Bad things happening to journaled filesystem machines; Was: Oopsin kjournald

[Jeffrey E. Hundstad]

I've had 4 machines do the similiar things.  It happens during backups 
or during updatedb.  This has happened on 2.6.9, 2.6.10, 2.6.10-ac7, and 
2.6.10-ac8.  I've seen several similiar reports with journaled file 
systems.  I use XFS exclusively; but have seen reports on XFS and EXT3.  
I would report something more useful but what I'm usually left with is 
XFS unmounted and nothing useful on the screen.  This has been on Xeon, 
Pentium-3 and Athlon systems. ...wish I could report more but perhaps it 
will add /part/ of a data point.

--
jeffrey hundstad


Roland Rosenfeld wrote:

> In the last week I got the following Oops five times on two machines,
> when they are under very heavy load  (mailserver based on Debian sarge
> with postfix 2.1.4) when the load is >4 for some hours.
>
> ---------------------- schnipp --------------------------------
> Unable to handle kernel NULL pointer dereference at virtual address 0000000c
> printing eip:
> c01a65a5
> *pde = 00000000
> Oops: 0002 [#1]
> PREEMTP SMP
> Modules linked in: e1000 tg3 bonding rtc unix
> CPU:    0
> EIP:    0060:[<c01a65a5>]    Not tainted VLI
> EFLAGS: 00010282   (2.6.10-686-nc-smp-1)
> EIP is at jounral_commit_transaction+0x315/0x12f0
> eax: f157117c   ebx: 00000000   ecx: 00000000   edx: f7cffb80
> es: 007b   es: 007b   ss: 0068
> Process kjournald (pid: 171, threadinfo=f6f7e000 task=f6e92520)
> Stack: e2efd5cc e2efd5cc 00000008 000011da 00000000 f6e97ac0 f6f7e000 f6f7e000
>       f6ef6bb8 f6e97a14 00000000 00000000 00000000 00000000 00000000 f0fa9dac
>       e8a39ecc 000011da 00000000 f6e92520 c012d580 f6f7fe44 f6f7fe44 00000000
> Call Trace:
> [<c012d580>] autoremove_wake_function+0x0/0x60
> [<c012d580>] autoremove_wake_function+0x0/0x60
> [<c01a9af5>] kjounald+0xe5/0x240
> [<c011b837>] do_exit+0x2d7/0x480
> [<c012d580>] autoremove_wake_function+0x0/0x60
> [<c012d580>] autoremove_wake_function+0x0/0x60
> [<c0102572>] ret_from_fork+0x6/0x14
> [<c01a99f0>] commit_timeout+0x0/0x10
> [<c01a9a10>] kjournald+0x0/0x240
> [<c01007f5>] kernel_thread_helper+0x5/0x10
> Code: 00 8b 45 20 85 c0 75 be 8b 44 24 38 85 c0 0f 85 16 0d 00 00 8b 45 18 85 c0 0f 84 83 00 00 00 be 00 e0 ff ff 21 e6 8b 78 20 8b 1f <f0> ff 43 0c 8b 03 a8 04 0f 85 b3 0c 00 00 89 5c 24 04 8b 94 24
> <6>note: kjournald[171] exited with preempt_count 1
> ---------------------- schnipp --------------------------------
>
> I run a 2.6.10 kernel (with aacraid 1.1.5 2372 driver from Adaptec,
> everything else vanilla) on Dual Xeon machines. The kernel has ext3fs
> and XFS compiled in but currently all filesystems are ext3.
>
> In the logs I don't see anything, because the machines freeze with the
> above message (I retyped the messages from the screen, so there may be
> some typos, if necessary I have a screenshot here to correct some
> misspellings).
>
> What can I do to fix this problem?  Using google I didn't find a hint
> for further search, but my kernel knowledge is very limited :-|
>
> Tschoeeee
>
>        Roland
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