linux-kernel - Re: [PATCH v2] mm: slab: Verify the nodeid passed to ____cache_alloc

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Message-ID: <0000013d12d36816-5dd04154-a1ab-4a0e-977d-9690c597f12e-000000@email.amazonses.com>
Date:	Mon, 25 Feb 2013 19:27:57 +0000
From:	Christoph Lameter <cl@...ux.com>
To:	Pekka Enberg <penberg@...nel.org>
cc:	Rik van Riel <riel@...hat.com>, Aaron Tomlin <atomlin@...hat.com>,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	glommer@...allels.com
Subject: Re: [PATCH v2] mm: slab: Verify the nodeid passed to
 ____cache_alloc_node

On Mon, 25 Feb 2013, Rik van Riel wrote:

> On 02/25/2013 12:18 PM, Aaron Tomlin wrote:
>
> > mm: slab: Verify the nodeid passed to ____cache_alloc_node
> >
> > If the nodeid is > num_online_nodes() this can cause an
> > Oops and a panic(). The purpose of this patch is to assert
> > if this condition is true to aid debugging efforts rather
> > than some random NULL pointer dereference or page fault.
> >
> > Signed-off-by: Aaron Tomlin <atomlin@...hat.com>
>
> Reviewed-by: Rik van Riel <riel@...hat.com>

It may be helpful to cc the slab maintainers...
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