-torture: rtc: ffffffff820d6fd0 ver: 2590 tfle: 0 rta: 2591 rtaf: 0 rtf: 2581 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 1265617 onoff: 128/128:132/133 34,3223:11,552 19099:13437 (HZ=1000) barrier: 0/0:0 cbflood: 608 [ 421.186171] rcu-torture: Reader Pipe: 9599676445 14768 0 0 0 0 0 0 0 0 0 [ 421.187032] rcu-torture: Reader Batch: 9284228402 315462811 0 0 0 0 0 0 0 0 0 [ 421.187925] rcu-torture: Free-Block Circulation: 2590 2589 2588 2587 2586 2585 2584 2583 2582 2581 0 [ 421.189059] ??? Writer stall state RTWS_EXP_SYNC(4) g4731 c4730 f0x0 [ 421.189684] rcu_preempt: wait state: 3 ->state: 0x1 [ 421.190180] rcu_sched: wait state: 1 ->state: 0x1 [ 421.190646] rcu_bh: wait state: 1 ->state: 0x1 [ 421.191099] Dumping ftrace buffer: [ 421.191446] (ftrace buffer empty) [ 316.386056] BUG: spinlock lockup suspected on CPU#12, rcu_torture_rea/786 [ 316.386056] lock: 0xffff88007fa2cc00, .magic: dead4ead, .owner: torture_onoff/798, .owner_cpu: 11 [ 316.386056] CPU: 12 PID: 786 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.386056] ffff88007fa2cc00 ffff88007c0dfd10 ffffffff8132cd6c ffff88007cafcb00 [ 316.386056] ffff88007c0dfd30 ffffffff81092fb3 ffff88007fa2cc00 00000000cfc06af0 [ 316.386056] ffff88007c0dfd60 ffffffff810930db 0000000000000286 ffff88007fa2cc00 [ 316.386056] Call Trace: [ 316.386056] [] dump_stack+0x4e/0x82 [ 316.386056] [] spin_dump+0x73/0xc0 [ 316.386056] [] do_raw_spin_lock+0x9b/0x150 [ 316.386056] [] _raw_spin_lock_irqsave+0x1f/0x30 [ 316.386056] [] lock_timer_base.isra.23+0x4f/0x70 [ 316.386056] [] mod_timer+0x6a/0x200 [ 316.386056] [] ? preempt_schedule+0x30/0x30 [ 316.386056] [] rcu_torture_reader+0x2a7/0x2e0 [ 316.386056] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 316.386056] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 316.386056] [] kthread+0xd6/0xf0 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] [] ret_from_fork+0x3f/0x70 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] Sending NMI to all CPUs: [ 316.386056] NMI backtrace for cpu 0 [ 316.386056] CPU: 0 PID: 781 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.386056] task: ffff88007c918c80 ti: ffff88007c5b8000 task.ti: ffff88007c5b8000 [ 316.386056] RIP: 0010:[] [] delay_tsc+0x33/0xc0 [ 316.386056] RSP: 0018:ffff88007c5bbdb0 EFLAGS: 00000286 [ 316.386056] RAX: 0000000080000000 RBX: 0000016f89221cb2 RCX: 0000000000000001 [ 316.386056] RDX: 0000000080000001 RSI: ffffffff81ca0d44 RDI: 00000000ffffffff [ 316.386056] RBP: ffff88007c5bbdd0 R08: ffff88007c5b8000 R09: ffff88007fa0cc00 [ 316.386056] R10: ffff88007c5bbe30 R11: 0000000000000001 R12: 0000016f88f5821e [ 316.386056] R13: 000000000034e556 R14: 0000000000000000 R15: ffffffff820d6fd0 [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000 [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.386056] CR2: 000056506239dcc8 CR3: 000000007b0ee000 CR4: 00000000000006f0 [ 316.386056] Stack: [ 316.386056] 000000000000000a ffff88007c5bbe20 00000069b5d0f6e7 000000000000127b [ 316.386056] ffff88007c5bbde0 ffffffff81339337 ffff88007c5bbe00 ffffffff810add86 [ 316.386056] 0000000000000000 0000000000000000 ffff88007c5bbea8 ffffffff810ad458 [ 316.386056] Call Trace: [ 316.386056] [] __const_udelay+0x27/0x30 [ 316.386056] [] rcu_read_delay+0x36/0xb0 [ 316.386056] [] rcu_torture_reader+0x1a8/0x2e0 [ 316.386056] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 316.386056] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 316.386056] [] kthread+0xd6/0xf0 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] [] ret_from_fork+0x3f/0x70 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] Code: 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 01 00 00 00 e8 43 ec d3 ff e8 4e ec 00 00 44 39 f0 75 36 0f [ 316.386056] NMI backtrace for cpu 2 [ 316.386056] CPU: 2 PID: 794 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.386056] task: ffff88007cafd780 ti: ffff88007c744000 task.ti: ffff88007c744000 [ 316.386056] RIP: 0010:[] [] delay_tsc+0x33/0xc0 [ 316.386056] RSP: 0018:ffff88007c747db0 EFLAGS: 00000286 [ 316.386056] RAX: 0000000080000000 RBX: 0000016f8922659a RCX: 0000000000000001 [ 316.386056] RDX: 0000000080000001 RSI: ffffffff81ca0d44 RDI: 00000000ffffffff [ 316.386056] RBP: ffff88007c747dd0 R08: ffff88007c744000 R09: ffff88007fa4cc00 [ 316.386056] R10: ffff88007c747e30 R11: 000000000000003c R12: 0000016f890566fe [ 316.386056] R13: 0000000000351c70 R14: 0000000000000002 R15: ffffffff820d6fd0 [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fa40000(0000) knlGS:0000000000000000 [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.386056] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 316.386056] Stack: [ 316.386056] 0000000000000010 ffff88007c747e20 00000069b889daa7 000000000000127b [ 316.386056] ffff88007c747de0 ffffffff81339337 ffff88007c747e00 ffffffff810add86 [ 316.386056] 0000000000000000 0000000000000000 ffff88007c747ea8 ffffffff810ad458 [ 316.386056] Call Trace: [ 316.386056] [] __const_udelay+0x27/0x30 [ 316.386056] [] rcu_read_delay+0x36/0xb0 [ 316.386056] [] rcu_torture_reader+0x1a8/0x2e0 [ 316.386056] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 316.386056] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 316.386056] [] kthread+0xd6/0xf0 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] [] ret_from_fork+0x3f/0x70 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] Code: 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 01 00 00 00 e8 43 ec d3 ff e8 4e ec 00 00 44 39 f0 75 36 0f [ 316.386056] NMI backtrace for cpu 3 [ 316.386056] CPU: 3 PID: 782 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.386056] task: ffff88007c919900 ti: ffff88007c5bc000 task.ti: ffff88007c5bc000 [ 316.386056] RIP: 0010:[] [] check_preemption_disabled+0x29/0xe0 [ 316.386056] RSP: 0018:ffff88007c5bfce0 EFLAGS: 00000002 [ 316.386056] RAX: 0000000000000003 RBX: ffff88007fb6cc00 RCX: 0000000000000002 [ 316.386056] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7 [ 316.386056] RBP: ffff88007c5bfce0 R08: ffffffff81a0a240 R09: ffff88007fb6cc00 [ 316.386056] R10: ffff88007c5bfe30 R11: 0000000000000400 R12: 00000000cb524812 [ 316.386056] R13: 0000000000000001 R14: 00000000cfc06af0 R15: ffff88007c5bfdd0 [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fa60000(0000) knlGS:0000000000000000 [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.386056] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 316.386056] Stack: [ 316.386056] ffff88007c5bfcf0 ffffffff813480d7 ffff88007c5bfd20 ffffffff8133944d [ 316.386056] ffff88007fb6cc00 00000000cb524812 0000000000000001 00000000cfc06af0 [ 316.386056] ffff88007c5bfd30 ffffffff8133930a ffff88007c5bfd60 ffffffff810930c7 [ 316.386056] Call Trace: [ 316.386056] [] debug_smp_processor_id+0x17/0x20 [ 316.386056] [] delay_tsc+0x1d/0xc0 [ 316.386056] [] __delay+0xa/0x10 [ 316.386056] [] do_raw_spin_lock+0x87/0x150 [ 316.386056] [] _raw_spin_lock_irqsave+0x1f/0x30 [ 316.386056] [] lock_timer_base.isra.23+0x4f/0x70 [ 316.386056] [] mod_timer+0x6a/0x200 [ 316.386056] [] ? preempt_schedule+0x30/0x30 [ 316.386056] [] rcu_torture_reader+0x2a7/0x2e0 [ 316.386056] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 316.386056] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 316.386056] [] kthread+0xd6/0xf0 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] [] ret_from_fork+0x3f/0x70 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] Code: 00 00 55 65 8b 05 a8 2d cc 7e 48 89 e5 41 56 41 55 41 54 53 65 8b 1d 27 21 cc 7e a9 ff ff ff 7f 74 0b 89 d8 5b 41 5c 41 5d 41 5e <5d> c3 9c 58 f6 c4 02 74 ee 89 d8 83 e0 3f 48 8d 14 c5 08 92 a0 [ 316.386056] NMI backtrace for cpu 5 [ 316.386056] CPU: 5 PID: 775 Comm: rcu_torture_wri Tainted: G D 4.5.0-rc1+ #14 [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.386056] task: ffff88007c758000 ti: ffff88007c98c000 task.ti: ffff88007c98c000 [ 316.386056] RIP: 0010:[] [] smp_call_function_single+0x106/0x140 [ 316.386056] RSP: 0018:ffff88007c98fd50 EFLAGS: 00000202 [ 316.386056] RAX: 0000000000000001 RBX: 0000000000000009 RCX: 0000000000000000 [ 316.386056] RDX: 0000000000000000 RSI: ffff88007fab6440 RDI: ffffffff81cbdfe7 [ 316.386056] RBP: ffff88007c98fd90 R08: ffffffff81a0a320 R09: 0000000000000002 [ 316.386056] R10: 0000000000000009 R11: 0000000000000c00 R12: ffffffff810af980 [ 316.386056] R13: ffffffff81e47ac0 R14: 0000000000016440 R15: ffffffff81e48e00 [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007faa0000(0000) knlGS:0000000000000000 [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.386056] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 316.386056] Stack: [ 316.386056] 0000000000000000 0000000000000000 0000000000000000 0000000000000003 [ 316.386056] 000000000000cbb0 0000000000000002 0000000000000000 ffffffff81e47ac0 [ 316.386056] ffff88007c98fde8 ffffffff810aedbe ffffffff810af980 0000000000000009 [ 316.386056] Call Trace: [ 316.386056] [] sync_rcu_exp_select_cpus+0x1be/0x3d0 [ 316.386056] [] ? rcu_seq_end.part.52+0x30/0x30 [ 316.386056] [] synchronize_rcu_expedited.part.65+0x5f/0xb0 [ 316.386056] [] synchronize_rcu_expedited+0x16/0x40 [ 316.386056] [] ? debug_smp_processor_id+0x17/0x20 [ 316.386056] [] ? delay_tsc+0x8f/0xc0 [ 316.386056] [] ? __udelay+0x26/0x30 [ 316.386056] [] rcu_torture_writer+0x441/0x6b0 [ 316.386056] [] ? rcu_torture_fakewriter+0x160/0x160 [ 316.386056] [] kthread+0xd6/0xf0 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] [] ret_from_fork+0x3f/0x70 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] Code: 5e e4 00 01 eb 86 e8 1a ab 27 00 89 c0 49 c7 c6 40 64 01 00 4c 89 f6 48 03 34 c5 20 f5 f2 81 8b 46 18 a8 01 74 09 f3 90 8b 46 18 01 75 f7 83 4e 18 01 89 df 4c 89 e9 4c 89 e2 e8 e5 fd ff ff [ 316.386056] NMI backtrace for cpu 7 [ 316.386056] CPU: 7 PID: 787 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.386056] task: ffff88007c91d780 ti: ffff88007c750000 task.ti: ffff88007c750000 [ 316.386056] RIP: 0010:[] [] rcu_torture_reader+0xc7/0x2e0 [ 316.386056] RSP: 0018:ffff88007c753e10 EFLAGS: 00000206 [ 316.386056] RAX: ffffffff81e47800 RBX: ffffffffffffffff RCX: 00000000000493e0 [ 316.386056] RDX: 0000000000000000 RSI: ffffffff81d29759 RDI: ffffffff81d29759 [ 316.386056] RBP: ffff88007c753ea8 R08: ffff88007c750000 R09: ffff88007faecc00 [ 316.386056] R10: ffff88007c753e30 R11: 0000000000000001 R12: 0000000000000000 [ 316.386056] R13: 00000069ba9b6ec1 R14: 000000000000127b R15: ffffffff820d6fd0 [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000 [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.386056] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 316.386056] Stack: [ 316.386056] 0000000000000000 0000000081a0a240 33f80be8f7164cb6 00000000000003e0 [ 316.386056] 0000000000000000 ffff88007faed1b8 00000001000258ae ffffffff810ad590 [ 316.386056] 0000000000000000 ffffffff00000007 00000000ffffffff 0000000000000000 [ 316.386056] Call Trace: [ 316.386056] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 316.386056] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 316.386056] [] kthread+0xd6/0xf0 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] [] ret_from_fork+0x3f/0x70 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] Code: 8f 32 01 00 00 48 c7 c7 59 97 d2 81 4c 29 f3 e8 80 ad 29 00 48 8b 05 69 8a 02 01 48 c7 c7 59 97 d2 81 65 4a ff 04 e5 40 cb 00 00 <48> 83 78 30 01 48 83 db ff e8 5b ad 29 00 48 83 fb 0a b8 0a 00 [ 316.386056] NMI backtrace for cpu 8 [ 316.386056] CPU: 8 PID: 789 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.386056] task: ffff88007c91f080 ti: ffff88007c0f0000 task.ti: ffff88007c0f0000 [ 316.386056] RIP: 0010:[] [] delay_tsc+0x25/0xc0 [ 316.386056] RSP: 0018:ffff88007fb03d78 EFLAGS: 00000006 [ 316.386056] RAX: 000000008923865a RBX: ffff88007fb6cc00 RCX: 0000000000000103 [ 316.386056] RDX: 000000000000016f RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7 [ 316.386056] RBP: ffff88007fb03d98 R08: 0000000000000000 R09: 000000000000f9ad [ 316.386056] R10: 000000003d550944 R11: 0000000002faf04c R12: 00000000c6d627e6 [ 316.386056] R13: 0000000000000001 R14: 0000000000000008 R15: 0000000000000000 [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fb00000(0000) knlGS:0000000000000000 [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.386056] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 316.386056] Stack: [ 316.386056] ffff88007fb6cc00 00000000c6d627e6 0000000000000001 00000000cfc06af0 [ 316.386056] ffff88007fb03da8 ffffffff8133930a ffff88007fb03dd8 ffffffff810930c7 [ 316.386056] ffff88007fb6cc00 ffffffff820d8c80 ffff88007fb6cc00 0000000000000000 [ 316.386056] Call Trace: [ 316.386056] d [] __delay+0xa/0x10 [ 316.386056] [] do_raw_spin_lock+0x87/0x150 [ 316.386056] [] _raw_spin_lock+0x1a/0x20 [ 316.386056] [] add_timer_on+0x76/0x150 [ 316.386056] [] clocksource_watchdog+0x217/0x2f0 [ 316.386056] [] ? clocksource_unregister+0x50/0x50 [ 316.386056] [] call_timer_fn+0x30/0x120 [ 316.386056] [] ? clocksource_unregister+0x50/0x50 [ 316.386056] [] run_timer_softirq+0x20b/0x2b0 [ 316.386056] [] __do_softirq+0xd3/0x280 [ 316.386056] [] irq_exit+0x42/0x50 [ 316.386056] [] smp_apic_timer_interrupt+0x3d/0x50 [ 316.386056] [] apic_timer_interrupt+0x7f/0x90 [ 316.386056] d [] ? _cond_resched+0xb/0x20 [ 316.386056] [] ? stutter_wait+0x49/0xc0 [ 316.386056] [] rcu_torture_reader+0x11e/0x2e0 [ 316.386056] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 316.386056] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 316.386056] [] kthread+0xd6/0xf0 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] [] ret_from_fork+0x3f/0x70 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] Code: 5e 41 5f 5d c3 90 55 48 89 e5 41 56 41 55 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 <48> c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00 e8 43 [ 316.386056] NMI backtrace for cpu 11 [ 316.386056] CPU: 11 PID: 798 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14 [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.386056] task: ffff88007cafcb00 ti: ffff88007c6f4000 task.ti: ffff88007c6f4000 [ 316.386056] RIP: 0010:[] [] preempt_count_add+0xe/0xc0 [ 316.386056] RSP: 0018:ffff88007fb63e30 EFLAGS: 00000086 [ 316.386056] RAX: 0000000000000001 RBX: ffff88007fb6cc00 RCX: 0000000000000103 [ 316.386056] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: 0000000000000001 [ 316.386056] RBP: ffff88007fb63e60 R08: ffff88007fb6e140 R09: 0000000000000010 [ 316.386056] R10: 0000000000000226 R11: 000000000000001f R12: 00000000cf0bff9b [ 316.386056] R13: 0000000000000001 R14: 00000000cfc06af0 R15: 0000000000000000 [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000 [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.386056] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 316.386056] Stack: [ 316.386056] ffff88007fb63e60 ffffffff81339448 ffff88007fb6cc00 00000000cf0bff9b [ 316.386056] 0000000000000001 00000000cfc06af0 ffff88007fb63e70 ffffffff8133930a [ 316.386056] ffff88007fb63ea0 ffffffff810930c7 ffff88007fb6cc00 ffffffff81e080c8 [ 316.386056] Call Trace: [ 316.386056] d [] ? delay_tsc+0x18/0xc0 [ 316.386056] [] __delay+0xa/0x10 [ 316.386056] [] do_raw_spin_lock+0x87/0x150 [ 316.386056] [] _raw_spin_lock_irq+0x1b/0x20 [ 316.386056] [] run_timer_softirq+0x40/0x2b0 [ 316.386056] [] ? clockevents_program_event+0x7d/0x120 [ 316.386056] [] __do_softirq+0xd3/0x280 [ 316.386056] [] irq_exit+0x42/0x50 [ 316.386056] [] smp_apic_timer_interrupt+0x3d/0x50 [ 