[LU-17354] ASSERTION( d->opd_obd->u.cli.cl_seq->lcs_exp != ((void *)0) )

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0
• Severity: 3
• Assignee: Alex Zhuravlev
• Reporter: Alex Zhuravlev

Description

if getting new sequence fail for a reason, then OSP can hit an assertion on reconnect:

[   40.651226] LustreError: 8347:0:(osp_precreate.c:1286:osp_precreate_thread()) ASSERTION( d->opd_obd->u.cli.cl_seq->lcs_exp != ((void *)0) ) failed: 
[   40.651422] LustreError: 8347:0:(osp_precreate.c:1286:osp_precreate_thread()) LBUG
[   40.651528] Pid: 8347, comm: osp-pre-10-1 4.18.0 #3 SMP Tue Sep 26 15:15:16 UTC 2023
[   40.651633] Call Trace TBD:
[   40.651667] [<0>] libcfs_call_trace+0x5e/0x80 [libcfs]
[   40.651730] [<0>] lbug_with_loc+0x3a/0x60 [libcfs]
[   40.651791] [<0>] osp_precreate_thread+0x16c5/0x2340 [osp]
[   40.651895] [<0>] kthread+0x14a/0x170
[   40.651937] [<0>] ret_from_fork+0x24/0x30
[   40.651996] Kernel panic - not syncing: LBUG