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From: Marc Duponcheel <marc@offline.be>
To: David Rientjes <rientjes@google.com>
Cc: Andy Lutomirski <luto@amacapital.net>,
	Mel Gorman <mgorman@suse.de>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Marc Duponcheel <marc@offline.be>
Subject: Re: [3.6 regression?] THP + migration/compaction livelock (I think)
Date: Wed, 14 Nov 2012 14:21:47 +0100	[thread overview]
Message-ID: <20121114132146.GA13122@offline.be> (raw)
In-Reply-To: <alpine.DEB.2.00.1211131750200.408@chino.kir.corp.google.com>

On 2012 Nov 13, David Rientjes wrote:
> On Wed, 14 Nov 2012, Marc Duponcheel wrote:
> 
> >  Hi all, please let me know if there is are patches you want me to try.
> > 
> >  FWIW time did not stand still and I run 3.6.6 now.
> 
> Hmm, interesting since there are no core VM changes between 3.6.2, the 
> kernel you ran into problems with, and 3.6.6.

 Hi David

 I have not tried yet to repro #49361 on 3.6.6, but, as you say, if
there are no core VM changes, I am confident I can do so just by doing

# echo always > /sys/kernel/mm/transparent_hugepage/enabled

 I am at your disposal to test further, and, if there are patches, to
try them out.

 Note that I only once experienced a crash for which I could not find
relevant info in logs. But the hanging processes issue could always be
reproduced consistently.

 have a nice day

--
 Marc Duponcheel
 Velodroomstraat 74 - 2600 Berchem - Belgium
 +32 (0)478 68.10.91 - marc@offline.be

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  reply	other threads:[~2012-11-14 13:21 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-13 22:13 Andy Lutomirski
2012-11-13 23:11 ` David Rientjes
2012-11-13 23:25   ` Andy Lutomirski
2012-11-13 23:41     ` David Rientjes
2012-11-13 23:45       ` Andy Lutomirski
2012-11-13 23:54         ` David Rientjes
2012-11-14  1:22           ` Marc Duponcheel
2012-11-14  1:51             ` David Rientjes
2012-11-14 13:21               ` Marc Duponcheel [this message]
2012-11-14 10:01       ` Mel Gorman
2012-11-14 13:29         ` Marc Duponcheel
2012-11-14 21:50           ` David Rientjes
2012-11-15  1:14             ` Marc Duponcheel
2012-11-17  0:18               ` Marc Duponcheel
2012-11-18 22:55                 ` David Rientjes
2012-12-05 19:23                   ` Andy Lutomirski

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