316.386056] [] apic_timer_interrupt+0x7f/0x90 [ 316.386056] d [] ? _raw_spin_unlock_irq+0xf/0x30 [ 316.386056] [] ? _raw_spin_unlock_irq+0x9/0x30 [ 316.386056] [] acct_collect+0x166/0x1a0 [ 316.386056] [] do_exit+0x4f9/0xc00 [ 316.386056] [] oops_end+0x84/0xb0 [ 316.386056] [] no_context+0x102/0x330 [ 316.386056] [] ? __mod_zone_page_state+0x6f/0xa0 [ 316.386056] [] __bad_area_nosemaphore+0x75/0x1f0 [ 316.386056] [] bad_area_nosemaphore+0xe/0x10 [ 316.386056] [] __do_page_fault+0x85/0x450 [ 316.386056] [] do_page_fault+0xc/0x10 [ 316.386056] [] page_fault+0x22/0x30 [ 316.386056] [] ? migrate_timer_list+0x32/0xc0 [ 316.386056] [] timer_cpu_notify+0xe4/0x160 [ 316.386056] [] notifier_call_chain+0x45/0x70 [ 316.386056] [] __raw_notifier_call_chain+0x9/0x10 [ 316.386056] [] cpu_notify_nofail+0x1e/0x30 [ 316.386056] [] _cpu_down+0x212/0x350 [ 316.386056] [] ? __call_rcu.constprop.74+0x380/0x380 [ 316.386056] [] ? call_rcu_bh+0x20/0x20 [ 316.386056] [] ? __rcu_read_unlock+0x50/0x50 [ 316.386056] [] ? __rcu_read_unlock+0x50/0x50 [ 316.386056] [] cpu_down+0x2f/0x50 [ 316.386056] [] torture_onoff+0x115/0x380 [ 316.386056] [] ? torture_kthread_stopping+0x70/0x70 [ 316.386056] [] kthread+0xd6/0xf0 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] [] ret_from_fork+0x3f/0x70 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] Code: c7 c7 fb dd c9 81 e8 72 f1 fd ff c6 05 a0 b3 e9 00 01 eb 9a 66 0f 1f 84 00 00 00 00 00 8b 15 02 a7 01 01 55 65 01 3d d2 2c f9 7e <48> 89 e5 53 89 fb 85 d2 75 11 65 8b 05 c1 2c f9 7e 0f b6 c0 3d [ 316.386056] NMI backtrace for cpu 12 [ 316.386056] CPU: 12 PID: 786 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.386056] task: ffff88007c91cb00 ti: ffff88007c0dc000 task.ti: ffff88007c0dc000 [ 316.386056] RIP: 0010:[] [] default_send_IPI_mask_sequence_phys+0x9d/0xd0 [ 316.386056] RSP: 0018:ffff88007c0dfc90 EFLAGS: 00000046 [ 316.386056] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 000000000000000c [ 316.386056] RDX: 000000000000000c RSI: 0000000000000010 RDI: 0000000000000300 [ 316.386056] RBP: ffff88007c0dfcc8 R08: 0000000000000000 R09: 000000000000f9ad [ 316.386056] R10: ffff88007c0dff58 R11: 00000000000005d1 R12: ffffffff81f31740 [ 316.386056] R13: 0000000000000400 R14: 0000000000000002 R15: 000000000000000c [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000 [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.386056] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 316.386056] Stack: [ 316.386056] 0000000000000086 0000000c7c0dfca0 000000000000ff40 0000000000000001 [ 316.386056] ffffffff8103fd20 00000000cfc06af0 ffff88007c0dfdd0 ffff88007c0dfcd8 [ 316.386056] ffffffff8103fd36 ffff88007c0dfd20 ffffffff81331299 ffffffff81008b50 [ 316.386056] Call Trace: [ 316.386056] [] ? irq_force_complete_move+0x20/0x20 [ 316.386056] [] nmi_raise_cpu_backtrace+0x16/0x20 [ 316.386056] [] nmi_trigger_all_cpu_backtrace+0x259/0x270 [ 316.386056] [] ? show_stack+0x20/0x50 [ 316.386056] [] arch_trigger_all_cpu_backtrace+0x14/0x20 [ 316.386056] [] do_raw_spin_lock+0xa5/0x150 [ 316.386056] [] _raw_spin_lock_irqsave+0x1f/0x30 [ 316.386056] [] lock_timer_base.isra.23+0x4f/0x70 [ 316.386056] [] mod_timer+0x6a/0x200 [ 316.386056] [] ? preempt_schedule+0x30/0x30 [ 316.386056] [] rcu_torture_reader+0x2a7/0x2e0 [ 316.386056] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 316.386056] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 316.386056] [] kthread+0xd6/0xf0 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] [] ret_from_fork+0x3f/0x70 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4 [ 316.386056] NMI backtrace for cpu 13 [ 316.386056] CPU: 13 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.386056] task: ffff88007c918000 ti: ffff88007c0f4000 task.ti: ffff88007c0f4000 [ 316.386056] RIP: 0010:[] [] rcu_read_delay+0x5c/0xb0 [ 316.386056] RSP: 0018:ffff88007c0f7df0 EFLAGS: 00000202 [ 316.386056] RAX: 000000000008efd6 RBX: 0000000000000000 RCX: 0000000000001770 [ 316.386056] RDX: 000000000000032c RSI: ffff88007fbb27d8 RDI: ffff88007c0f7e20 [ 316.386056] RBP: ffff88007c0f7e00 R08: ffff88007c0f4000 R09: ffff88007fbacc00 [ 316.386056] R10: ffff88007c0f7e30 R11: 0000000000000001 R12: ffff88007c0f7e20 [ 316.386056] R13: 00000069ba9c967b R14: 000000000000127b R15: ffffffff820d6fd0 [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fba0000(0000) knlGS:0000000000000000 [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.386056] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 316.386056] Stack: [ 316.386056] 0000000000000000 0000000000000000 ffff88007c0f7ea8 ffffffff810ad458 [ 316.386056] 0000000000000000 0000000081a0a240 8723d0f72accd175 0000000000000c44 [ 316.386056] 0000000000000000 ffff88007fbad1b8 00000001000258ae ffffffff810ad590 [ 316.386056] Call Trace: [ 316.386056] [] rcu_torture_reader+0x1a8/0x2e0 [ 316.386056] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 316.386056] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 316.386056] [] kthread+0xd6/0xf0 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] [] ret_from_fork+0x3f/0x70 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] Code: e8 8a b5 28 00 48 83 eb 01 75 f0 4c 89 e7 e8 6c 83 07 00 48 63 15 d9 94 02 01 48 8d 14 92 48 8d 0c 92 31 d2 48 c1 e1 04 48 f7 f1 <48> 85 d2 74 3c 65 8b 05 d8 cf f5 7e a9 ff ff ff 7f 74 05 5b 41 [ 316.386056] NMI backtrace for cpu 14 [ 316.386056] CPU: 14 PID: 783 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.386056] task: ffff88007c91a580 ti: ffff88007cb28000 task.ti: ffff88007cb28000 [ 316.386056] RIP: 0010:[] [] delay_tsc+0x33/0xc0 [ 316.386056] RSP: 0018:ffff88007cb2bdb0 EFLAGS: 00000286 [ 316.386056] RAX: 0000000080000000 RBX: 0000016f89278228 RCX: 0000000000000001 [ 316.386056] RDX: 0000000080000001 RSI: ffffffff81ca0d44 RDI: 00000000ffffffff [ 316.386056] RBP: ffff88007cb2bdd0 R08: ffff88007cb28000 R09: ffff88007fbccc00 [ 316.386056] R10: ffff88007cb2be30 R11: 0000000000000001 R12: 0000016f88f62d58 [ 316.386056] R13: 0000000000352ddb R14: 000000000000000e R15: ffffffff820d6fd0 [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fbc0000(0000) knlGS:0000000000000000 [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.386056] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 316.386056] Stack: [ 316.386056] 0000000000000005 ffff88007cb2be20 00000069b54181d9 000000000000127b [ 316.386056] ffff88007cb2bde0 ffffffff81339337 ffff88007cb2be00 ffffffff810add86 [ 316.386056] 0000000000000000 0000000000000000 ffff88007cb2bea8 ffffffff810ad458 [ 316.386056] Call Trace: [ 316.386056] [] __const_udelay+0x27/0x30 [ 316.386056] [] rcu_read_delay+0x36/0xb0 [ 316.386056] [] rcu_torture_reader+0x1a8/0x2e0 [ 316.386056] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 316.386056] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 316.386056] [] kthread+0xd6/0xf0 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] [] ret_from_fork+0x3f/0x70 [ 316.386056] [] ? kthread_worker_fn+0x180/0x180 [ 316.386056] Code: 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 48 c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 01 00 00 00 e8 43 ec d3 ff e8 4e ec 00 00 44 39 f0 75 36 0f [ 316.386056] NMI backtrace for cpu 15 [ 316.386056] CPU: 15 PID: 0 Comm: swapper/15 Tainted: G D 4.5.0-rc1+ #14 [ 316.386056] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.386056] task: ffff88007cc9cb00 ti: ffff88007ccb8000 task.ti: ffff88007ccb8000 [ 316.386056] RIP: 0010:[] [] default_idle+0x13/0xd0 [ 316.386056] RSP: 0018:ffff88007ccbbec0 EFLAGS: 00000202 [ 316.386056] RAX: 000000000000000f RBX: ffff88007ccbc000 RCX: 0000000000000000 [ 316.386056] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7 [ 316.386056] RBP: ffff88007ccbbed0 R08: 0000000000000000 R09: 0000000000000000 [ 316.386056] R10: 0000000000000010 R11: 0000000000018f70 R12: 0000000000000000 [ 316.386056] R13: 0000000000000000 R14: ffff88007ccb8000 R15: ffff88007ccb8000 [ 316.386056] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000 [ 316.386056] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.386056] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 316.386056] Stack: [ 316.386056] ffff88007ccbc000 0000000000000000 ffff88007ccbbee0 ffffffff8100fafa [ 316.386056] ffff88007ccbbef0 ffffffff8108fd65 ffff88007ccbbf30 ffffffff8108fff7 [ 316.386056] ffff88007ccbc000 000000000000000f 0000000000000000 0000000000000000 [ 316.386056] Call Trace: [ 316.386056] [] arch_cpu_idle+0xa/0x10 [ 316.386056] [] default_idle_call+0x25/0x30 [ 316.386056] [] cpu_startup_entry+0x287/0x2e0 [ 316.386056] [] start_secondary+0xf9/0x100 [ 316.386056] Code: 0f 1f 84 00 00 00 00 00 55 89 ff 48 89 e5 f0 48 0f ab 3e 5d c3 0f 1f 00 55 48 89 e5 41 54 53 e8 c4 8d 33 00 66 66 66 66 90 fb f4 b8 8d 33 00 41 89 c4 66 66 66 66 90 5b 41 5c 5d c3 41 89 c4 [ 331.295005] BUG: spinlock lockup suspected on CPU#11, torture_onoff/798 [ 331.295005] lock: 0xffff88007fb6cc00, .magic: dead4ead, .owner: torture_onoff/798, .owner_cpu: 11 [ 331.295005] CPU: 11 PID: 798 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14 [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 331.295005] ffff88007fb6cc00 ffff88007fb63e50 ffffffff8132cd6c ffff88007cafcb00 [ 331.295005] ffff88007fb63e70 ffffffff81092fb3 ffff88007fb6cc00 00000000cfc06af0 [ 331.295005] ffff88007fb63ea0 ffffffff810930db ffff88007fb6cc00 ffffffff81e080c8 [ 331.295005] Call Trace: [ 331.295005] [] dump_stack+0x4e/0x82 [ 331.295005] [] spin_dump+0x73/0xc0 [ 331.295005] [] do_raw_spin_lock+0x9b/0x150 [ 331.295005] [] _raw_spin_lock_irq+0x1b/0x20 [ 331.295005] [] run_timer_softirq+0x40/0x2b0 [ 331.295005] [] ? clockevents_program_event+0x7d/0x120 [ 331.295005] [] __do_softirq+0xd3/0x280 [ 331.295005] [] irq_exit+0x42/0x50 [ 331.295005] [] smp_apic_timer_interrupt+0x3d/0x50 [ 331.295005] [] apic_timer_interrupt+0x7f/0x90 [ 331.295005] [] ? _raw_spin_unlock_irq+0xf/0x30 [ 331.295005] [] ? _raw_spin_unlock_irq+0x9/0x30 [ 331.295005] [] acct_collect+0x166/0x1a0 [ 331.295005] [] do_exit+0x4f9/0xc00 [ 331.295005] [] oops_end+0x84/0xb0 [ 331.295005] [] no_context+0x102/0x330 [ 331.295005] [] ? __mod_zone_page_state+0x6f/0xa0 [ 331.295005] [] __bad_area_nosemaphore+0x75/0x1f0 [ 331.295005] [] bad_area_nosemaphore+0xe/0x10 [ 331.295005] [] __do_page_fault+0x85/0x450 [ 331.295005] [] do_page_fault+0xc/0x10 [ 331.295005] [] page_fault+0x22/0x30 [ 331.295005] [] ? migrate_timer_list+0x32/0xc0 [ 331.295005] [] timer_cpu_notify+0xe4/0x160 [ 331.295005] [] notifier_call_chain+0x45/0x70 [ 331.295005] [] __raw_notifier_call_chain+0x9/0x10 [ 331.295005] [] cpu_notify_nofail+0x1e/0x30 [ 331.295005] [] _cpu_down+0x212/0x350 [ 331.295005] [] ? __call_rcu.constprop.74+0x380/0x380 [ 331.295005] [] ? call_rcu_bh+0x20/0x20 [ 331.295005] [] ? __rcu_read_unlock+0x50/0x50 [ 331.295005] [] ? __rcu_read_unlock+0x50/0x50 [ 331.295005] [] cpu_down+0x2f/0x50 [ 331.295005] [] torture_onoff+0x115/0x380 [ 331.295005] [] ? torture_kthread_stopping+0x70/0x70 [ 331.295005] [] kthread+0xd6/0xf0 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] [] ret_from_fork+0x3f/0x70 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] Sending NMI to all CPUs: [ 331.295005] NMI backtrace for cpu 0 [ 331.295005] CPU: 0 PID: 784 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 331.295005] task: ffff88007c91b200 ti: ffff88007cb2c000 task.ti: ffff88007cb2c000 [ 331.295005] RIP: 0010:[] [] preempt_count_sub+0x15/0xa0 [ 331.295005] RSP: 0018:ffff88007cb2fe00 EFLAGS: 00000246 [ 331.295005] RAX: 000000000000000a RBX: 0000000000000000 RCX: 0000000000000000 [ 331.295005] RDX: 0000000080000001 RSI: ffffffff81d29759 RDI: 0000000000000001 [ 331.295005] RBP: ffff88007cb2fe00 R08: ffff88007cb2c000 R09: ffff88007fa0cc00 [ 331.295005] R10: ffff88007cb2fe30 R11: 0000000000000001 R12: 0000000000000000 [ 331.295005] R13: 00000069dd5e61b2 R14: 000000000000127b R15: ffffffff820d6fd0 [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000 [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 331.295005] CR2: 000056506239dcc8 CR3: 000000007b0ee000 CR4: 00000000000006f0 [ 331.295005] Stack: [ 331.295005] ffff88007cb2fea8 ffffffff810ad3a5 0000000000000000 0000000081a0a240 [ 331.295005] 3c3b1143cab6927b 0000000000001d6d 0000000000000000 ffff88007fa0d3f8 [ 331.295005] 0000000100025af6 ffffffff810ad590 0000000000000000 ffffffff00000000 [ 331.295005] Call Trace: [ 331.295005] [] rcu_torture_reader+0xf5/0x2e0 [ 331.295005] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 331.295005] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 331.295005] [] kthread+0xd6/0xf0 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] [] ret_from_fork+0x3f/0x70 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] Code: 08 b8 ea ff ff ff 5b 5d c3 48 83 c4 08 31 c0 5b 5d c3 0f 1f 40 00 8b 0d 62 a8 01 01 55 48 89 e5 85 c9 75 1b 65 8b 15 2b 2e f9 7e <89> d1 81 e1 ff ff ff 7f 39 cf 7f 13 81 ff fe 00 00 00 76 3f f7 [ 331.295005] NMI backtrace for cpu 2 [ 331.295005] CPU: 2 PID: 794 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 331.295005] task: ffff88007cafd780 ti: ffff88007c744000 task.ti: ffff88007c744000 [ 331.295005] RIP: 0010:[] [] rcu_read_delay+0x22/0xb0 [ 331.295005] RSP: 0018:ffff88007c747df0 EFLAGS: 00000246 [ 331.295005] RAX: 0000000000000773 RBX: 0000000000000000 RCX: 000000000016e360 [ 331.295005] RDX: 0000000000044071 RSI: ffff88007fa527d8 RDI: ffff88007c747e20 [ 331.295005] RBP: ffff88007c747e00 R08: ffff88007c744000 R09: ffff88007fa4cc00 [ 331.295005] R10: ffff88007c747e30 R11: 000000000000003c R12: ffff88007c747e20 [ 331.295005] R13: 00000069dd5e7519 R14: 000000000000127b R15: ffffffff820d6fd0 [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fa40000(0000) knlGS:0000000000000000 [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 331.295005] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 331.295005] Stack: [ 331.295005] 0000000000000000 0000000000000000 ffff88007c747ea8 ffffffff810ad458 [ 331.295005] 0000000000000000 000000007fa15380 d57caa470491aa84 0000000000001e98 [ 331.295005] 0000000000000000 ffff88007fa4d3f8 0000000100025af6 ffffffff810ad590 [ 331.295005] Call Trace: [ 331.295005] [] rcu_torture_reader+0x1a8/0x2e0 [ 331.295005] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 331.295005] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 331.295005] [] kthread+0xd6/0xf0 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] [] ret_from_fork+0x3f/0x70 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] Code: ff ff 5d c3 0f 1f 44 00 00 55 48 89 e5 41 54 53 49 89 fc e8 a1 83 07 00 48 63 0d 0e 95 02 01 31 d2 48 69 c9 a0 86 01 00 48 f7 f1 <48> 85 d2 75 15 bb 32 00 00 00 bf 58 89 41 00 e8 8a b5 28 00 48 [ 331.295005] NMI backtrace for cpu 3 [ 331.295005] CPU: 3 PID: 782 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 331.295005] task: ffff88007c919900 ti: ffff88007c5bc000 task.ti: ffff88007c5bc000 [ 331.295005] RIP: 0010:[] [] check_preemption_disabled+0x0/0xe0 [ 331.295005] RSP: 0018:ffff88007c5bfce8 EFLAGS: 00000097 [ 331.295005] RAX: 0000000000000002 RBX: ffff88007fb6cc00 RCX: 0000000000000002 [ 331.295005] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7 [ 331.295005] RBP: ffff88007c5bfcf0 R08: ffffffff81a0a240 R09: ffff88007fb6cc00 [ 331.295005] R10: ffff88007c5bfe30 R11: 0000000000000400 R12: 00000000cc13eda5 [ 331.295005] R13: 0000000000000001 R14: 00000000cfc06af0 R15: ffff88007c5bfdd0 [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fa60000(0000) knlGS:0000000000000000 [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 331.295005] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 331.295005] Stack: [ 331.295005] ffffffff813480d7 ffff88007c5bfd20 ffffffff8133944d ffff88007fb6cc00 [ 331.295005] 00000000cc13eda5 0000000000000001 00000000cfc06af0 ffff88007c5bfd30 [ 331.295005] ffffffff8133930a ffff88007c5bfd60 ffffffff810930c7 0000000000000286 [ 331.295005] Call Trace: [ 331.295005] [] ? debug_smp_processor_id+0x17/0x20 [ 331.295005] [] delay_tsc+0x1d/0xc0 [ 331.295005] [] __delay+0xa/0x10 [ 331.295005] [] do_raw_spin_lock+0x87/0x150 [ 331.295005] [] _raw_spin_lock_irqsave+0x1f/0x30 [ 331.295005] [] lock_timer_base.isra.23+0x4f/0x70 [ 331.295005] [] mod_timer+0x6a/0x200 [ 331.295005] [] ? preempt_schedule+0x30/0x30 [ 331.295005] [] rcu_torture_reader+0x2a7/0x2e0 [ 331.295005] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 331.295005] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 331.295005] [] kthread+0xd6/0xf0 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] [] ret_from_fork+0x3f/0x70 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] Code: 00 00 00 00 49 89 f7 c7 40 08 00 00 00 00 e9 1b ff ff ff 4d 89 e7 4c 8b 6d c8 49 83 cf 01 e9 0b ff ff ff 0f 1f 84 00 00 00 00 00 <55> 65 8b 05 a8 2d cc 7e 48 89 e5 41 56 41 55 41 54 53 65 8b 1d [ 331.295005] NMI backtrace for cpu 5 [ 331.295005] CPU: 5 PID: 775 Comm: rcu_torture_wri Tainted: G D 4.5.0-rc1+ #14 [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 331.295005] task: ffff88007c758000 ti: ffff88007c98c000 task.ti: ffff88007c98c000 [ 331.295005] RIP: 0010:[] [] smp_call_function_single+0x103/0x140 [ 331.295005] RSP: 0018:ffff88007c98fd50 EFLAGS: 00000202 [ 331.295005] RAX: 0000000000000001 RBX: 0000000000000009 RCX: 0000000000000000 [ 331.295005] RDX: 0000000000000000 RSI: ffff88007fab6440 RDI: ffffffff81cbdfe7 [ 331.295005] RBP: ffff88007c98fd90 R08: ffffffff81a0a320 R09: 0000000000000002 [ 331.295005] R10: 0000000000000009 R11: 0000000000000c00 R12: ffffffff810af980 [ 331.295005] R13: ffffffff81e47ac0 R14: 0000000000016440 R15: ffffffff81e48e00 [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007faa0000(0000) knlGS:0000000000000000 [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 331.295005] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 331.295005] Stack: [ 331.295005] 0000000000000000 0000000000000000 0000000000000000 0000000000000003 [ 331.295005] 000000000000cbb0 0000000000000002 0000000000000000 ffffffff81e47ac0 [ 331.295005] ffff88007c98fde8 ffffffff810aedbe ffffffff810af980 0000000000000009 [ 331.295005] Call Trace: [ 331.295005] [] sync_rcu_exp_select_cpus+0x1be/0x3d0 [ 331.295005] [] ? rcu_seq_end.part.52+0x30/0x30 [ 331.295005] [] synchronize_rcu_expedited.part.65+0x5f/0xb0 [ 331.295005] [] synchronize_rcu_expedited+0x16/0x40 [ 331.295005] [] ? debug_smp_processor_id+0x17/0x20 [ 331.295005] [] ? delay_tsc+0x8f/0xc0 [ 331.295005] [] ? __udelay+0x26/0x30 [ 331.295005] [] rcu_torture_writer+0x441/0x6b0 [ 331.295005] [] ? rcu_torture_fakewriter+0x160/0x160 [ 331.295005] [] kthread+0xd6/0xf0 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] [] ret_from_fork+0x3f/0x70 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] Code: c6 05 f9 5e e4 00 01 eb 86 e8 1a ab 27 00 89 c0 49 c7 c6 40 64 01 00 4c 89 f6 48 03 34 c5 20 f5 f2 81 8b 46 18 a8 01 74 09 f3 90 <8b> 46 18 a8 01 75 f7 83 4e 18 01 89 df 4c 89 e9 4c 89 e2 e8 e5 [ 331.295005] NMI backtrace for cpu 7 [ 331.295005] CPU: 7 PID: 787 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 331.295005] task: ffff88007c91d780 ti: ffff88007c750000 task.ti: ffff88007c750000 [ 331.295005] RIP: 0010:[] [] check_preemption_disabled+0x8/0xe0 [ 331.295005] RSP: 0018:ffff88007c753d90 EFLAGS: 00000246 [ 331.295005] RAX: 0000000080000001 RBX: 0000017001a4f518 RCX: 0000000000000001 [ 331.295005] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7 [ 331.295005] RBP: ffff88007c753da0 R08: ffff88007c750000 R09: ffff88007faecc00 [ 331.295005] R10: ffff88007c753e30 R11: 0000000000000001 R12: 00000170019e5d88 [ 331.295005] R13: 0000000000352fc5 R14: 0000000000000007 R15: ffffffff820d6fd0 [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000 [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 331.295005] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 331.295005] Stack: [ 331.295005] ffff88007c753da0 ffffffff813480d7 ffff88007c753dd0 ffffffff81339472 [ 331.295005] 000000000000000c ffff88007c753e20 00000069db15b06d 000000000000127b [ 331.295005] ffff88007c753de0 ffffffff81339337 ffff88007c753e00 ffffffff810add86 [ 331.295005] Call Trace: [ 331.295005] [] ? debug_smp_processor_id+0x17/0x20 [ 331.295005] [] delay_tsc+0x42/0xc0 [ 331.295005] [] __const_udelay+0x27/0x30 [ 331.295005] [] rcu_read_delay+0x36/0xb0 [ 331.295005] [] rcu_torture_reader+0x1a8/0x2e0 [ 331.295005] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 331.295005] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 331.295005] [] kthread+0xd6/0xf0 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] [] ret_from_fork+0x3f/0x70 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] Code: 40 08 00 00 00 00 e9 1b ff ff ff 4d 89 e7 4c 8b 6d c8 49 83 cf 01 e9 0b ff ff ff 0f 1f 84 00 00 00 00 00 55 65 8b 05 a8 2d cc 7e <48> 89 e5 41 56 41 55 41 54 53 65 8b 1d 27 21 cc 7e a9 ff ff ff [ 331.295005] NMI backtrace for cpu 8 [ 331.295005] CPU: 8 PID: 789 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 331.295005] task: ffff88007c91f080 ti: ffff88007c0f0000 task.ti: ffff88007c0f0000 [ 331.295005] RIP: 0010:[] [] do_raw_spin_lock+0x79/0x150 [ 331.295005] RSP: 0018:ffff88007fb03db8 EFLAGS: 00000002 [ 331.295005] RAX: 0000000000000001 RBX: ffff88007fb6cc00 RCX: 0000000000000103 [ 331.295005] RDX: 0000000080000103 RSI: ffffffff81ca0d44 RDI: 00000000ffffffff [ 331.295005] RBP: ffff88007fb03dd8 R08: 0000000000000000 R09: 000000000000f9ad [ 331.295005] R10: 000000003d550944 R11: 0000000002faf04c R12: 00000000c7b4e675 [ 331.295005] R13: 0000000000000001 R14: 00000000cfc06af0 R15: 0000000000000000 [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fb00000(0000) knlGS:0000000000000000 [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 331.295005] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 331.295005] Stack: [ 331.295005] ffff88007fb6cc00 ffffffff820d8c80 ffff88007fb6cc00 0000000000000000 [ 331.295005] ffff88007fb03df0 ffffffff818b3fda 000000000000000b ffff88007fb03e30 [ 331.295005] ffffffff810b96b6 0000000000000286 ffffffff81e4e828 000000fc640b0d4c [ 331.295005] Call Trace: [ 331.295005] d [] _raw_spin_lock+0x1a/0x20 [ 331.295005] [] add_timer_on+0x76/0x150 [ 331.295005] [] clocksource_watchdog+0x217/0x2f0 [ 331.295005] [] ? clocksource_unregister+0x50/0x50 [ 331.295005] [] call_timer_fn+0x30/0x120 [ 331.295005] [] ? clocksource_unregister+0x50/0x50 [ 331.295005] [] run_timer_softirq+0x20b/0x2b0 [ 331.295005] [] __do_softirq+0xd3/0x280 [ 331.295005] [] irq_exit+0x42/0x50 [ 331.295005] [] smp_apic_timer_interrupt+0x3d/0x50 [ 331.295005] [] apic_timer_interrupt+0x7f/0x90 [ 331.295005] d [] ? _cond_resched+0xb/0x20 [ 331.295005] [] ? stutter_wait+0x49/0xc0 [ 331.295005] [] rcu_torture_reader+0x11e/0x2e0 [ 331.295005] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 331.295005] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 331.295005] [] kthread+0xd6/0xf0 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] [] ret_from_fork+0x3f/0x70 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] Code: c0 74 67 4c 69 35 b4 0f d8 00 e8 03 00 00 45 31 e4 41 bd 01 00 00 00 4d 85 f6 74 22 8b 03 85 c0 75 09 f0 44 0f b1 2b 85 c0 74 3f 01 00 00 00 49 83 c4 01 e8 39 62 2a 00 4d 39 e6 75 de 48 c7 [ 331.295005] NMI backtrace for cpu 11 [ 331.295005] CPU: 11 PID: 798 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14 [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 331.295005] task: ffff88007cafcb00 ti: ffff88007c6f4000 task.ti: ffff88007c6f4000 [ 331.295005] RIP: 0010:[] [] default_send_IPI_mask_sequence_phys+0x9d/0xd0 [ 331.295005] RSP: 0018:ffff88007fb63dd0 EFLAGS: 00000046 [ 331.295005] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 000000000000000b [ 331.295005] RDX: 000000000000000b RSI: 0000000000000010 RDI: 0000000000000300 [ 331.295005] RBP: ffff88007fb63e08 R08: 0000000000000000 R09: 000000000000f9ad [ 331.295005] R10: ffff88007c6f7f58 R11: 0000000000000773 R12: ffffffff81f31740 [ 331.295005] R13: 0000000000000400 R14: 0000000000000002 R15: 000000000000000b [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000 [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 331.295005] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 331.295005] Stack: [ 331.295005] 0000000000000082 0000000b7fb63de0 000000000000ff40 0000000000000001 [ 331.295005] ffffffff8103fd20 00000000cfc06af0 0000000000000000 ffff88007fb63e18 [ 331.295005] ffffffff8103fd36 ffff88007fb63e60 ffffffff81331299 ffffffff81008b50 [ 331.295005] Call Trace: [ 331.295005] d [] ? irq_force_complete_move+0x20/0x20 [ 331.295005] [] nmi_raise_cpu_backtrace+0x16/0x20 [ 331.295005] [] nmi_trigger_all_cpu_backtrace+0x259/0x270 [ 331.295005] [] ? show_stack+0x20/0x50 [ 331.295005] [] arch_trigger_all_cpu_backtrace+0x14/0x20 [ 331.295005] [] do_raw_spin_lock+0xa5/0x150 [ 331.295005] [] _raw_spin_lock_irq+0x1b/0x20 [ 331.295005] [] run_timer_softirq+0x40/0x2b0 [ 331.295005] [] ? clockevents_program_event+0x7d/0x120 [ 331.295005] [] __do_softirq+0xd3/0x280 [ 331.295005] [] irq_exit+0x42/0x50 [ 331.295005] [] smp_apic_timer_interrupt+0x3d/0x50 [ 331.295005] [] apic_timer_interrupt+0x7f/0x90 [ 331.295005] d [] ? _raw_spin_unlock_irq+0xf/0x30 [ 331.295005] [] ? _raw_spin_unlock_irq+0x9/0x30 [ 331.295005] [] acct_collect+0x166/0x1a0 [ 331.295005] [] do_exit+0x4f9/0xc00 [ 331.295005] [] oops_end+0x84/0xb0 [ 331.295005] [] no_context+0x102/0x330 [ 331.295005] [] ? __mod_zone_page_state+0x6f/0xa0 [ 331.295005] [] __bad_area_nosemaphore+0x75/0x1f0 [ 331.295005] [] bad_area_nosemaphore+0xe/0x10 [ 331.295005] [] __do_page_fault+0x85/0x450 [ 331.295005] [] do_page_fault+0xc/0x10 [ 331.295005] [] page_fault+0x22/0x30 [ 331.295005] [] ? migrate_timer_list+0x32/0xc0 [ 331.295005] [] timer_cpu_notify+0xe4/0x160 [ 331.295005] [] notifier_call_chain+0x45/0x70 [ 331.295005] [] __raw_notifier_call_chain+0x9/0x10 [ 331.295005] [] cpu_notify_nofail+0x1e/0x30 [ 331.295005] [] _cpu_down+0x212/0x350 [ 331.295005] [] ? __call_rcu.constprop.74+0x380/0x380 [ 331.295005] [] ? call_rcu_bh+0x20/0x20 [ 331.295005] [] ? __rcu_read_unlock+0x50/0x50 [ 331.295005] [] ? __rcu_read_unlock+0x50/0x50 [ 331.295005] [] cpu_down+0x2f/0x50 [ 331.295005] [] torture_onoff+0x115/0x380 [ 331.295005] [] ? torture_kthread_stopping+0x70/0x70 [ 331.295005] [] kthread+0xd6/0xf0 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] [] ret_from_fork+0x3f/0x70 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4 [ 331.295005] NMI backtrace for cpu 12 [ 331.295005] CPU: 12 PID: 786 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 331.295005] task: ffff88007c91cb00 ti: ffff88007c0dc000 task.ti: ffff88007c0dc000 [ 331.295005] RIP: 0010:[] [] queued_spin_lock_slowpath+0x16f/0x1a0 [ 331.295005] RSP: 0018:ffff88007c0dfd18 EFLAGS: 00000002 [ 331.295005] RAX: 0000000000000101 RBX: ffff88007fa2cc00 RCX: 0000000000000001 [ 331.295005] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101 [ 331.295005] RBP: ffff88007c0dfd30 R08: 000000000000062f R09: 0000000000000743 [ 331.295005] R10: ffff88007c0dff58 R11: 0000000000000743 R12: 00000000cfc06af0 [ 331.295005] R13: 0000000000000001 R14: 00000000cfc06af0 R15: ffff88007c0dfdd0 [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000 [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 331.295005] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 331.295005] Stack: [ 331.295005] ffff88007fa2cc00 00000000cfc06af0 0000000000000001 ffff88007c0dfd60 [ 331.295005] ffffffff81093185 0000000000000286 ffff88007fa2cc00 ffff88007fa2cc00 [ 331.295005] 000000000000cc00 ffff88007c0dfd80 ffffffff818b401f 0000000000000001 [ 331.295005] Call Trace: [ 331.295005] [] do_raw_spin_lock+0x145/0x150 [ 331.295005] [] _raw_spin_lock_irqsave+0x1f/0x30 [ 331.295005] [] lock_timer_base.isra.23+0x4f/0x70 [ 331.295005] [] mod_timer+0x6a/0x200 [ 331.295005] [] ? preempt_schedule+0x30/0x30 [ 331.295005] [] rcu_torture_reader+0x2a7/0x2e0 [ 331.295005] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 331.295005] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 331.295005] [] kthread+0xd6/0xf0 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] [] ret_from_fork+0x3f/0x70 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3 [ 331.295005] NMI backtrace for cpu 13 [ 331.295005] CPU: 13 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 331.295005] task: ffff88007c918000 ti: ffff88007c0f4000 task.ti: ffff88007c0f4000 [ 331.295005] RIP: 0010:[] [] preempt_count_add+0xe/0xc0 [ 331.295005] RSP: 0018:ffff88007c0f7da0 EFLAGS: 00000282 [ 331.295005] RAX: 0000000080000000 RBX: 0000017001aa6260 RCX: 0000000000000001 [ 331.295005] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: 0000000000000001 [ 331.295005] RBP: ffff88007c0f7dd0 R08: ffff88007c0f4000 R09: ffff88007fbacc00 [ 331.295005] R10: ffff88007c0f7e30 R11: 0000000000000001 R12: 0000017001a4d5c0 [ 331.295005] R13: 00000000000aa2c1 R14: 000000000000000d R15: ffffffff820d6fd0 [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fba0000(0000) knlGS:0000000000000000 [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 331.295005] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 331.295005] Stack: [ 331.295005] ffff88007c0f7dd0 ffffffff8133946d 0000000000000000 ffff88007c0f7e20 [ 331.295005] 00000069dd5ea44f 000000000000127b ffff88007c0f7de0 ffffffff81339337 [ 331.295005] ffff88007c0f7e00 ffffffff810addf7 0000000000000000 0000000000000000 [ 331.295005] Call Trace: [ 331.295005] [] ? delay_tsc+0x3d/0xc0 [ 331.295005] [] __const_udelay+0x27/0x30 [ 331.295005] [] rcu_read_delay+0xa7/0xb0 [ 331.295005] [] rcu_torture_reader+0x1a8/0x2e0 [ 331.295005] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 331.295005] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 331.295005] [] kthread+0xd6/0xf0 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] [] ret_from_fork+0x3f/0x70 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] Code: c7 c7 fb dd c9 81 e8 72 f1 fd ff c6 05 a0 b3 e9 00 01 eb 9a 66 0f 1f 84 00 00 00 00 00 8b 15 02 a7 01 01 55 65 01 3d d2 2c f9 7e <48> 89 e5 53 89 fb 85 d2 75 11 65 8b 05 c1 2c f9 7e 0f b6 c0 3d [ 331.295005] NMI backtrace for cpu 14 [ 331.295005] CPU: 14 PID: 783 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 331.295005] task: ffff88007c91a580 ti: ffff88007cb28000 task.ti: ffff88007cb28000 [ 331.295005] RIP: 0010:[] [] preempt_count_sub+0x33/0xa0 [ 331.295005] RSP: 0018:ffff88007cb2be08 EFLAGS: 00000297 [ 331.295005] RAX: 000000000000000a RBX: 0000000000000000 RCX: 0000000000000001 [ 331.295005] RDX: 0000000080000001 RSI: ffffffff81d29759 RDI: 00000000ffffffff [ 331.295005] RBP: ffff88007cb2bea8 R08: ffff88007cb28000 R09: ffff88007fbccc00 [ 331.295005] R10: ffff88007cb2be30 R11: 0000000000000001 R12: 0000000000000000 [ 331.295005] R13: 00000069dd60520e R14: 000000000000127b R15: ffffffff820d6fd0 [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fbc0000(0000) knlGS:0000000000000000 [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 