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Date:	Fri, 7 Mar 2014 17:15:15 +0800
From:	Fengguang Wu <fengguang.wu@...el.com>
To:	Stefani Seibold <stefani@...bold.net>
Cc:	"H. Peter Anvin" <hpa@...ux.intel.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [x86, vdso]  BUG: unable to handle kernel paging request at
 d34bd000

Hi Stefani,

On Fri, Mar 07, 2014 at 09:47:14AM +0100, Stefani Seibold wrote:
> Hi Fengguang,
> 
> i was now able to bring up the kernel on my KVM with some minior
> changes. I kick out the PARIDE, switched to IDE and activated the VT
> support. With this modifications the kernel boot and i get no BUG,
> everything is fine!
> 
> So i can not reproduce the bug and i want ask you to check the attached
> kernel config. If this also works for you the problem is maybe located
> in the environment, f.e. gcc.

I'm using gcc 4.8.1, as you can see from the 2nd line of the below dmesg.
I can reproduce it reliably - see the screen dump below. You can find
the reproduce script at the end of this email.

wfg@bee /kernel/i386-randconfig-nh0-03070222/d478a960edf1ea61ca31a07a48a8771f043dba78% kvm-0day.sh vmlinuz-3.14.0-rc5-03765-gd478a96
early console in setup code
[    0.000000] Linux version 3.14.0-rc5-03765-gd478a96 (kbuild@...4) (gcc version 4.8.1 (Debian 4.8.1-8) ) #2 SMP PREEMPT Fri Mar 7 03:16:44 CST 2014
[    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 0x0000000000100000-0x000000000fffdfff] usable
[    0.000000] BIOS-e820: [mem 0x000000000fffe000-0x000000000fffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
[    0.000000] debug: ignoring loglevel setting.
[    0.000000] NX (Execute Disable) protection: active
[    0.000000] Hypervisor detected: KVM
[    0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
[    0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable
[    0.000000] e820: last_pfn = 0xfffe max_arch_pfn = 0x1000000
[    0.000000] MTRR default type: write-back
[    0.000000] MTRR fixed ranges enabled:
[    0.000000]   00000-9FFFF write-back
[    0.000000]   A0000-BFFFF uncachable
[    0.000000]   C0000-FFFFF write-protect
[    0.000000] MTRR variable ranges enabled:
[    0.000000]   0 base 0080000000 mask FF80000000 uncachable
[    0.000000]   1 disabled
[    0.000000]   2 disabled
[    0.000000]   3 disabled
[    0.000000]   4 disabled
[    0.000000]   5 disabled
[    0.000000]   6 disabled
[    0.000000]   7 disabled
[    0.000000] initial memory mapped: [mem 0x00000000-0x023fffff]
[    0.000000] Base memory trampoline at [c009b000] 9b000 size 16384
[    0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff]
[    0.000000]  [mem 0x00000000-0x000fffff] page 4k
[    0.000000] init_memory_mapping: [mem 0x0fa00000-0x0fbfffff]
[    0.000000]  [mem 0x0fa00000-0x0fbfffff] page 4k
[    0.000000] BRK [0x01e02000, 0x01e02fff] PGTABLE
[    0.000000] init_memory_mapping: [mem 0x0c000000-0x0f9fffff]
[    0.000000]  [mem 0x0c000000-0x0f9fffff] page 4k
[    0.000000] BRK [0x01e03000, 0x01e03fff] PGTABLE
[    0.000000] BRK [0x01e04000, 0x01e04fff] PGTABLE
[    0.000000] BRK [0x01e05000, 0x01e05fff] PGTABLE
[    0.000000] BRK [0x01e06000, 0x01e06fff] PGTABLE
[    0.000000] BRK [0x01e07000, 0x01e07fff] PGTABLE
[    0.000000] init_memory_mapping: [mem 0x00100000-0x0bffffff]
[    0.000000]  [mem 0x00100000-0x0bffffff] page 4k
[    0.000000] init_memory_mapping: [mem 0x0fc00000-0x0fffdfff]
[    0.000000]  [mem 0x0fc00000-0x0fffdfff] page 4k
[    0.000000] RAMDISK: [mem 0x0fce6000-0x0ffeffff]
[    0.000000] ACPI: RSDP 0x000F16B0 000014 (v00 BOCHS )
[    0.000000] ACPI: RSDT 0x0FFFE3F0 000034 (v01 BOCHS  BXPCRSDT 00000001 BXPC 00000001)
[    0.000000] ACPI: FACP 0x0FFFFF80 000074 (v01 BOCHS  BXPCFACP 00000001 BXPC 00000001)
[    0.000000] ACPI: DSDT 0x0FFFE430 001137 (v01 BXPC   BXDSDT   00000001 INTL 20100528)
[    0.000000] ACPI: FACS 0x0FFFFF40 000040
[    0.000000] ACPI: SSDT 0x0FFFF6A0 000899 (v01 BOCHS  BXPCSSDT 00000001 BXPC 00000001)
[    0.000000] ACPI: APIC 0x0FFFF5B0 000080 (v01 BOCHS  BXPCAPIC 00000001 BXPC 00000001)
[    0.000000] ACPI: HPET 0x0FFFF570 000038 (v01 BOCHS  BXPCHPET 00000001 BXPC 00000001)
[    0.000000] ACPI: Local APIC address 0xfee00000
[    0.000000] mapped APIC to         ffff9000 (        fee00000)
[    0.000000] 255MB LOWMEM available.
