Re: memory corruptor in .18rc1-git

[Willy Tarreau <w@1wt.eu>]

On Thu, Jul 13, 2006 at 06:30:29PM -0400, Dave Jones wrote:
> On Thu, Jul 13, 2006 at 03:24:25PM -0700, Andrew Morton wrote:
> 
>  > > I've up'd the speed of the serial console, in the hope that more chars
>  > > make it over the wire before reboot should this happen again.
>  > 
>  > Are you using SMP?  We have a known slab locking bug.
> 
> Yes, dual EM64T's with HT.
> 
>  > There have been a couple of slab.c patches committed today, but neither of
>  > them appear to actually fix the bug.
>  > 
>  > The below should fix it, and testing this (disable lockdep) would be
>  > useful.
> 
> I can give it a shot, but as it takes a while for this to manifest, I may
> not be able to say for certain whether it fixes it or not.

Then you might consider slightly changing the debug messages, because they
are identical in list_add and list_del. Having a way to differenciate
between the two functions might give one more indication.

> 		Dave

Willy

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