331.295005] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 331.295005] Stack: [ 331.295005] ffffffff810ad3a5 0000000000000000 0000000000015380 9abda0ee3aa4a492 [ 331.295005] 0000000000001b28 0000000000000000 ffff88007fbcd3f8 0000000100025af6 [ 331.295005] ffffffff810ad590 0000000000000000 ffffffff0000000e 00000000ffffffff [ 331.295005] Call Trace: [ 331.295005] [] ? rcu_torture_reader+0xf5/0x2e0 [ 331.295005] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 331.295005] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 331.295005] [] kthread+0xd6/0xf0 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] [] ret_from_fork+0x3f/0x70 [ 331.295005] [] ? kthread_worker_fn+0x180/0x180 [ 331.295005] Code: 89 e5 85 c9 75 1b 65 8b 15 2b 2e f9 7e 89 d1 81 e1 ff ff ff 7f 39 cf 7f 13 81 ff fe 00 00 00 76 3f f7 df 65 01 3d 0e 2e f9 7e 5d e8 b7 34 2c 00 85 c0 74 f5 8b 15 0d 09 0a 01 85 d2 75 eb 48 [ 331.295005] NMI backtrace for cpu 15 [ 331.295005] CPU: 15 PID: 0 Comm: swapper/15 Tainted: G D 4.5.0-rc1+ #14 [ 331.295005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 331.295005] task: ffff88007cc9cb00 ti: ffff88007ccb8000 task.ti: ffff88007ccb8000 [ 331.295005] RIP: 0010:[] [] default_idle+0x13/0xd0 [ 331.295005] RSP: 0018:ffff88007ccbbec0 EFLAGS: 00000202 [ 331.295005] RAX: 000000000000000f RBX: ffff88007ccbc000 RCX: 0000000000000000 [ 331.295005] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7 [ 331.295005] RBP: ffff88007ccbbed0 R08: 0000000000000000 R09: 0000000000000000 [ 331.295005] R10: 0000000000000010 R11: 0000000000018f70 R12: 0000000000000000 [ 331.295005] R13: 0000000000000000 R14: ffff88007ccb8000 R15: ffff88007ccb8000 [ 331.295005] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000 [ 331.295005] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 331.295005] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 331.295005] Stack: [ 331.295005] ffff88007ccbc000 0000000000000000 ffff88007ccbbee0 ffffffff8100fafa [ 331.295005] ffff88007ccbbef0 ffffffff8108fd65 ffff88007ccbbf30 ffffffff8108fff7 [ 331.295005] ffff88007ccbc000 000000000000000f 0000000000000000 0000000000000000 [ 331.295005] Call Trace: [ 331.295005] [] arch_cpu_idle+0xa/0x10 [ 331.295005] [] default_idle_call+0x25/0x30 [ 331.295005] [] cpu_startup_entry+0x287/0x2e0 [ 331.295005] [] start_secondary+0xf9/0x100 [ 331.295005] Code: 0f 1f 84 00 00 00 00 00 55 89 ff 48 89 e5 f0 48 0f ab 3e 5d c3 0f 1f 00 55 48 89 e5 41 54 53 e8 c4 8d 33 00 66 66 66 66 90 fb f4 b8 8d 33 00 41 89 c4 66 66 66 66 90 5b 41 5c 5d c3 41 89 c4 [ 316.338053] BUG: spinlock lockup suspected on CPU#3, rcu_torture_rea/782 [ 316.338053] lock: 0xffff88007fb6cc00, .magic: dead4ead, .owner: torture_onoff/798, .owner_cpu: 11 [ 316.338053] CPU: 3 PID: 782 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.338053] ffff88007fb6cc00 ffff88007c5bfd10 ffffffff8132cd6c ffff88007cafcb00 [ 316.338053] ffff88007c5bfd30 ffffffff81092fb3 ffff88007fb6cc00 00000000cfc06af0 [ 316.338053] ffff88007c5bfd60 ffffffff810930db 0000000000000286 ffff88007fb6cc00 [ 316.338053] Call Trace: [ 316.338053] [] dump_stack+0x4e/0x82 [ 316.338053] [] spin_dump+0x73/0xc0 [ 316.338053] [] do_raw_spin_lock+0x9b/0x150 [ 316.338053] [] _raw_spin_lock_irqsave+0x1f/0x30 [ 316.338053] [] lock_timer_base.isra.23+0x4f/0x70 [ 316.338053] [] mod_timer+0x6a/0x200 [ 316.338053] [] ? preempt_schedule+0x30/0x30 [ 316.338053] [] rcu_torture_reader+0x2a7/0x2e0 [ 316.338053] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 316.338053] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 316.338053] [] kthread+0xd6/0xf0 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] [] ret_from_fork+0x3f/0x70 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] Sending NMI to all CPUs: [ 316.338053] NMI backtrace for cpu 0 [ 316.338053] CPU: 0 PID: 780 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.338053] task: ffff88007c75be80 ti: ffff88007c774000 task.ti: ffff88007c774000 [ 316.338053] RIP: 0010:[] [] _cond_resched+0x0/0x20 [ 316.338053] RSP: 0018:ffff88007c777df0 EFLAGS: 00000202 [ 316.338053] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001 [ 316.338053] RDX: 0000000080000000 RSI: 0000000000000286 RDI: ffffffff81c9f0eb [ 316.338053] RBP: ffff88007c777e00 R08: ffff88007c774000 R09: ffff88007fa0cc00 [ 316.338053] R10: ffff88007c777e30 R11: 000000000000005a R12: 0000000000000000 [ 316.338053] R13: 0000006a519a813f R14: 000000000000127b R15: ffffffff820d6fd0 [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000 [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.338053] CR2: 000056506239dcc8 CR3: 000000007b0ee000 CR4: 00000000000006f0 [ 316.338053] Stack: [ 316.338053] ffffffff81126479 0000000000000000 ffff88007c777ea8 ffffffff810ad3ce [ 316.338053] 0000000000000000 0000000081a0a240 44bdc3e2f3607f45 0000000000001066 [ 316.338053] dead000000000200 0000000000000000 0000000100026293 ffffffff810ad590 [ 316.338053] Call Trace: [ 316.338053] [] ? stutter_wait+0x49/0xc0 [ 316.338053] [] rcu_torture_reader+0x11e/0x2e0 [ 316.338053] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 316.338053] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 316.338053] [] kthread+0xd6/0xf0 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] [] ret_from_fork+0x3f/0x70 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] Code: 75 7e a9 ff ff ff 7f 74 01 c3 9c 58 f6 c4 02 74 f8 55 48 89 e5 e8 a1 ff ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <65> 8b 15 49 b4 75 7e 85 d2 74 03 31 c0 c3 55 48 89 e5 e8 79 ff [ 316.338053] NMI backtrace for cpu 2 [ 316.338053] CPU: 2 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.338053] task: ffff88007c918000 ti: ffff88007c0f4000 task.ti: ffff88007c0f4000 [ 316.338053] RIP: 0010:[] [] stutter_wait+0x44/0xc0 [ 316.338053] RSP: 0018:ffff88007c0f7df8 EFLAGS: 00000202 [ 316.338053] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001 [ 316.338053] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb [ 316.338053] RBP: ffff88007c0f7e00 R08: ffff88007c0f4000 R09: ffff88007fa4cc00 [ 316.338053] R10: ffff88007c0f7e30 R11: 000000000000005a R12: 0000000000000000 [ 316.338053] R13: 0000006a51d7a937 R14: 000000000000127b R15: ffffffff820d6fd0 [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fa40000(0000) knlGS:0000000000000000 [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.338053] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 316.338053] Stack: [ 316.338053] 0000000000000000 ffff88007c0f7ea8 ffffffff810ad3ce 0000000000000000 [ 316.338053] 0000000081a0a240 e1c9c2832fdf50b8 00000000000010f6 dead000000000200 [ 316.338053] 0000000000000000 0000000100026298 ffffffff810ad590 0000000000000000 [ 316.338053] Call Trace: [ 316.338053] [] rcu_torture_reader+0x11e/0x2e0 [ 316.338053] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 316.338053] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 316.338053] [] kthread+0xd6/0xf0 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] [] ret_from_fork+0x3f/0x70 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] Code: 75 12 48 8b 05 0e af fd 00 48 85 c0 74 66 8b 00 85 c0 75 60 8b 05 61 ae fd 00 85 c0 74 26 8b 05 57 ae fd 00 83 f8 01 75 07 eb 35 c7 94 78 00 8b 05 45 ae fd 00 85 c0 75 f1 48 89 df e8 65 ff [ 316.338053] NMI backtrace for cpu 3 [ 316.338053] CPU: 3 PID: 782 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.338053] task: ffff88007c919900 ti: ffff88007c5bc000 task.ti: ffff88007c5bc000 [ 316.338053] RIP: 0010:[] [] default_send_IPI_mask_sequence_phys+0x9d/0xd0 [ 316.338053] RSP: 0018:ffff88007c5bfc90 EFLAGS: 00000046 [ 316.338053] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 0000000000000003 [ 316.338053] RDX: 0000000000000003 RSI: 0000000000000010 RDI: 0000000000000300 [ 316.338053] RBP: ffff88007c5bfcc8 R08: 0000000000000000 R09: 000000000000f9ad [ 316.338053] R10: ffff88007c5bff58 R11: 00000000000008fa R12: ffffffff81f31740 [ 316.338053] R13: 0000000000000400 R14: 0000000000000002 R15: 0000000000000003 [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fa60000(0000) knlGS:0000000000000000 [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.338053] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 316.338053] Stack: [ 316.338053] 0000000000000086 000000037c5bfca0 000000000000ff40 0000000000000001 [ 316.338053] ffffffff8103fd20 00000000cfc06af0 ffff88007c5bfdd0 ffff88007c5bfcd8 [ 316.338053] ffffffff8103fd36 ffff88007c5bfd20 ffffffff81331299 ffffffff81008b50 [ 316.338053] Call Trace: [ 316.338053] [] ? irq_force_complete_move+0x20/0x20 [ 316.338053] [] nmi_raise_cpu_backtrace+0x16/0x20 [ 316.338053] [] nmi_trigger_all_cpu_backtrace+0x259/0x270 [ 316.338053] [] ? show_stack+0x20/0x50 [ 316.338053] [] arch_trigger_all_cpu_backtrace+0x14/0x20 [ 316.338053] [] do_raw_spin_lock+0xa5/0x150 [ 316.338053] [] _raw_spin_lock_irqsave+0x1f/0x30 [ 316.338053] [] lock_timer_base.isra.23+0x4f/0x70 [ 316.338053] [] mod_timer+0x6a/0x200 [ 316.338053] [] ? preempt_schedule+0x30/0x30 [ 316.338053] [] rcu_torture_reader+0x2a7/0x2e0 [ 316.338053] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 316.338053] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 316.338053] [] kthread+0xd6/0xf0 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] [] ret_from_fork+0x3f/0x70 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4 [ 316.338053] NMI backtrace for cpu 5 [ 316.338053] CPU: 5 PID: 775 Comm: rcu_torture_wri Tainted: G D 4.5.0-rc1+ #14 [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.338053] task: ffff88007c758000 ti: ffff88007c98c000 task.ti: ffff88007c98c000 [ 316.338053] RIP: 0010:[] [] smp_call_function_single+0x106/0x140 [ 316.338053] RSP: 0018:ffff88007c98fd50 EFLAGS: 00000202 [ 316.338053] RAX: 0000000000000001 RBX: 0000000000000009 RCX: 0000000000000000 [ 316.338053] RDX: 0000000000000000 RSI: ffff88007fab6440 RDI: ffffffff81cbdfe7 [ 316.338053] RBP: ffff88007c98fd90 R08: ffffffff81a0a320 R09: 0000000000000002 [ 316.338053] R10: 0000000000000009 R11: 0000000000000c00 R12: ffffffff810af980 [ 316.338053] R13: ffffffff81e47ac0 R14: 0000000000016440 R15: ffffffff81e48e00 [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007faa0000(0000) knlGS:0000000000000000 [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.338053] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 316.338053] Stack: [ 316.338053] 0000000000000000 0000000000000000 0000000000000000 0000000000000003 [ 316.338053] 000000000000cbb0 0000000000000002 0000000000000000 ffffffff81e47ac0 [ 316.338053] ffff88007c98fde8 ffffffff810aedbe ffffffff810af980 0000000000000009 [ 316.338053] Call Trace: [ 316.338053] [] sync_rcu_exp_select_cpus+0x1be/0x3d0 [ 316.338053] [] ? rcu_seq_end.part.52+0x30/0x30 [ 316.338053] [] synchronize_rcu_expedited.part.65+0x5f/0xb0 [ 316.338053] [] synchronize_rcu_expedited+0x16/0x40 [ 316.338053] [] ? debug_smp_processor_id+0x17/0x20 [ 316.338053] [] ? delay_tsc+0x8f/0xc0 [ 316.338053] [] ? __udelay+0x26/0x30 [ 316.338053] [] rcu_torture_writer+0x441/0x6b0 [ 316.338053] [] ? rcu_torture_fakewriter+0x160/0x160 [ 316.338053] [] kthread+0xd6/0xf0 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] [] ret_from_fork+0x3f/0x70 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] Code: 5e e4 00 01 eb 86 e8 1a ab 27 00 89 c0 49 c7 c6 40 64 01 00 4c 89 f6 48 03 34 c5 20 f5 f2 81 8b 46 18 a8 01 74 09 f3 90 8b 46 18 01 75 f7 83 4e 18 01 89 df 4c 89 e9 4c 89 e2 e8 e5 fd ff ff [ 316.338053] NMI backtrace for cpu 7 [ 316.338053] CPU: 7 PID: 783 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.338053] task: ffff88007c91a580 ti: ffff88007cb28000 task.ti: ffff88007cb28000 [ 316.338053] RIP: 0010:[] [] stutter_wait+0x49/0xc0 [ 316.338053] RSP: 0018:ffff88007cb2bdf8 EFLAGS: 00000246 [ 316.338053] RAX: 0000000000000000 RBX: ffffffff81c9f0eb RCX: 0000000000000001 [ 316.338053] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb [ 316.338053] RBP: ffff88007cb2be00 R08: ffff88007cb28000 R09: ffff88007faecc00 [ 316.338053] R10: ffff88007cb2be30 R11: 0000000000000001 R12: 0000000000000000 [ 316.338053] R13: 0000006a51d7a959 R14: 000000000000127b R15: ffffffff820d6fd0 [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000 [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.338053] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 316.338053] Stack: [ 316.338053] 0000000000000000 ffff88007cb2bea8 ffffffff810ad3ce 0000000000000000 [ 316.338053] 0000000000015380 938d1d05a9edd694 00000000000000f6 dead000000000200 [ 316.338053] 0000000000000000 0000000100026298 ffffffff810ad590 0000000000000000 [ 316.338053] Call Trace: [ 316.338053] [] rcu_torture_reader+0x11e/0x2e0 [ 316.338053] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 316.338053] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 316.338053] [] kthread+0xd6/0xf0 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] [] ret_from_fork+0x3f/0x70 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] Code: 0e af fd 00 48 85 c0 74 66 8b 00 85 c0 75 60 8b 05 61 ae fd 00 85 c0 74 26 8b 05 57 ae fd 00 83 f8 01 75 07 eb 35 e8 c7 94 78 00 <8b> 05 45 ae fd 00 85 c0 75 f1 48 89 df e8 65 ff ff ff eb b4 bf [ 316.338053] NMI backtrace for cpu 8 [ 316.338053] CPU: 8 PID: 789 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.338053] task: ffff88007c91f080 ti: ffff88007c0f0000 task.ti: ffff88007c0f0000 [ 316.338053] RIP: 0010:[] [] delay_tsc+0x25/0xc0 [ 316.338053] RSP: 0018:ffff88007fb03d78 EFLAGS: 00000006 [ 316.338053] RAX: 0000000032ed229e RBX: ffff88007fb6cc00 RCX: 0000000000000103 [ 316.338053] RDX: 0000000000000172 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7 [ 316.338053] RBP: ffff88007fb03d98 R08: 0000000000000000 R09: 000000000000f9ad [ 316.338053] R10: 000000003d550944 R11: 0000000002faf04c R12: 00000000cb2cbf89 [ 316.338053] R13: 0000000000000001 R14: 0000000000000008 R15: 0000000000000000 [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fb00000(0000) knlGS:0000000000000000 [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.338053] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 316.338053] Stack: [ 316.338053] ffff88007fb6cc00 00000000cb2cbf89 0000000000000001 00000000cfc06af0 [ 316.338053] ffff88007fb03da8 ffffffff8133930a ffff88007fb03dd8 ffffffff810930c7 [ 316.338053] ffff88007fb6cc00 ffffffff820d8c80 ffff88007fb6cc00 0000000000000000 [ 316.338053] Call Trace: [ 316.338053] d [] __delay+0xa/0x10 [ 316.338053] [] do_raw_spin_lock+0x87/0x150 [ 316.338053] [] _raw_spin_lock+0x1a/0x20 [ 316.338053] [] add_timer_on+0x76/0x150 [ 316.338053] [] clocksource_watchdog+0x217/0x2f0 [ 316.338053] [] ? clocksource_unregister+0x50/0x50 [ 316.338053] [] call_timer_fn+0x30/0x120 [ 316.338053] [] ? clocksource_unregister+0x50/0x50 [ 316.338053] [] run_timer_softirq+0x20b/0x2b0 [ 316.338053] [] __do_softirq+0xd3/0x280 [ 316.338053] [] irq_exit+0x42/0x50 [ 316.338053] [] smp_apic_timer_interrupt+0x3d/0x50 [ 316.338053] [] apic_timer_interrupt+0x7f/0x90 [ 316.338053] d [] ? _cond_resched+0xb/0x20 [ 316.338053] [] ? stutter_wait+0x49/0xc0 [ 316.338053] [] rcu_torture_reader+0x11e/0x2e0 [ 316.338053] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 316.338053] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 316.338053] [] kthread+0xd6/0xf0 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] [] ret_from_fork+0x3f/0x70 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] Code: 5e 41 5f 5d c3 90 55 48 89 e5 41 56 41 55 41 54 53 49 89 fd bf 01 00 00 00 e8 68 ec d3 ff e8 73 ec 00 00 41 89 c6 