[    0.000000]   mapped low ram: 0 - 0fffe000
[    0.000000]   low ram: 0 - 0fffe000
[    0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00
[    0.000000] kvm-clock: cpu 0, msr 0:fffd001, primary cpu clock
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x00001000-0x00ffffff]
[    0.000000]   Normal   [mem 0x01000000-0x0fffdfff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x00001000-0x0009efff]
[    0.000000]   node   0: [mem 0x00100000-0x0fffdfff]
[    0.000000] On node 0 totalpages: 65436
[    0.000000] free_area_init_node: node 0, pgdat c17e5120, node_mem_map cf958024
[    0.000000]   DMA zone: 36 pages used for memmap
[    0.000000]   DMA zone: 0 pages reserved
[    0.000000]   DMA zone: 3998 pages, LIFO batch:0
[    0.000000]   Normal zone: 540 pages used for memmap
[    0.000000]   Normal zone: 61438 pages, LIFO batch:15
[    0.000000] Using APIC driver default
[    0.000000] ACPI: PM-Timer IO Port: 0xb008
[    0.000000] ACPI: Local APIC address 0xfee00000
[    0.000000] mapped APIC to         ffff9000 (        fee00000)
[    0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[    0.000000] ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0])
[    0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 00, APIC ID 0, APIC INT 02
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[    0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 05, APIC ID 0, APIC INT 05
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[    0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 09, APIC ID 0, APIC INT 09
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[    0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 0a, APIC ID 0, APIC INT 0a
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[    0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 0b, APIC ID 0, APIC INT 0b
[    0.000000] ACPI: IRQ0 used by override.
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 01, APIC ID 0, APIC INT 01
[    0.000000] ACPI: IRQ2 used by override.
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 03, APIC ID 0, APIC INT 03
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 04, APIC ID 0, APIC INT 04
[    0.000000] ACPI: IRQ5 used by override.
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 06, APIC ID 0, APIC INT 06
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 07, APIC ID 0, APIC INT 07
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 08, APIC ID 0, APIC INT 08
[    0.000000] ACPI: IRQ9 used by override.
[    0.000000] ACPI: IRQ10 used by override.
[    0.000000] ACPI: IRQ11 used by override.
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0c, APIC ID 0, APIC INT 0c
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0d, APIC ID 0, APIC INT 0d
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0e, APIC ID 0, APIC INT 0e
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0f, APIC ID 0, APIC INT 0f
[    0.000000] Using ACPI (MADT) for SMP configuration information
[    0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[    0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs
[    0.000000] mapped IOAPIC to ffff8000 (fec00000)
[    0.000000] nr_irqs_gsi: 40
[    0.000000] e820: [mem 0x10000000-0xfeffbfff] available for PCI devices
[    0.000000] Booting paravirtualized kernel on KVM
[    0.000000] setup_percpu: NR_CPUS:32 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:1
[    0.000000] PERCPU: Embedded 17 pages/cpu @cfcc4000 s48368 r0 d21264 u69632
[    0.000000] pcpu-alloc: s48368 r0 d21264 u69632 alloc=17*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1
[    0.000000] KVM setup async PF for cpu 0
[    0.000000] kvm-stealtime: cpu 0, msr fcc6980
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 64860
[    0.000000] Kernel command line: debug sched_debug apic=debug ignore_loglevel earlyprintk=ttyS0,115200 sysrq_always_enabled panic=10 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw
[    0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes)
[    0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
[    0.000000] Initializing CPU#0
[    0.000000] Memory: 241112K/261744K available (5504K kernel code, 558K rwdata, 2224K rodata, 536K init, 5424K bss, 20632K reserved)
[    0.000000] virtual kernel memory layout:
[    0.000000]     fixmap  : 0xffd34000 - 0xfffff000   (2860 kB)
[    0.000000]     vmalloc : 0xd07fe000 - 0xffd32000   ( 757 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xcfffe000   ( 255 MB)
[    0.000000]       .init : 0xc181a000 - 0xc18a0000   ( 536 kB)
[    0.000000]       .data : 0xc15603c2 - 0xc18189a0   (2785 kB)
[    0.000000]       .text : 0xc1000000 - 0xc15603c2   (5504 kB)
[    0.000000] Checking if this processor honours the WP bit even in supervisor mode...Ok.
[    0.000000] Preemptible hierarchical RCU implementation.
[    0.000000]  Dump stacks of tasks blocking RCU-preempt GP.
[    0.000000]  Additional per-CPU info printed with stalls.
[    0.000000]  RCU restricting CPUs from NR_CPUS=32 to nr_cpu_ids=2.
[    0.000000]  Offload RCU callbacks from all CPUs
[    0.000000]  Offload RCU callbacks from CPUs: 0-1.
