Package: linux-image-4.9.0-7-amd64 Version: 4.9.110-1 Mounting ext4 filesystem with meta_bg set fails with "structure needs cleaning". Mounting the same filesystem with the kernel from linux-image-4.9.0-6-amd64 works as expected.
root@mini:/home/peters# mkfs.ext4 -O meta_bg,^resize_inode /dev/sdb1 mke2fs 1.43.4 (31-Jan-2017) Creating filesystem with 10485504 4k blocks and 2621440 inodes Filesystem UUID: 5400c937-1062-4cc2-8c4c-94dcf8ec2f57 Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000, 7962624 Allocating group tables: done Writing inode tables: done Creating journal (65536 blocks): done Writing superblocks and filesystem accounting information: done root@mini:/home/peters# mount -v /dev/sdb1 /mnt mount: mount /dev/sdb1 on /mnt failed: Structure needs cleaning root@mini:/home/peters# tail -3 /var/log/syslog Jul 15 11:42:44 mini kernel: [ 28.425654] sdb: sdb1 Jul 15 11:48:26 mini kernel: [ 370.639747] EXT4-fs (sdb1): ext4_check_descriptors: Block bitmap for group 0 overlaps block group descriptors Jul 15 11:48:26 mini kernel: [ 370.640447] EXT4-fs (sdb1): group descriptors corrupted! root@mini:/home/peters# uname -a Linux mini 4.9.0-7-amd64 #1 SMP Debian 4.9.110-1 (2018-07-05) x86_64 GNU/Linux root@mini:/home/peters#