From: David Rees Subject: EXT4-fs error - ext4_mb_generate_buddy Date: Thu, 10 Sep 2009 11:56:42 -0700 Message-ID: <72dbd3150909101156qa2c4e3dnfef02d509f63330f@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 To: linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org Return-path: Received: from mail-vw0-f195.google.com ([209.85.212.195]:40387 "EHLO mail-vw0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753049AbZIJS47 (ORCPT ); Thu, 10 Sep 2009 14:56:59 -0400 Sender: linux-ext4-owner@vger.kernel.org List-ID: Running ext4 on Fedora 10, kernel 2.6.29.6-93.fc10.x86_64. Partition in question is an 8 disk software RAID10 with mostly SATA disks and one IDE disk. We've never seen any hardware or filesystem corruption issues on this machine in the past, though the RAID10 setup is new - was put into service the same time we migrated the partition from ext3 to ext4 (fresh filesystem created and data copied over). Earlier today, we saw this message in the logs: EXT4-fs error (device md0): ext4_mb_generate_buddy: EXT4-fs: group 586: 19635 blocks in bitmap, 19636 in gd It looks rather ominous and we will be scheduling a reboot to force a fsck as well as to upgrade to kernel-2.6.29.6-99.fc10.x86_64 (which doesn't appear to have any ext4 related changes in it). Looking in the archives, I'm not quite sure what to make of the message, but it does seem to indicate that we may have filesystem corruption. Any suggestions? Thanks -Dave