[    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
[    0.000000] NR_IRQS:2304 nr_irqs:512 16
[    0.000000] CPU 0 irqstacks, hard=cf41c000 soft=cf41e000
[    0.000000] ACPI: Core revision 20140214
[    0.000000] ACPI: All ACPI Tables successfully acquired
[    0.000000] console [ttyS0] enabled
[    0.000000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[    0.000000] ... MAX_LOCKDEP_SUBCLASSES:  8
[    0.000000] ... MAX_LOCK_DEPTH:          48
[    0.000000] ... MAX_LOCKDEP_KEYS:        8191
[    0.000000] ... CLASSHASH_SIZE:          4096
[    0.000000] ... MAX_LOCKDEP_ENTRIES:     16384
[    0.000000] ... MAX_LOCKDEP_CHAINS:      32768
[    0.000000] ... CHAINHASH_SIZE:          16384
[    0.000000]  memory used by lock dependency info: 3567 kB
[    0.000000]  per task-struct memory footprint: 1152 bytes
[    0.000000] ------------------------
[    0.000000] | Locking API testsuite:
[    0.000000] ----------------------------------------------------------------------------
[    0.000000]                                  | spin |wlock |rlock |mutex | wsem | rsem |
[    0.000000]   --------------------------------------------------------------------------
[    0.000000]                      A-A deadlock:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
[    0.000000]                  A-B-B-A deadlock:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
[    0.000000]              A-B-B-C-C-A deadlock:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
[    0.000000]              A-B-C-A-B-C deadlock:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
[    0.000000]          A-B-B-C-C-D-D-A deadlock:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
[    0.000000]          A-B-C-D-B-D-D-A deadlock:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
[    0.000000]          A-B-C-D-B-C-D-A deadlock:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
[    0.000000]                     double unlock:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
[    0.000000]                   initialize held:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
[    0.000000]                  bad unlock order:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
[    0.000000]   --------------------------------------------------------------------------
[    0.000000]               recursive read-lock:             |  ok  |             |  ok  |
[    0.000000]            recursive read-lock #2:             |  ok  |             |  ok  |
[    0.000000]             mixed read-write-lock:             |  ok  |             |  ok  |
[    0.000000]             mixed write-read-lock:             |  ok  |             |  ok  |
[    0.000000]   --------------------------------------------------------------------------
[    0.000000]      hard-irqs-on + irq-safe-A/12:  ok  |  ok  |  ok  |
[    0.000000]      soft-irqs-on + irq-safe-A/12:  ok  |  ok  |  ok  |
[    0.000000]      hard-irqs-on + irq-safe-A/21:  ok  |  ok  |  ok  |
[    0.000000]      soft-irqs-on + irq-safe-A/21:  ok  |  ok  |  ok  |
[    0.000000]        sirq-safe-A => hirqs-on/12:  ok  |  ok  |  ok  |
[    0.000000]        sirq-safe-A => hirqs-on/21:  ok  |  ok  |  ok  |
[    0.000000]          hard-safe-A + irqs-on/12:  ok  |  ok  |  ok  |
[    0.000000]          soft-safe-A + irqs-on/12:  ok  |  ok  |  ok  |
[    0.000000]          hard-safe-A + irqs-on/21:  ok  |  ok  |  ok  |
[    0.000000]          soft-safe-A + irqs-on/21:  ok  |  ok  |  ok  |
[    0.000000]     hard-safe-A + unsafe-B #1/123:  ok  |  ok  |  ok  |
[    0.000000]     soft-safe-A + unsafe-B #1/123:  ok  |  ok  |  ok  |
[    0.000000]     hard-safe-A + unsafe-B #1/132:  ok  |  ok  |  ok  |
[    0.000000]     soft-safe-A + unsafe-B #1/132:  ok  |  ok  |  ok  |
[    0.000000]     hard-safe-A + unsafe-B #1/213:  ok  |  ok  |  ok  |
[    0.000000]     soft-safe-A + unsafe-B #1/213:  ok  |  ok  |  ok  |
[    0.000000]     hard-safe-A + unsafe-B #1/231:  ok  |  ok  |  ok  |
[    0.000000]     soft-safe-A + unsafe-B #1/231:  ok  |  ok  |  ok  |
[    0.000000]     hard-safe-A + unsafe-B #1/312:  ok  |  ok  |  ok  |
[    0.000000]     soft-safe-A + unsafe-B #1/312:  ok  |  ok  |  ok  |
[    0.000000]     hard-safe-A + unsafe-B #1/321:  ok  |  ok  |  ok  |
[    0.000000]     soft-safe-A + unsafe-B #1/321:  ok  |  ok  |  ok  |
[    0.000000]     hard-safe-A + unsafe-B #2/123:  ok  |  ok  |  ok  |
[    0.000000]     soft-safe-A + unsafe-B #2/123:  ok  |  ok  |  ok  |
[    0.000000]     hard-safe-A + unsafe-B #2/132:  ok  |  ok  |  ok  |
[    0.000000]     soft-safe-A + unsafe-B #2/132:  ok  |  ok  |  ok  |
[    0.000000]     hard-safe-A + unsafe-B #2/213:  ok  |  ok  |  ok  |
[    0.000000]     soft-safe-A + unsafe-B #2/213:  ok  |  ok  |  ok  |
[    0.000000]     hard-safe-A + unsafe-B #2/231:  ok  |  ok  |  ok  |
[    0.000000]     soft-safe-A + unsafe-B #2/231:  ok  |  ok  |  ok  |
[    0.000000]     hard-safe-A + unsafe-B #2/312:  ok  |  ok  |  ok  |
[    0.000000]     soft-safe-A + unsafe-B #2/312:  ok  |  ok  |  ok  |
[    0.000000]     hard-safe-A + unsafe-B #2/321:  ok  |  ok  |  ok  |
[    0.000000]     soft-safe-A + unsafe-B #2/321:  ok  |  ok  |  ok  |
[    0.000000]       hard-irq lock-inversion/123:  ok  |  ok  |  ok  |
[    0.000000]       soft-irq lock-inversion/123:  ok  |  ok  |  ok  |
[    0.000000]       hard-irq lock-inversion/132:  ok  |  ok  |  ok  |
[    0.000000]       soft-irq lock-inversion/132:  ok  |  ok  |  ok  |
