Re: kernel BUG at fs/inode.c

[Jan Kara <jack@suse.cz>]

  Hi,

>  This is to report a kernel bug that appeared while using the
>  non-standard kernel 2.6.24-rc1-git10, which I was using for
>  the purpose of helping to debug a different problem.
>  I am not sure if the problem is easily reproducible... if
>  needed I'll try with the latest fc7 kernel.
> 
>  The dump listed below was extracted from /var/log/messages
>  and was generated after copying > 1GB of data to a DVD-RAM,
>  udf format. When it seemed to have stopped (after 2 hours!)
>  I issued the eject command. It then seemed to write more
>  data to the disk (possibly part of the data had not been
>  really copied, and it was syncing) and a few minutes after
>  this notice came up.
  Thanks for report. It looks like a problem in UDF. Actually I think
I've already seen a similar report. Are there any IO errors in the logs
or anything else suspitious?

								Honza

> Nov 20 23:30:23 *** kernel: kernel BUG at fs/inode.c:191!
> Nov 20 23:30:23 *** kernel: invalid opcode: 0000 [1] SMP 
> Nov 20 23:30:23 *** kernel: CPU 1 
> Nov 20 23:30:23 *** kernel: Modules linked in: udf usb_storage autofs4 sunrpc cpufreq_ondemand reiserfs dm_mirror dm_mod video output sbs sbshc battery ac power_supply ipv6 snd_intel8x0 snd_ac97_codec ac97_bus snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd sr_mod button forcedeth soundcore cdrom k8temp pcspkr snd_page_alloc pata_amd hwmon i2c_nforce2 i2c_core sg sata_nv ata_generic libata sd_mod scsi_mod ext3 jbd mbcache ehci_hcd ohci_hcd uhci_hcd
> Nov 20 23:30:23 *** kernel: Pid: 11762, comm: umount Not tainted 2.6.24-rc1-git10 #0
> Nov 20 23:30:23 *** kernel: RIP: 0010:[<ffffffff810a9886>]  [<ffffffff810a9886>] destroy_inode+0xd/0x47
> Nov 20 23:30:23 *** kernel: RSP: 0018:ffff81001ac47dd8  EFLAGS: 00010202
> Nov 20 23:30:23 *** kernel: RAX: 0000000000000001 RBX: ffff81010ac0b548 RCX: ffff81010ac0b548
> Nov 20 23:30:23 *** kernel: RDX: 0000000000000007 RSI: ffff81010ac0b750 RDI: ffff81010ac0b548
> Nov 20 23:30:23 *** kernel: RBP: ffff81010ac0b548 R08: 8000000000000000 R09: ffffffff81405a18
> Nov 20 23:30:23 *** kernel: R10: 0000000000000000 R11: ffff81001ac47d58 R12: 00000000000001ba
> Nov 20 23:30:23 *** kernel: R13: ffff81001ac47e18 R14: ffff81001aba6068 R15: 0000000000000000
> Nov 20 23:30:23 *** kernel: FS:  00002b38ac69f6c0(0000) GS:ffff810100001800(0000) knlGS:0000000000000000
> Nov 20 23:30:23 *** kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> Nov 20 23:30:23 *** kernel: CR2: 00000000008cb370 CR3: 000000001ac6a000 CR4: 00000000000006e0
> Nov 20 23:30:23 *** kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> Nov 20 23:30:23 *** kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> Nov 20 23:30:23 *** kernel: Process umount (pid: 11762, threadinfo ffff81001ac46000, task ffff81010492c000)
> Nov 20 23:30:23 *** kernel: Stack:  ffff81010ac0b558 ffffffff810a9e84 0000000000000018 ffff8101059af048
