Re: [PATCH] slub: fix slab_pad_check() and SLAB_DESTROY_BY_RCU

From: Eric Dumazet
Date: Thu Sep 03 2009 - 09:47:31 EST

Zdenek Kabelac a écrit :
> 2009/9/3 Eric Dumazet <eric.dumazet@xxxxxxxxx>:
>> Zdenek Kabelac a écrit :
>>> Well I'm not noticing any ill behavior - also note - rcu_barrier() is
>>> there before the cache is destroyed.
>>> But as I said - it's just my shot into the dark - which seems to work for me...
>> Reading again your traces, I do believe there are two bugs in slub
>> Maybe not explaining your problem, but worth to fix !
>> Thank you
>> [PATCH] slub: fix slab_pad_check() and SLAB_DESTROY_BY_RCU
> Ok - I can confirm that this patch fixes my reboot problem.
> Thanks
> Zdenek

Good news !

Hmm... but you had a problem with a 2.6.29.something kernel if I remember well ?

At that time, conntrack did not use SLAB_DESTROY_BY_RCU yet.

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