[    0.000000]       hard-irq lock-inversion/213:  ok  |  ok  |  ok  |
[    0.000000]       soft-irq lock-inversion/213:  ok  |  ok  |  ok  |
[    0.000000]       hard-irq lock-inversion/231:  ok  |  ok  |  ok  |
[    0.000000]       soft-irq lock-inversion/231:  ok  |  ok  |  ok  |
[    0.000000]       hard-irq lock-inversion/312:  ok  |  ok  |  ok  |
[    0.000000]       soft-irq lock-inversion/312:  ok  |  ok  |  ok  |
[    0.000000]       hard-irq lock-inversion/321:  ok  |  ok  |  ok  |
[    0.000000]       soft-irq lock-inversion/321:  ok  |  ok  |  ok  |
[    0.000000]       hard-irq read-recursion/123:  ok  |
[    0.000000]       soft-irq read-recursion/123:  ok  |
[    0.000000]       hard-irq read-recursion/132:  ok  |
[    0.000000]       soft-irq read-recursion/132:  ok  |
[    0.000000]       hard-irq read-recursion/213:  ok  |
[    0.000000]       soft-irq read-recursion/213:  ok  |
[    0.000000]       hard-irq read-recursion/231:  ok  |
[    0.000000]       soft-irq read-recursion/231:  ok  |
[    0.000000]       hard-irq read-recursion/312:  ok  |
[    0.000000]       soft-irq read-recursion/312:  ok  |
[    0.000000]       hard-irq read-recursion/321:  ok  |
[    0.000000]       soft-irq read-recursion/321:  ok  |
[    0.000000]   --------------------------------------------------------------------------
[    0.000000]   | Wound/wait tests |
[    0.000000]   ---------------------
[    0.000000]                   ww api failures:  ok  |  ok  |  ok  |
[    0.000000]                ww contexts mixing:  ok  |  ok  |
[    0.000000]              finishing ww context:  ok  |  ok  |  ok  |  ok  |
[    0.000000]                locking mismatches:  ok  |  ok  |  ok  |
[    0.000000]                  EDEADLK handling:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
[    0.000000]            spinlock nest unlocked:  ok  |
[    0.000000]   -----------------------------------------------------
[    0.000000]                                  |block | try  |context|
[    0.000000]   -----------------------------------------------------
[    0.000000]                           context:  ok  |  ok  |  ok  |
[    0.000000]                               try:  ok  |  ok  |  ok  |
[    0.000000]                             block:  ok  |  ok  |  ok  |
[    0.000000]                          spinlock:  ok  |  ok  |  ok  |
[    0.000000] -------------------------------------------------------
[    0.000000] Good, all 253 testcases passed! |
[    0.000000] ---------------------------------
[    0.000000] hpet clockevent registered
[    0.000000] tsc: Detected 2693.508 MHz processor
[    0.003000] Calibrating delay loop (skipped) preset value.. 5387.01 BogoMIPS (lpj=2693508)
[    0.004014] pid_max: default: 4096 minimum: 301
[    0.006232] Mount-cache hash table entries: 512
[    0.009437] mce: CPU supports 10 MCE banks
[    0.010118] BUG: unable to handle kernel paging request at cf4be000
[    0.011000] IP: [<c182dbca>] sysenter_setup+0x9a/0x2d4
[    0.011000] *pdpt = 00000000018a4001 *pde = 000000000fbea067 *pte = 800000000f4be060
[    0.011000] Oops: 0002 [#1] PREEMPT SMP DEBUG_PAGEALLOC
[    0.011000] Modules linked in:
[    0.011000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.14.0-rc5-03765-gd478a96 #2
[    0.011000] task: c17997c0 ti: c178e000 task.ti: c178e000
[    0.011000] EIP: 0060:[<c182dbca>] EFLAGS: 00210212 CPU: 0
[    0.011000] EIP is at sysenter_setup+0x9a/0x2d4
[    0.011000] EAX: 078bfbfd EBX: cf4bd000 ECX: 00000004 EDX: 00001004
[    0.011000] ESI: c186740c EDI: cf4be000 EBP: c178ff98 ESP: c178ff74
[    0.011000]  DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[    0.011000] CR0: 8005003b CR2: cf4be000 CR3: 018a7000 CR4: 000006f0
[    0.011000] Stack:
[    0.011000]  00200202 c1dbb0f0 00000f61 00000800 80002001 078bfbfd 00000000 00000000
[    0.011000]  c18a8800 c178ffa0 c1821144 c178ffbc c182117d 00000000 c178ffbc 00000000
[    0.011000]  00000000 c18a8800 c178ffec c181ab11 00000101 ffffffff ffffffff c181a549
[    0.011000] Call Trace:
[    0.011000]  [<c1821144>] identify_boot_cpu+0x17/0x28
[    0.011000]  [<c182117d>] check_bugs+0xe/0x160
[    0.011000]  [<c181ab11>] start_kernel+0x401/0x470
[    0.011000]  [<c181a549>] ? repair_env_string+0x51/0x51
[    0.011000]  [<c181a364>] i386_start_kernel+0x12e/0x131
[    0.011000] Code: f6 c4 08 74 12 ba 10 74 86 c1 81 ea 0c 64 86 c1 be 0c 64 86 c1 eb 10 ba 0c 64 86 c1 81 ea 1c 54 86 c1 be 1c 54 86 c1 89 df 89 d1 <f3> a4 89 d8 e8 8b fe ff ff b9 04 00 00 00 ba d6 c2 6e c1 89 d8
[    0.011000] EIP: [<c182dbca>] sysenter_setup+0x9a/0x2d4 SS:ESP 0068:c178ff74
[    0.011000] CR2: 00000000cf4be000
[    0.011000] ---[ end trace db4b7fde7786bb07 ]---
[    0.011000] Kernel panic - not syncing: Fatal exception
[    0.011000] Rebooting in 10 seconds..

wfg@bee /kernel/i386-randconfig-an1-03070605/d478a960edf1ea61ca31a07a48a8771f043dba78% kvm-0day.sh vmlinuz-3.14.0-rc5-03765-gd478a96
early console in setup code
Probing EDD (edd=off to disable)... ok
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 3.14.0-rc5-03765-gd478a96 (kbuild@ant) (gcc version 4.8.1 (Debian 4.8.1-8) ) #4 SMP Fri Mar 7 06:43:04 CST 2014
[    0.000000] KERNEL supported cpus:
[    0.000000]   AMD AuthenticAMD
[    0.000000]   Centaur CentaurHauls
[    0.000000]   UMC UMC UMC UMC
[    0.000000] CPU: vendor_id 'GenuineIntel' unknown, using generic init.
[    0.000000] CPU: Your system may be unstable.
