[Bug 476332] [NEW] kernel crash with kvm

Launchpad Bug Tracker 476332 at bugs.launchpad.net
Fri Nov 6 10:25:09 GMT 2009 

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last night kernel crash on kvm host (64 bits kernel, karmic) :

Nov  6 05:39:43 bes12 kernel: [1500910.747443] BUG: unable to handle kernel NULL pointer dereference at 0000000000000028
Nov  6 05:39:43 bes12 kernel: [1500910.747500] IP: [<ffffffffa01cae56>] kpit_elapsed+0x46/0x80 [kvm]
Nov  6 05:39:43 bes12 kernel: [1500910.747546] PGD 6114de067 PUD 610077067 PMD 0
Nov  6 05:39:43 bes12 kernel: [1500910.747579] Oops: 0000 [#1] SMP
Nov  6 05:39:43 bes12 kernel: [1500910.747607] last sysfs file: /sys/devices/virtual/block/dm-3/uevent
Nov  6 05:39:43 bes12 kernel: [1500910.747637] CPU 6
Nov  6 05:39:43 bes12 kernel: [1500910.747659] Modules linked in: ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs xfs exportfs reiserfs tun ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_tcpudp kvm_intel kvm 8021q garp radeon ttm iptable_filter bridge ip_tables drm i2c_algo_bit stp x_tables ipmi_si psmouse lp ipmi_msghandler hpilo serio_raw bnx2 parport usbhid cciss
Nov  6 05:39:43 bes12 kernel: [1500910.747906] Pid: 12831, comm: kvm Not tainted 2.6.31-14-server #48-Ubuntu ProLiant DL360 G6
Nov  6 05:39:43 bes12 kernel: [1500910.747952] RIP: 0010:[<ffffffffa01cae56>]  [<ffffffffa01cae56>] kpit_elapsed+0x46/0x80 [kvm]
Nov  6 05:39:43 bes12 kernel: [1500910.748031] RSP: 0018:ffff880571bafb18  EFLAGS: 00010202
Nov  6 05:39:43 bes12 kernel: [1500910.748058] RAX: 0000000000000000 RBX: ffff880610915400 RCX: 0000000000000000
Nov  6 05:39:43 bes12 kernel: [1500910.748103] RDX: 0000000000000000 RSI: ffff880610915460 RDI: ffff880610114000
Nov  6 05:39:43 bes12 kernel: [1500910.748147] RBP: ffff880571bafb38 R08: 0000000000000043 R09: 0000000000000020
Nov  6 05:39:43 bes12 kernel: [1500910.748191] R10: 0000000000000000 R11: 0000000000000000 R12: 0005589e6e49f33e
Nov  6 05:39:43 bes12 kernel: [1500910.748236] R13: ffff880610915400 R14: ffff880610114000 R15: ffff880610915400
Nov  6 05:39:43 bes12 kernel: [1500910.748281] FS:  00007fa1b18b3910(0000) GS:ffffc90000c00000(0000) knlGS:0000000000000000
Nov  6 05:39:43 bes12 kernel: [1500910.748327] CS:  0010 DS: 002b ES: 002b CR0: 000000008005003b
Nov  6 05:39:43 bes12 kernel: [1500910.748355] CR2: 0000000000000028 CR3: 000000060f1ae000 CR4: 00000000000026e0
Nov  6 05:39:43 bes12 kernel: [1500910.748399] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Nov  6 05:39:43 bes12 kernel: [1500910.748444] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Nov  6 05:39:43 bes12 kernel: [1500910.748518] Process kvm (pid: 12831, threadinfo ffff880571bae000, task ffff880570144410)
Nov  6 05:39:43 bes12 kernel: [1500910.748563] Stack:
Nov  6 05:39:43 bes12 kernel: [1500910.748584]  00000000dff88ff8 ffffffffff5fd0b0 ffff880610915400 0000000000000000
Nov  6 05:39:43 bes12 kernel: [1500910.748622] <0> ffff880571bafb78 ffffffffa01cb02f ffff880571bafb88 ffffffffa01b8f20
Nov  6 05:39:43 bes12 kernel: [1500910.748677] <0> ffff880610915460 0000000000000000 ffff880610114000 0000000000000000
Nov  6 05:39:43 bes12 kernel: [1500910.748748] Call Trace:
Nov  6 05:39:43 bes12 kernel: [1500910.748781]  [<ffffffffa01cb02f>] pit_get_count+0x4f/0xf0 [kvm]
Nov  6 05:39:43 bes12 kernel: [1500910.748820]  [<ffffffffa01b8f20>] ? emulator_write_emulated+0x70/0x90 [kvm]
