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Date: Mon, 24 Aug 2009 11:49:28 +0200 From: Zdenek Kabelac <zdenek.kabelac@...il.com> To: Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Cc: Avi Kivity <avi@...ranet.com>, yaniv@...ranet.com Subject: not syncing: IO-APIC in qemu kvm Hi I've just booted -rc7 kernel (3edf2fb9d80a46d6c32ba12547a42419845b4b76) And the first boot give me this error: [ 0.000000] Linux version 2.6.31-rc7-00015-ge740538 (kabi@...p-0-185.brq.redhat.com) (gcc version 4.4.1 20090818 (Red Hat 4.4.1-6) (GCC) ) #18 SMP PREEMPT Mon Aug 24 10:56:53 CEST 2009 [ 0.000000] Command line: root=/dev/sda1 ro console=ttyS0 console=tty0 selinux=0 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: 0000000000000000 - 000000000009f000 (usable) [ 0.000000] BIOS-e820: 000000000009f000 - 00000000000a0000 (reserved) [ 0.000000] BIOS-e820: 00000000000e8000 - 0000000000100000 (reserved) [ 0.000000] BIOS-e820: 0000000000100000 - 000000001fff0000 (usable) [ 0.000000] BIOS-e820: 000000001fff0000 - 0000000020000000 (ACPI data) [ 0.000000] BIOS-e820: 00000000fffbc000 - 0000000100000000 (reserved) [ 0.000000] DMI 2.4 present. [ 0.000000] last_pfn = 0x1fff0 max_arch_pfn = 0x400000000 [ 0.000000] PAT not supported by CPU. [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] modified physical RAM map: [ 0.000000] modified: 0000000000000000 - 0000000000001000 (usable) [ 0.000000] modified: 0000000000001000 - 0000000000006000 (reserved) [ 0.000000] modified: 0000000000006000 - 000000000009f000 (usable) [ 0.000000] modified: 000000000009f000 - 00000000000a0000 (reserved) [ 0.000000] modified: 00000000000e8000 - 0000000000100000 (reserved) [ 0.000000] modified: 0000000000100000 - 000000001fff0000 (usable) [ 0.000000] modified: 000000001fff0000 - 0000000020000000 (ACPI data) [ 0.000000] modified: 00000000fffbc000 - 0000000100000000 (reserved) [ 0.000000] init_memory_mapping: 0000000000000000-000000001fff0000 [ 0.000000] ACPI: RSDP 00000000000fbd40 00014 (v00 QEMU ) [ 0.000000] ACPI: RSDT 000000001fff0000 00034 (v01 QEMU QEMURSDT 00000001 QEMU 00000001) [ 0.000000] ACPI: FACP 000000001fff01b4 00074 (v01 QEMU QEMUFACP 00000001 QEMU 00000001) [ 0.000000] ACPI: DSDT 000000001fff0280 01DD4 (v01 BXPC BXDSDT 00000001 INTL 20090123) [ 0.000000] ACPI: FACS 000000001fff0240 00040 [ 0.000000] ACPI: SSDT 000000001fff2054 009E3 (v01 BXPC BXSSDT 00000001 INTL 20090123) [ 0.000000] ACPI: APIC 000000001fff2a38 000EA (v01 QEMU QEMUAPIC 00000001 QEMU 00000001) [ 0.000000] ACPI: HPET 000000001fff2b90 00038 (v01 QEMU QEMUHPET 00000001 QEMU 00000001) [ 0.000000] (6 early reservations) ==> bootmem [0000000000 - 001fff0000] [ 0.000000] #0 [0000000000 - 0000001000] BIOS data page ==> [0000000000 - 0000001000] [ 0.000000] #1 [0000006000 - 0000008000] TRAMPOLINE ==> [0000006000 - 0000008000] [ 0.000000] #2 [0001000000 - 00022b1c60] TEXT DATA BSS ==> [0001000000 - 00022b1c60] [ 0.000000] #3 [000009fc00 - 0000100000] BIOS reserved ==> [000009fc00 - 0000100000] [ 0.000000] #4 [00022b2000 - 00022b203d] BRK ==> [00022b2000 - 00022b203d] [ 0.000000] #5 [0000008000 - 0000009000] PGTABLE ==> [0000008000 - 0000009000] [ 0.000000] found SMP MP-table at [ffff8800000fbc20] fbc20 [ 0.000000] Zone PFN ranges: [ 0.000000] DMA 0x00000000 -> 0x00001000 [ 0.000000] DMA32 0x00001000 -> 0x00100000 [ 0.000000] Normal 0x00100000 -> 0x00100000 [ 0.000000] Movable zone start PFN for each node [ 0.000000] early_node_map[3] active PFN ranges [ 0.000000] 0: 0x00000000 -> 0x00000001 [ 0.000000] 0: 0x00000006 -> 0x0000009f [ 0.000000] 0: 0x00000100 -> 0x0001fff0 [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 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 (acpi_id[0x02] lapic_id[0x02] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x03] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x04] lapic_id[0x04] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x05] lapic_id[0x05] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x06] lapic_id[0x06] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x07] lapic_id[0x07] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x08] lapic_id[0x08] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x09] lapic_id[0x09] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x0a] lapic_id[0x0a] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x0b] lapic_id[0x0b] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x0c] lapic_id[0x0c] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x0d] lapic_id[0x0d] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x0e] lapic_id[0x0e] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x0f] lapic_id[0x0f] disabled) [ 0.000000] ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0]) [ 0.000000] IOAPIC[0]: apic_id 2, 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] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 0.000000] 16 Processors exceeds NR_CPUS limit of 2 [ 0.000000] SMP: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: 0000000000001000 - 0000000000006000 [ 0.000000] PM: Registered nosave memory: 000000000009f000 - 00000000000a0000 [ 0.000000] PM: Registered nosave memory: 00000000000a0000 - 00000000000e8000 [ 0.000000] PM: Registered nosave memory: 00000000000e8000 - 0000000000100000 [ 0.000000] Allocating PCI resources starting at 20000000 (gap: 20000000:dffbc000) [ 0.000000] NR_CPUS:2 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 478 pages at ffff8800022c1000, static data 1925728 bytes [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 129062 [ 0.000000] Kernel command line: root=/dev/sda1 ro console=ttyS0 console=tty0 selinux=0 [ 0.000000] PID hash table entries: 2048 (order: 11, 16384 bytes) [ 0.000000] Dentry cache hash table entries: 65536 (order: 7, 524288 bytes) [ 0.000000] Inode-cache hash table entries: 32768 (order: 6, 262144 bytes) [ 0.000000] Initializing CPU#0 [ 0.000000] Checking aperture... [ 0.000000] No AGP bridge found [ 0.000000] Memory: 491336k/524224k available (3981k kernel code, 408k absent, 32056k reserved, 2125k data, 2264k init) [ 0.000000] SLUB: Genslabs=13, HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 0.000000] Hierarchical RCU implementation. [ 0.000000] RCU-based detection of stalled CPUs is enabled. [ 0.000000] NR_IRQS:320 [ 0.000000] Fast TSC calibration failed [ 0.000000] TSC: Unable to calibrate against PIT [ 0.000000] TSC: HPET/PMTIMER calibration failed. [ 0.000000] Marking TSC unstable due to could not calculate TSC khz [ 0.000000] Console: colour VGA+ 80x25 [ 0.000000] console [tty0] enabled [ 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: 6207 kB [ 0.000000] per task-struct memory footprint: 2688 bytes [ 0.003333] Calibrating delay loop... 4287.64 BogoMIPS (lpj=7143424) [ 0.083333] Security Framework initialized [ 0.086666] SELinux: Disabled at boot. [ 0.093333] Mount-cache hash table entries: 256 [ 0.099999] CPU: L1 I cache: 32K, L1 D cache: 32K [ 0.103333] CPU: L2 cache: 2048K [ 0.106666] mce: CPU supports 0 MCE banks [ 0.106666] Performance Counters: unsupported p6 CPU model 2 no PMU driver, software counters only. [ 0.113333] ACPI: Core revision 20090521 [ 0.183333] ftrace: converting mcount calls to 0f 1f 44 00 00 [ 0.186666] ftrace: allocating 14831 entries in 59 pages [ 0.253332] Setting APIC routing to flat [ 0.256666] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 0.256666] ..MP-BIOS bug: 8254 timer not connected to IO-APIC [ 0.256666] ...trying to set up timer (IRQ0) through the 8259A ... [ 0.256666] ..... (found apic 0 pin 2) ... [ 0.256666] ....... failed. [ 0.256666] ...trying to set up timer as Virtual Wire IRQ... [ 