[    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 0x0000000000100000-0x000000000fffdfff] usable
[    0.000000] BIOS-e820: [mem 0x000000000fffe000-0x000000000fffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
[    0.000000] debug: ignoring loglevel setting.
[    0.000000] Notice: NX (Execute Disable) protection cannot be enabled: non-PAE kernel!
[    0.000000] SMBIOS 2.4 present.
[    0.000000] DMI: Bochs Bochs, BIOS Bochs 01/01/2011
[    0.000000] Hypervisor detected: KVM
[    0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
[    0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable
[    0.000000] e820: last_pfn = 0xfffe max_arch_pfn = 0x100000
[    0.000000] MTRR default type: write-back
[    0.000000] MTRR fixed ranges enabled:
[    0.000000]   00000-9FFFF write-back
[    0.000000]   A0000-BFFFF uncachable
[    0.000000]   C0000-FFFFF write-protect
[    0.000000] MTRR variable ranges enabled:
[    0.000000]   0 base 0080000000 mask FF80000000 uncachable
[    0.000000]   1 disabled
[    0.000000]   2 disabled
[    0.000000]   3 disabled
[    0.000000]   4 disabled
[    0.000000]   5 disabled
[    0.000000]   6 disabled
[    0.000000]   7 disabled
[    0.000000] Scan for SMP in [mem 0x00000000-0x000003ff]
[    0.000000] Scan for SMP in [mem 0x0009fc00-0x0009ffff]
[    0.000000] Scan for SMP in [mem 0x000f0000-0x000fffff]
[    0.000000] found SMP MP-table at [mem 0x000f1840-0x000f184f] mapped at [800f1840]
[    0.000000]   mpc: f1850-f193c
[    0.000000] initial memory mapped: [mem 0x00000000-0x02bfffff]
[    0.000000] Base memory trampoline at [8009b000] 9b000 size 16384
[    0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff]
[    0.000000]  [mem 0x00000000-0x000fffff] page 4k
[    0.000000] init_memory_mapping: [mem 0x0f800000-0x0fbfffff]
[    0.000000]  [mem 0x0f800000-0x0fbfffff] page 4k
[    0.000000] BRK [0x027a7000, 0x027a7fff] PGTABLE
[    0.000000] init_memory_mapping: [mem 0x08000000-0x0f7fffff]
[    0.000000]  [mem 0x08000000-0x0f7fffff] page 4k
[    0.000000] BRK [0x027a8000, 0x027a8fff] PGTABLE
[    0.000000] BRK [0x027a9000, 0x027a9fff] PGTABLE
[    0.000000] BRK [0x027aa000, 0x027aafff] PGTABLE
[    0.000000] BRK [0x027ab000, 0x027abfff] PGTABLE
[    0.000000] BRK [0x027ac000, 0x027acfff] PGTABLE
[    0.000000] init_memory_mapping: [mem 0x00100000-0x07ffffff]
[    0.000000]  [mem 0x00100000-0x07ffffff] page 4k
[    0.000000] init_memory_mapping: [mem 0x0fc00000-0x0fffdfff]
[    0.000000]  [mem 0x0fc00000-0x0fffdfff] page 4k
[    0.000000] RAMDISK: [mem 0x0fce6000-0x0ffeffff]
[    0.000000] ACPI: RSDP 0x000F16B0 000014 (v00 BOCHS )
[    0.000000] ACPI: RSDT 0x0FFFE3F0 000034 (v01 BOCHS  BXPCRSDT 00000001 BXPC 00000001)
[    0.000000] ACPI: FACP 0x0FFFFF80 000074 (v01 BOCHS  BXPCFACP 00000001 BXPC 00000001)
[    0.000000] ACPI: DSDT 0x0FFFE430 001137 (v01 BXPC   BXDSDT   00000001 INTL 20100528)
[    0.000000] ACPI: FACS 0x0FFFFF40 000040
[    0.000000] ACPI: SSDT 0x0FFFF6A0 000899 (v01 BOCHS  BXPCSSDT 00000001 BXPC 00000001)
[    0.000000] ACPI: APIC 0x0FFFF5B0 000080 (v01 BOCHS  BXPCAPIC 00000001 BXPC 00000001)
[    0.000000] ACPI: HPET 0x0FFFF570 000038 (v01 BOCHS  BXPCHPET 00000001 BXPC 00000001)
[    0.000000] ACPI: Local APIC address 0xfee00000
[    0.000000] mapped APIC to         ffff9000 (        fee00000)
[    0.000000] 0MB HIGHMEM available.
[    0.000000] 255MB LOWMEM available.
[    0.000000]   mapped low ram: 0 - 0fffe000
[    0.000000]   low ram: 0 - 0fffe000
[    0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00
[    0.000000] kvm-clock: cpu 0, msr 0:fffb001, primary cpu clock
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x00001000-0x00ffffff]
[    0.000000]   Normal   [mem 0x01000000-0x0fffdfff]
[    0.000000]   HighMem  empty
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x00001000-0x0009efff]
[    0.000000]   node   0: [mem 0x00100000-0x0fffdfff]
[    0.000000] On node 0 totalpages: 65436
[    0.000000] free_area_init_node: node 0, pgdat 82003620, node_mem_map 8f951028
[    0.000000]   DMA zone: 40 pages used for memmap
[    0.000000]   DMA zone: 0 pages reserved
[    0.000000]   DMA zone: 3998 pages, LIFO batch:0
[    0.000000]   Normal zone: 600 pages used for memmap
[    0.000000]   Normal zone: 61438 pages, LIFO batch:15
[    0.000000] Using APIC driver default
[    0.000000] ACPI: PM-Timer IO Port: 0xb008
[    0.000000] ACPI: Local APIC address 0xfee00000
[    0.000000] mapped APIC to         ffff9000 (        fee00000)
[    0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
[    0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
[    0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[    0.000000] ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0])
[    0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 00, APIC ID 0, APIC INT 02
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[    0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 05, APIC ID 0, APIC INT 05
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[    0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 09, APIC ID 0, APIC INT 09
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[    0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 0a, APIC ID 0, APIC INT 0a
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[    0.000000] Int: type 0, pol 1, trig 3, bus 00, IRQ 0b, APIC ID 0, APIC INT 0b
[    0.000000] ACPI: IRQ0 used by override.
