Public bug reported:
My Ubuntu 9.04 64bit completely froze today (no mouse pointer, no responses to
ssh connect) after 7 hours of use.
Upon looking into syslog for clues what happened I found this entry:
Aug 19 14:16:03 cthulhu kernel: [25527.727073] ------------[ cut here
]------------
Aug 19 14:16:03 cthulhu kernel: [25527.727079] kernel BUG at
/build/buildd/linux-2.6.28/fs/super.c:149!
Aug 19 14:16:03 cthulhu kernel: [25527.727081] invalid opcode: 0000 [#1] SMP
Aug 19 14:16:03 cthulhu kernel: [25527.727084] last sysfs file:
/sys/devices/virtual/net/pan0/statistics/collisions
Aug 19 14:16:03 cthulhu kernel: [25527.727087] Dumping ftrace buffer:
Aug 19 14:16:03 cthulhu kernel: [25527.727090] (ftrace buffer empty)
Aug 19 14:16:03 cthulhu kernel: [25527.727091] CPU 1
Aug 19 14:16:03 cthulhu kernel: [25527.727092] Modules linked in: xts gf128mul
binfmt_misc ppdev bridge stp bnep vboxnetadp vboxnetflt vboxdrv input_polldev
dm_crypt aes_x86_64 aes_generic lp parport snd_hda_intel arc4 ecb snd_pcm_oss
snd_mixer_oss snd_pcm iwlagn snd_seq_dummy iwlcore snd_seq_oss snd_seq_midi
snd_rawmidi snd_seq_midi_event snd_seq uvcvideo snd_timer snd_seq_device
psmouse compat_ioctl32 thinkpad_acpi pcmcia videodev mac80211 snd video
sdhci_pci iTCO_wdt v4l1_compat led_class serio_raw pcspkr soundcore output
usbhid ricoh_mmc sdhci iTCO_vendor_support yenta_socket rsrc_nonstatic
pcmcia_core cfg80211 snd_page_alloc nvram intel_agp btusb fglrx(P) ohci1394
ieee1394 e1000e fbcon tileblit font bitblit softcursor
Aug 19 14:16:03 cthulhu kernel: [25527.727127] Pid: 30, comm: pdflush Tainted:
P 2.6.28-14-generic #47-Ubuntu
Aug 19 14:16:03 cthulhu kernel: [25527.727129] RIP: 0010:[<ffffffff802e955c>]
[<ffffffff802e955c>] __put_super_and_need_restart+0x4c/0x50
Aug 19 14:16:03 cthulhu kernel: [25527.727137] RSP: 0018:ffff88013a401dd0
EFLAGS: 00010246
Aug 19 14:16:03 cthulhu kernel: [25527.727139] RAX: 0000000000000000 RBX:
ffff880135365400 RCX: 0000000000000000
Aug 19 14:16:03 cthulhu kernel: [25527.727140] RDX: 0000000000000000 RSI:
0000000000000286 RDI: ffff880135365400
Aug 19 14:16:03 cthulhu kernel: [25527.727142] RBP: ffff88013a401dd0 R08:
ffff88012d9fe268 R09: 0000000000000001
Aug 19 14:16:03 cthulhu kernel: [25527.727143] R10: 0000000000000000 R11:
0000000000000000 R12: ffff880135365470
Aug 19 14:16:03 cthulhu kernel: [25527.727145] R13: ffff88013a401e10 R14:
ffffffff80b431c0 R15: ffff88013a401e50
Aug 19 14:16:03 cthulhu kernel: [25527.727146] FS: 0000000000000000(0000)
GS:ffff88013b802d80(0000) knlGS:0000000000000000
Aug 19 14:16:03 cthulhu kernel: [25527.727148] CS: 0010 DS: 0018 ES: 0018 CR0:
000000008005003b
Aug 19 14:16:03 cthulhu kernel: [25527.727150] CR2: 00007f23997dc000 CR3:
0000000000201000 CR4: 00000000000426a0
Aug 19 14:16:03 cthulhu kernel: [25527.727151] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Aug 19 14:16:03 cthulhu kernel: [25527.727153] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Aug 19 14:16:03 cthulhu kernel: [25527.727154] Process pdflush (pid: 30,
threadinfo ffff88013a400000, task ffff88013a408000)
Aug 19 14:16:03 cthulhu kernel: [25527.727156] Stack:
Aug 19 14:16:03 cthulhu kernel: [25527.727157] ffff88013a401e00
ffffffff80307dee ffff88013a401ed0 0000000000000080
Aug 19 14:16:03 cthulhu kernel: [25527.727160] ffff88013a401e10
ffff88013a401e58 ffff88013a401e90 ffffffff802b8530
Aug 19 14:16:03 cthulhu kernel: [25527.727163] 0000000000000000
0000000000000000 0000000000000000 0000000000000400
Aug 19 14:16:03 cthulhu kernel: [25527.727166] Call Trace:
Aug 19 14:16:03 cthulhu kernel: [25527.727167] [<ffffffff80307dee>]
writeback_inodes+0x7e/0x100
Aug 19 14:16:03 cthulhu kernel: [25527.727171] [<ffffffff802b8530>]
background_writeout+0xb0/0xe0
Aug 19 14:16:03 cthulhu kernel: [25527.727174] [<ffffffff802b98b6>]
__pdflush+0x136/0x220
Aug 19 14:16:03 cthulhu kernel: [25527.727177] [<ffffffff802b99f6>]
pdflush+0x56/0x60
Aug 19 14:16:03 cthulhu kernel: [25527.727179] [<ffffffff802b8480>] ?
background_writeout+0x0/0xe0
Aug 19 14:16:03 cthulhu kernel: [25527.727182] [<ffffffff802b99a0>] ?
pdflush+0x0/0x60
Aug 19 14:16:03 cthulhu kernel: [25527.727184] [<ffffffff80268559>]
kthread+0x49/0x90
Aug 19 14:16:03 cthulhu kernel: [25527.727187] [<ffffffff80213979>]
child_rip+0xa/0x11
Aug 19 14:16:03 cthulhu kernel: [25527.727190] [<ffffffff80268510>] ?
kthread+0x0/0x90
Aug 19 14:16:03 cthulhu kernel: [25527.727192] [<ffffffff8021396f>] ?
child_rip+0x0/0x11
Aug 19 14:16:03 cthulhu kernel: [25527.727195] Code: c3 66 0f 1f 44 00 00 8b 87
a0 00 00 00 ba 01 00 00 00 83 e8 01 85 c0 89 87 a0 00 00 00 75 de e8 7b ff ff
ff ba 01 00 00 00 eb d2 <0f> 0b eb fe 55 48 89 e5 41 56 49 c7 c6 c0 31 b4 80 41
55 41 89
Aug 19 14:16:03 cthulhu kernel: [25527.727218] RIP [<ffffffff802e955c>]
__put_super_and_need_restart+0x4c/0x50
Aug 19 14:16:03 cthulhu kernel: [25527.727221] RSP <ffff88013a401dd0>
Aug 19 14:16:03 cthulhu kernel: [25527.727223] ---[ end trace cfd48a8924b7a717
]---
Since it says "BUG" I decided to report it. :)
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: kernel
--
Kernel Bug
https://bugs.launchpad.net/bugs/415887
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