linux-kernel - Re: [PATCH 0/3] Fix migration races in rmap

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Message-ID: <20100428154508.GT510@random.random>
Date:	Wed, 28 Apr 2010 17:45:08 +0200
From:	Andrea Arcangeli <aarcange@...hat.com>
To:	Mel Gorman <mel@....ul.ie>
Cc:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Christoph Lameter <cl@...ux.com>,
	Linux-MM <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Minchan Kim <minchan.kim@...il.com>,
	Rik van Riel <riel@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 0/3] Fix migration races in rmap_walk() V2

On Wed, Apr 28, 2010 at 04:23:54PM +0100, Mel Gorman wrote:
> Is it possible to delay the linkage like that? As arguments get copied into
> the temporary stack before it gets moved, I'd have expected the normal fault
> path to prepare and attach the anon_vma. We could special case it but
> that isn't very palatable either.

I'm not sure what is more palatable, but I feel it should be fixed in
execve.
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