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Old 03-30-2012, 08:06 PM
Jonathan Nieder
 
Default Bug#666442: Kernel Panic at boot up

reassign 666442 src:linux-2.6 2.6.32-41
quit

Buford Peek wrote:

> I am getting a kernel panic on a subset of my machines on bootup. It
> usually happens on first boot and then when you reboot it, it boots
> normally..

Thanks. Is the panic reproducible as long as you start from a cold
boot?

If you can get a full log using netconsole[1] or a serial console[2],
that would be very helpful. A log from a successful boot (a warm boot
after the boot failure or a cold boot from unpatched v2.6.32.y from
kernel.org) would also be interesting.

Hope that helps,
Jonathan

[1] http://www.kernel.org/doc/Documentation/networking/netconsole.txt
[2] http://www.kernel.org/doc/Documentation/serial-console.txt



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Old 03-30-2012, 09:06 PM
Jonathan Nieder
 
Default Bug#666442: Kernel Panic at boot up

reassign 658578 src:linux-2.6 2.6.32-41
forcemerge 666442 658578 634023
severity 666442 important
quit

Buford Peek wrote:

> Yes it does fail regularly on a cold boot. and fails regularly on a
> warm boot.

You mentioned before that when you reboot it, it boots normally.

> We have iDRAC on these systems and we have a video capture of the
> last boot. The file extension is .dvc file..I am not sure what kinda
> a player you will need to play this file..I have included three more
> screen shots of the whole panic and right before things started
> going wrong.

Perfect, thanks. The image shows a NULL pointer dereference (for a
field at offset 0x40) in elv_queue_empty+0x12.

Merging with some similar reports, though I am not confident they
have the same cause. I guess I would suggest testing with
2.6.32-34squeeze1 and 2.6.32-35 from snapshot.debian.org (or similarly
searching through historical kernels to find which introduces the
bug).

Thanks,
Jonathan



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