linux-kernel - Re: [PATCH] nommu: fix kobjsize() for SLOB and SLUB

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Message-ID: <24762.1211983758@redhat.com>
Date:	Wed, 28 May 2008 15:09:18 +0100
From:	David Howells <dhowells@...hat.com>
To:	unlisted-recipients:; (no To-header on input)
Cc:	dhowells@...hat.com, Pekka J Enberg <penberg@...helsinki.fi>,
	clameter@....com, mpm@...enic.com, lethal@...ux-sh.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] nommu: fix kobjsize() for SLOB and SLUB

David Howells <dhowells@...hat.com> wrote:

> Works for SLAB and SLUB.  SLOB breaks well before getting to anything these
> patches affect.

Okay...  The problem with SLOB is that it can return large objects (8Kb in this
case) that aren't 8-byte aligned.  This screws up FRV as it expects to be able
to use load and store-double instructions, which fault if they don't get
8-byte (double register) alignment.

David
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