From: =?UTF-8?B?VG9yYWxmIEbDtnJzdGVy?= Subject: Re: EXT4-fs error w/ external USB drive Date: Mon, 22 Oct 2012 20:36:47 +0200 Message-ID: <5085923F.9050801@gmx.de> References: <507C4BDA.20205@gmx.de> <20121019210723.GA4721@thunk.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE To: Theodore Ts'o , linux-ext4@vger.kernel.org, Linux Kernel Return-path: Received: from mailout-de.gmx.net ([213.165.64.22]:43575 "HELO mailout-de.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1755771Ab2JVSjk (ORCPT ); Mon, 22 Oct 2012 14:39:40 -0400 In-Reply-To: <20121019210723.GA4721@thunk.org> Sender: linux-ext4-owner@vger.kernel.org List-ID: On 10/19/2012 11:07 PM, Theodore Ts'o wrote: > On Mon, Oct 15, 2012 at 07:46:02PM +0200, Toralf F=C3=B6rster wrote: >> Even with current stable kernel 3.6.2 I sometimes get those syslog m= essages : >> >> >> 2012-10-15T19:37:58.401+02:00 n22 kernel: EXT4-fs error (device sdb3= ): ext4_mb_generate_buddy:741: group 436, 22902 clusters in bitmap, 229= 01 in gd >=20 > Have you run e2fsck to clean up the file system corruption? If you > have, do you continually get these errors afterwards? Well, I got it yesterday too : n22 ~ # zgrep ext4_mb_generate_buddy /var/log/messages-201210* = = =20 /var/log/messages-20121021.gz:2012-10-15T19:05:39.189+02:00 n22 kernel:= EXT4-fs error (device sdb3): ext4_mb_generate_buddy:741: group 774, 27= 157 clusters in bitmap, 27052 in gd =20 /var/log/messages-20121021.gz:2012-10-15T19:37:58.401+02:00 n22 kernel:= EXT4-fs error (device sdb3): ext4_mb_generate_buddy:741: group 436, 22= 902 clusters in bitmap, 22901 in gd =20 /var/log/messages-20121021.gz:2012-10-15T19:56:05.301+02:00 n22 kernel:= EXT4-fs error (device sdb3): ext4_mb_generate_buddy:741: group 1233, 1= 1981 clusters in bitmap, 11974 in gd =20 /var/log/messages-20121021.gz:2012-10-15T19:56:18.601+02:00 n22 kernel:= EXT4-fs error (device sdb3): ext4_mb_generate_buddy:741: group 484, 28= 817 clusters in bitmap, 28101 in gd =20 I rebooted the system and forced a run of fsck after these lines too. I'll check periodically whether it happens again. =20 > You say this is an external USB disk; is there any possibility of the > disk getting unmounted uncleanly due to the cable getting pulled out > while the disk is still mounted, and then the disk getting remounted > w/o having e2fsck run on the disk? =46or the first occurrence probably yes (better : I dunno), but yesterd= ay definitely not. --=20 MfG/Sincerely Toralf F=C3=B6rster pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html