[LU-8514] tgt_main.c:121:tgt_cancel_slc_locks()) ASSERTION( lock->l_client_cookie != 0 ) failed

• Type: Bug
• Resolution: Fixed
• Priority: Critical
• Fix Version/s: Lustre 2.9.0
• Labels: llnl
• Severity: 3
• Assignee: Lai Siyao
• Reporter: Christopher Morrone (Inactive)

Description

Running Lustre version 2.8.0_0.0.llnlpreview.33 (see repo lustre-release-fe-llnl), we hit the following assertion on one of our MDS nodes (out of 16) in our 2.8 DNE testbed:

2016-08-18 05:45:32 [47956.538091] LustreError: 17552:0:(llog_cat.c:385:llog_cat_current_log()) lquake-MDT0004-osd: next log does not exist!
2016-08-18 05:45:32 [47956.550273] LustreError: 17552:0:(update_trans.c:1006:top_trans_stop()) lquake-MDT0004-osd: write updates failed: rc = -14
2016-08-18 05:45:32 [47956.592024] LustreError: 15805:0:(tgt_main.c:121:tgt_cancel_slc_locks()) ASSERTION( lock->l_client_cookie != 0 ) failed:
2016-08-18 05:45:32 [47956.604585] LustreError: 15805:0:(tgt_main.c:121:tgt_cancel_slc_locks()) LBUG
2016-08-18 05:45:32 [47956.612773] Pid: 15805, comm: tx_commit_cb

Note that the "next log does not exist!" message was introduced by the patch from LU-7800, Change-Id: I2343023c1f3109c077c98d78d3669377d95ed42f, Patch-Set: 6.