> Nov 20 23:30:23 *** kernel:  ffff81010610a8c0 0000000000004a57 ffff81010610a8c0 ffffffff810aa160
> Nov 20 23:30:23 *** kernel:  ffff81010ac0b7d8 ffff81001aba6058 0000000000000000 ffff81010610a800
> Nov 20 23:30:23 *** kernel: Call Trace:
> Nov 20 23:30:23 *** kernel:  [<ffffffff810a9e84>] dispose_list+0xae/0xe0
> Nov 20 23:30:23 *** kernel:  [<ffffffff810aa160>] invalidate_inodes+0xc1/0xdf
> Nov 20 23:30:23 *** kernel:  [<ffffffff81099445>] generic_shutdown_super+0x39/0xd2
> Nov 20 23:30:23 *** kernel:  [<ffffffff810994eb>] kill_block_super+0xd/0x1e
> Nov 20 23:30:23 *** kernel:  [<ffffffff810995b6>] deactivate_super+0x6a/0x83
> Nov 20 23:30:23 *** kernel:  [<ffffffff810ac1cd>] sys_umount+0x23d/0x273
> Nov 20 23:30:23 *** kernel:  [<ffffffff8109abde>] sys_newstat+0x19/0x31
> Nov 20 23:30:23 *** kernel:  [<ffffffff81116a90>] __up_write+0x27/0xf3
> Nov 20 23:30:23 *** kernel:  [<ffffffff8100be8e>] system_call+0x7e/0x83
> Nov 20 23:30:23 *** kernel: 
> Nov 20 23:30:23 *** kernel: 
> Nov 20 23:30:23 *** kernel: Code: 0f 0b eb fe 48 89 df e8 e7 39 04 00 48 8b 83 f8 00 00 00 48 
> Nov 20 23:30:23 *** kernel: RIP  [<ffffffff810a9886>] destroy_inode+0xd/0x47
> Nov 20 23:30:23 *** kernel:  RSP <ffff81001ac47dd8>
> Nov 20 23:30:23 *** kernel: WARNING: at kernel/exit.c:917 do_exit()
> Nov 20 23:30:23 *** kernel: 
> Nov 20 23:30:23 *** kernel: Call Trace:
> Nov 20 23:30:23 *** kernel:  [<ffffffff8103c55a>] do_exit+0x4f/0x768
> Nov 20 23:30:23 *** kernel:  [<ffffffff8100d64d>] kernel_math_error+0x0/0x71
> Nov 20 23:30:23 *** kernel:  [<ffffffff8100da73>] do_invalid_op+0x85/0x8f
> Nov 20 23:30:23 *** kernel:  [<ffffffff810a9886>] destroy_inode+0xd/0x47
> Nov 20 23:30:23 *** kernel:  [<ffffffff8104bd77>] bit_waitqueue+0x10/0x9f
> Nov 20 23:30:23 *** kernel:  [<ffffffff8104be44>] wake_up_bit+0x11/0x22
> Nov 20 23:30:23 *** kernel:  [<ffffffff810b23cf>] __writeback_single_inode+0x2a5/0x2b7
> Nov 20 23:30:23 *** kernel:  [<ffffffff882cb85c>] :udf:udf_current_aext+0xe8/0x143
> Nov 20 23:30:23 *** kernel:  [<ffffffff81251039>] error_exit+0x0/0x51
> Nov 20 23:30:23 *** kernel:  [<ffffffff810a9886>] destroy_inode+0xd/0x47
> Nov 20 23:30:23 *** kernel:  [<ffffffff810a9882>] destroy_inode+0x9/0x47
> Nov 20 23:30:23 *** kernel:  [<ffffffff810a9e84>] dispose_list+0xae/0xe0
> Nov 20 23:30:23 *** kernel:  [<ffffffff810aa160>] invalidate_inodes+0xc1/0xdf
> Nov 20 23:30:23 *** kernel:  [<ffffffff81099445>] generic_shutdown_super+0x39/0xd2
> Nov 20 23:30:23 *** kernel:  [<ffffffff810994eb>] kill_block_super+0xd/0x1e
> Nov 20 23:30:23 *** kernel:  [<ffffffff810995b6>] deactivate_super+0x6a/0x83
> Nov 20 23:30:23 *** kernel:  [<ffffffff810ac1cd>] sys_umount+0x23d/0x273
> Nov 20 23:30:23 *** kernel:  [<ffffffff8109abde>] sys_newstat+0x19/0x31
> Nov 20 23:30:23 *** kernel:  [<ffffffff81116a90>] __up_write+0x27/0xf3
> Nov 20 23:30:23 *** kernel:  [<ffffffff8100be8e>] system_call+0x7e/0x83
> Nov 20 23:30:23 *** kernel: 
-- 
Jan Kara <jack@suse.cz>
SuSE CR Labs