0f ae e8 0f 31 <48> c1 e2 20 48 09 c2 49 89 d4 eb 16 f3 90 bf 01 00 00 00 e8 43 [ 316.338053] NMI backtrace for cpu 11 [ 316.338053] CPU: 11 PID: 798 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14 [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.338053] task: ffff88007cafcb00 ti: ffff88007c6f4000 task.ti: ffff88007c6f4000 [ 316.338053] RIP: 0010:[] [] queued_spin_lock_slowpath+0x171/0x1a0 [ 316.338053] RSP: 0018:ffff88007fb63e58 EFLAGS: 00000002 [ 316.338053] RAX: 0000000000000101 RBX: ffff88007fb6cc00 RCX: 0000000000000001 [ 316.338053] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101 [ 316.338053] RBP: ffff88007fb63e70 R08: 000000000000062f R09: 00000000000008e3 [ 316.338053] R10: ffff88007c6f7f58 R11: 00000000000008e3 R12: 00000000cfc06af0 [ 316.338053] R13: 0000000000000001 R14: 00000000cfc06af0 R15: 0000000000000000 [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000 [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.338053] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 316.338053] Stack: [ 316.338053] ffff88007fb6cc00 00000000cfc06af0 0000000000000001 ffff88007fb63ea0 [ 316.338053] ffffffff81093185 ffff88007fb6cc00 ffffffff81e080c8 0000000000000001 [ 316.338053] 0000000000000001 ffff88007fb63eb8 ffffffff818b3ffb ffff88007fb6cc00 [ 316.338053] Call Trace: [ 316.338053] d [] do_raw_spin_lock+0x145/0x150 [ 316.338053] [] _raw_spin_lock_irq+0x1b/0x20 [ 316.338053] [] run_timer_softirq+0x40/0x2b0 [ 316.338053] [] ? clockevents_program_event+0x7d/0x120 [ 316.338053] [] __do_softirq+0xd3/0x280 [ 316.338053] [] irq_exit+0x42/0x50 [ 316.338053] [] smp_apic_timer_interrupt+0x3d/0x50 [ 316.338053] [] apic_timer_interrupt+0x7f/0x90 [ 316.338053] d [] ? _raw_spin_unlock_irq+0xf/0x30 [ 316.338053] [] ? _raw_spin_unlock_irq+0x9/0x30 [ 316.338053] [] acct_collect+0x166/0x1a0 [ 316.338053] [] do_exit+0x4f9/0xc00 [ 316.338053] [] oops_end+0x84/0xb0 [ 316.338053] [] no_context+0x102/0x330 [ 316.338053] [] ? __mod_zone_page_state+0x6f/0xa0 [ 316.338053] [] __bad_area_nosemaphore+0x75/0x1f0 [ 316.338053] [] bad_area_nosemaphore+0xe/0x10 [ 316.338053] [] __do_page_fault+0x85/0x450 [ 316.338053] [] do_page_fault+0xc/0x10 [ 316.338053] [] page_fault+0x22/0x30 [ 316.338053] [] ? migrate_timer_list+0x32/0xc0 [ 316.338053] [] timer_cpu_notify+0xe4/0x160 [ 316.338053] [] notifier_call_chain+0x45/0x70 [ 316.338053] [] __raw_notifier_call_chain+0x9/0x10 [ 316.338053] [] cpu_notify_nofail+0x1e/0x30 [ 316.338053] [] _cpu_down+0x212/0x350 [ 316.338053] [] ? __call_rcu.constprop.74+0x380/0x380 [ 316.338053] [] ? call_rcu_bh+0x20/0x20 [ 316.338053] [] ? __rcu_read_unlock+0x50/0x50 [ 316.338053] [] ? __rcu_read_unlock+0x50/0x50 [ 316.338053] [] cpu_down+0x2f/0x50 [ 316.338053] [] torture_onoff+0x115/0x380 [ 316.338053] [] ? torture_kthread_stopping+0x70/0x70 [ 316.338053] [] kthread+0xd6/0xf0 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] [] ret_from_fork+0x3f/0x70 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] Code: d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 8b 03 <84> c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3 f3 90 [ 316.338053] NMI backtrace for cpu 12 [ 316.338053] CPU: 12 PID: 786 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.338053] task: ffff88007c91cb00 ti: ffff88007c0dc000 task.ti: ffff88007c0dc000 [ 316.338053] RIP: 0010:[] [] queued_spin_lock_slowpath+0x16f/0x1a0 [ 316.338053] RSP: 0018:ffff88007c0dfd18 EFLAGS: 00000002 [ 316.338053] RAX: 0000000000000101 RBX: ffff88007fa2cc00 RCX: 0000000000000001 [ 316.338053] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101 [ 316.338053] RBP: ffff88007c0dfd30 R08: 000000000000062f R09: 0000000000000743 [ 316.338053] R10: ffff88007c0dff58 R11: 0000000000000743 R12: 00000000cfc06af0 [ 316.338053] R13: 0000000000000001 R14: 00000000cfc06af0 R15: ffff88007c0dfdd0 [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000 [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.338053] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 316.338053] Stack: [ 316.338053] ffff88007fa2cc00 00000000cfc06af0 0000000000000001 ffff88007c0dfd60 [ 316.338053] ffffffff81093185 0000000000000286 ffff88007fa2cc00 ffff88007fa2cc00 [ 316.338053] 000000000000cc00 ffff88007c0dfd80 ffffffff818b401f 0000000000000001 [ 316.338053] Call Trace: [ 316.338053] [] do_raw_spin_lock+0x145/0x150 [ 316.338053] [] _raw_spin_lock_irqsave+0x1f/0x30 [ 316.338053] [] lock_timer_base.isra.23+0x4f/0x70 [ 316.338053] [] mod_timer+0x6a/0x200 [ 316.338053] [] ? preempt_schedule+0x30/0x30 [ 316.338053] [] rcu_torture_reader+0x2a7/0x2e0 [ 316.338053] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 316.338053] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 316.338053] [] kthread+0xd6/0xf0 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] [] ret_from_fork+0x3f/0x70 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3 [ 316.338053] NMI backtrace for cpu 13 [ 316.338053] CPU: 13 PID: 793 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.338053] task: ffff88007caf8c80 ti: ffff88007c740000 task.ti: ffff88007c740000 [ 316.338053] RIP: 0010:[] [] stutter_wait+0x49/0xc0 [ 316.338053] RSP: 0018:ffff88007c743df8 EFLAGS: 00000246 [ 316.338053] RAX: 0000000000000000 RBX: ffffffff81c9f0eb RCX: 0000000000000001 [ 316.338053] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb [ 316.338053] RBP: ffff88007c743e00 R08: ffff88007c740000 R09: ffff88007fbacc00 [ 316.338053] R10: ffff88007c743e30 R11: 0000000000000001 R12: 0000000000000000 [ 316.338053] R13: 0000006a51d78b8c R14: 000000000000127b R15: ffffffff820d6fd0 [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fba0000(0000) knlGS:0000000000000000 [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.338053] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 316.338053] Stack: [ 316.338053] 0000000000000000 ffff88007c743ea8 ffffffff810ad3ce 0000000000000000 [ 316.338053] 0000000081a0a240 9db61e92c238bec5 00000000000000a4 dead000000000200 [ 316.338053] 0000000000000000 0000000100026297 ffffffff810ad590 0000000000000000 [ 316.338053] Call Trace: [ 316.338053] [] rcu_torture_reader+0x11e/0x2e0 [ 316.338053] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 316.338053] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 316.338053] [] kthread+0xd6/0xf0 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] [] ret_from_fork+0x3f/0x70 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] Code: 0e af fd 00 48 85 c0 74 66 8b 00 85 c0 75 60 8b 05 61 ae fd 00 85 c0 74 26 8b 05 57 ae fd 00 83 f8 01 75 07 eb 35 e8 c7 94 78 00 <8b> 05 45 ae fd 00 85 c0 75 f1 48 89 df e8 65 ff ff ff eb b4 bf [ 316.338053] NMI backtrace for cpu 14 [ 316.338053] CPU: 14 PID: 781 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.338053] task: ffff88007c918c80 ti: ffff88007c5b8000 task.ti: ffff88007c5b8000 [ 316.338053] RIP: 0010:[] [] _cond_resched+0x0/0x20 [ 316.338053] RSP: 0018:ffff88007c5bbdf0 EFLAGS: 00000202 [ 316.338053] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001 [ 316.338053] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb [ 316.338053] RBP: ffff88007c5bbe00 R08: ffff88007c5b8000 R09: ffff88007fbccc00 [ 316.338053] R10: ffff88007c5bbe30 R11: 0000000000000001 R12: 0000000000000000 [ 316.338053] R13: 0000006a51d78bd7 R14: 000000000000127b R15: ffffffff820d6fd0 [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fbc0000(0000) knlGS:0000000000000000 [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.338053] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 316.338053] Stack: [ 316.338053] ffffffff81126479 0000000000000000 ffff88007c5bbea8 ffffffff810ad3ce [ 316.338053] 0000000000000000 0000000081a0a240 1f40bd867ce4d9c3 0000000000000d0d [ 316.338053] dead000000000200 0000000000000000 0000000100026297 ffffffff810ad590 [ 316.338053] Call Trace: [ 316.338053] [] ? stutter_wait+0x49/0xc0 [ 316.338053] [] rcu_torture_reader+0x11e/0x2e0 [ 316.338053] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 316.338053] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 316.338053] [] kthread+0xd6/0xf0 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] [] ret_from_fork+0x3f/0x70 [ 316.338053] [] ? kthread_worker_fn+0x180/0x180 [ 316.338053] Code: 75 7e a9 ff ff ff 7f 74 01 c3 9c 58 f6 c4 02 74 f8 55 48 89 e5 e8 a1 ff ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <65> 8b 15 49 b4 75 7e 85 d2 74 03 31 c0 c3 55 48 89 e5 e8 79 ff [ 316.338053] NMI backtrace for cpu 15 [ 316.338053] CPU: 15 PID: 0 Comm: swapper/15 Tainted: G D 4.5.0-rc1+ #14 [ 316.338053] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 316.338053] task: ffff88007cc9cb00 ti: ffff88007ccb8000 task.ti: ffff88007ccb8000 [ 316.338053] RIP: 0010:[] [] default_idle+0x13/0xd0 [ 316.338053] RSP: 0018:ffff88007ccbbec0 EFLAGS: 00000202 [ 316.338053] RAX: 000000000000000f RBX: ffff88007ccbc000 RCX: 0000000000000000 [ 316.338053] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7 [ 316.338053] RBP: ffff88007ccbbed0 R08: 0000000000000000 R09: 0000000000000000 [ 316.338053] R10: 0000000000000010 R11: 0000000000018f70 R12: 0000000000000000 [ 316.338053] R13: 0000000000000000 R14: ffff88007ccb8000 R15: ffff88007ccb8000 [ 316.338053] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000 [ 316.338053] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 316.338053] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 316.338053] Stack: [ 316.338053] ffff88007ccbc000 0000000000000000 ffff88007ccbbee0 ffffffff8100fafa [ 316.338053] ffff88007ccbbef0 ffffffff8108fd65 ffff88007ccbbf30 ffffffff8108fff7 [ 316.338053] ffff88007ccbc000 000000000000000f 0000000000000000 0000000000000000 [ 316.338053] Call Trace: [ 316.338053] [] arch_cpu_idle+0xa/0x10 [ 316.338053] [] default_idle_call+0x25/0x30 [ 316.338053] [] cpu_startup_entry+0x287/0x2e0 [ 316.338053] [] start_secondary+0xf9/0x100 [ 316.338053] Code: 0f 1f 84 00 00 00 00 00 55 89 ff 48 89 e5 f0 48 0f ab 3e 5d c3 0f 1f 00 55 48 89 e5 41 54 53 e8 c4 8d 33 00 66 66 66 66 90 fb f4 b8 8d 33 00 41 89 c4 66 66 66 66 90 5b 41 5c 5d c3 41 89 c4 [ 311.122004] BUG: spinlock lockup suspected on CPU#8, rcu_torture_rea/789 [ 311.122004] lock: 0xffff88007fb6cc00, .magic: dead4ead, .owner: torture_onoff/798, .owner_cpu: 11 [ 311.122004] CPU: 8 PID: 789 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 311.122004] ffff88007fb6cc00 ffff88007fb03d88 ffffffff8132cd6c ffff88007cafcb00 [ 311.122004] ffff88007fb03da8 ffffffff81092fb3 ffff88007fb6cc00 00000000cfc06af0 [ 311.122004] ffff88007fb03dd8 ffffffff810930db ffff88007fb6cc00 ffffffff820d8c80 [ 311.122004] Call Trace: [ 311.122004] [] dump_stack+0x4e/0x82 [ 311.122004] [] spin_dump+0x73/0xc0 [ 311.122004] [] do_raw_spin_lock+0x9b/0x150 [ 311.122004] [] _raw_spin_lock+0x1a/0x20 [ 311.122004] [] add_timer_on+0x76/0x150 [ 311.122004] [] clocksource_watchdog+0x217/0x2f0 [ 311.122004] [] ? clocksource_unregister+0x50/0x50 [ 311.122004] [] call_timer_fn+0x30/0x120 [ 311.122004] [] ? clocksource_unregister+0x50/0x50 [ 311.122004] [] run_timer_softirq+0x20b/0x2b0 [ 311.122004] [] __do_softirq+0xd3/0x280 [ 311.122004] [] irq_exit+0x42/0x50 [ 311.122004] [] smp_apic_timer_interrupt+0x3d/0x50 [ 311.122004] [] apic_timer_interrupt+0x7f/0x90 [ 311.122004] [] ? _cond_resched+0xb/0x20 [ 311.122004] [] ? stutter_wait+0x49/0xc0 [ 311.122004] [] rcu_torture_reader+0x11e/0x2e0 [ 311.122004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 311.122004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 311.122004] [] kthread+0xd6/0xf0 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] [] ret_from_fork+0x3f/0x70 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] Sending NMI to all CPUs: [ 311.122004] NMI backtrace for cpu 0 [ 311.122004] CPU: 0 PID: 780 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 311.122004] task: ffff88007c75be80 ti: ffff88007c774000 task.ti: ffff88007c774000 [ 311.122004] RIP: 0010:[] [] _cond_resched+0xb/0x20 [ 311.122004] RSP: 0018:ffff88007c777df0 EFLAGS: 00000286 [ 311.122004] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001 [ 311.122004] RDX: 0000000080000000 RSI: 0000000000000286 RDI: ffffffff81c9f0eb [ 311.122004] RBP: ffff88007c777e00 R08: ffff88007c774000 R09: ffff88007fa0cc00 [ 311.122004] R10: ffff88007c777e30 R11: 000000000000005a R12: 0000000000000000 [ 311.122004] R13: 0000006a519a813f R14: 000000000000127b R15: ffffffff820d6fd0 [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fa00000(0000) knlGS:0000000000000000 [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 311.122004] CR2: 000056506239dcc8 CR3: 000000007b0ee000 CR4: 00000000000006f0 [ 311.122004] Stack: [ 311.122004] ffffffff81126479 0000000000000000 ffff88007c777ea8 ffffffff810ad3ce [ 311.122004] 0000000000000000 0000000081a0a240 44bdc3e2f3607f45 0000000000001066 [ 311.122004] dead000000000200 0000000000000000 0000000100026293 ffffffff810ad590 [ 311.122004] Call Trace: [ 311.122004] [] ? stutter_wait+0x49/0xc0 [ 311.122004] [] rcu_torture_reader+0x11e/0x2e0 [ 311.122004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 311.122004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 311.122004] [] kthread+0xd6/0xf0 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] [] ret_from_fork+0x3f/0x70 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] Code: 58 f6 c4 02 74 f8 55 48 89 e5 e8 a1 ff ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 65 8b 15 49 b4 75 7e 85 d2 74 03 <31> c0 c3 55 48 89 e5 e8 79 ff ff ff b8 01 00 00 00 5d c3 66 90 [ 311.122004] NMI backtrace for cpu 2 [ 311.122004] CPU: 2 PID: 790 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 311.122004] task: ffff88007c918000 ti: ffff88007c0f4000 task.ti: ffff88007c0f4000 [ 311.122004] RIP: 0010:[] [] stutter_wait+0x49/0xc0 [ 311.122004] RSP: 0018:ffff88007c0f7df8 EFLAGS: 00000246 [ 311.122004] RAX: 0000000000000000 RBX: ffffffff81c9f0eb RCX: 0000000000000001 [ 311.122004] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb [ 311.122004] RBP: ffff88007c0f7e00 R08: ffff88007c0f4000 R09: ffff88007fa4cc00 [ 311.122004] R10: ffff88007c0f7e30 R11: 000000000000005a R12: 0000000000000000 [ 311.122004] R13: 0000006a51d7a937 R14: 000000000000127b R15: ffffffff820d6fd0 [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fa40000(0000) knlGS:0000000000000000 [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 311.122004] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 311.122004] Stack: [ 311.122004] 0000000000000000 ffff88007c0f7ea8 ffffffff810ad3ce 0000000000000000 [ 311.122004] 0000000081a0a240 e1c9c2832fdf50b8 00000000000010f6 dead000000000200 [ 311.122004] 0000000000000000 0000000100026298 ffffffff810ad590 0000000000000000 [ 311.122004] Call Trace: [ 311.122004] [] rcu_torture_reader+0x11e/0x2e0 [ 311.122004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 311.122004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 311.122004] [] kthread+0xd6/0xf0 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] [] ret_from_fork+0x3f/0x70 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] Code: 0e af fd 00 48 85 c0 74 66 8b 00 85 c0 75 60 8b 05 61 ae fd 00 85 c0 74 26 8b 05 57 ae fd 00 83 f8 01 75 07 eb 35 e8 c7 94 78 00 <8b> 05 45 ae fd 00 85 c0 75 f1 48 89 df e8 65 ff ff ff eb b4 bf [ 311.122004] NMI backtrace for cpu 3 [ 311.122004] CPU: 3 PID: 782 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 311.122004] task: ffff88007c919900 ti: ffff88007c5bc000 task.ti: ffff88007c5bc000 [ 311.122004] RIP: 