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Message-ID: <84144f020804020418j51eb0e63s82f438398ff1b6ad@mail.gmail.com>
Date: Wed, 2 Apr 2008 14:18:34 +0300
From: "Pekka Enberg" <penberg@cs.helsinki.fi>
To: "Peter Zijlstra" <a.p.zijlstra@chello.nl>
Subject: Re: kmemcheck caught read from freed memory (cfq_free_io_context)
Cc: "Jens Axboe" <jens.axboe@oracle.com>, paulmck@linux.vnet.ibm.com,
       "Ingo Molnar" <mingo@elte.hu>,
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On Wed, 2008-04-02 at 14:11 +0300, Pekka Enberg wrote:
> > Nothing. So you cannot access the object at all after you've called
> > kmem_cache_free(). SLAB_RCU or no SLAB_RCU.

On Wed, Apr 2, 2008 at 2:14 PM, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
>  Well, you can, but you have to validate you get the object you were
>  looking for.

Yes. I keep forgetting that. Sorry.