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 01, APIC ID 0, APIC INT 01
[    0.000000] ACPI: IRQ2 used by override.
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 03, APIC ID 0, APIC INT 03
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 04, APIC ID 0, APIC INT 04
[    0.000000] ACPI: IRQ5 used by override.
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 06, APIC ID 0, APIC INT 06
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 07, APIC ID 0, APIC INT 07
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 08, APIC ID 0, APIC INT 08
[    0.000000] ACPI: IRQ9 used by override.
[    0.000000] ACPI: IRQ10 used by override.
[    0.000000] ACPI: IRQ11 used by override.
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0c, APIC ID 0, APIC INT 0c
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0d, APIC ID 0, APIC INT 0d
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0e, APIC ID 0, APIC INT 0e
[    0.000000] Int: type 0, pol 0, trig 0, bus 00, IRQ 0f, APIC ID 0, APIC INT 0f
[    0.000000] Using ACPI (MADT) for SMP configuration information
[    0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[    0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs
[    0.000000] mapped IOAPIC to ffff8000 (fec00000)
[    0.000000] nr_irqs_gsi: 40
[    0.000000] e820: [mem 0x10000000-0xfeffbfff] available for PCI devices
[    0.000000] Booting paravirtualized kernel on KVM
[    0.000000] setup_percpu: NR_CPUS:32 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:1
[    0.000000] PERCPU: Embedded 334 pages/cpu @8f6b5000 s1355376 r0 d12688 u1368064
[    0.000000] pcpu-alloc: s1355376 r0 d12688 u1368064 alloc=334*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1
[    0.000000] KVM setup async PF for cpu 0
[    0.000000] kvm-stealtime: cpu 0, msr f6b7540
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 64796
[    0.000000] Kernel command line: debug sched_debug apic=debug ignore_loglevel earlyprintk=ttyS0,115200 sysrq_always_enabled panic=10 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw
[    0.000000] sysrq: sysrq always enabled.
[    0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes)
[    0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
[    0.000000] Initializing CPU#0
[    0.000000] Initializing HighMem for node 0 (00000000:00000000)
[    0.000000] Memory: 228660K/261744K available (11636K kernel code, 868K rwdata, 4068K rodata, 1956K init, 5592K bss, 33084K reserved, 0K highmem)
[    0.000000] virtual kernel memory layout:
[    0.000000]     fixmap  : 0xffa93000 - 0xfffff000   (5552 kB)
[    0.000000]     pkmap   : 0xff400000 - 0xff800000   (4096 kB)
[    0.000000]     vmalloc : 0x907fe000 - 0xff3fe000   (1772 MB)
[    0.000000]     lowmem  : 0x80000000 - 0x8fffe000   ( 255 MB)
[    0.000000]       .init : 0x82033000 - 0x8221c000   (1956 kB)
[    0.000000]       .data : 0x81b5d71f - 0x82031360   (4943 kB)
[    0.000000]       .text : 0x81000000 - 0x81b5d71f   (11637 kB)
[    0.000000] Checking if this processor honours the WP bit even in supervisor mode...Ok.
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[    0.000000] Hierarchical RCU implementation.
[    0.000000]  RCU debugfs-based tracing is enabled.
[    0.000000]  Hierarchical RCU autobalancing is disabled.
[    0.000000]  RCU dyntick-idle grace-period acceleration is enabled.
[    0.000000]  Additional per-CPU info printed with stalls.
[    0.000000]  RCU restricting CPUs from NR_CPUS=32 to nr_cpu_ids=2.
[    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
[    0.000000] NR_IRQS:2304 nr_irqs:512 16
[    0.000000] CPU 0 irqstacks, hard=8f00a000 soft=8f00c000
[    0.000000] ACPI: Core revision 20140214
[    0.000000] ACPI: All ACPI Tables successfully acquired
[    0.000000] console [ttyS0] enabled
[    0.000000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[    0.000000] ... MAX_LOCKDEP_SUBCLASSES:  8
[    0.000000] ... MAX_LOCK_DEPTH:          48
[    0.000000] ... MAX_LOCKDEP_KEYS:        8191
[    0.000000] ... CLASSHASH_SIZE:          4096
[    0.000000] ... MAX_LOCKDEP_ENTRIES:     16384
[    0.000000] ... MAX_LOCKDEP_CHAINS:      32768
[    0.000000] ... CHAINHASH_SIZE:          16384
[    0.000000]  memory used by lock dependency info: 3807 kB
[    0.000000]  per task-struct memory footprint: 1920 bytes
[    0.000000] ------------------------
[    0.000000] | Locking API testsuite:
[    0.000000] ----------------------------------------------------------------------------
[    0.000000]                                  | spin |wlock |rlock |mutex | wsem | rsem |
[    0.000000]   --------------------------------------------------------------------------
[    0.000000]                      A-A deadlock:failed|failed|  ok  |failed|failed|failed|
[    0.000000]                  A-B-B-A deadlock:failed|failed|  ok  |failed|failed|failed|
[    0.000000]              A-B-B-C-C-A deadlock:failed|failed|  ok  |failed|failed|failed|
[    0.000000]              A-B-C-A-B-C deadlock:failed|failed|  ok  |failed|failed|failed|
[    0.000000]          A-B-B-C-C-D-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
