[LU-16982] Crash lustre after umount -d -f /mnt/lustre-mds4 Created: 25/Jul/23  Updated: 07/Aug/23  Resolved: 07/Aug/23

Status: Resolved
Project: Lustre
Component/s: None
Affects Version/s: Lustre 2.16.0
Fix Version/s: Lustre 2.16.0

Type: Bug Priority: Blocker
Reporter: Vitaliy Kuznetsov Assignee: Vitaliy Kuznetsov
Resolution: Fixed Votes: 0
Labels: None

Issue Links:
Duplicate
is duplicated by LU-17017 sanity test_133f: server crashes in s... Resolved
Related
is related to LU-16973 Busy device after successful umount Resolved
is related to LU-16298 periodically write ldiskfs superblock Resolved
Severity: 3
Rank (Obsolete): 9223372036854775807

 Description   

Crash seen during unmount while testing patch https://review.whamcloud.com/51731 "LU-16973 osd: adds SB_KERNMOUNT flag".

[15020.698384] Lustre: DEBUG MARKER: umount -d -f /mnt/lustre-mds4
[15021.262942] kernel BUG at fs/jbd2/transaction.c:378!
[15021.264875] CPU: 0 PID: 310834 Comm: kworker/0:2 4.18.0-477.15.1.el8_lustre.x86_64
[15021.267209] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
[15021.268314] Workqueue: events flush_stashed_stats_work [ldiskfs]
[15021.269610] RIP: 0010:start_this_handle+0x22c/0x520 [jbd2]
[15021.286052] Call Trace:
[15021.288463] jbd2__journal_start+0xee/0x1f0 [jbd2]
[15021.289403] jbd2_journal_start+0x19/0x20 [jbd2]
[15021.290310] flush_stashed_stats_work+0x36/0x90 [ldiskfs]
[15021.291398] process_one_work+0x1a7/0x360
[15021.293028] worker_thread+0x30/0x390
[15021.294554] kthread+0x134/0x150

 



 Comments   
Comment by Gerrit Updater [ 25/Jul/23 ]

"Vitaliy Kuznetsov <vkuznetsov@ddn.com>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/51760
Subject: LU-16982 ldiskfs: Fix crash after "umount -d -f /mnt/..."
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 6d1756a7902252f210b6ece8940f95e5774577c6

Comment by Chris Horn [ 28/Jul/23 ]

+1 on master https://testing.whamcloud.com/test_sets/bc076535-faaa-4a6f-8314-9f09d4b62e8d

Comment by Chris Horn [ 28/Jul/23 ]

One more on master https://testing.whamcloud.com/test_sessions/276cc535-ab0b-4b87-bef0-104055e36f01

Comment by Etienne Aujames [ 03/Aug/23 ]

+1 on master: https://testing.whamcloud.com/test_sets/760131a8-263b-4c4d-9dd2-d7899d5af8a9

Comment by Gerrit Updater [ 07/Aug/23 ]

"Oleg Drokin <green@whamcloud.com>" merged in patch https://review.whamcloud.com/c/fs/lustre-release/+/51760/
Subject: LU-16982 ldiskfs: Fix crash after "umount -d -f /mnt/..."
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 041340404e110ec70a37538f56d5df3ee72e12c8

Comment by Peter Jones [ 07/Aug/23 ]

Landed for 2.16

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