[LU-12199] md's are not detached from uncommitted messages that have health check performed on them

• Type: Bug
• Resolution: Fixed
• Priority: Major
• Fix Version/s: Lustre 2.13.0, Lustre 2.12.3
• Affects Version/s: Lustre 2.12.0, Lustre 2.13.0
• Severity: 3
• Assignee: Chris Horn
• Reporter: Chris Horn

Description

It's possible for lnet_is_health_check() to return "true" when the
message has not hit the network. In this situation the message is freed
without detaching the MD. As a result, requests do not receive their
unlink events and these requests are stuck forever.

This issue was discovered while testing the MR routing feature under LNet router failure conditions.

Bug was introduced by the LNet health feature commit 70616605dd44be37068f4e1a4745a2f8b90eb1f5 https://review.whamcloud.com/32764

Comments

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/36039/
Subject: LU-12199 lnet: verify msg is commited for send/recv
Project: fs/lustre-release
Branch: b2_12
Current Patch Set:
Commit: 73c8ae59cb2bd8352301d8f09ef1309adb5c8202

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/36038/
Subject: LU-12199 lnet: Ensure md is detached when msg is not committed
Project: fs/lustre-release
Branch: b2_12
Current Patch Set:
Commit: d5a05a56fa29259b28dcc766af391ee0f3a357fd

[Gerrit Updater]

Minh Diep ([e-mail]) uploaded a new patch: https://review.whamcloud.com/36039
Subject: LU-12199 lnet: verify msg is commited for send/recv
Project: fs/lustre-release
Branch: b2_12
Current Patch Set: 1
Commit: ae2a031220d21bf3a511457cbe091134278c0cec

[Gerrit Updater]

Minh Diep ([e-mail]) uploaded a new patch: https://review.whamcloud.com/36038
Subject: LU-12199 lnet: Ensure md is detached when msg is not committed
Project: fs/lustre-release
Branch: b2_12
Current Patch Set: 1
Commit: 7699683cd5779316ff7d9429df1a7428c978b2b0

[Gerrit Updater]

Amir Shehata ([e-mail]) merged in patch https://review.whamcloud.com/34797/
Subject: LU-12199 lnet: verify msg is commited for send/recv
Project: fs/lustre-release
Branch: multi-rail
Current Patch Set:
Commit: fc6b321036f34c00d5b32b49c817dc0034fbad9e

[Gerrit Updater]

Amir Shehata ([e-mail]) merged in patch https://review.whamcloud.com/34885/
Subject: LU-12199 lnet: Ensure md is detached when msg is not committed
Project: fs/lustre-release
Branch: multi-rail
Current Patch Set:
Commit: b65f3a1767ae82c7f629320187b33eb8670da537

[Gerrit Updater]

Amir Shehata ([e-mail]) uploaded a new patch: https://review.whamcloud.com/34971
Subject: LU-12199 lnet: verify msg is commited for send/recv
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 6b9f43a82e6fe8ce90cb925c9e46023cc76a196c

[Gerrit Updater]

Amir Shehata ([e-mail]) uploaded a new patch: https://review.whamcloud.com/34885
Subject: LU-12199 lnet: Ensure md is detached when msg is not committed
Project: fs/lustre-release
Branch: multi-rail
Current Patch Set: 1
Commit: cac7eba2fe4f0852dbf416388ce6831027c1f555

[Gerrit Updater]

Amir Shehata ([e-mail]) uploaded a new patch: https://review.whamcloud.com/34797
Subject: LU-12199 lnet: verify msg is commited for send/recv
Project: fs/lustre-release
Branch: multi-rail
Current Patch Set: 1
Commit: a4cc4392e989fe33299324a9ebb3d7fdfa45baad

[Gerrit Updater]

Chris Horn ([e-mail]) uploaded a new patch: https://review.whamcloud.com/34709
Subject: LU-12199 lnet: Ensure md is detached when msg is not committed
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: cffdb4bb4afc698bb4df6cef9d74d85cd0e2b876