Hi , We are noticing an issue with logical volume file system is getting corrupted after restarting the machine for multiple times. This issue we have started noticing after upgrading the kernel to 4.4.121. while running tune2fs -c 1 /dev/VG_NEW/state to set the mmax_mounts_count we are noticing the error. tune2fs -c 1 /dev/VG_NEW/state tune2fs 1.44.0 (7-Mar-2018) tune2fs: The ext2 superblock is corrupt while trying to open /dev/VG_NEW/state Couldn't find valid filesystem superblock. lvs command output is below (there are other logical volumes and volume groups also along with state volume, I have not pasted them to minimize this post). Important thing to note here is always state volume only is getting corrupted and no file system corruption seen on other logical volumes. lvs LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert state VG_NEW -wi-a----- 1000.00m blkid command output is below blkid /dev/mapper/VG_NEW--state: LABEL="state" UUID="57f82106-3fd2-4d8c-9cbe-676dc58d5405" SEC_TYPE="ext2" TYPE="ext3" /dev/mapper/VG_NEW--backup: LABEL="backup" UUID="2771bdac-f005-4bde-88a1-5ace80faa89f" SEC_TYPE="ext2" TYPE="ext3" /dev/mapper/VG_NEW--ErrorInformation: LABEL="ErrorInformati" UUID="e5f18c5a-aec8-498a-8feb-b81686bf2ff9" SEC_TYPE="ext2" TYPE="ext3" please find the output of mount command. mount -o noatime -t ext4 /dev/VG_NEW/state /mnt/state [ 271.786492] EXT4-fs (dm-0): ext4_check_descriptors: Block bitmap for group 0 not in group (block 64)! [ 271.795731] EXT4-fs (dm-0): group descriptors corrupted! mount: mounting /dev/VG_NEW/state on /mnt/state failed: Structure needs cleaning -bash-4.4# when i tried to recover , recovery was successful but after multiple reboots we have seen this issue again. please find the output of e2fsck e2fsck -f -y /dev/VG_NEW/state e2fsck 1.44.0 (7-Mar-2018) ext2fs_open2: The ext2 superblock is corrupt e2fsck: Superblock invalid, trying backup blocks... 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 #0 (28095, counted=24283). Fix? yes Free blocks count wrong for group #2 (32266, counted=32128). Fix? yes Free blocks count wrong for group #6 (32266, counted=32029). Fix? yes Free blocks count wrong (243372, counted=243370). Fix? yes Free inodes count wrong for group #0 (7989, counted=7988). Fix? yes Free inodes count wrong for group #2 (8000, counted=7829). Fix? yes Directories count wrong for group #2 (0, counted=37). Fix? yes Free inodes count wrong for group #6 (8000, counted=7881). Fix? yes Directories count wrong for group #6 (0, counted=52). Fix? yes Free inodes count wrong (63700, counted=63698). Fix? yes state: ***** FILE SYSTEM WAS MODIFIED ***** state: 302/64000 files (2.6% non-contiguous), 12630/256000 blocks -bash-4.4# Could you please suggest what could be the cause for this issue. Please provide pointers on how to proceed. Thanks, Rajesh Dasari.
