From: "Aneesh Kumar K.V" Subject: Re: mballoc errors Date: Thu, 27 Mar 2008 09:18:05 +0530 Message-ID: <20080327034805.GA7137@skywalker> References: <47EAC302.5040109@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: ext4 development To: Eric Sandeen Return-path: Received: from e28smtp03.in.ibm.com ([59.145.155.3]:38394 "EHLO e28smtp03.in.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753730AbYC0DsL (ORCPT ); Wed, 26 Mar 2008 23:48:11 -0400 Received: from d28relay02.in.ibm.com (d28relay02.in.ibm.com [9.184.220.59]) by e28smtp03.in.ibm.com (8.13.1/8.13.1) with ESMTP id m2R3m7Tf029219 for ; Thu, 27 Mar 2008 09:18:07 +0530 Received: from d28av01.in.ibm.com (d28av01.in.ibm.com [9.184.220.63]) by d28relay02.in.ibm.com (8.13.8/8.13.8/NCO v8.7) with ESMTP id m2R3m6R61229040 for ; Thu, 27 Mar 2008 09:18:06 +0530 Received: from d28av01.in.ibm.com (loopback [127.0.0.1]) by d28av01.in.ibm.com (8.13.1/8.13.3) with ESMTP id m2R3mDfC006813 for ; Thu, 27 Mar 2008 03:48:13 GMT Content-Disposition: inline In-Reply-To: <47EAC302.5040109@redhat.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: On Wed, Mar 26, 2008 at 04:41:22PM -0500, Eric Sandeen wrote: > This report just came in on the fedora list... > > EXT4-fs error (device dm-0): ext4_mb_generate_buddy: EXT4-fs: group 717: > 23410 blocks in bitmap, 23411 in gd > > EXT4-fs error (device dm-0): ext4_mb_generate_buddy: EXT4-fs: group 721: > 19309 blocks in bitmap, 19333 in gd > > has anyone else seen this problem in testing? I guess it means > freespace accounting got out of sync...? > The bitmap or group desc is corrupt. The number of free blocks counted via bitmap and found via desc->bg_free_blocks_count are not same. We fall back to one calculated the bitmap. -aneesh