0010:[] [] queued_spin_lock_slowpath+0x127/0x1a0 [ 311.122004] RSP: 0018:ffff88007c5bfd18 EFLAGS: 00000002 [ 311.122004] RAX: 0000000000000000 RBX: ffff88007fb6cc00 RCX: ffff88007fa75e80 [ 311.122004] RDX: 0000000000100101 RSI: ffffffff81ca0d44 RDI: 0000000000100000 [ 311.122004] RBP: ffff88007c5bfd30 R08: 0000000000000000 R09: 0000000000000a64 [ 311.122004] R10: ffff88007c5bff58 R11: 0000000000000a64 R12: 0000000000000000 [ 311.122004] R13: ffff88007fa75e80 R14: 00000000cfc06af0 R15: ffff88007c5bfdd0 [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fa60000(0000) knlGS:0000000000000000 [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 311.122004] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 311.122004] Stack: [ 311.122004] ffff88007fb6cc00 00000000cfc06af0 0000000000000001 ffff88007c5bfd60 [ 311.122004] ffffffff81093185 0000000000000286 ffff88007fb6cc00 ffff88007fb6cc00 [ 311.122004] 000000000000cc00 ffff88007c5bfd80 ffffffff818b401f 000000000000000b [ 311.122004] Call Trace: [ 311.122004] [] do_raw_spin_lock+0x145/0x150 [ 311.122004] [] _raw_spin_lock_irqsave+0x1f/0x30 [ 311.122004] [] lock_timer_base.isra.23+0x4f/0x70 [ 311.122004] [] mod_timer+0x6a/0x200 [ 311.122004] [] ? preempt_schedule+0x30/0x30 [ 311.122004] [] rcu_torture_reader+0x2a7/0x2e0 [ 311.122004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 311.122004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 311.122004] [] kthread+0xd6/0xf0 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] [] ret_from_fork+0x3f/0x70 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] Code: 48 03 14 c5 20 f5 f2 81 48 89 0a 8b 41 08 85 c0 75 09 f3 90 8b 41 08 85 c0 74 f7 4c 8b 01 4d 85 c0 74 08 41 0f 18 08 eb 02 f3 90 <8b> 13 66 85 d2 75 f7 be 01 00 00 00 eb 10 89 d0 f0 0f b1 33 39 [ 311.122004] NMI backtrace for cpu 5 [ 311.122004] CPU: 5 PID: 775 Comm: rcu_torture_wri Tainted: G D 4.5.0-rc1+ #14 [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 311.122004] task: ffff88007c758000 ti: ffff88007c98c000 task.ti: ffff88007c98c000 [ 311.122004] RIP: 0010:[] [] smp_call_function_single+0x103/0x140 [ 311.122004] RSP: 0018:ffff88007c98fd50 EFLAGS: 00000202 [ 311.122004] RAX: 0000000000000001 RBX: 0000000000000009 RCX: 0000000000000000 [ 311.122004] RDX: 0000000000000000 RSI: ffff88007fab6440 RDI: ffffffff81cbdfe7 [ 311.122004] RBP: ffff88007c98fd90 R08: ffffffff81a0a320 R09: 0000000000000002 [ 311.122004] R10: 0000000000000009 R11: 0000000000000c00 R12: ffffffff810af980 [ 311.122004] R13: ffffffff81e47ac0 R14: 0000000000016440 R15: ffffffff81e48e00 [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007faa0000(0000) knlGS:0000000000000000 [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 311.122004] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 311.122004] Stack: [ 311.122004] 0000000000000000 0000000000000000 0000000000000000 0000000000000003 [ 311.122004] 000000000000cbb0 0000000000000002 0000000000000000 ffffffff81e47ac0 [ 311.122004] ffff88007c98fde8 ffffffff810aedbe ffffffff810af980 0000000000000009 [ 311.122004] Call Trace: [ 311.122004] [] sync_rcu_exp_select_cpus+0x1be/0x3d0 [ 311.122004] [] ? rcu_seq_end.part.52+0x30/0x30 [ 311.122004] [] synchronize_rcu_expedited.part.65+0x5f/0xb0 [ 311.122004] [] synchronize_rcu_expedited+0x16/0x40 [ 311.122004] [] ? debug_smp_processor_id+0x17/0x20 [ 311.122004] [] ? delay_tsc+0x8f/0xc0 [ 311.122004] [] ? __udelay+0x26/0x30 [ 311.122004] [] rcu_torture_writer+0x441/0x6b0 [ 311.122004] [] ? rcu_torture_fakewriter+0x160/0x160 [ 311.122004] [] kthread+0xd6/0xf0 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] [] ret_from_fork+0x3f/0x70 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] Code: c6 05 f9 5e e4 00 01 eb 86 e8 1a ab 27 00 89 c0 49 c7 c6 40 64 01 00 4c 89 f6 48 03 34 c5 20 f5 f2 81 8b 46 18 a8 01 74 09 f3 90 <8b> 46 18 a8 01 75 f7 83 4e 18 01 89 df 4c 89 e9 4c 89 e2 e8 e5 [ 311.122004] NMI backtrace for cpu 7 [ 311.122004] CPU: 7 PID: 783 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 311.122004] task: ffff88007c91a580 ti: ffff88007cb28000 task.ti: ffff88007cb28000 [ 311.122004] RIP: 0010:[] [] stutter_wait+0x49/0xc0 [ 311.122004] RSP: 0018:ffff88007cb2bdf8 EFLAGS: 00000246 [ 311.122004] RAX: 0000000000000000 RBX: ffffffff81c9f0eb RCX: 0000000000000001 [ 311.122004] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb [ 311.122004] RBP: ffff88007cb2be00 R08: ffff88007cb28000 R09: ffff88007faecc00 [ 311.122004] R10: ffff88007cb2be30 R11: 0000000000000001 R12: 0000000000000000 [ 311.122004] R13: 0000006a51d7a959 R14: 000000000000127b R15: ffffffff820d6fd0 [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fae0000(0000) knlGS:0000000000000000 [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 311.122004] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 311.122004] Stack: [ 311.122004] 0000000000000000 ffff88007cb2bea8 ffffffff810ad3ce 0000000000000000 [ 311.122004] 0000000000015380 938d1d05a9edd694 00000000000000f6 dead000000000200 [ 311.122004] 0000000000000000 0000000100026298 ffffffff810ad590 0000000000000000 [ 311.122004] Call Trace: [ 311.122004] [] rcu_torture_reader+0x11e/0x2e0 [ 311.122004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 311.122004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 311.122004] [] kthread+0xd6/0xf0 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] [] ret_from_fork+0x3f/0x70 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] Code: 0e af fd 00 48 85 c0 74 66 8b 00 85 c0 75 60 8b 05 61 ae fd 00 85 c0 74 26 8b 05 57 ae fd 00 83 f8 01 75 07 eb 35 e8 c7 94 78 00 <8b> 05 45 ae fd 00 85 c0 75 f1 48 89 df e8 65 ff ff ff eb b4 bf [ 311.122004] NMI backtrace for cpu 8 [ 311.122004] CPU: 8 PID: 789 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 311.122004] task: ffff88007c91f080 ti: ffff88007c0f0000 task.ti: ffff88007c0f0000 [ 311.122004] RIP: 0010:[] [] default_send_IPI_mask_sequence_phys+0x9d/0xd0 [ 311.122004] RSP: 0018:ffff88007fb03d08 EFLAGS: 00000046 [ 311.122004] RAX: 0000000000000400 RBX: 000000000000a130 RCX: 0000000000000008 [ 311.122004] RDX: 0000000000000008 RSI: 0000000000000010 RDI: 0000000000000300 [ 311.122004] RBP: ffff88007fb03d40 R08: 0000000000000000 R09: 000000000000f9ad [ 311.122004] R10: ffff88007c0f3f58 R11: 0000000000000a84 R12: ffffffff81f31740 [ 311.122004] R13: 0000000000000400 R14: 0000000000000002 R15: 0000000000000008 [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fb00000(0000) knlGS:0000000000000000 [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 311.122004] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 311.122004] Stack: [ 311.122004] 0000000000000082 000000087fb03d18 000000000000ff40 0000000000000001 [ 311.122004] ffffffff8103fd20 00000000cfc06af0 0000000000000000 ffff88007fb03d50 [ 311.122004] ffffffff8103fd36 ffff88007fb03d98 ffffffff81331299 ffffffff81008b50 [ 311.122004] Call Trace: [ 311.122004] d [] ? irq_force_complete_move+0x20/0x20 [ 311.122004] [] nmi_raise_cpu_backtrace+0x16/0x20 [ 311.122004] [] nmi_trigger_all_cpu_backtrace+0x259/0x270 [ 311.122004] [] ? show_stack+0x20/0x50 [ 311.122004] [] arch_trigger_all_cpu_backtrace+0x14/0x20 [ 311.122004] [] do_raw_spin_lock+0xa5/0x150 [ 311.122004] [] _raw_spin_lock+0x1a/0x20 [ 311.122004] [] add_timer_on+0x76/0x150 [ 311.122004] [] clocksource_watchdog+0x217/0x2f0 [ 311.122004] [] ? clocksource_unregister+0x50/0x50 [ 311.122004] [] call_timer_fn+0x30/0x120 [ 311.122004] [] ? clocksource_unregister+0x50/0x50 [ 311.122004] [] run_timer_softirq+0x20b/0x2b0 [ 311.122004] [] __do_softirq+0xd3/0x280 [ 311.122004] [] irq_exit+0x42/0x50 [ 311.122004] [] smp_apic_timer_interrupt+0x3d/0x50 [ 311.122004] [] apic_timer_interrupt+0x7f/0x90 [ 311.122004] d [] ? _cond_resched+0xb/0x20 [ 311.122004] [] ? stutter_wait+0x49/0xc0 [ 311.122004] [] rcu_torture_reader+0x11e/0x2e0 [ 311.122004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 311.122004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 311.122004] [] kthread+0xd6/0xf0 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] [] ret_from_fork+0x3f/0x70 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] Code: 90 8b 0c 25 00 c3 5f ff 80 e5 10 75 f2 89 d0 c1 e0 18 89 04 25 10 c3 5f ff 41 83 fe 02 44 89 e8 41 0f 45 c6 89 04 25 00 c3 5f ff 91 48 8b 05 32 09 ef 00 89 55 d4 ff 90 18 01 00 00 8b 55 d4 [ 311.122004] NMI backtrace for cpu 11 [ 311.122004] CPU: 11 PID: 798 Comm: torture_onoff Tainted: G D 4.5.0-rc1+ #14 [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 311.122004] task: ffff88007cafcb00 ti: ffff88007c6f4000 task.ti: ffff88007c6f4000 [ 311.122004] RIP: 0010:[] [] queued_spin_lock_slowpath+0x16f/0x1a0 [ 311.122004] RSP: 0018:ffff88007fb63e58 EFLAGS: 00000002 [ 311.122004] RAX: 0000000000100101 RBX: ffff88007fb6cc00 RCX: 0000000000000001 [ 311.122004] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101 [ 311.122004] RBP: ffff88007fb63e70 R08: 000000000000062f R09: 00000000000008e3 [ 311.122004] R10: ffff88007c6f7f58 R11: 00000000000008e3 R12: 00000000cfc06af0 [ 311.122004] R13: 0000000000000001 R14: 00000000cfc06af0 R15: 0000000000000000 [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fb60000(0000) knlGS:0000000000000000 [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 311.122004] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 311.122004] Stack: [ 311.122004] ffff88007fb6cc00 00000000cfc06af0 0000000000000001 ffff88007fb63ea0 [ 311.122004] ffffffff81093185 ffff88007fb6cc00 ffffffff81e080c8 0000000000000001 [ 311.122004] 0000000000000001 ffff88007fb63eb8 ffffffff818b3ffb ffff88007fb6cc00 [ 311.122004] Call Trace: [ 311.122004] d [] do_raw_spin_lock+0x145/0x150 [ 311.122004] [] _raw_spin_lock_irq+0x1b/0x20 [ 311.122004] [] run_timer_softirq+0x40/0x2b0 [ 311.122004] [] ? clockevents_program_event+0x7d/0x120 [ 311.122004] [] __do_softirq+0xd3/0x280 [ 311.122004] [] irq_exit+0x42/0x50 [ 311.122004] [] smp_apic_timer_interrupt+0x3d/0x50 [ 311.122004] [] apic_timer_interrupt+0x7f/0x90 [ 311.122004] d [] ? _raw_spin_unlock_irq+0xf/0x30 [ 311.122004] [] ? _raw_spin_unlock_irq+0x9/0x30 [ 311.122004] [] acct_collect+0x166/0x1a0 [ 311.122004] [] do_exit+0x4f9/0xc00 [ 311.122004] [] oops_end+0x84/0xb0 [ 311.122004] [] no_context+0x102/0x330 [ 311.122004] [] ? __mod_zone_page_state+0x6f/0xa0 [ 311.122004] [] __bad_area_nosemaphore+0x75/0x1f0 [ 311.122004] [] bad_area_nosemaphore+0xe/0x10 [ 311.122004] [] __do_page_fault+0x85/0x450 [ 311.122004] [] do_page_fault+0xc/0x10 [ 311.122004] [] page_fault+0x22/0x30 [ 311.122004] [] ? migrate_timer_list+0x32/0xc0 [ 311.122004] [] timer_cpu_notify+0xe4/0x160 [ 311.122004] [] notifier_call_chain+0x45/0x70 [ 311.122004] [] __raw_notifier_call_chain+0x9/0x10 [ 311.122004] [] cpu_notify_nofail+0x1e/0x30 [ 311.122004] [] _cpu_down+0x212/0x350 [ 311.122004] [] ? __call_rcu.constprop.74+0x380/0x380 [ 311.122004] [] ? call_rcu_bh+0x20/0x20 [ 311.122004] [] ? __rcu_read_unlock+0x50/0x50 [ 311.122004] [] ? __rcu_read_unlock+0x50/0x50 [ 311.122004] [] cpu_down+0x2f/0x50 [ 311.122004] [] torture_onoff+0x115/0x380 [ 311.122004] [] ? torture_kthread_stopping+0x70/0x70 [ 311.122004] [] kthread+0xd6/0xf0 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] [] ret_from_fork+0x3f/0x70 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3 [ 311.122004] NMI backtrace for cpu 12 [ 311.122004] CPU: 12 PID: 786 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 311.122004] task: ffff88007c91cb00 ti: ffff88007c0dc000 task.ti: ffff88007c0dc000 [ 311.122004] RIP: 0010:[] [] queued_spin_lock_slowpath+0x16f/0x1a0 [ 311.122004] RSP: 0018:ffff88007c0dfd18 EFLAGS: 00000002 [ 311.122004] RAX: 0000000000000101 RBX: ffff88007fa2cc00 RCX: 0000000000000001 [ 311.122004] RDX: 0000000000000101 RSI: 0000000000000001 RDI: 0000000000000101 [ 311.122004] RBP: ffff88007c0dfd30 R08: 000000000000062f R09: 0000000000000743 [ 311.122004] R10: ffff88007c0dff58 R11: 0000000000000743 R12: 00000000cfc06af0 [ 311.122004] R13: 0000000000000001 R14: 00000000cfc06af0 R15: ffff88007c0dfdd0 [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fb80000(0000) knlGS:0000000000000000 [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 311.122004] CR2: 0000000000000000 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 311.122004] Stack: [ 311.122004] ffff88007fa2cc00 00000000cfc06af0 0000000000000001 ffff88007c0dfd60 [ 311.122004] ffffffff81093185 0000000000000286 ffff88007fa2cc00 ffff88007fa2cc00 [ 311.122004] 000000000000cc00 ffff88007c0dfd80 ffffffff818b401f 0000000000000001 [ 311.122004] Call Trace: [ 311.122004] [] do_raw_spin_lock+0x145/0x150 [ 311.122004] [] _raw_spin_lock_irqsave+0x1f/0x30 [ 311.122004] [] lock_timer_base.isra.23+0x4f/0x70 [ 311.122004] [] mod_timer+0x6a/0x200 [ 311.122004] [] ? preempt_schedule+0x30/0x30 [ 311.122004] [] rcu_torture_reader+0x2a7/0x2e0 [ 311.122004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 311.122004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 311.122004] [] kthread+0xd6/0xf0 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] [] ret_from_fork+0x3f/0x70 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] Code: c2 89 d0 66 31 c0 39 c7 74 e7 4d 85 c0 c6 03 01 74 30 41 c7 40 08 01 00 00 00 e9 4e ff ff ff 83 fa 01 75 07 e9 4b ff ff ff f3 90 <8b> 03 84 c0 75 f8 b8 01 00 00 00 66 89 03 5b 41 5c 41 5d 5d c3 [ 311.122004] NMI backtrace for cpu 13 [ 311.122004] CPU: 13 PID: 793 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 311.122004] task: ffff88007caf8c80 ti: ffff88007c740000 task.ti: ffff88007c740000 [ 311.122004] RIP: 0010:[] [] _cond_resched+0x0/0x20 [ 311.122004] RSP: 0018:ffff88007c743df0 EFLAGS: 00000202 [ 311.122004] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001 [ 311.122004] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb [ 311.122004] RBP: ffff88007c743e00 R08: ffff88007c740000 R09: ffff88007fbacc00 [ 311.122004] R10: ffff88007c743e30 R11: 0000000000000001 R12: 0000000000000000 [ 311.122004] R13: 0000006a51d78b8c R14: 000000000000127b R15: ffffffff820d6fd0 [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fba0000(0000) knlGS:0000000000000000 [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 311.122004] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 311.122004] Stack: [ 311.122004] ffffffff81126479 0000000000000000 ffff88007c743ea8 ffffffff810ad3ce [ 311.122004] 0000000000000000 0000000081a0a240 9db61e92c238bec5 00000000000000a4 [ 311.122004] dead000000000200 0000000000000000 0000000100026297 ffffffff810ad590 [ 311.122004] Call Trace: [ 311.122004] [] ? stutter_wait+0x49/0xc0 [ 311.122004] [] rcu_torture_reader+0x11e/0x2e0 [ 311.122004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 311.122004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 311.122004] [] kthread+0xd6/0xf0 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] [] ret_from_fork+0x3f/0x70 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] Code: 75 7e a9 ff ff ff 7f 74 01 c3 9c 58 f6 c4 02 74 f8 55 48 89 e5 e8 a1 ff ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <65> 8b 15 49 b4 75 7e 85 d2 74 03 31 c0 c3 55 48 89 e5 e8 79 ff [ 311.122004] NMI backtrace for cpu 14 [ 311.122004] CPU: 14 PID: 781 Comm: rcu_torture_rea Tainted: G D 4.5.0-rc1+ #14 [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 311.122004] task: ffff88007c918c80 ti: ffff88007c5b8000 task.ti: ffff88007c5b8000 [ 311.122004] RIP: 0010:[] [] _cond_resched+0x0/0x20 [ 311.122004] RSP: 0018:ffff88007c5bbdf0 EFLAGS: 00000202 [ 311.122004] RAX: 0000000000000001 RBX: ffffffff81c9f0eb RCX: 0000000000000001 [ 311.122004] RDX: 0000000080000000 RSI: ffffffff81d29759 RDI: ffffffff81c9f0eb [ 311.122004] RBP: ffff88007c5bbe00 R08: ffff88007c5b8000 R09: ffff88007fbccc00 [ 311.122004] R10: ffff88007c5bbe30 R11: 0000000000000001 R12: 0000000000000000 [ 311.122004] R13: 0000006a51d78bd7 R14: 000000000000127b R15: ffffffff820d6fd0 [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fbc0000(0000) knlGS:0000000000000000 [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 311.122004] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 311.122004] Stack: [ 311.122004] ffffffff81126479 0000000000000000 ffff88007c5bbea8 ffffffff810ad3ce [ 311.122004] 0000000000000000 0000000081a0a240 1f40bd867ce4d9c3 0000000000000d0d [ 311.122004] dead000000000200 0000000000000000 0000000100026297 ffffffff810ad590 [ 311.122004] Call Trace: [ 311.122004] [] ? stutter_wait+0x49/0xc0 [ 311.122004] [] rcu_torture_reader+0x11e/0x2e0 [ 311.122004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 311.122004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 311.122004] [] kthread+0xd6/0xf0 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] [] ret_from_fork+0x3f/0x70 [ 311.122004] [] ? kthread_worker_fn+0x180/0x180 [ 311.122004] Code: 75 7e a9 ff ff ff 7f 74 01 c3 9c 58 f6 c4 02 74 f8 55 48 89 e5 e8 a1 ff ff ff 5d c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 <65> 8b 15 49 b4 75 7e 85 d2 74 03 31 c0 c3 55 48 89 e5 e8 79 ff [ 311.122004] NMI backtrace for cpu 15 [ 311.122004] CPU: 15 PID: 0 Comm: swapper/15 Tainted: G D 4.5.0-rc1+ #14 [ 311.122004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-20160216_104851-anatol 04/01/2014 [ 311.122004] task: ffff88007cc9cb00 ti: ffff88007ccb8000 task.ti: ffff88007ccb8000 [ 311.122004] RIP: 0010:[] [] default_idle+0x13/0xd0 [ 311.122004] RSP: 0018:ffff88007ccbbec0 EFLAGS: 00000202 [ 311.122004] RAX: 000000000000000f RBX: ffff88007ccbc000 RCX: 0000000000000000 [ 311.122004] RDX: 0000000000000000 RSI: ffffffff81ca0d44 RDI: ffffffff81cbdfe7 [ 311.122004] RBP: ffff88007ccbbed0 R08: 0000000000000000 R09: 0000000000000000 [ 311.122004] R10: 0000000000000010 R11: 0000000000018f70 R12: 0000000000000000 [ 311.122004] R13: 0000000000000000 R14: ffff88007ccb8000 R15: ffff88007ccb8000 [ 311.122004] FS: 0000000000000000(0000) GS:ffff88007fbe0000(0000) knlGS:0000000000000000 [ 311.122004] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 311.122004] CR2: 000056506230a720 CR3: 0000000001e0f000 CR4: 00000000000006e0 [ 311.122004] Stack: [ 311.122004] ffff88007ccbc000 0000000000000000 ffff88007ccbbee0 ffffffff8100fafa [ 311.122004] ffff88007ccbbef0 ffffffff8108fd65 ffff88007ccbbf30 ffffffff8108fff7 [ 311.122004] ffff88007ccbc000 000000000000000f 0000000000000000 0000000000000000 [ 311.122004] Call Trace: [ 311.122004] [] arch_cpu_idle+0xa/0x10 [ 311.122004] [] default_idle_call+0x25/0x30 [ 311.122004] [] cpu_startup_entry+0x287/0x2e0 [ 311.122004] [] start_secondary+0xf9/0x100 [ 311.122004] Code: 0f 1f 84 00 00 00 00 00 55 89 ff 48 89 e5 f0 48 0f ab 3e 5d c3 0f 1f 00 55 48 89 e5 41 54 53 e8 c4 8d 33 00 66 66 66 66 90 fb f4 b8 8d 33 00 41 89 c4 66 66 66 66 90 5b 41 5c 5d c3 41 89 c4 [ 462.372004] INFO: rcu_preempt detected stalls on CPUs/tasks: [ 462.372004] 3-...: (1 GPs behind) idle=6cf/140000000000000/0 softirq=8341/8345 fqs=48568 [ 462.372004] 8-...: (1 GPs behind) idle=503/140000000000001/0 softirq=9290/9294 fqs=48568 [ 462.372004] 11-...: (1 GPs behind) idle=32f/140000000000001/0 softirq=8320/8323 fqs=48568 [ 462.372004] 12-...: (1 GPs behind) idle=e2f/140000000000000/0 softirq=8014/8017 fqs=48569 [ 462.372004] (detected by 13, t=147016 jiffies, g=4731, c=4730, q=2) [ 462.372004] Task dump for CPU 3: [ 462.372004] rcu_torture_rea R running task 14064 782 2 0x00000008 [ 462.372004] 0000000000000a63 ffff88007c5bff58 ffff88007fb6cc00 0000000000000000 [ 462.372004] ffff88007fa75e80 00000000cfc06af0 ffff88007c5bfd08 ffffffff813480d7 [ 462.372004] ffff88007c5bfd30 ffffffff81091faf ffff88007fb6cc00 00000000cfc06af0 [ 462.372004] Call Trace: [ 462.372004] [] ? debug_smp_processor_id+0x17/0x20 [ 462.372004] [] ? queued_spin_lock_slowpath+0x6f/0x1a0 [ 462.372004] [] ? do_raw_spin_lock+0x145/0x150 [ 462.372004] [] ? _raw_spin_lock_irqsave+0x1f/0x30 [ 462.372004] [] ? lock_timer_base.isra.23+0x4f/0x70 [ 462.372004] [] ? mod_timer+0x6a/0x200 [ 462.372004] [] ? preempt_schedule+0x30/0x30 [ 462.372004] [] ? rcu_torture_reader+0x2a7/0x2e0 [ 462.372004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 462.372004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 462.372004] [] ? kthread+0xd6/0xf0 [ 462.372004] [] ? kthread_worker_fn+0x180/0x180 [ 462.372004] [] ? ret_from_fork+0x3f/0x70 [ 462.372004] [] ? kthread_worker_fn+0x180/0x180 [ 462.372004] Task dump for CPU 8: [ 462.372004] rcu_torture_rea R running task 14760 789 2 0x00000008 [ 462.372004] ffffffff818af15c ffff88007c0f3ce8 ffff88007cdcbe80 ffff88007c91f080 [ 462.372004] 0000000000000046 0000000000000000 ffff88007c0f4000 0000000000000000 [ 462.372004] 00000047648a43ed 000000000000126f ffffffff820d6eb0 ffff88007c0f3d38 [ 462.372004] Call Trace: [ 462.372004] [] ? __schedule+0x38c/0xb00 [ 462.372004] [] ? preempt_schedule_irq+0x43/0x60 [ 462.372004] [] ? retint_kernel+0x1b/0x1d [ 462.372004] [] ? _cond_resched+0xb/0x20 [ 462.372004] [] ? stutter_wait+0x49/0xc0 [ 462.372004] [] ? rcu_torture_reader+0x11e/0x2e0 [ 462.372004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 462.372004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 462.372004] [] ? kthread+0xd6/0xf0 [ 462.372004] [] ? kthread_worker_fn+0x180/0x180 [ 462.372004] [] ? ret_from_fork+0x3f/0x70 [ 462.372004] [] ? kthread_worker_fn+0x180/0x180 [ 462.372004] Task dump for CPU 11: [ 462.372004] torture_onoff R running task 13416 798 2 0x00000008 [ 462.372004] ffffffff8104a8b5 ffff88007ffdb600 ffff88007fb78f70 0000000000000002 [ 462.372004] 0000000000000000 0000000000000000 ffff88007c6f7be8 ffff88007cafcb00 [ 462.372004] ffff88007c6f7b70 ffffffff8104aa3e ffff88007c6f7bc8 ffffffff8104ac95 [ 462.372004] Call Trace: [ 462.372004] [] ? __bad_area_nosemaphore+0x75/0x1f0 [ 462.372004] [] ? bad_area_nosemaphore+0xe/0x10 [ 462.372004] [] ? __do_page_fault+0x85/0x450 [ 462.372004] [] ? do_page_fault+0xc/0x10 [ 462.372004] [] ? page_fault+0x22/0x30 [ 462.372004] [] ? migrate_timer_list+0x32/0xc0 [ 462.372004] [] ? timer_cpu_notify+0xe4/0x160 [ 462.372004] [] ? notifier_call_chain+0x45/0x70 [ 462.372004] [] ? __raw_notifier_call_chain+0x9/0x10 [ 462.372004] [] ? cpu_notify_nofail+0x1e/0x30 [ 462.372004] [] ? _cpu_down+0x212/0x350 [ 462.372004] [] ? __call_rcu.constprop.74+0x380/0x380 [ 462.372004] [] ? call_rcu_bh+0x20/0x20 [ 462.372004] [] ? __rcu_read_unlock+0x50/0x50 [ 462.372004] [] ? __rcu_read_unlock+0x50/0x50 [ 462.372004] [] ? cpu_down+0x2f/0x50 [ 462.372004] [] ? torture_onoff+0x115/0x380 [ 462.372004] [] ? torture_kthread_stopping+0x70/0x70 [ 462.372004] [] ? kthread+0xd6/0xf0 [ 462.372004] [] ? kthread_worker_fn+0x180/0x180 [ 462.372004] [] ? ret_from_fork+0x3f/0x70 [ 462.372004] [] ? kthread_worker_fn+0x180/0x180 [ 462.372004] Task dump for CPU 12: [ 462.372004] rcu_torture_rea R running task 14064 786 2 0x00000008 [ 462.372004] 0000000000000742 ffff88007c0dff58 ffff88007c0dfd20 ffffffff813311f5 [ 462.372004] 000000000000062f 0000000f7fa2cc00 ffff88007fa2cc00 00000000cfc06af0 [ 462.372004] 0000000000000001 00000000cfc06af0 ffff88007fa2cc00 00000000cfc06af0 [ 462.372004] Call Trace: [ 462.372004] [] ? nmi_trigger_all_cpu_backtrace+0x1b5/0x270 [ 462.372004] [] ? do_raw_spin_lock+0x145/0x150 [ 462.372004] [] ? _raw_spin_lock_irqsave+0x1f/0x30 [ 462.372004] [] ? lock_timer_base.isra.23+0x4f/0x70 [ 462.372004] [] ? mod_timer+0x6a/0x200 [ 462.372004] [] ? preempt_schedule+0x30/0x30 [ 462.372004] [] ? rcu_torture_reader+0x2a7/0x2e0 [ 462.372004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 462.372004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 462.372004] [] ? kthread+0xd6/0xf0 [ 462.372004] [] ? kthread_worker_fn+0x180/0x180 [ 462.372004] [] ? ret_from_fork+0x3f/0x70 [ 462.372004] [] ? kthread_worker_fn+0x180/0x180 [ 481.191011] rcu-torture: rtc: ffffffff820d6fd0 ver: 2590 tfle: 0 rta: 2591 rtaf: 0 rtf: 2581 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 1388586 onoff: 128/128:132/133 34,3223:11,552 19099:13437 (HZ=1000) barrier: 0/0:0 cbflood: 608 [ 481.193164] rcu-torture: Reader Pipe: 10501340394 14768 0 0 0 0 0 0 0 0 0 [ 481.194038] rcu-torture: Reader Batch: 10185892351 315462811 0 0 0 0 0 0 0 0 0 [ 481.194945] rcu-torture: Free-Block Circulation: 2590 2589 2588 2587 2586 2585 2584 2583 2582 2581 0 [ 481.196067] ??? Writer stall state RTWS_EXP_SYNC(4) g4731 c4730 f0x0 [ 481.196689] rcu_preempt: wait state: 3 ->state: 0x1 [ 481.197181] rcu_sched: wait state: 1 ->state: 0x1 [ 481.197658] rcu_bh: wait state: 1 ->state: 0x1 [ 525.377004] INFO: rcu_preempt detected stalls on CPUs/tasks: [ 525.377004] 3-...: (1 GPs behind) idle=6cf/140000000000000/0 softirq=8341/8345 fqs=69054 [ 525.377004] 8-...: (1 GPs behind) idle=503/140000000000001/0 softirq=9290/9294 fqs=69054 [ 525.377004] 11-...: (1 GPs behind) idle=32f/140000000000001/0 softirq=8320/8323 fqs=69054 [ 525.377004] 12-...: (1 GPs behind) idle=e2f/140000000000000/0 softirq=8014/8017 fqs=69054 [ 525.377004] (detected by 2, t=210021 jiffies, g=4731, c=4730, q=2) [ 525.377004] Task dump for CPU 3: [ 525.377004] rcu_torture_rea R running task 14064 782 2 0x00000008 [ 525.377004] 0000000000000a63 ffff88007c5bff58 ffff88007fb6cc00 0000000000000000 [ 525.377004] ffff88007fa75e80 00000000cfc06af0 ffff88007c5bfd08 ffffffff813480d7 [ 525.377004] ffff88007c5bfd30 ffffffff81091faf ffff88007fb6cc00 00000000cfc06af0 [ 525.377004] Call Trace: [ 525.377004] [] ? debug_smp_processor_id+0x17/0x20 [ 525.377004] [] ? queued_spin_lock_slowpath+0x6f/0x1a0 [ 525.377004] [] ? do_raw_spin_lock+0x145/0x150 [ 525.377004] [] ? _raw_spin_lock_irqsave+0x1f/0x30 [ 525.377004] [] ? lock_timer_base.isra.23+0x4f/0x70 [ 525.377004] [] ? mod_timer+0x6a/0x200 [ 525.377004] [] ? preempt_schedule+0x30/0x30 [ 525.377004] [] ? rcu_torture_reader+0x2a7/0x2e0 [ 525.377004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 525.377004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 525.377004] [] ? kthread+0xd6/0xf0 [ 525.377004] [] ? kthread_worker_fn+0x180/0x180 [ 525.377004] [] ? ret_from_fork+0x3f/0x70 [ 525.377004] [] ? kthread_worker_fn+0x180/0x180 [ 525.377004] Task dump for CPU 8: [ 525.377004] rcu_torture_rea R running task 14760 789 2 0x00000008 [ 525.377004] ffffffff818af15c ffff88007c0f3ce8 ffff88007cdcbe80 ffff88007c91f080 [ 525.377004] 0000000000000046 0000000000000000 ffff88007c0f4000 0000000000000000 [ 525.377004] 00000047648a43ed 000000000000126f ffffffff820d6eb0 ffff88007c0f3d38 [ 525.377004] Call Trace: [ 525.377004] [] ? __schedule+0x38c/0xb00 [ 525.377004] [] ? preempt_schedule_irq+0x43/0x60 [ 525.377004] [] ? retint_kernel+0x1b/0x1d [ 525.377004] [] ? _cond_resched+0xb/0x20 [ 525.377004] [] ? stutter_wait+0x49/0xc0 [ 525.377004] [] ? rcu_torture_reader+0x11e/0x2e0 [ 525.377004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 525.377004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 525.377004] [] ? kthread+0xd6/0xf0 [ 525.377004] [] ? kthread_worker_fn+0x180/0x180 [ 525.377004] [] ? ret_from_fork+0x3f/0x70 [ 525.377004] [] ? kthread_worker_fn+0x180/0x180 [ 525.377004] Task dump for CPU 11: [ 525.377004] torture_onoff R running task 13416 798 2 0x00000008 [ 525.377004] ffffffff8104a8b5 ffff88007ffdb600 ffff88007fb78f70 0000000000000002 [ 525.377004] 0000000000000000 0000000000000000 ffff88007c6f7be8 ffff88007cafcb00 [ 525.377004] ffff88007c6f7b70 ffffffff8104aa3e ffff88007c6f7bc8 ffffffff8104ac95 [ 525.377004] Call Trace: [ 525.377004] [] ? __bad_area_nosemaphore+0x75/0x1f0 [ 525.377004] [] ? bad_area_nosemaphore+0xe/0x10 [ 525.377004] [] ? __do_page_fault+0x85/0x450 [ 525.377004] [] ? do_page_fault+0xc/0x10 [ 525.377004] [] ? page_fault+0x22/0x30 [ 525.377004] [] ? migrate_timer_list+0x32/0xc0 [ 525.377004] [] ? timer_cpu_notify+0xe4/0x160 [ 525.377004] [] ? notifier_call_chain+0x45/0x70 [ 525.377004] [] ? __raw_notifier_call_chain+0x9/0x10 [ 525.377004] [] ? cpu_notify_nofail+0x1e/0x30 [ 525.377004] [] ? _cpu_down+0x212/0x350 [ 525.377004] [] ? __call_rcu.constprop.74+0x380/0x380 [ 525.377004] [] ? call_rcu_bh+0x20/0x20 [ 525.377004] [] ? __rcu_read_unlock+0x50/0x50 [ 525.377004] [] ? __rcu_read_unlock+0x50/0x50 [ 525.377004] [] ? cpu_down+0x2f/0x50 [ 525.377004] [] ? torture_onoff+0x115/0x380 [ 525.377004] [] ? torture_kthread_stopping+0x70/0x70 [ 525.377004] [] ? kthread+0xd6/0xf0 [ 525.377004] [] ? kthread_worker_fn+0x180/0x180 [ 525.377004] [] ? ret_from_fork+0x3f/0x70 [ 525.377004] [] ? kthread_worker_fn+0x180/0x180 [ 525.377004] Task dump for CPU 12: [ 525.377004] rcu_torture_rea R running task 14064 786 2 0x00000008 [ 525.377004] 0000000000000742 ffff88007c0dff58 ffff88007c0dfd20 ffffffff813311f5 [ 525.377004] 000000000000062f 0000000f7fa2cc00 ffff88007fa2cc00 00000000cfc06af0 [ 525.377004] 0000000000000001 00000000cfc06af0 ffff88007fa2cc00 00000000cfc06af0 [ 525.377004] Call Trace: [ 525.377004] [] ? nmi_trigger_all_cpu_backtrace+0x1b5/0x270 [ 525.377004] [] ? do_raw_spin_lock+0x145/0x150 [ 525.377004] [] ? _raw_spin_lock_irqsave+0x1f/0x30 [ 525.377004] [] ? lock_timer_base.isra.23+0x4f/0x70 [ 525.377004] [] ? mod_timer+0x6a/0x200 [ 525.377004] [] ? preempt_schedule+0x30/0x30 [ 525.377004] [] ? rcu_torture_reader+0x2a7/0x2e0 [ 525.377004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 525.377004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 525.377004] [] ? kthread+0xd6/0xf0 [ 525.377004] [] ? kthread_worker_fn+0x180/0x180 [ 525.377004] [] ? ret_from_fork+0x3f/0x70 [ 525.377004] [] ? kthread_worker_fn+0x180/0x180 [ 541.198012] rcu-torture: rtc: ffffffff820d6fd0 ver: 2590 tfle: 0 rta: 2591 rtaf: 0 rtf: 2581 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 1507834 onoff: 128/128:132/133 34,3223:11,552 19099:13437 (HZ=1000) barrier: 0/0:0 cbflood: 608 [ 541.200373] rcu-torture: Reader Pipe: 11417029944 14768 0 0 0 0 0 0 0 0 0 [ 541.201326] rcu-torture: Reader Batch: 11101581901 315462811 0 0 0 0 0 0 0 0 0 [ 541.202335] rcu-torture: Free-Block Circulation: 2590 2589 2588 2587 2586 2585 2584 2583 2582 2581 0 [ 541.203542] ??? Writer stall state RTWS_EXP_SYNC(4) g4731 c4730 f0x0 [ 541.204243] rcu_preempt: wait state: 3 ->state: 0x1 [ 541.204777] rcu_sched: wait state: 1 ->state: 0x1 [ 541.205309] rcu_bh: wait state: 1 ->state: 0x1 [ 588.382004] INFO: rcu_preempt detected stalls on CPUs/tasks: [ 588.382004] 3-...: (1 GPs behind) idle=6cf/140000000000000/0 softirq=8341/8345 fqs=90027 [ 588.382004] 8-...: (1 GPs behind) idle=503/140000000000001/0 softirq=9290/9294 fqs=90027 [ 588.382004] 11-...: (1 GPs behind) idle=32f/140000000000001/0 softirq=8320/8323 fqs=90027 [ 588.382004] 12-...: (1 GPs behind) idle=e2f/140000000000000/0 softirq=8014/8017 fqs=90027 [ 588.382004] (detected by 2, t=273026 jiffies, g=4731, c=4730, q=6) [ 588.382004] Task dump for CPU 3: [ 588.382004] rcu_torture_rea R running task 14064 782 2 0x00000008 [ 588.382004] 0000000000000a63 ffff88007c5bff58 ffff88007fb6cc00 0000000000000000 [ 588.382004] ffff88007fa75e80 00000000cfc06af0 ffff88007c5bfd08 ffffffff813480d7 [ 588.382004] ffff88007c5bfd30 ffffffff81091faf ffff88007fb6cc00 00000000cfc06af0 [ 