0.256666] ..... failed. [ 0.256666] ...trying to set up timer as ExtINT IRQ... [ 0.256666] ..... failed :(. [ 0.256666] Kernel panic - not syncing: IO-APIC + timer doesn't work! Boot with apic=debug and send a report. Then try booting with the 'noapic' option. [ 0.256666] [ 0.256666] Pid: 1, comm: swapper Not tainted 2.6.31-rc7-00015-ge740538 #18 [ 0.256666] Call Trace: [ 0.256666] [<ffffffff813d7ec0>] panic+0x82/0x138 [ 0.256666] [<ffffffff813dbdc8>] ? _spin_unlock_irqrestore+0x38/0x80 [ 0.256666] [<ffffffff8160fada>] setup_IO_APIC+0x779/0x7da [ 0.256666] [<ffffffff81025bed>] ? setup_apic_nmi_watchdog+0x4d/0xd0 [ 0.256666] [<ffffffff8160b9f3>] native_smp_prepare_cpus+0x369/0x404 [ 0.256666] [<ffffffff816013ec>] kernel_init+0x56/0x1a7 [ 0.256666] [<ffffffff8100d2da>] child_rip+0xa/0x20 [ 0.256666] [<ffffffff8100cc40>] ? restore_args+0x0/0x30 [ 0.256666] [<ffffffff81601396>] ? kernel_init+0x0/0x1a7 [ 0.256666] [<ffffffff8100d2d0>] ? child_rip+0x0/0x20 I've checked second time with acpi=debug - and there was not problem. here shortened log: [ 0.000000] Hierarchical RCU implementation. [ 0.000000] RCU-based detection of stalled CPUs is enabled. [ 0.000000] NR_IRQS:320 [ 0.000000] Fast TSC calibration failed [ 0.000000] TSC: HPET/PMTIMER calibration failed. Using PIT calibration [ 0.000000] Detected 2194.331 MHz processor. [ 0.003333] Console: colour VGA+ 80x25 [ 0.003333] console [tty0] enabled [ 0.003333] console [ttyS0] enabled [ 0.003333] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 0.003333] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 0.003333] ... MAX_LOCK_DEPTH: 48 [ 0.003333] ... MAX_LOCKDEP_KEYS: 8191 [ 0.003333] ... CLASSHASH_SIZE: 4096 [ 0.003333] ... MAX_LOCKDEP_ENTRIES: 16384 [ 0.003333] ... MAX_LOCKDEP_CHAINS: 32768 [ 0.003333] ... CHAINHASH_SIZE: 16384 [ 0.003333] memory used by lock dependency info: 6207 kB [ 0.003333] per task-struct memory footprint: 2688 bytes [ 0.003380] Calibrating delay loop (skipped), value calculated using timer frequency.. 4390.52 BogoMIPS (lpj=7314436) [ 0.008804] Security Framework initialized [ 0.010032] SELinux: Disabled at boot. [ 0.013468] Mount-cache hash table entries: 256 [ 0.025608] CPU: L1 I cache: 32K, L1 D cache: 32K [ 0.028052] CPU: L2 cache: 2048K [ 0.030020] mce: CPU supports 0 MCE banks [ 0.032369] Performance Counters: unsupported p6 CPU model 2 no PMU driver, software counters only. [ 0.036927] ACPI: Core revision 20090521 [ 0.107906] ftrace: converting mcount calls to 0f 1f 44 00 00 [ 0.110029] ftrace: allocating 14831 entries in 59 pages [ 0.173960] Setting APIC routing to flat [ 0.176709] Getting VERSION: 50014 [ 0.178805] Getting VERSION: 50014 [ 0.180021] Getting ID: 0 [ 0.183354] Getting ID: ff000000 [ 0.185376] Getting LVT0: 700 [ 0.186682] Getting LVT1: 10000 [ 0.188738] enabled ExtINT on CPU#0 [ 0.193730] ENABLING IO-APIC IRQs [ 0.200949] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 0.243006] CPU0: Intel QEMU Virtual CPU version 0.10.91 stepping 03 [ 0.246672] Using local APIC timer interrupts. [ 0.246674] calibrating APIC timer ... [ 0.253332] ... lapic delta = 6304581 [ 0.253332] ... PM-Timer delta = 361098 [ 0.253332] ... PM-Timer result ok [ 0.253332] ..... delta 6304581 [ 0.253332] ..... mult: 270797348 [ 0.253332] ..... calibration result: 3362443 [ 0.253332] ..... CPU clock speed is 2214.0013 MHz. [ 0.253332] ..... host bus clock speed is 1008.2779 MHz. [ 0.290275] lockdep: fixing up alternatives. [ 0.293367] Booting processor 1 APIC 0x1 ip 0x6000 [ 0.003333] Initializing CPU#1 [ 0.003333] masked ExtINT on CPU#1 [ 0.003333] Calibrating delay using timer specific routine.. 