[LU-11922] mkfs.lustre in 1.44.3.wc1 causes corruption if 'metadata_csum' option enabled

• Type: Bug
• Resolution: Fixed
• Priority: Major
• Fix Version/s: Lustre 2.13.0
• Affects Version/s: Lustre 2.12.0, Lustre 2.13.0
• Labels: LTS12 ldiskfs nasa
• Severity: 3
• Assignee: Dongyang Li
• Reporter: Shuichi Ihara

Description

# mkfs.lustre --mgs --fsname=lustre /dev/sda 
# mkfs.lustre --ost --servicenode=172.16.251.20@o2ib --mgsnode=172.16.251.20@o2ib --fsname=lustre --index=0 --reformat --mkfsoptions='-text4' /dev/sdc 

# mount -t lustre /dev/sda /tmp/mgs/
# mount -t lustre /dev/sdc /tmp/ost0/

Feb  5 06:08:59 ai200-7f94-vm00 kernel: LDISKFS-fs (sdc): file extents enabled, maximum tree depth=5
Feb  5 06:08:59 ai200-7f94-vm00 kernel: LDISKFS-fs (sdc): mounted filesystem with ordered data mode. Opts: errors=remount-ro
Feb  5 06:08:59 ai200-7f94-vm00 kernel: LDISKFS-fs (sdc): file extents enabled, maximum tree depth=5
Feb  5 06:08:59 ai200-7f94-vm00 kernel: LDISKFS-fs (sdc): mounted filesystem with ordered data mode. Opts: ,errors=remount-ro,no_mbcache,nodelalloc
Feb  5 06:08:59 ai200-7f94-vm00 kernel: LDISKFS-fs error (device sdc): htree_dirblock_to_tree:1278: inode #11272193: block 721437184:
         comm mount.lustre: bad entry in directory: rec_len is too small for name_len - offset=4084(4084), inode=0, rec_len=12, name_len=0
Feb  5 06:08:59 ai200-7f94-vm00 kernel: Aborting journal on device sdc-8.
Feb  5 06:08:59 ai200-7f94-vm00 kernel: LDISKFS-fs (sdc): Remounting filesystem read-only
Feb  5 06:09:04 ai200-7f94-vm00 kernel: LDISKFS-fs warning (device sdc): kmmpd:187: kmmpd being stopped since filesystem has been remounted as readonly.

Without '-t ext4', it was no problem.
Also, 1.42.13.wc6 didn't cause problem even with '-t ext4'. it seems lustre version doesn't matter. hit problem with 2.10, 2.12 and master.

Issue Links

• is related to: LU-12827 sanity: test 900 read-only filesystem during cleanup: ldiskfs_xattr_block_get() bad block
• is related to: LU-13650 ldiskfs: enable metadata_csum on MDT/OST
• is related to: LU-12196 mkfs.lustre should handle large MDTs properly