588.382004] Call Trace: [ 588.382004] [] ? debug_smp_processor_id+0x17/0x20 [ 588.382004] [] ? queued_spin_lock_slowpath+0x6f/0x1a0 [ 588.382004] [] ? do_raw_spin_lock+0x145/0x150 [ 588.382004] [] ? _raw_spin_lock_irqsave+0x1f/0x30 [ 588.382004] [] ? lock_timer_base.isra.23+0x4f/0x70 [ 588.382004] [] ? mod_timer+0x6a/0x200 [ 588.382004] [] ? preempt_schedule+0x30/0x30 [ 588.382004] [] ? rcu_torture_reader+0x2a7/0x2e0 [ 588.382004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 588.382004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 588.382004] [] ? kthread+0xd6/0xf0 [ 588.382004] [] ? kthread_worker_fn+0x180/0x180 [ 588.382004] [] ? ret_from_fork+0x3f/0x70 [ 588.382004] [] ? kthread_worker_fn+0x180/0x180 [ 588.382004] Task dump for CPU 8: [ 588.382004] rcu_torture_rea R running task 14760 789 2 0x00000008 [ 588.382004] ffffffff818af15c ffff88007c0f3ce8 ffff88007cdcbe80 ffff88007c91f080 [ 588.382004] 0000000000000046 0000000000000000 ffff88007c0f4000 0000000000000000 [ 588.382004] 00000047648a43ed 000000000000126f ffffffff820d6eb0 ffff88007c0f3d38 [ 588.382004] Call Trace: [ 588.382004] [] ? __schedule+0x38c/0xb00 [ 588.382004] [] ? preempt_schedule_irq+0x43/0x60 [ 588.382004] [] ? retint_kernel+0x1b/0x1d [ 588.382004] [] ? _cond_resched+0xb/0x20 [ 588.382004] [] ? stutter_wait+0x49/0xc0 [ 588.382004] [] ? rcu_torture_reader+0x11e/0x2e0 [ 588.382004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 588.382004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 588.382004] [] ? kthread+0xd6/0xf0 [ 588.382004] [] ? kthread_worker_fn+0x180/0x180 [ 588.382004] [] ? ret_from_fork+0x3f/0x70 [ 588.382004] [] ? kthread_worker_fn+0x180/0x180 [ 588.382004] Task dump for CPU 11: [ 588.382004] torture_onoff R running task 13416 798 2 0x00000008 [ 588.382004] ffffffff8104a8b5 ffff88007ffdb600 ffff88007fb78f70 0000000000000002 [ 588.382004] 0000000000000000 0000000000000000 ffff88007c6f7be8 ffff88007cafcb00 [ 588.382004] ffff88007c6f7b70 ffffffff8104aa3e ffff88007c6f7bc8 ffffffff8104ac95 [ 588.382004] Call Trace: [ 588.382004] [] ? __bad_area_nosemaphore+0x75/0x1f0 [ 588.382004] [] ? bad_area_nosemaphore+0xe/0x10 [ 588.382004] [] ? __do_page_fault+0x85/0x450 [ 588.382004] [] ? do_page_fault+0xc/0x10 [ 588.382004] [] ? page_fault+0x22/0x30 [ 588.382004] [] ? migrate_timer_list+0x32/0xc0 [ 588.382004] [] ? timer_cpu_notify+0xe4/0x160 [ 588.382004] [] ? notifier_call_chain+0x45/0x70 [ 588.382004] [] ? __raw_notifier_call_chain+0x9/0x10 [ 588.382004] [] ? cpu_notify_nofail+0x1e/0x30 [ 588.382004] [] ? _cpu_down+0x212/0x350 [ 588.382004] [] ? __call_rcu.constprop.74+0x380/0x380 [ 588.382004] [] ? call_rcu_bh+0x20/0x20 [ 588.382004] [] ? __rcu_read_unlock+0x50/0x50 [ 588.382004] [] ? __rcu_read_unlock+0x50/0x50 [ 588.382004] [] ? cpu_down+0x2f/0x50 [ 588.382004] [] ? torture_onoff+0x115/0x380 [ 588.382004] [] ? torture_kthread_stopping+0x70/0x70 [ 588.382004] [] ? kthread+0xd6/0xf0 [ 588.382004] [] ? kthread_worker_fn+0x180/0x180 [ 588.382004] [] ? ret_from_fork+0x3f/0x70 [ 588.382004] [] ? kthread_worker_fn+0x180/0x180 [ 588.382004] Task dump for CPU 12: [ 588.382004] rcu_torture_rea R running task 14064 786 2 0x00000008 [ 588.382004] 0000000000000742 ffff88007c0dff58 ffff88007c0dfd20 ffffffff813311f5 [ 588.382004] 000000000000062f 0000000f7fa2cc00 ffff88007fa2cc00 00000000cfc06af0 [ 588.382004] 0000000000000001 00000000cfc06af0 ffff88007fa2cc00 00000000cfc06af0 [ 588.382004] Call Trace: [ 588.382004] [] ? nmi_trigger_all_cpu_backtrace+0x1b5/0x270 [ 588.382004] [] ? do_raw_spin_lock+0x145/0x150 [ 588.382004] [] ? _raw_spin_lock_irqsave+0x1f/0x30 [ 588.382004] [] ? lock_timer_base.isra.23+0x4f/0x70 [ 588.382004] [] ? mod_timer+0x6a/0x200 [ 588.382004] [] ? preempt_schedule+0x30/0x30 [ 588.382004] [] ? rcu_torture_reader+0x2a7/0x2e0 [ 588.382004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 588.382004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 588.382004] [] ? kthread+0xd6/0xf0 [ 588.382004] [] ? kthread_worker_fn+0x180/0x180 [ 588.382004] [] ? ret_from_fork+0x3f/0x70 [ 588.382004] [] ? kthread_worker_fn+0x180/0x180 [ 601.205012] rcu-torture: rtc: ffffffff820d6fd0 ver: 2590 tfle: 0 rta: 2591 rtaf: 0 rtf: 2581 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 1628388 onoff: 128/128:132/133 34,3223:11,552 19099:13437 (HZ=1000) barrier: 0/0:0 cbflood: 608 [ 601.207374] rcu-torture: Reader Pipe: 12328853039 14768 0 0 0 0 0 0 0 0 0 [ 601.208335] rcu-torture: Reader Batch: 12013404996 315462811 0 0 0 0 0 0 0 0 0 [ 601.209353] rcu-torture: Free-Block Circulation: 2590 2589 2588 2587 2586 2585 2584 2583 2582 2581 0 [ 601.210556] ??? Writer stall state RTWS_EXP_SYNC(4) g4731 c4730 f0x0 [ 601.211259] rcu_preempt: wait state: 3 ->state: 0x1 [ 601.211796] rcu_sched: wait state: 1 ->state: 0x1 [ 601.212335] rcu_bh: wait state: 1 ->state: 0x1 [ 651.387004] INFO: rcu_preempt detected stalls on CPUs/tasks: [ 651.387004] 3-...: (1 GPs behind) idle=6cf/140000000000000/0 softirq=8341/8345 fqs=111003 [ 651.387004] 8-...: (1 GPs behind) idle=503/140000000000001/0 softirq=9290/9294 fqs=111003 [ 651.387004] 11-...: (1 GPs behind) idle=32f/140000000000001/0 softirq=8320/8323 fqs=111004 [ 651.387004] 12-...: (1 GPs behind) idle=e2f/140000000000000/0 softirq=8014/8017 fqs=111004 [ 651.387004] (detected by 13, t=336031 jiffies, g=4731, c=4730, q=10) [ 651.387004] Task dump for CPU 3: [ 651.387004] rcu_torture_rea R running task 14064 782 2 0x00000008 [ 651.387004] 0000000000000a63 ffff88007c5bff58 ffff88007fb6cc00 0000000000000000 [ 651.387004] ffff88007fa75e80 00000000cfc06af0 ffff88007c5bfd08 ffffffff813480d7 [ 651.387004] ffff88007c5bfd30 ffffffff81091faf ffff88007fb6cc00 00000000cfc06af0 [ 651.387004] Call Trace: [ 651.387004] [] ? debug_smp_processor_id+0x17/0x20 [ 651.387004] [] ? queued_spin_lock_slowpath+0x6f/0x1a0 [ 651.387004] [] ? do_raw_spin_lock+0x145/0x150 [ 651.387004] [] ? _raw_spin_lock_irqsave+0x1f/0x30 [ 651.387004] [] ? lock_timer_base.isra.23+0x4f/0x70 [ 651.387004] [] ? mod_timer+0x6a/0x200 [ 651.387004] [] ? preempt_schedule+0x30/0x30 [ 651.387004] [] ? rcu_torture_reader+0x2a7/0x2e0 [ 651.387004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 651.387004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 651.387004] [] ? kthread+0xd6/0xf0 [ 651.387004] [] ? kthread_worker_fn+0x180/0x180 [ 651.387004] [] ? ret_from_fork+0x3f/0x70 [ 651.387004] [] ? kthread_worker_fn+0x180/0x180 [ 651.387004] Task dump for CPU 8: [ 651.387004] rcu_torture_rea R running task 14760 789 2 0x00000008 [ 651.387004] ffffffff818af15c ffff88007c0f3ce8 ffff88007cdcbe80 ffff88007c91f080 [ 651.387004] 0000000000000046 0000000000000000 ffff88007c0f4000 0000000000000000 [ 651.387004] 00000047648a43ed 000000000000126f ffffffff820d6eb0 ffff88007c0f3d38 [ 651.387004] Call Trace: [ 651.387004] [] ? __schedule+0x38c/0xb00 [ 651.387004] [] ? preempt_schedule_irq+0x43/0x60 [ 651.387004] [] ? retint_kernel+0x1b/0x1d [ 651.387004] [] ? _cond_resched+0xb/0x20 [ 651.387004] [] ? stutter_wait+0x49/0xc0 [ 651.387004] [] ? rcu_torture_reader+0x11e/0x2e0 [ 651.387004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 651.387004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 651.387004] [] ? kthread+0xd6/0xf0 [ 651.387004] [] ? kthread_worker_fn+0x180/0x180 [ 651.387004] [] ? ret_from_fork+0x3f/0x70 [ 651.387004] [] ? kthread_worker_fn+0x180/0x180 [ 651.387004] Task dump for CPU 11: [ 651.387004] torture_onoff R running task 13416 798 2 0x00000008 [ 651.387004] ffffffff8104a8b5 ffff88007ffdb600 ffff88007fb78f70 0000000000000002 [ 651.387004] 0000000000000000 0000000000000000 ffff88007c6f7be8 ffff88007cafcb00 [ 651.387004] ffff88007c6f7b70 ffffffff8104aa3e ffff88007c6f7bc8 ffffffff8104ac95 [ 651.387004] Call Trace: [ 651.387004] [] ? __bad_area_nosemaphore+0x75/0x1f0 [ 651.387004] [] ? bad_area_nosemaphore+0xe/0x10 [ 651.387004] [] ? __do_page_fault+0x85/0x450 [ 651.387004] [] ? do_page_fault+0xc/0x10 [ 651.387004] [] ? page_fault+0x22/0x30 [ 651.387004] [] ? migrate_timer_list+0x32/0xc0 [ 651.387004] [] ? timer_cpu_notify+0xe4/0x160 [ 651.387004] [] ? notifier_call_chain+0x45/0x70 [ 651.387004] [] ? __raw_notifier_call_chain+0x9/0x10 [ 651.387004] [] ? cpu_notify_nofail+0x1e/0x30 [ 651.387004] [] ? _cpu_down+0x212/0x350 [ 651.387004] [] ? __call_rcu.constprop.74+0x380/0x380 [ 651.387004] [] ? call_rcu_bh+0x20/0x20 [ 651.387004] [] ? __rcu_read_unlock+0x50/0x50 [ 651.387004] [] ? __rcu_read_unlock+0x50/0x50 [ 651.387004] [] ? cpu_down+0x2f/0x50 [ 651.387004] [] ? torture_onoff+0x115/0x380 [ 651.387004] [] ? torture_kthread_stopping+0x70/0x70 [ 651.387004] [] ? kthread+0xd6/0xf0 [ 651.387004] [] ? kthread_worker_fn+0x180/0x180 [ 651.387004] [] ? ret_from_fork+0x3f/0x70 [ 651.387004] [] ? kthread_worker_fn+0x180/0x180 [ 651.387004] Task dump for CPU 12: [ 651.387004] rcu_torture_rea R running task 14064 786 2 0x00000008 [ 651.387004] 0000000000000742 ffff88007c0dff58 ffff88007c0dfd20 ffffffff813311f5 [ 651.387004] 000000000000062f 0000000f7fa2cc00 ffff88007fa2cc00 00000000cfc06af0 [ 651.387004] 0000000000000001 00000000cfc06af0 ffff88007fa2cc00 00000000cfc06af0 [ 651.387004] Call Trace: [ 651.387004] [] ? nmi_trigger_all_cpu_backtrace+0x1b5/0x270 [ 651.387004] [] ? do_raw_spin_lock+0x145/0x150 [ 651.387004] [] ? _raw_spin_lock_irqsave+0x1f/0x30 [ 651.387004] [] ? lock_timer_base.isra.23+0x4f/0x70 [ 651.387004] [] ? mod_timer+0x6a/0x200 [ 651.387004] [] ? preempt_schedule+0x30/0x30 [ 651.387004] [] ? rcu_torture_reader+0x2a7/0x2e0 [ 651.387004] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 651.387004] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 651.387004] [] ? kthread+0xd6/0xf0 [ 651.387004] [] ? kthread_worker_fn+0x180/0x180 [ 651.387004] [] ? ret_from_fork+0x3f/0x70 [ 651.387004] [] ? kthread_worker_fn+0x180/0x180 [ 661.212012] rcu-torture: rtc: ffffffff820d6fd0 ver: 2590 tfle: 0 rta: 2591 rtaf: 0 rtf: 2581 rtmbe: 0 rtbke: 0 rtbre: 0 rtbf: 0 rtb: 0 nt: 1750558 onoff: 128/128:132/133 34,3223:11,552 19099:13437 (HZ=1000) barrier: 0/0:0 cbflood: 608 [ 661.214362] rcu-torture: Reader Pipe: 13245634209 14768 0 0 0 0 0 0 0 0 0 [ 661.215321] rcu-torture: Reader Batch: 12930186166 315462811 0 0 0 0 0 0 0 0 0 [ 661.216318] rcu-torture: Free-Block Circulation: 2590 2589 2588 2587 2586 2585 2584 2583 2582 2581 0 [ 661.217515] ??? Writer stall state RTWS_EXP_SYNC(4) g4731 c4730 f0x0 [ 661.218213] rcu_preempt: wait state: 3 ->state: 0x1 [ 661.218764] rcu_sched: wait state: 1 ->state: 0x1 [ 661.219294] rcu_bh: wait state: 1 ->state: 0x1 [ 714.392003] INFO: rcu_preempt detected stalls on CPUs/tasks: [ 714.392003] 3-...: (1 GPs behind) idle=6cf/140000000000000/0 softirq=8341/8345 fqs=131969 [ 714.392003] 8-...: (1 GPs behind) idle=503/140000000000001/0 softirq=9290/9294 fqs=131969 [ 714.392003] 11-...: (1 GPs behind) idle=32f/140000000000001/0 softirq=8320/8323 fqs=131969 [ 714.392003] 12-...: (1 GPs behind) idle=e2f/140000000000000/0 softirq=8014/8017 fqs=131969 [ 714.392003] (detected by 0, t=399032 jiffies, g=4731, c=4730, q=10) [ 714.392003] Task dump for CPU 3: [ 714.392003] rcu_torture_rea R running task 14064 782 2 0x00000008 [ 714.392003] 0000000000000a63 ffff88007c5bff58 ffff88007fb6cc00 0000000000000000 [ 714.392003] ffff88007fa75e80 00000000cfc06af0 ffff88007c5bfd08 ffffffff813480d7 [ 714.392003] ffff88007c5bfd30 ffffffff81091faf ffff88007fb6cc00 00000000cfc06af0 [ 714.392003] Call Trace: [ 714.392003] [] ? debug_smp_processor_id+0x17/0x20 [ 714.392003] [] ? queued_spin_lock_slowpath+0x6f/0x1a0 [ 714.392003] [] ? do_raw_spin_lock+0x145/0x150 [ 714.392003] [] ? _raw_spin_lock_irqsave+0x1f/0x30 [ 714.392003] [] ? lock_timer_base.isra.23+0x4f/0x70 [ 714.392003] [] ? mod_timer+0x6a/0x200 [ 714.392003] [] ? preempt_schedule+0x30/0x30 [ 714.392003] [] ? rcu_torture_reader+0x2a7/0x2e0 [ 714.392003] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 714.392003] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 714.392003] [] ? kthread+0xd6/0xf0 [ 714.392003] [] ? kthread_worker_fn+0x180/0x180 [ 714.392003] [] ? ret_from_fork+0x3f/0x70 [ 714.392003] [] ? kthread_worker_fn+0x180/0x180 [ 714.392003] Task dump for CPU 8: [ 714.392003] rcu_torture_rea R running task 14760 789 2 0x00000008 [ 714.392003] ffffffff818af15c ffff88007c0f3ce8 ffff88007cdcbe80 ffff88007c91f080 [ 714.392003] 0000000000000046 0000000000000000 ffff88007c0f4000 0000000000000000 [ 714.392003] 00000047648a43ed 000000000000126f ffffffff820d6eb0 ffff88007c0f3d38 [ 714.392003] Call Trace: [ 714.392003] [] ? __schedule+0x38c/0xb00 [ 714.392003] [] ? preempt_schedule_irq+0x43/0x60 [ 714.392003] [] ? retint_kernel+0x1b/0x1d [ 714.392003] [] ? _cond_resched+0xb/0x20 [ 714.392003] [] ? stutter_wait+0x49/0xc0 [ 714.392003] [] ? rcu_torture_reader+0x11e/0x2e0 [ 714.392003] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 714.392003] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 714.392003] [] ? kthread+0xd6/0xf0 [ 714.392003] [] ? kthread_worker_fn+0x180/0x180 [ 714.392003] [] ? ret_from_fork+0x3f/0x70 [ 714.392003] [] ? kthread_worker_fn+0x180/0x180 [ 714.392003] Task dump for CPU 11: [ 714.392003] torture_onoff R running task 13416 798 2 0x00000008 [ 714.392003] ffffffff8104a8b5 ffff88007ffdb600 ffff88007fb78f70 0000000000000002 [ 714.392003] 0000000000000000 0000000000000000 ffff88007c6f7be8 ffff88007cafcb00 [ 714.392003] ffff88007c6f7b70 ffffffff8104aa3e ffff88007c6f7bc8 ffffffff8104ac95 [ 714.392003] Call Trace: [ 714.392003] [] ? __bad_area_nosemaphore+0x75/0x1f0 [ 714.392003] [] ? bad_area_nosemaphore+0xe/0x10 [ 714.392003] [] ? __do_page_fault+0x85/0x450 [ 714.392003] [] ? do_page_fault+0xc/0x10 [ 714.392003] [] ? page_fault+0x22/0x30 [ 714.392003] [] ? migrate_timer_list+0x32/0xc0 [ 714.392003] [] ? timer_cpu_notify+0xe4/0x160 [ 714.392003] [] ? notifier_call_chain+0x45/0x70 [ 714.392003] [] ? __raw_notifier_call_chain+0x9/0x10 [ 714.392003] [] ? cpu_notify_nofail+0x1e/0x30 [ 714.392003] [] ? _cpu_down+0x212/0x350 [ 714.392003] [] ? __call_rcu.constprop.74+0x380/0x380 [ 714.392003] [] ? call_rcu_bh+0x20/0x20 [ 714.392003] [] ? __rcu_read_unlock+0x50/0x50 [ 714.392003] [] ? __rcu_read_unlock+0x50/0x50 [ 714.392003] [] ? cpu_down+0x2f/0x50 [ 714.392003] [] ? torture_onoff+0x115/0x380 [ 714.392003] [] ? torture_kthread_stopping+0x70/0x70 [ 714.392003] [] ? kthread+0xd6/0xf0 [ 714.392003] [] ? kthread_worker_fn+0x180/0x180 [ 714.392003] [] ? ret_from_fork+0x3f/0x70 [ 714.392003] [] ? kthread_worker_fn+0x180/0x180 [ 714.392003] Task dump for CPU 12: [ 714.392003] rcu_torture_rea R running task 14064 786 2 0x00000008 [ 714.392003] 0000000000000742 ffff88007c0dff58 ffff88007c0dfd20 ffffffff813311f5 [ 714.392003] 000000000000062f 0000000f7fa2cc00 ffff88007fa2cc00 00000000cfc06af0 [ 714.392003] 0000000000000001 00000000cfc06af0 ffff88007fa2cc00 00000000cfc06af0 [ 714.392003] Call Trace: [ 714.392003] [] ? nmi_trigger_all_cpu_backtrace+0x1b5/0x270 [ 714.392003] [] ? do_raw_spin_lock+0x145/0x150 [ 714.392003] [] ? _raw_spin_lock_irqsave+0x1f/0x30 [ 714.392003] [] ? lock_timer_base.isra.23+0x4f/0x70 [ 714.392003] [] ? mod_timer+0x6a/0x200 [ 714.392003] [] ? preempt_schedule+0x30/0x30 [ 714.392003] [] ? rcu_torture_reader+0x2a7/0x2e0 [ 714.392003] [] ? rcu_torture_reader+0x2e0/0x2e0 [ 714.392003] [] ? rcutorture_trace_dump.part.7+0x20/0x20 [ 714.392003] [] ? kthread+0xd6/0xf0 [ 714.392003] [] ? kthread_worker_fn+0x180/0x180 [ 714.392003] [] ? ret_from_fork+0x3f/0x70 [ 714.392003] [] ? kthread_worker_fn+0x180/0x180