[    0.000000]          A-B-C-D-B-D-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
[    0.000000]          A-B-C-D-B-C-D-A deadlock:failed|failed|  ok  |failed|failed|failed|
[    0.000000]                     double unlock:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
[    0.000000]                   initialize held:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
[    0.000000]                  bad unlock order:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
[    0.000000]   --------------------------------------------------------------------------
[    0.000000]               recursive read-lock:             |  ok  |             |failed|
[    0.000000]            recursive read-lock #2:             |  ok  |             |failed|
[    0.000000]             mixed read-write-lock:             |failed|             |failed|
[    0.000000]             mixed write-read-lock:             |failed|             |failed|
[    0.000000]   --------------------------------------------------------------------------
[    0.000000]      hard-irqs-on + irq-safe-A/12:failed|failed|  ok  |
[    0.000000]      soft-irqs-on + irq-safe-A/12:failed|failed|  ok  |
[    0.000000]      hard-irqs-on + irq-safe-A/21:failed|failed|  ok  |
[    0.000000]      soft-irqs-on + irq-safe-A/21:failed|failed|  ok  |
[    0.000000]        sirq-safe-A => hirqs-on/12:failed|failed|  ok  |
[    0.000000]        sirq-safe-A => hirqs-on/21:failed|failed|  ok  |
[    0.000000]          hard-safe-A + irqs-on/12:failed|failed|  ok  |
[    0.000000]          soft-safe-A + irqs-on/12:failed|failed|  ok  |
[    0.000000]          hard-safe-A + irqs-on/21:failed|failed|  ok  |
[    0.000000]          soft-safe-A + irqs-on/21:failed|failed|  ok  |
[    0.000000]     hard-safe-A + unsafe-B #1/123:failed|failed|  ok  |
[    0.000000]     soft-safe-A + unsafe-B #1/123:failed|failed|  ok  |
[    0.000000]     hard-safe-A + unsafe-B #1/132:failed|failed|  ok  |
[    0.000000]     soft-safe-A + unsafe-B #1/132:failed|failed|  ok  |
[    0.000000]     hard-safe-A + unsafe-B #1/213:failed|failed|  ok  |
[    0.000000]     soft-safe-A + unsafe-B #1/213:failed|failed|  ok  |
[    0.000000]     hard-safe-A + unsafe-B #1/231:failed|failed|  ok  |
[    0.000000]     soft-safe-A + unsafe-B #1/231:failed|failed|  ok  |
[    0.000000]     hard-safe-A + unsafe-B #1/312:failed|failed|  ok  |
[    0.000000]     soft-safe-A + unsafe-B #1/312:failed|failed|  ok  |
[    0.000000]     hard-safe-A + unsafe-B #1/321:failed|failed|  ok  |
[    0.000000]     soft-safe-A + unsafe-B #1/321:failed|failed|  ok  |
[    0.000000]     hard-safe-A + unsafe-B #2/123:failed|failed|  ok  |
[    0.000000]     soft-safe-A + unsafe-B #2/123:failed|failed|  ok  |
[    0.000000]     hard-safe-A + unsafe-B #2/132:failed|failed|  ok  |
[    0.000000]     soft-safe-A + unsafe-B #2/132:failed|failed|  ok  |
[    0.000000]     hard-safe-A + unsafe-B #2/213:failed|failed|  ok  |
[    0.000000]     soft-safe-A + unsafe-B #2/213:failed|failed|  ok  |
[    0.000000]     hard-safe-A + unsafe-B #2/231:failed|failed|  ok  |
[    0.000000]     soft-safe-A + unsafe-B #2/231:failed|failed|  ok  |
[    0.000000]     hard-safe-A + unsafe-B #2/312:failed|failed|  ok  |
[    0.000000]     soft-safe-A + unsafe-B #2/312:failed|failed|  ok  |
[    0.000000]     hard-safe-A + unsafe-B #2/321:failed|failed|  ok  |
[    0.000000]     soft-safe-A + unsafe-B #2/321:failed|failed|  ok  |
[    0.000000]       hard-irq lock-inversion/123:failed|failed|  ok  |
[    0.000000]       soft-irq lock-inversion/123:failed|failed|  ok  |
[    0.000000]       hard-irq lock-inversion/132:failed|failed|  ok  |
[    0.000000]       soft-irq lock-inversion/132:failed|failed|  ok  |
[    0.000000]       hard-irq lock-inversion/213:failed|failed|  ok  |
[    0.000000]       soft-irq lock-inversion/213:failed|failed|  ok  |
[    0.000000]       hard-irq lock-inversion/231:failed|failed|  ok  |
[    0.000000]       soft-irq lock-inversion/231:failed|failed|  ok  |
[    0.000000]       hard-irq lock-inversion/312:failed|failed|  ok  |
[    0.000000]       soft-irq lock-inversion/312:failed|failed|  ok  |
[    0.000000]       hard-irq lock-inversion/321:failed|failed|  ok  |
[    0.000000]       soft-irq lock-inversion/321:failed|failed|  ok  |
[    0.000000]       hard-irq read-recursion/123:  ok  |
[    0.000000]       soft-irq read-recursion/123:  ok  |
[    0.000000]       hard-irq read-recursion/132:  ok  |
[    0.000000]       soft-irq read-recursion/132:  ok  |
[    0.000000]       hard-irq read-recursion/213:  ok  |
[    0.000000]       soft-irq read-recursion/213:  ok  |
[    0.000000]       hard-irq read-recursion/231:  ok  |
[    0.000000]       soft-irq read-recursion/231:  ok  |
[    0.000000]       hard-irq read-recursion/312:  ok  |
[    0.000000]       soft-irq read-recursion/312:  ok  |
[    0.000000]       hard-irq read-recursion/321:  ok  |
[    0.000000]       soft-irq read-recursion/321:  ok  |
[    0.000000]   --------------------------------------------------------------------------
