[#LU-12695] A client panics if a request succeeded from Server but the following processing on the client failed.

[LU-12695] A client panics if a request succeeded from Server but the following processing on the client failed. Created: 26/Aug/19 Updated: 26/Aug/19
Status:	Open
Project:	Lustre
Component/s:	None
Affects Version/s:	Lustre 2.12.2
Fix Version/s:	None

Type:

Bug

Priority:

Major

Reporter:

Tatsushi Takamura

Assignee:

Tatsushi Takamura

Resolution:

Unresolved

Votes:

Labels:

None

Severity:

Rank (Obsolete):

9223372036854775807

Description

A client panics if a request succeeded but the following processing failed.
The flow is below.

mdc_enqueue_base
 ldlm_cli_enqueue 
　 ptlrpc_queue_wait      // succeeded, that is, req->rq_transno != 0
  ldlm_cli_enqueue_fini  // failed, that is, rc != 0
   ldlm_lock_change_resource // error ex. ENOMEM
 mdc_clear_replay_flag
  LBUG // <-

There are serveral ways that ldlm_cli_enqueue() may fail even if ldlm_cli_enqueue() succeeded. LBUG should be removed.

Comments

Comment by Gerrit Updater [ 26/Aug/19 ]

Tatsushi Takamura (takamr.tatsushi@jp.fujitsu.com) uploaded a new patch: https://review.whamcloud.com/35918
Subject: LU-12695 mdc: remove wrong LBUG
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: d805078ec6e86c19fc35412e33969d4e0efa99d2

Generated at Sat Feb 10 02:54:50 UTC 2024 using Jira 9.4.14#940014-sha1:734e6822bbf0d45eff9af51f82432957f73aa32c.

[LU-12695] A client panics if a request succeeded from Server but the following processing on the client failed. Created: 26/Aug/19 Updated: 26/Aug/19