From mboxrd@z Thu Jan 1 00:00:00 1970 From: Zheng Liu Subject: Re: "EXT4-fs error: ext4_mb_generate_buddy" errors during rsync Date: Mon, 18 Mar 2013 17:58:51 +0800 Message-ID: <20130318095851.GA1751@gmail.com> References: <20130318081551.GA379@x4> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-ext4@vger.kernel.org To: Markus Trippelsdorf Return-path: Received: from mail-pb0-f50.google.com ([209.85.160.50]:53426 "EHLO mail-pb0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753176Ab3CRJn1 (ORCPT ); Mon, 18 Mar 2013 05:43:27 -0400 Received: by mail-pb0-f50.google.com with SMTP id up1so6229133pbc.9 for ; Mon, 18 Mar 2013 02:43:26 -0700 (PDT) Content-Disposition: inline In-Reply-To: <20130318081551.GA379@x4> Sender: linux-ext4-owner@vger.kernel.org List-ID: On Mon, Mar 18, 2013 at 09:15:51AM +0100, Markus Trippelsdorf wrote: > During the nightly rsync run that backups my root filesystem I got: > > Mar 18 01:52:00 x4 fcron[19997]: Job /usr/bin/rsnapshot daily started for user root (pid 19998) > Mar 18 01:56:41 x4 rsnapshot[20187]: /usr/bin/rsnapshot daily: completed successfully > Mar 18 01:56:43 x4 fcron[19997]: Job /usr/bin/rsnapshot daily completed (mailing output) > > Mar 18 01:52:21 x4 kernel: EXT4-fs error (device sda): ext4_mb_generate_buddy:749: group 6817, 7060 clusters in bitmap, 7064 in gd > Mar 18 01:52:21 x4 kernel: JBD2: Spotted dirty metadata buffer (dev = sda, blocknr = 0). There's a risk of filesystem corruption in case of system crash. > Mar 18 01:56:30 x4 kernel: EXT4-fs error (device sda): ext4_mb_generate_buddy:749: group 6833, 26653 clusters in bitmap, 26656 in gd > Mar 18 01:56:30 x4 kernel: EXT4-fs error (device sda): ext4_mb_generate_buddy:749: group 6881, 3985 clusters in bitmap, 3991 in gd > Mar 18 01:56:30 x4 kernel: EXT4-fs error (device sda): ext4_mb_generate_buddy:749: group 6897, 5979 clusters in bitmap, 6024 in gd > > e2fsck 1.42 (29-Nov-2011) > Pass 1: Checking inodes, blocks, and sizes > Pass 2: Checking directory structure > Pass 3: Checking directory connectivity > Pass 4: Checking reference counts > Pass 5: Checking group summary information > Free blocks count wrong for group #6817 (6779, counted=6775). > Fix? yes > Free blocks count wrong for group #6833 (26575, counted=26572). > Fix? yes > Free blocks count wrong for group #6881 (3916, counted=3910). > Fix? yes > Free blocks count wrong for group #6897 (5987, counted=5942). > Fix? yes > Free blocks count wrong (185850303, counted=185850245). > Fix? yes > /dev/sdb: ***** FILE SYSTEM WAS MODIFIED ***** > /dev/sdb: 1619858/91578368 files (0.6% non-contiguous), 180434401/366284646 blocks > > "smartctl -a /dev/sda" looks fine Hi Markus, Could you please provide more details? Such as kernel version, `tune2fs -l ${dev}`, etc.... I guess the kernel version is 3.9-rc2, right? :-) Thanks, - Zheng