How to debug an Oops on FC4 2.6 Kernel

From: Peter Van
Date: Thu Mar 30 2006 - 14:35:53 EST


Hi,

My computer hung af few day ago for no apparent reason requiring a reboot and clear.
/var/log/messages has an Oops log but I don't know how to use the Oops log to determine the cause of the problem. According to some posts, ksymoops can't be used
on a 2.6 kernel.

When I run kysmoops I get:

Error (regular_file): read_ksyms stat /proc/ksyms failed
No modules in ksyms, skipping objects
No ksyms, skipping lsmod
Error (regular_file): read_system_map stat /usr/src/linux/System.map failed
Warning (merge_maps): no symbols in merged map

As the message says, the file /proc/ksyms does not exist on my computer.

Can someone please advise me on how to process or reference any documentation?


Here is the Oops output and the output of several other commands.

Thank You
Peter Van



Mar 24 23:04:36 tan kernel: ------------[ cut here ]------------
Mar 24 23:04:36 tan kernel: kernel BUG at fs/jbd/transaction.c:271!
Mar 24 23:04:36 tan kernel: invalid operand: 0000 [#2]
Mar 24 23:04:36 tan kernel: SMP
Mar 24 23:04:36 tan kernel: Modules linked in: nfs lockd loop radeon drm parport_pc lp parport autofs4 rfcomm l2cap bluetooth sunrpc
md5 ipv6 dm_mod video button battery ac ohci1394 ieee1394 uhci_hcd ehci_hcd shpchp hw_random i2c_i801 i2c_core snd_intel8x0 snd_ac9
7_codec 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 soundcor
e snd_page_alloc sk98lin floppy ext3 jbd raid1 ata_piix libata sd_mod scsi_mod
Mar 24 23:04:36 tan kernel: CPU: 1
Mar 24 23:04:36 tan kernel: EIP: 0060:[<f88a1461>] Not tainted VLI
Mar 24 23:04:36 tan kernel: EFLAGS: 00010296 (2.6.11-1.1369_FC4smp)
Mar 24 23:04:36 tan kernel: EIP is at journal_start+0x51/0xbb [jbd]
Mar 24 23:04:36 tan kernel: eax: 00000073 ebx: e2ec61a0 ecx: c035ea4c edx: 00000296
Mar 24 23:04:36 tan kernel: esi: f7810e00 edi: f7d74000 ebp: 000007c0 esp: f7d74a88
Mar 24 23:04:36 tan kernel: ds: 007b es: 007b ss: 0068
Mar 24 23:04:36 tan kernel: Process kswapd0 (pid: 161, threadinfo=f7d74000 task=f7d67550)
Mar 24 23:04:36 tan kernel: Stack: f88a8608 f88aeba2 f88a9667 0000010f f88a8668 f88de6d1 c9ea88dc c101b220
Mar 24 23:04:36 tan kernel: f88de703 00000000 c9ea89a4 c9ea8994 0000000e c0144f35 00000000 f88de6d1
Mar 24 23:04:36 tan kernel: c101b220 000004b9 c9ea8994 c0146baf 00000800 00000001 f7d74c34 00000001
Mar 24 23:04:36 tan kernel: Call Trace:
Mar 24 23:04:36 tan kernel: [<f88de6d1>] ext3_prepare_write+0x0/0x132 [ext3]
Mar 24 23:04:36 tan kernel: [<f88de703>] ext3_prepare_write+0x32/0x132 [ext3]
Mar 24 23:04:36 tan kernel: [<c0144f35>] find_lock_page+0x8c/0xa4
Mar 24 23:04:36 tan kernel: [<f88de6d1>] ext3_prepare_write+0x0/0x132 [ext3]
Mar 24 23:04:36 tan kernel: [<c0146baf>] generic_file_buffered_write+0x27d/0x60c
Mar 24 23:04:36 tan kernel: [<c01d5b6c>] vsnprintf+0x32e/0x5f6
Mar 24 23:04:36 tan kernel: [<c01264ba>] current_fs_time+0x5a/0x75
Mar 24 23:04:36 tan kernel: [<c017a238>] inode_update_time+0x2d/0x99
Mar 24 23:04:36 tan kernel: [<c01471f0>] __generic_file_aio_write_nolock+0x2b2/0x4fa
Mar 24 23:04:36 tan kernel: [<c024b829>] cfq_merge+0x0/0xcd
Mar 24 23:04:36 tan kernel: [<c014767f>] generic_file_aio_write+0x6f/0xda
Mar 24 23:04:36 tan kernel: [<f88dc266>] ext3_file_write+0x24/0x96 [ext3]
Mar 24 23:04:36 tan kernel: [<c0161eeb>] do_sync_write+0x9e/0xec
Mar 24 23:04:36 tan kernel: [<c0126526>] getnstimeofday+0xd/0x2f
Mar 24 23:04:36 tan kernel: [<c0134b3b>] autoremove_wake_function+0x0/0x37
Mar 24 23:04:36 tan kernel: [<c013ec84>] do_acct_process+0x403/0x426
Mar 24 23:04:36 tan kernel: [<c0121d6b>] vprintk+0x1f5/0x2a9

uname -a :
Linux tan 2.6.15-1.1833_FC4smp #1 SMP Wed Mar 1 23:56:51 EST 2006 i686


cat /proc/version:

Linux version 2.6.15-1.1833_FC4smp (bhcompile@xxxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc version 4.0.2 20051125 (Red Hat 4.0.2-8)) #1 SMP Wed Mar 1 23:56:51 EST 2006


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