Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757300Ab1EBT75 (ORCPT ); Mon, 2 May 2011 15:59:57 -0400 Received: from trent.utfs.org ([194.246.123.103]:41915 "EHLO trent.utfs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756999Ab1EBT7x (ORCPT ); Mon, 2 May 2011 15:59:53 -0400 Date: Mon, 2 May 2011 12:59:50 -0700 (PDT) From: Christian Kujau To: Dave Chinner cc: Markus Trippelsdorf , LKML , xfs@oss.sgi.com, minchan.kim@gmail.com Subject: Re: 2.6.39-rc4+: oom-killer busy killing tasks In-Reply-To: <20110502121958.GA2978@dastard> Message-ID: References: <20110427022655.GE12436@dastard> <20110427102824.GI12436@dastard> <20110428233751.GR12436@dastard> <20110429201701.GA13166@x4.trippels.de> <20110501080149.GD13542@dastard> <20110502121958.GA2978@dastard> User-Agent: Alpine 2.01 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-AV-Checked: ClamAV using ClamSMTP (127.0.0.1) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1081 Lines: 28 On Mon, 2 May 2011 at 22:19, Dave Chinner wrote: > Yes. Try 2 orders of magnitude as a start. i.e change it to 10000... I've run the -12 test with vfs_cache_pressure=200 and now the -13 test with vfs_cache_pressure=10000. The OOM killer still kicks in, but the machine seems to be more usable afterwards and does not get totally stuck: http://nerdbynature.de/bits/2.6.39-rc4/oom/ - messages-12.txt.gz & slabinfo-12.txt.bz2 * oom-debug.sh invoked oom-killer at 01:27:11 * sysrq-w works until 01:27:08, but got killed by oom - messages-13.txt.gz & slabinfo-13.txt.bz2 * find invoked oom-killer at 08:44:07 * sysrq-w works until 08:45:48 (listing jbd2/hda6-8), then my debug script got killed Thanks, Christian. -- BOFH excuse #224: Jan 9 16:41:27 huber su: 'su root' succeeded for .... on /dev/pts/1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/