Re: kmalloc zero size changes break i386

From: Pekka J Enberg
Date: Fri Jul 20 2007 - 03:12:59 EST


Hi Roland,

On Thu, 19 Jul 2007, Roland Dreier wrote:
> [ 1350.668590] Unable to handle kernel NULL pointer dereference at 0000000000000028 RIP:
> [ 1350.674068] [<ffffffff8027b373>] __kmalloc+0x51/0xaf

There's some heavy-duty function inlining going on in__kmalloc so could
you please work out the exact location of the oops as described in
Documentation/BUG-HUNTING (look for the "use GDB to translate" part).

And to double-check, this is SLAB with CONFIG_DEBUG_SLAB enabled? Do you
see this with SLUB?

Pekka
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