[LU-15542] lfsck have panic with ea inode linked into lost+found.

• Type: Bug
• Resolution: Fixed
• Priority: Critical
• Fix Version/s: Lustre 2.16.0
• Severity: 3
• Assignee: Alexey Lyashkov
• Reporter: Alexey Lyashkov

Description

EA inode may linked to the lost+found with e2fsck, it caused situation when OI scrub will exclude this inode, but lfsck phase2 want to process this dir entry/inode and link to the namespace. It caused an assertion.

[244527.410105] LustreError: 239272:0:(lfsck_namespace.c:5920:lfsck_namespace_scan_local_lpf_one()) ASSERTION( dt_object_exists(child) ) failed:
[244527.411480] LustreError: 239272:0:(lfsck_namespace.c:5920:lfsck_namespace_scan_local_lpf_one()) LBUG
[244527.412673] Pid: 239272, comm: lfsck_namespace 4.18.0-305.25.1.el8_4.x86_64+debug #1 SMP Wed Nov 3 10:14:57 UTC 2021
[244527.413911] Call Trace TBD:
[244527.414272] [<0>] libcfs_call_trace+0x99/0x140 [libcfs]
[244527.414841] [<0>] lbug_with_loc+0xb8/0x180 [libcfs]
[244527.415394] [<0>] lfsck_namespace_scan_local_lpf_one+0xb50/0x1360 [lfsck]
[244527.416151] [<0>] lfsck_namespace_scan_local_lpf+0xd22/0x1a80 [lfsck]
[244527.416845] [<0>] lfsck_namespace_assistant_handler_p2+0x1198/0x1c20 [lfsck]
[244527.417605] [<0>] lfsck_assistant_engine+0x3517/0x51b0 [lfsck]
[244527.418249] [<0>] kthread+0x344/0x410
[244527.418656] [<0>] ret_from_fork+0x3a/0x50
[244527.419092] Kernel panic - not syncing: LBUG

Issue Links

• is related to: LU-17380 b2_15 sanity test suite running gets stuck at test 64e
• is related to: LU-18195 conf-sanity test_61b: mount.lustre: unexpected EA_INODE flag