Nov  6 05:39:43 bes12 kernel: [1500910.748860]  [<ffffffffa01cb120>] pit_latch_count+0x50/0x90 [kvm]
Nov  6 05:39:43 bes12 kernel: [1500910.748898]  [<ffffffffa01cb768>] pit_ioport_write+0x1c8/0x280 [kvm]
Nov  6 05:39:43 bes12 kernel: [1500910.748937]  [<ffffffffa01c52c5>] ? x86_decode_insn+0x8a5/0xb20 [kvm]
Nov  6 05:39:43 bes12 kernel: [1500910.748976]  [<ffffffffa01af1b3>] ? kvm_io_bus_find_dev+0x53/0x80 [kvm]
Nov  6 05:39:43 bes12 kernel: [1500910.749016]  [<ffffffffa01bc83a>] kvm_emulate_pio+0x13a/0x240 [kvm]
Nov  6 05:39:43 bes12 kernel: [1500910.749050]  [<ffffffffa01e0ea3>] ? vmx_set_rflags+0x23/0x30 [kvm_intel]
Nov  6 05:39:43 bes12 kernel: [1500910.749089]  [<ffffffffa01baff7>] ? emulate_instruction+0x2d7/0x340 [kvm]
Nov  6 05:39:43 bes12 kernel: [1500910.749124]  [<ffffffffa01e4257>] handle_io+0x77/0x80 [kvm_intel]
Nov  6 05:39:43 bes12 kernel: [1500910.749156]  [<ffffffffa01e19ff>] vmx_handle_exit+0x9f/0x270 [kvm_intel]
Nov  6 05:39:43 bes12 kernel: [1500910.749189]  [<ffffffff815268eb>] ? __down_read+0xbb/0xc6
Nov  6 05:39:43 bes12 kernel: [1500910.749220]  [<ffffffffa01e54ec>] ? vmx_vcpu_run+0x21c/0x360 [kvm_intel]
Nov  6 05:39:43 bes12 kernel: [1500910.749260]  [<ffffffffa01c97ab>] ? kvm_apic_has_interrupt+0x5b/0x80 [kvm]
Nov  6 05:39:43 bes12 kernel: [1500910.749301]  [<ffffffffa01b6aa2>] vcpu_enter_guest+0x2b2/0x5c0 [kvm]
Nov  6 05:39:43 bes12 kernel: [1500910.749331]  [<ffffffff815268eb>] ? __down_read+0xbb/0xc6
Nov  6 05:39:43 bes12 kernel: [1500910.750956]  [<ffffffff81078620>] ? autoremove_wake_function+0x0/0x40
Nov  6 05:39:43 bes12 kernel: [1500910.750996]  [<ffffffffa01b6e13>] __vcpu_run+0x63/0x320 [kvm]
Nov  6 05:39:43 bes12 kernel: [1500910.751034]  [<ffffffffa01bcd92>] kvm_arch_vcpu_ioctl_run+0x82/0x1c0 [kvm]
Nov  6 05:39:43 bes12 kernel: [1500910.751074]  [<ffffffffa01b25d3>] kvm_vcpu_ioctl+0x473/0x5c0 [kvm]
Nov  6 05:39:43 bes12 kernel: [1500910.751104]  [<ffffffff81526aa9>] ? _spin_lock+0x9/0x10
Nov  6 05:39:43 bes12 kernel: [1500910.751132]  [<ffffffff810888b2>] ? futex_wake+0x102/0x120
Nov  6 05:39:43 bes12 kernel: [1500910.751163]  [<ffffffff8112d3fd>] vfs_ioctl+0x1d/0xa0
Nov  6 05:39:43 bes12 kernel: [1500910.751191]  [<ffffffff8112d589>] do_vfs_ioctl+0x79/0x400
Nov  6 05:39:43 bes12 kernel: [1500910.751219]  [<ffffffff8108afe6>] ? sys_futex+0xc6/0x170
Nov  6 05:39:43 bes12 kernel: [1500910.751248]  [<ffffffff8112d991>] sys_ioctl+0x81/0xa0
Nov  6 05:39:43 bes12 kernel: [1500910.751277]  [<ffffffff81011fc2>] system_call_fastpath+0x16/0x1b
Nov  6 05:39:43 bes12 kernel: [1500910.751305] Code: 31 d2 48 83 bb 18 01 00 00 00 75 11 48 89 d0 48 8b 5d f0 4c 8b 65 f8 c9 c3 0f 1f 40 00 48 8b 83 d8 00 00 00 4c 8b a3 c0 00 00 00 <ff> 50 28 48 8b 8b 18 01 00 00 49 29 c4 48 89 ca 4c 29 e2 48 89
Nov  6 05:39:43 bes12 kernel: [1500910.751554] RIP  [<ffffffffa01cae56>] kpit_elapsed+0x46/0x80 [kvm]
Nov  6 05:39:43 bes12 kernel: [1500910.751595]  RSP <ffff880571bafb18>
Nov  6 05:39:43 bes12 kernel: [1500910.751618] CR2: 0000000000000028
Nov  6 05:39:43 bes12 kernel: [1500910.751928] ---[ end trace 1a2c52aa5ab52148 ]---

** Affects: qemu-kvm (Ubuntu)
     Importance: Undecided
         Status: New

-- 
kernel crash with kvm
https://bugs.launchpad.net/bugs/476332
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