lkml.org 
[lkml]   [2004]   [Feb]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [BUG] 2.6.3 Slab corruption: errors are triggered when memory exceeds 2.5GB (correction)

Yes the machine is using ECC though I will need to confirm tommorrow that
it is enabled, from memory it is. I am currently running memtest over the
memory however it is limited to testing 2GB because it uses malloc, so this
is not a reliable test.
I will continue to swap the memory modules to see if I can find a failed
module.

If this fails to help I will then look for the offending atomic_t or
spinlock_t.

Thanks for the replies
Darren

Mon, 23 Feb 2004, Andrew Morton wrote:

> Manfred Spraul <manfred@colorfullife.com> wrote:
> >
> > From your logs:
> >
> > >Feb 23 14:54:24 calypso kernel: Slab corruption: start=e00000017e84ea00, expend=e00000017e84f1ff, problemat=e00000017e84f020
> > >Feb 23 14:54:24 calypso kernel: Last user: [<a0000001003c9f30>](kfree_skbmem+0x30/0x80)
> > >Feb 23 14:54:24 calypso kernel: Data: ************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************!
> **!
> > ***************************************
> > >Feb 23 14:54:28 calypso kernel: **************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************6A *************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************!
> **!
> > ***************************************
> > >Feb 23 14:54:28 calypso kernel: ************************************************************A5
> > >
> > >
> > "6a" instead of 0x6b. One bit is wrong, this is often an indication of a
> > hardware problem. Do you use ECC memory and is ECC enabled in the BIOS?
>
> Actually, it's often caused by someone doing atomic_dec_and_test() against
> something which was already freed. Or spin_lock(). One would need to work
> out what field is at that offset. If it is an atomic_t or a spinlock_t,
> there you are.
>
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
--------------------------------------------------
Darren Williams <dsw AT gelato.unsw.edu.au>
Gelato@UNSW <www.gelato.unsw.edu.au>
--------------------------------------------------
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:01    [from the cache]
©2003-2011 Jasper Spaans