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From: Christoph Lameter <clameter@sgi.com>
To: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	mpm@selenic.com, "ast@domdv.de" <ast@domdv.de>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] slab: deal with NULL pointers passed to kmem_cache_free
Date: Tue, 20 Mar 2007 11:41:37 -0700 (PDT)	[thread overview]
Message-ID: <Pine.LNX.4.64.0703201140350.8561@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <84144f020703200006q5fbd7835y216426e77e48cc71@mail.gmail.com>

On Tue, 20 Mar 2007, Pekka Enberg wrote:

> On 3/19/07, Andrew Morton <akpm@linux-foundation.org> wrote:
> > The BUG_ON (at least) should probably be moved into CONFIG_DEBUG_SLAB.
> 
> No it shouldn't. Letting non-slab pages pass through causes nasty and
> hard to debug problems which is why we have the BUG_ONs in the first
> place:

CONFIG_DEBUG_SLAB is there in order to handle these nasty and hard to 
debug problems. Usually non-slab pages are not passed to kmem_cache_free.


  reply	other threads:[~2007-03-20 18:42 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-03-19  8:27 [PATCH] slab: deal with NULL pointers passed to kmem_cache_free Pekka J Enberg
2007-03-19 11:31 ` Andrew Morton
2007-03-19 11:40   ` Pekka J Enberg
2007-03-19 17:08 ` Christoph Lameter
2007-03-19 17:31   ` Pekka J Enberg
2007-03-19 20:49   ` Matt Mackall
2007-03-19 21:10     ` Andrew Morton
2007-03-19 21:25       ` Pekka Enberg
2007-03-19 21:41         ` Andrew Morton
2007-03-19 21:49           ` Matt Mackall
2007-03-20  7:06           ` Pekka Enberg
2007-03-20 18:41             ` Christoph Lameter [this message]
2007-03-21 11:42               ` Pekka J Enberg
2007-03-20  7:14           ` Pekka Enberg
2007-03-20  7:39             ` Eric Dumazet
2007-03-20  7:47               ` Pekka J Enberg
2007-03-20  7:56                 ` Eric Dumazet
2007-03-21 10:11                 ` Jarek Poplawski
2007-03-21 12:13                   ` Pekka Enberg
2007-03-21 13:31                     ` Jarek Poplawski
2007-03-21 13:36                       ` Pekka J Enberg
2007-03-21 14:11                         ` Rafael J. Wysocki
2007-03-21 14:41                           ` Pekka Enberg
2007-03-21 16:30                             ` Andrew Morton
2007-03-21 17:54                               ` Jörn Engel
2007-03-21 18:32                               ` Pekka Enberg
2007-03-21 14:45                         ` Jarek Poplawski
2007-03-19 22:04       ` Jörn Engel
2007-03-19 21:16     ` Christoph Lameter
2007-03-19 21:44       ` Matt Mackall
2007-03-19 23:32 ` Andreas Steinmetz

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