[LU-13231] sanity test_901: FAIL: mgs lock leak (34 != 37) Created: 10/Feb/20  Updated: 08/Dec/23

Status: Open
Project: Lustre
Component/s: None
Affects Version/s: Lustre 2.14.0
Fix Version/s: None

Type: Bug Priority: Minor
Reporter: Maloo Assignee: WC Triage
Resolution: Unresolved Votes: 0
Labels: None

Issue Links:
Related
Severity: 3
Rank (Obsolete): 9223372036854775807

 Description   

This issue was created by maloo for jianyu <yujian@whamcloud.com>

This issue relates to the following test suite run: https://testing.whamcloud.com/test_sets/86cd8382-4a79-11ea-b58e-52540065bddc

test_901 failed with the following error:

== sanity test 901: don't leak a mgc lock on client umount =========================================== 05:31:29 (1581168689)
CMD: trevis-17vm12 /usr/sbin/lctl get_param -n ldlm.namespaces.MGS*.lock_count
10.9.4.209@tcp:/lustre /mnt/lustre lustre rw,flock,user_xattr,lazystatfs 0 0
CMD: trevis-16vm11 grep -c /mnt/lustre' ' /proc/mounts
Stopping client trevis-16vm11 /mnt/lustre (opts:)
CMD: trevis-16vm11 lsof -t /mnt/lustre
CMD: trevis-16vm11 umount  /mnt/lustre 2>&1
Starting client: trevis-16vm11:  -o user_xattr,flock trevis-17vm12@tcp:/lustre /mnt/lustre
CMD: trevis-16vm11 mkdir -p /mnt/lustre
CMD: trevis-16vm11 mount -t lustre -o user_xattr,flock trevis-17vm12@tcp:/lustre /mnt/lustre
CMD: trevis-17vm12 /usr/sbin/lctl get_param -n ldlm.namespaces.MGS*.lock_count
 sanity test_901: @@@@@@ FAIL: mgs lock leak (34 != 37) 

<<Please provide additional information about the failure here>>

VVVVVVV DO NOT REMOVE LINES BELOW, Added by Maloo for auto-association VVVVVVV
sanity test_901 - mgs lock leak (34 != 37)



 Comments   
Comment by Jian Yu [ 13/Apr/20 ]

The failure occurred constantly on master branch:
https://testing.whamcloud.com/test_sets/28d34746-1e90-43af-a46c-eaca630d6bf5
https://testing.whamcloud.com/test_sets/db65cc6c-55fe-43b6-85dc-4c8eb8c3f9ea
https://testing.whamcloud.com/test_sets/4d34cabd-5697-4100-b2b2-63f4d0d3b6ec

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