On 10/19/2012 11:07 PM, Theodore Ts'o wrote: > On Mon, Oct 15, 2012 at 07:46:02PM +0200, Toralf Förster wrote: >> Even with current stable kernel 3.6.2 I sometimes get those syslog messages : >> >> >> 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, 22901 in gd > > 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* /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, 27157 clusters in bitmap, 27052 in gd /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, 22902 clusters in bitmap, 22901 in gd /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, 11981 clusters in bitmap, 11974 in gd /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, 28817 clusters in bitmap, 28101 in gd I rebooted the system and forced a run of fsck after these lines too. I'll check periodically whether it happens again. > 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? For the first occurrence probably yes (better : I dunno), but yesterday definitely not. -- MfG/Sincerely Toralf Förster pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html