Re: [linux-next-20130422] Bug in SLAB?

From: Tetsuo Handa
Date: Mon Apr 29 2013 - 11:28:31 EST

Glauber Costa wrote:
> If I am right, the following (untested) patch should solve the problem.

This patch did not help;

kmalloc(8 * 1024 * 1024, GFP_KERNEL)

still causes both

include/linux/slab_def.h:136: warning: array subscript is above array bounds


BUG: unable to handle kernel NULL pointer dereference at 00000058
IP: [<c10b9d76>] kmem_cache_alloc+0x26/0xb0


Christoph Lameter wrote:
> What is MAX_ORDER on the architecture?

In my environment (x86_32), the constants are

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