Bug#590658: BUG in kmem_cache_alloc called by gss_create_cred

[Jonathan Nieder <jrnieder@gmail.com>]

tags 590658 + moreinfo
quit

Hi Victor,

Victor Gomes Do Vale wrote:

> I have a desktop machine running debian lenny, with nfs4/kerberos
> for home directory accounting, which works great on my own machine.
>
> But on a specific machine, it kernel panics all nights, when the
> user come back the day, the machine is freezed, sometime I have logs
> of the kernel Oops, when i have an open ssh connection to the
> machine :
[...]
> It seems to happened always on the same stack state
> (kmem_cache_alloc/gss... etc ...)
> I keep the machine up to date, but it does not correct the problem. If
> someone could correct that ...
[...]
> Well, I tested the memory with memtest86, it gave me nothing (2 pass clear).
> I booted and set the X with vesa mode and nvidia unloaded yesterday, the 
> machine was dead this morning.

Thanks for reporting it.  Basic questions:

 - Are you still using this machine?  If so, how are you coping? ---
   what kernel do you use, did you find any workarounds, etc

 - If the slab corruption stopped happening at some point, do you
   remember when and whether anything interesting happened at the
   time?  /var/log/dpkg.log* might have clues.

 - If the symptoms are still reproducible, please attach a log of the
   kernel's initialization (you can get it by capturing full "dmesg"
   output immediately after booting or by collecting from
   /var/log/dmesg*).

 - I assume this was not a regression, and that you always
   experienced these problems on this machine?

 - Any other clues or weird symptoms would be useful, too.

Hope that helps,
Jonathan