[    0.000000]   | Wound/wait tests |
[    0.000000]   ---------------------
[    0.000000]                   ww api failures:  ok  |  ok  |  ok  |
[    0.000000]                ww contexts mixing:failed|  ok  |
[    0.000000]              finishing ww context:  ok  |  ok  |  ok  |  ok  |
[    0.000000]                locking mismatches:  ok  |  ok  |  ok  |
[    0.000000]                  EDEADLK handling:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
[    0.000000]            spinlock nest unlocked:  ok  |
[    0.000000]   -----------------------------------------------------
[    0.000000]                                  |block | try  |context|
[    0.000000]   -----------------------------------------------------
[    0.000000]                           context:failed|  ok  |  ok  |
[    0.000000]                               try:failed|  ok  |failed|
[    0.000000]                             block:failed|  ok  |failed|
[    0.000000]                          spinlock:failed|  ok  |failed|
[    0.000000] --------------------------------------------------------
[    0.000000] 141 out of 253 testcases failed, as expected. |
[    0.000000] ----------------------------------------------------
[    0.000000] ODEBUG: 12 of 12 active objects replaced
[    0.000000] ODEBUG: selftest passed
[    0.000000] hpet clockevent registered
[    0.000000] tsc: Detected 2693.508 MHz processor
[    0.000000] tsc: Marking TSC unstable due to TSCs unsynchronized
[    0.012000] Calibrating delay loop (skipped) preset value.. 5387.01 BogoMIPS (lpj=10774032)
[    0.012000] pid_max: default: 4096 minimum: 301
[    0.012000] Mount-cache hash table entries: 512
[    0.012478] Initializing cgroup subsys debug
[    0.013140] Initializing cgroup subsys devices
[    0.013910] Initializing cgroup subsys freezer
[    0.014670] Initializing cgroup subsys net_cls
[    0.015356] Initializing cgroup subsys blkio
[    0.016026] Initializing cgroup subsys perf_event
[    0.017443] Initializing cgroup subsys net_prio
[    0.020061] BUG: unable to handle kernel paging request at 8f024000
[    0.021717] IP: [<820444c8>] sysenter_setup+0x90/0x2b4
[    0.023188] *pde = 0fbe8067 *pte = 0f024060
[    0.024000] Oops: 0002 [#1] SMP DEBUG_PAGEALLOC
[    0.024000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.14.0-rc5-03765-gd478a96 #4
[    0.024000] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    0.024000] task: 81f5ff20 ti: 81f58000 task.ti: 81f58000
[    0.024000] EIP: 0060:[<820444c8>] EFLAGS: 00210206 CPU: 0
[    0.024000] EIP is at sysenter_setup+0x90/0x2b4
[    0.024000] EAX: 078bfbfd EBX: 8f023000 ECX: 00000044 EDX: 00001044
[    0.024000] ESI: 82091418 EDI: 8f024000 EBP: 81f59fb4 ESP: 81f59f90
[    0.024000]  DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[    0.024000] CR0: 8005003b CR2: 8f024000 CR3: 02228000 CR4: 00000690
[    0.024000] Stack:
[    0.024000]  81f6d0c0 8f022b80 00000f61 00000800 80002001 078bfbfd 820850e0 00020800
[    0.024000]  82229800 81f59fbc 82039789 81f59fcc 820397bf 820850e0 00020800 81f59fec
[    0.024000]  82033a6d 0000027e ffffffff ffffffff 82033530 820850e0 00000800 81f59ff8
[    0.024000] Call Trace:
[    0.024000]  [<82039789>] identify_boot_cpu+0x17/0x28
[    0.024000]  [<820397bf>] check_bugs+0xb/0xbb
[    0.024000]  [<82033a6d>] start_kernel+0x376/0x381
[    0.024000]  [<82033530>] ? repair_env_string+0x51/0x51
[    0.024000]  [<82033364>] i386_start_kernel+0x12e/0x131
[    0.024000] Code: f6 c4 08 74 12 ba 5c 14 09 82 be 18 04 09 82 81 ea 18 04 09 82 eb 10 ba 18 04 09 82 be e8 f3 08 82 81 ea e8 f3 08 82 89 d1 89 df <f3> a4 89 d8 e8 bf fe ff ff b9 04 00 00 00 ba c0 39 df 81 89 d8
[    0.024000] EIP: [<820444c8>] sysenter_setup+0x90/0x2b4 SS:ESP 0068:81f59f90
[    0.024000] CR2: 000000008f024000
[    0.024000] ---[ end trace ebb41f6832ca3e69 ]---
[    0.024000] Kernel panic - not syncing: Attempted to kill the idle task!
[    0.024000] Rebooting in 10 seconds..


% cat /home/wfg/bin/kvm-0day.sh                       
#!/bin/bash

kvm=(
        qemu-system-x86_64 -cpu kvm64 -enable-kvm
        -kernel $1
        # -initrd /kernel-tests/initrd/yocto-minimal-i386.cgz
        -initrd /kernel-tests/initrd/yocto-minimal-x86_64.cgz
        # -initrd /kernel-tests/initrd/quantal-core-i386.cgz
        # -initrd /kernel-tests/initrd/quantal-core-x86_64.cgz
        -smp 2
        -m 256M
        -net nic,vlan=0,macaddr=00:00:00:00:00:00,model=virtio
        -net user,vlan=0
        -net nic,vlan=1,model=e1000
        -net user,vlan=1
        -boot order=nc
        -no-reboot
        -watchdog i6300esb
        -serial stdio
        -display none
        -monitor null
)

append=(
        debug
        sched_debug
        apic=debug
        ignore_loglevel
        # dyndbg=\"func kobject_release +p\"
        earlyprintk=ttyS0,115200
        sysrq_always_enabled
        panic=10
        prompt_ramdisk=0
        console=ttyS0,115200
        console=tty0
        vga=normal
        root=/dev/ram0
        rw
)

"${kvm[@]}" --append "${append[*]}"
--
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