From: Jeremy Sanders Subject: Re: fsck.ext4: Group descriptors look bad... trying backup blocks... Date: Fri, 24 Apr 2009 09:27:39 +0100 Message-ID: References: <49E8B5AD.6030907@redhat.com> <20090420113534.GR19186@mit.edu> Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7Bit To: linux-ext4@vger.kernel.org Return-path: Received: from main.gmane.org ([80.91.229.2]:56893 "EHLO ciao.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752502AbZDXJNQ (ORCPT ); Fri, 24 Apr 2009 05:13:16 -0400 Received: from list by ciao.gmane.org with local (Exim 4.43) id 1LxHT5-0001VK-Ej for linux-ext4@vger.kernel.org; Fri, 24 Apr 2009 09:13:11 +0000 Received: from xpc17.ast.cam.ac.uk ([131.111.69.96]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 24 Apr 2009 09:13:11 +0000 Received: from jss by xpc17.ast.cam.ac.uk with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 24 Apr 2009 09:13:11 +0000 Sender: linux-ext4-owner@vger.kernel.org List-ID: Theodore Tso wrote: > Do you have to reboot to see this, or is it enough to unmount the > filesystem? How big is the ext4 filesystem, and how big was the > amount of data that you rsync'ed? One thing that would be worth > trying if you can easily reproduce is whether it happens on a single > device disk, or whether it only shows up when you use a /dev/mdX > device. I've been able to reproduce it on a single device disk (It was partitioned to have the same number of blocks as the md device). Jeremy -- Jeremy Sanders http://www-xray.ast.cam.ac.uk/~jss/ X-Ray Group, Institute of Astronomy, University of Cambridge, UK. Public Key Server PGP Key ID: E1AAE053