Re: [PATCH] slab: deal with NULL pointers passed to kmem_cache_free

From: Christoph Lameter
Date: Tue Mar 20 2007 - 14:42:48 EST


On Tue, 20 Mar 2007, Pekka Enberg wrote:

> On 3/19/07, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> 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.

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