From: James Bottomley <James.Bottomley@suse.de>
To: Mel Gorman <mgorman@suse.de>
Cc: Mel Gorman <mgorman@novell.com>, Jan Kara <jack@suse.cz>,
colin.king@canonical.com, Chris Mason <chris.mason@oracle.com>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
linux-mm <linux-mm@kvack.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-ext4 <linux-ext4@vger.kernel.org>
Subject: Re: [BUG] fatal hang untarring 90GB file, possibly writeback related.
Date: Fri, 06 May 2011 14:14:37 -0500 [thread overview]
Message-ID: <1304709277.12427.29.camel@mulgrave.site> (raw)
In-Reply-To: <20110506154444.GG6591@suse.de>
On Fri, 2011-05-06 at 16:44 +0100, Mel Gorman wrote:
> Colin and James: Did you happen to switch from SLAB to SLUB between
> 2.6.37 and 2.6.38? My own tests were against SLAB which might be why I
> didn't see the problem. Am restarting the tests with SLUB.
Aargh ... I'm an idiot. I should have thought of SLUB immediately ...
it's been causing oopses since debian switched to it.
So I recompiled the 2.6.38.4 stable kernel with SLAB instead of SLUB and
the problem goes away ... at least from three untar runs on a loaded
box ... of course it could manifest a few ms after I send this email ...
There are material differences, as well: SLAB isn't taking my system
down to very low memory on the untar ... it's keeping about 0.5Gb listed
as free. SLUB took that to under 100kb, so it could just be that SLAB
isn't wandering as close to the cliff edge?
James
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next prev parent reply other threads:[~2011-05-06 19:14 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-27 16:09 [BUG] fatal hang untarring 90GB file, possibly writeback related James Bottomley
2011-04-27 16:33 ` Chris Mason
2011-04-27 16:50 ` James Bottomley
2011-04-27 16:54 ` Chris Mason
2011-04-27 17:21 ` James Bottomley
2011-04-27 17:34 ` Chris Mason
2011-04-27 17:50 ` James Bottomley
2011-04-27 18:25 ` Colin Ian King
2011-04-28 15:57 ` James Bottomley
2011-04-27 20:05 ` James Bottomley
2011-04-28 11:36 ` Colin Ian King
2011-04-28 12:29 ` Chris Mason
2011-04-28 13:42 ` Colin Ian King
2011-04-28 13:45 ` Chris Mason
2011-04-28 14:01 ` Colin Ian King
2011-04-28 14:04 ` Chris Mason
2011-04-28 15:23 ` Colin Ian King
2011-04-28 14:25 ` Jan Kara
2011-04-28 14:33 ` Jan Kara
2011-04-28 14:58 ` Colin Ian King
2011-04-28 22:40 ` Jan Kara
2011-04-28 22:44 ` James Bottomley
2011-05-03 18:55 ` Colin Ian King
2011-04-28 16:11 ` James Bottomley
2011-04-28 14:49 ` James Bottomley
2011-04-28 13:52 ` Jan Kara
2011-04-28 14:07 ` Mel Gorman
2011-04-28 14:25 ` James Bottomley
2011-04-28 15:08 ` Mel Gorman
2011-04-28 16:01 ` James Bottomley
2011-04-28 16:50 ` James Bottomley
2011-04-28 16:56 ` James Bottomley
2011-04-28 17:18 ` Mel Gorman
2011-04-28 18:30 ` James Bottomley
2011-04-28 19:21 ` Mel Gorman
2011-04-28 19:59 ` James Bottomley
2011-04-28 20:27 ` Mel Gorman
2011-04-29 15:02 ` James Bottomley
2011-04-28 21:12 ` James Bottomley
2011-04-28 22:43 ` James Bottomley
2011-05-03 9:13 ` Mel Gorman
2011-05-03 14:13 ` James Bottomley
2011-05-03 14:22 ` James Bottomley
2011-05-06 7:42 ` Mel Gorman
2011-05-06 8:07 ` Mel Gorman
2011-05-09 18:16 ` James Bottomley
2011-05-10 10:21 ` Mel Gorman
2011-05-10 10:33 ` Pekka Enberg
2011-05-10 14:01 ` James Bottomley
2011-05-10 14:35 ` Mel Gorman
2011-05-10 15:29 ` James Bottomley
2011-05-10 15:57 ` James Bottomley
2011-05-10 17:05 ` James Bottomley
2011-05-10 17:17 ` Mel Gorman
2011-05-10 17:29 ` James Bottomley
2011-05-10 21:08 ` Raghavendra D Prabhu
2011-05-11 9:16 ` Mel Gorman
2011-05-06 11:42 ` Mel Gorman
2011-05-06 15:44 ` Mel Gorman
2011-05-06 19:14 ` James Bottomley [this message]
2011-05-06 19:37 ` Mel Gorman
2011-05-10 5:37 ` Colin Ian King
2011-05-06 15:58 ` James Bottomley
2011-05-03 9:54 ` Colin Ian King
2011-04-28 17:10 ` Colin Ian King
2011-04-28 0:37 ` Dave Chinner
2011-04-29 10:23 ` Sedat Dilek
2011-04-29 15:37 ` James Bottomley
2011-04-29 16:31 ` James Bottomley
2011-04-29 18:02 ` James Bottomley
2011-05-02 20:04 ` James Bottomley
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