4429.86 BogoMIPS (lpj=7378983) [ 0.003333] CPU: L1 I cache: 32K, L1 D cache: 32K [ 0.003333] CPU: L2 cache: 2048K [ 0.003333] mce: CPU supports 0 MCE banks [ 0.407574] CPU1: Intel QEMU Virtual CPU version 0.10.91 stepping 03 [ 0.417869] checking TSC synchronization [CPU#0 -> CPU#1]: [ 0.419999] Measured 401973 cycles TSC warp between CPUs, turning off TSC clock. [ 0.419999] Marking TSC unstable due to check_tsc_sync_source failed [ 0.426820] Brought up 2 CPUs [ 0.428751] Total of 2 processors activated (8819.38 BogoMIPS). [ 0.437248] regulator: core version 0.5 [ 0.440833] NET: Registered protocol family 16 [ 0.447188] ACPI: bus type pci registered [ 0.463426] PCI: Using configuration type 1 for base access [ 0.533991] bio: create slab <bio-0> at 0 [ 0.647578] ACPI: Interpreter enabled [ 0.649831] ACPI: (supports S0 S3 S4 S5) [ 0.653373] ACPI: Using IOAPIC for interrupt routing [ 0.786354] ACPI: No dock devices found. [ 0.786939] ACPI: PCI Root Bridge [PCI0] (0000:00) [ 0.805247] pci 0000:00:01.3: quirk: region b000-b03f claimed by PIIX4 ACPI [ 0.806873] pci 0000:00:01.3: quirk: region b100-b10f claimed by PIIX4 SMB [ 1.004642] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 1.011300] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 1.020801] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 1.027396] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 1.037755] SCSI subsystem initialized [ 1.043735] PCI: Using ACPI for IRQ routing [ 1.408312] DMA-API: preallocated 32768 debug entries [ 1.410002] DMA-API: debugging enabled by kernel config [ 1.413661] ... APIC ID: 00000000 (0) [ 1.416663] ... APIC VERSION: 00050014 [ 1.416663] 0000000000000000000000000000000000000000000000000000000000000000 [ 1.416663] 0000000000000000000000000000000000000000000000000000000000000000 [ 1.416663] 0000000000000000000000000000000000000000000000000000000000008000 [ 1.416663] [ 1.416663] ... APIC ID: 01000000 (1) [ 1.416663] ... APIC VERSION: 00050014 [ 1.416663] 0000000000000000000000000000000000000000000000000000000000000000 [ 1.416663] 0000000000000000000000000000000000000000000000000000000000000000 [ 1.416663] 0000000000000000000000000000000000000000000000000000000000008000 [ 1.416663] [ 1.459522] testing the IO APIC....................... [ 1.460038] [ 1.464198] .................................... done. [ 1.556895] pnp: PnP ACPI init [ 1.560567] ACPI: bus type pnp registered [ 1.591972] pnp: PnP ACPI: found 7 devices [ 1.593719] ACPI: ACPI bus type pnp unregistered [ 1.622061] NET: Registered protocol family 2 Also next boot without any apic option worked just fine. Could be the reason for this this locked depth error in my host machine ? tun: Universal TUN/TAP device driver, 1.6 tun: (C) 1999-2004 Max Krasnyansky <maxk@...lcomm.com> device tap0 entered promiscuous mode virbr0: topology change detected, propagating virbr0: port 1(tap0) entering forwarding state BUG: MAX_LOCK_DEPTH too low! turning off the locking correctness validator. Pid: 4419, comm: qemu-kvm Not tainted 2.6.31-rc7-00015-ge740538 #18 Call Trace: [<ffffffff8107efb6>] __lock_acquire+0xd66/0x1090 [<ffffffff8107f37a>] lock_acquire+0x9a/0x180 [<ffffffff810f34c9>] ? mm_take_all_locks+0x109/0x140 [<ffffffff813db48c>] _spin_lock_nest_lock+0x4c/0x90 [<ffffffff810f34c9>] ? mm_take_all_locks+0x109/0x140 [<ffffffff810f34c9>] mm_take_all_locks+0x109/0x140 [<ffffffff811002ec>] do_mmu_notifier_register+0x7c/0x1f0 [<ffffffff81100493>] mmu_notifier_register+0x13/0x20 [<ffffffffa0376911>] kvm_dev_ioctl+0x1c1/0x340 [kvm] [<ffffffff8111bca2>] vfs_ioctl+0x22/0xa0 [<ffffffff8107d83d>] ? trace_hardirqs_on+0xd/0x10 [<ffffffff8111be44>] do_vfs_ioctl+0x84/0x590 [<ffffffff8122a4fb>] ? __up_read+0x8b/0xb0 [<ffffffff8100cc2d>] ? retint_swapgs+0xe/0x13 [<ffffffff8111c3d1>] sys_ioctl+0x81/0xa0 [<ffffffff8100c15b>] system_call_fastpath+0x16/0x1b tap0: no IPv6 routers present Zdenek -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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