From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751662AbWIGLLH (ORCPT ); Thu, 7 Sep 2006 07:11:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751666AbWIGLLH (ORCPT ); Thu, 7 Sep 2006 07:11:07 -0400 Received: from mail.dsa-ac.de ([62.112.80.99]:38919 "EHLO mail.dsa-ac.de") by vger.kernel.org with ESMTP id S1751662AbWIGLLE (ORCPT ); Thu, 7 Sep 2006 07:11:04 -0400 Date: Thu, 7 Sep 2006 13:10:59 +0200 (CEST) From: Guennadi Liakhovetski To: sct@redhat.com, akpm@osdl.org, adilger@clusterfs.com Cc: linux-kernel@vger.kernel.org Subject: [2.6.18-rc6] ext3 memory leak Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi all, this looks like a serious problem to be fixed before 2.6.18 final and backported to 2.6.17.*. Or a case of me misunderstanding something, in which case, please, let me know. I've reported before in thread "[2.6.17.4] slabinfo.buffer_head increases" a memory leak in ext3. Today I verified it is still present in 2.6.18-rc6. A short description: as long as write accesses are made on an ext3 filesystem /proc/slabinfo buffer_head increases unboundedly. This behaviour is not observed with another journalling filesystems (e.g., reiserfs), or if ext3 is mounted as ext2. As it seems serious enough to me I'm sending it to ext3 maintainers. Thanks Guennadi --------------------------------- Guennadi Liakhovetski, Ph.D. DSA Daten- und Systemtechnik GmbH Pascalstr. 28 D-52076 Aachen Germany