Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262420AbVDLNC2 (ORCPT ); Tue, 12 Apr 2005 09:02:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262418AbVDLNBK (ORCPT ); Tue, 12 Apr 2005 09:01:10 -0400 Received: from mx1.redhat.com ([66.187.233.31]:38636 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S262420AbVDLMvB (ORCPT ); Tue, 12 Apr 2005 08:51:01 -0400 Subject: Re: [Ext2-devel] Re: OOM problems on 2.6.12-rc1 with many fsx tests From: "Stephen C. Tweedie" To: Andrew Morton Cc: Mingming Cao , Andrea Arcangeli , mjbligh@us.ibm.com, linux-kernel , "ext2-devel@lists.sourceforge.net" , janetinc@us.ibm.com, Stephen Tweedie In-Reply-To: <20050405182325.5297ff87.akpm@osdl.org> References: <20050315204413.GF20253@csail.mit.edu> <20050316003134.GY7699@opteron.random> <20050316040435.39533675.akpm@osdl.org> <20050316183701.GB21597@opteron.random> <1111607584.5786.55.camel@localhost.localdomain> <20050403183544.7c31f85c.akpm@osdl.org> <1112633417.3703.8.camel@dyn318043bld.beaverton.ibm.com> <20050404130441.53ab480b.akpm@osdl.org> <1112720671.3522.6.camel@dyn9047017080.beaverton.ibm.com> <20050405182325.5297ff87.akpm@osdl.org> Content-Type: text/plain Content-Transfer-Encoding: 7bit Message-Id: <1113310228.2404.48.camel@sisko.sctweedie.blueyonder.co.uk> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.5 (1.4.5-9) Date: Tue, 12 Apr 2005 13:50:28 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 958 Lines: 27 Hi, On Wed, 2005-04-06 at 02:23, Andrew Morton wrote: > Nobody has noticed the now-fixed leak since 2.6.6 and this one appears to > be 100x slower. Which is fortunate because this one is going to take a > long time to fix. I'll poke at it some more. OK, I'm now at the stage where I can kick off that fsx test on a kernel without your leak fix, kill it, umount and get Whoops: found 43 unfreeable buffers still on the superblock debug list for sb 00000100296b2d48. Tracing one... buffer trace for buffer at 0x000001003edaa9c8 (I am CPU 0) ... with a trace pointing to journal_unmap_buffer(). I'll try with the fix in place to see if there are any other cases showing up with the same problem. --Stephen - 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/