linux-kernel - Re: [PATCH 0/4] Fix compaction stalls due to accounting errors in isolated page accounting

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Date:	Tue, 19 Jul 2011 10:16:47 +0100
From:	Mel Gorman <mgorman@...e.de>
To:	Thomas Sattler <tsattler@....de>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Minchan Kim <minchan.kim@...il.com>,
	Ury Stankevich <urykhy@...il.com>,
	Andi Kleen <andi@...stfloor.org>,
	linux-mm <linux-mm@...ck.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/4] Fix compaction stalls due to accounting errors in
 isolated page accounting

On Sun, Jul 17, 2011 at 10:52:12AM +0200, Thomas Sattler wrote:
> Hi there ...
> 
> > Re-verification from testers that these patches really do fix their
> > problems would be appreciated. Even if hangs disappear, please confirm
> > that the values for nr_isolated_anon and nr_isolated_file in *both*
> > /proc/zoneinfo and /proc/vmstat are sensible (i.e. usually zero).
> 
> I applied these patches to 2.6.38.8 and it run for nearly a month
> without any problems. Even Though I did not check nr_isolated_*.
> As (at least) patch3 made it into 2.6.39.3 I did not apply the
> others any more. And it occurred again this morning:
> 

I assume you mean it occured again on 2.6.39.3 and so have submitted
them to -stable for 2.6.39.x. You're cc'd so you should hear when or if
they get picked up.

Thanks for testing.

-- 
Mel Gorman
SUSE Labs
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