linux-kernel - Re: [patch 05/11 -mmotm] oom: fix possible oom_dump

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Message-Id: <20090511141138.3e8118ab.akpm@linux-foundation.org>
Date:	Mon, 11 May 2009 14:11:38 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	David Rientjes <rientjes@...gle.com>
Cc:	gregkh@...e.de, npiggin@...e.de, mel@....ul.ie,
	a.p.ziljstra@...llo.nl, cl@...ux-foundation.org,
	dave@...ux.vnet.ibm.com, san@...roid.com, arve@...roid.com,
	linux-kernel@...r.kernel.org
Subject: Re: [patch 05/11 -mmotm] oom: fix possible oom_dump_tasks NULL
 pointer

On Sun, 10 May 2009 15:07:16 -0700 (PDT)
David Rientjes <rientjes@...gle.com> wrote:

> When /proc/sys/vm/oom_dump_tasks is enabled, it is possible to get a NULL
> pointer for tasks that have detached mm's since task_lock() is not held
> during the tasklist scan.

ok.  But a better changelog would have told us how the patch fixes the
problem?


This patch series is partially core MM and partially drivers/staging. 
I don't normally handle staging things, so I'd need to be cherrypicking
from this lot.  Is there any interdependency between the two things?


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