Public bug reported:
Running stress tests on 2.26.32-21.31 images. At least on one run I had
a guest failure due to a kernel OOPS:
[ 66.218376] IP: [<ffffffff8139cf38>] sym_int_sir+0x2a8/0x760
[ 66.218376] PGD 0
[ 66.218376] Thread overran stack, or stack corrupted
[ 66.218376] Oops: 0000 [#1] SMP
[ 66.218376] last sysfs file: /sys/kernel/uevent_seqnum
[ 66.218376] CPU 0
[ 66.218376] Modules linked in: fbcon tileblit font bitblit softcursor
serio_raw floppy vga16fb e1000 psmouse vgastate acpiphp
[ 66.218376] Pid: 0, comm: swapper Not tainted 2.6.32-21-server #31-Ubuntu
Bochs
[ 66.218376] RIP: 0010:[<ffffffff8139cf38>] [<ffffffff8139cf38>]
sym_int_sir+0x2a8/0x760
[ 66.218376] RSP: 0018:ffff880001c03e28 EFLAGS: 00010287
[ 66.218376] RAX: 000000000000000c RBX: ffff88000f759000 RCX: 0000000000000064
[ 66.218376] RDX: ffff88000f636800 RSI: ffff88000f636000 RDI: ffffc900000d2006
[ 66.218376] RBP: ffff880001c03e48 R08: 0000000000000000 R09: ffff880001c10308
[ 66.218376] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 66.218376] R13: ffff88000f759090 R14: 000000000000000c R15: 0000000000000000
[ 66.218376] FS: 0000000000000000(0000) GS:ffff880001c00000(0000)
knlGS:0000000000000000
[ 66.218376] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[ 66.218376] CR2: 0000000000000358 CR3: 000000000edf1000 CR4: 00000000000006f0
[ 66.218376] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 66.218376] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 66.218376] Process swapper (pid: 0, threadinfo ffffffff817a4000, task
ffffffff817cc600)
[ 66.218376] Stack:
[ 66.218376] ffff88000f759000 0000000000000021 0000000000000084
ffff88000f636000
[ 66.218376] <0> ffff880001c03ea8 ffffffff8139d724 ffff880001c03e98
0000002593f2b6e8
[ 66.218376] <0> 0000000000000000 0000880001c16580 0000000000000000
0000000000000000
[ 66.218376] Call Trace:
[ 66.218376] <IRQ>
[ 66.218376] [<ffffffff8139d724>] sym_interrupt+0x334/0x4b0
[ 66.218376] [<ffffffff81396213>] sym53c8xx_intr+0x53/0x90
[ 66.218376] [<ffffffff810c4880>] handle_IRQ_event+0x60/0x170
[ 66.218376] [<ffffffff810c6dc9>] handle_fasteoi_irq+0x89/0x100
[ 66.218376] [<ffffffff81015d12>] handle_irq+0x22/0x30
[ 66.218376] [<ffffffff8155c60c>] do_IRQ+0x6c/0xf0
[ 66.218376] [<ffffffff81013b13>] ret_from_intr+0x0/0x11
[ 66.218376] <EOI>
[ 66.218376] [<ffffffff81038acb>] ? native_safe_halt+0xb/0x10
[ 66.218376] [<ffffffff8101b68d>] ? default_idle+0x3d/0x90
[ 66.218376] [<ffffffff81011e63>] ? cpu_idle+0xb3/0x110
[ 66.218376] [<ffffffff8153f47b>] ? rest_init+0x6b/0x80
[ 66.218376] [<ffffffff8187adcc>] ? start_kernel+0x368/0x371
[ 66.218376] [<ffffffff8187a33a>] ? x86_64_start_reservations+0x125/0x129
[ 66.218376] [<ffffffff8187a438>] ? x86_64_start_kernel+0xfa/0x109
[ 66.218376] Code: 00 02 e9 84 fe ff ff c6 83 8c 07 00 00 0d e9 78 fe ff ff
c6 83 8c 07 00 00 06 e9 6c fe ff ff c6 83 8c 07 00 00 0c e9 60 fe ff ff <49> 8b
84 24 58 03 00 00 48 8b 90 80 00 00 00 4c 8b a2 b0 00 00
[ 66.218376] RIP [<ffffffff8139cf38>] sym_int_sir+0x2a8/0x760
[ 66.218376] RSP <ffff880001c03e28>
[ 66.218376] CR2: 0000000000000358
[ 66.278837] ---[ end trace 45d2b76d14de4862 ]---
[ 66.279376] Kernel panic - not syncing: Fatal exception in interrupt
[ 66.280119] Pid: 0, comm: swapper Tainted: G D 2.6.32-21-server
#31-Ubuntu
[ 66.280981] Call Trace:
[ 66.281267] <IRQ> [<ffffffff81554826>] panic+0x78/0x137
[ 66.281911] [<ffffffff815585ca>] oops_end+0xea/0xf0
[ 66.282510] [<ffffffff810409d3>] no_context+0xf3/0x190
[ 66.283123] [<ffffffff81040b95>] __bad_area_nosemaphore+0x125/0x1e0
[ 66.283852] [<ffffffff81040c63>] bad_area_nosemaphore+0x13/0x20
[ 66.284552] [<ffffffff8155a164>] do_page_fault+0x2e4/0x3b0
[ 66.285206] [<ffffffff81557905>] page_fault+0x25/0x30
[ 66.285801] [<ffffffff8139cf38>] ? sym_int_sir+0x2a8/0x760
[ 66.286440] [<ffffffff8139cd07>] ? sym_int_sir+0x77/0x760
[ 66.287074] [<ffffffff8139d724>] sym_interrupt+0x334/0x4b0
[ 66.287714] [<ffffffff81396213>] sym53c8xx_intr+0x53/0x90
[ 66.288346] [<ffffffff810c4880>] handle_IRQ_event+0x60/0x170
[ 66.289007] [<ffffffff810c6dc9>] handle_fasteoi_irq+0x89/0x100
[ 66.289686] [<ffffffff81015d12>] handle_irq+0x22/0x30
[ 66.290296] [<ffffffff8155c60c>] do_IRQ+0x6c/0xf0
[ 66.290849] [<ffffffff81013b13>] ret_from_intr+0x0/0x11
[ 66.291459] <EOI> [<ffffffff81038acb>] ? native_safe_halt+0xb/0x10
[ 66.292195] [<ffffffff8101b68d>] ? default_idle+0x3d/0x90
[ 66.292831] [<ffffffff81011e63>] ? cpu_idle+0xb3/0x110
[ 66.293416] [<ffffffff8153f47b>] ? rest_init+0x6b/0x80
[ 66.293988] [<ffffffff8187adcc>] ? start_kernel+0x368/0x371
[ 66.294621] [<ffffffff8187a33a>] ? x86_64_start_reservations+0x125/0x129
[ 66.295372] [<ffffffff8187a438>] ? x86_64_start_kernel+0xfa/0x109
I will attach the whole saved console output.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
--
UEC guest sometimes gets kernel OOPS
https://bugs.launchpad.net/bugs/564924
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