[LU-11617] lockdep exposed a possible deadlock in chlg_open() Created: 04/Nov/18  Updated: 04/Oct/19  Resolved: 09/Aug/19

Status: Resolved
Project: Lustre
Component/s: None
Affects Version/s: Lustre 2.11.0, Lustre 2.12.0, Lustre 2.10.5
Fix Version/s: Lustre 2.13.0, Lustre 2.12.3

Type: Bug Priority: Minor
Reporter: James A Simmons Assignee: James A Simmons
Resolution: Fixed Votes: 0
Labels: None

Severity: 3
Rank (Obsolete): 9223372036854775807

 Description   

While testing the changelog char device landing in the linux client Neil saw lockdep report a potential deadlock between chlg_open() and mdc_changelog_cdev_init().

 Comments   
Comment by Gerrit Updater [ 04/Nov/18 ]

James Simmons (uja.ornl@yahoo.com) uploaded a new patch: https://review.whamcloud.com/33572
Subject: LU-11617 mdc: fix possible deadlock in chlg_open()
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 0957d95edb454ecffa19dfa2c508a923919ccb87

Comment by Gerrit Updater [ 09/Aug/19 ]

Oleg Drokin (green@whamcloud.com) merged in patch https://review.whamcloud.com/33572/
Subject: LU-11617 mdc: fix possible deadlock in chlg_open()
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 206b21741b07a10269bbcfdac28743591b64ab2f

Comment by Peter Jones [ 09/Aug/19 ]

Landed for 2.13

Comment by Gerrit Updater [ 18/Sep/19 ]

James Simmons (jsimmons@infradead.org) uploaded a new patch: https://review.whamcloud.com/36230
Subject: LU-11617 mdc: fix possible deadlock in chlg_open()
Project: fs/lustre-release
Branch: b2_12
Current Patch Set: 1
Commit: cb920d76d35201a57e114d9fa063e4798f6da07f

Comment by Gerrit Updater [ 04/Oct/19 ]

Oleg Drokin (green@whamcloud.com) merged in patch https://review.whamcloud.com/36230/
Subject: LU-11617 mdc: fix possible deadlock in chlg_open()
Project: fs/lustre-release
Branch: b2_12
Current Patch Set:
Commit: 4272c18f2a0a54f919f4ee2ed89fe74ea08b09d9

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