[LU-14547] santyn/109 fails on a local setup

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.15.0
• Affects Version/s: Upstream
• Severity: 3
• Assignee: Etienne Aujames
• Reporter: Alex Zhuravlev

Description

== sanityn test 109: Race with several mount instances on 1 node ===================================== 09:08:40 (1616472520)
192.168.122.38@tcp:/lustre /mnt/lustre lustre rw,flock,user_xattr,lazystatfs,noencrypt 0 0
Stopping client tmp.ezAnrHSAb2 /mnt/lustre (opts:)
192.168.122.38@tcp:/lustre /mnt/lustre2 lustre rw,flock,user_xattr,lazystatfs,noencrypt 0 0
Stopping client tmp.ezAnrHSAb2 /mnt/lustre2 (opts:)
Starting race between client mount instances (50 iterations):
Iteration 1
Starting client: tmp.ezAnrHSAb2:  -o user_xattr,flock tmp.ezAnrHSAb2@tcp:/lustre /mnt/lustre
Starting client: tmp.ezAnrHSAb2:  -o user_xattr,flock tmp.ezAnrHSAb2@tcp:/lustre /mnt/lustre2
192.168.122.38@tcp:/lustre /mnt/lustre lustre rw,flock,user_xattr,lazystatfs,noencrypt 0 0
192.168.122.38@tcp:/lustre /mnt/lustre2 lustre rw,flock,user_xattr,lazystatfs,noencrypt 0 0
Stopping client tmp.ezAnrHSAb2 /mnt/lustre (opts:)
Stopping client tmp.ezAnrHSAb2 /mnt/lustre2 (opts:)
rmmod: ERROR: Module mdd is in use
 sanityn test_109: @@@@@@ FAIL: Fail to remove lustre modules 
  Trace dump:
  = ./../tests/test-framework.sh:6276:error()
  = sanityn.sh:5596:test_109()
  = ./../tests/test-framework.sh:6579:run_one()
  = ./../tests/test-framework.sh:6626:run_one_logged()
  = ./../tests/test-framework.sh:6468:run_test()
  = sanityn.sh:5605:main()

Issue Links

• is related to: LU-14110 Race during several client mount instances (--> rmmod lustre hang)

Comments

[Peter Jones]

Landed for 2.15

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/43142/
Subject: LU-14547 test: skip sanityn 109 for local setup
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 622e4c6e04baa4f9d19cc33f4636679014fc1d2f

[Etienne Aujames]

Hello Alex,

Yes we need to unload obdclass to reproduce the LU-14110.

[Gerrit Updater]

Etienne AUJAMES ([e-mail]) uploaded a new patch: https://review.whamcloud.com/43142
Subject: LU-14547 test: skip sanityn 109 for local setup
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 84705ca8a51ff6de33db63deb54c749f23410f8f

[Alex Zhuravlev]

I guess the reason is that mdd (and all server modules) can't be unloaded given the clients share node with the servers (local setup).
something like:

local_mode && skip "need remote servers"

can help?