From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263523AbTJQUhj (ORCPT ); Fri, 17 Oct 2003 16:37:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263524AbTJQUhj (ORCPT ); Fri, 17 Oct 2003 16:37:39 -0400 Received: from [80.250.191.80] ([80.250.191.80]:7864 "EHLO gw.home.net") by vger.kernel.org with ESMTP id S263523AbTJQUhi (ORCPT ); Fri, 17 Oct 2003 16:37:38 -0400 Date: Sat, 18 Oct 2003 00:41:52 +0400 From: Alex Tomas To: Ed Sweetman Cc: linux-kernel@vger.kernel.org Subject: Re: [PATCH] EXT3 extents against 2.6.0-test7 Message-Id: <20031018004152.6aa9e9c3.alex@clusterfs.com> In-Reply-To: <3F904D7F.50403@wmich.edu> References: <20031013222747.37f5ee7b.alex@clusterfs.com> <3F8B1BA1.4020800@wmich.edu> <20031014212359.42243025.alex@clusterfs.com> <3F9043E7.3070606@wmich.edu> <20031018001001.25e85002.alex@clusterfs.com> <3F904D7F.50403@wmich.edu> Organization: CFS X-Mailer: Sylpheed version 0.9.6claws (GTK+ 1.2.10; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 17 Oct 2003 16:13:51 -0400 Ed Sweetman wrote: > How am i supposed to know which directory in the fs this corruption > takes place in? I can tell you the size of the partitions that have > extents enabled, From that error message i dont even know which > partition it was. And judging by the dmesg last modified time, this > happened 2 days ago OK. the question wasn't clear. 1) could you _estimate_ max directory size or number of entries in single directory on your filesystems, please? had you large directories? 100, 300, 500 or more entries? 2) did you use 2.6.0-test7+extents or some another patches? 3) could you describe workload. knowing it I'd try to reproduce this > Isn't it possible though that this happened in one of the non-extents > enabled partitions though? Since they still have the ability to read > extents in files, they have to try and look them up every time for > everything dont they? Anyways, the two partitions above are the only > ones i actually enable extents on. > extents take place only if flag in inode->i_flags is set. that flag can be set only during inode creation on extents-enabled filesystem. with best wishes, Alex