https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 https://jira.whamcloud.com/browse/LU-7400 Lustre <p>as sub_thandle_register_stop_cb() is called in top_trans_start(), then missing top_trans_start() (which is valid case) cause top_trans_stop() to wait indefinitely for a missing stop callbacks.</p> LU-7400

top_trans_create() followed by top_trans_stop() get stuck

Bug Blocker Resolved Fixed Alex Zhuravlev Alex Zhuravlev Fri, 6 Nov 2015 07:20:41 +0000 Wed, 2 Dec 2015 15:48:17 +0000 Wed, 2 Dec 2015 15:48:17 +0000 Lustre 2.8.0 Lustre 2.8.0 0 5 <p>Alex Zhuravlev (alexey.zhuravlev@intel.com) uploaded a new patch: <a href="http://review.whamcloud.com/17059" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/17059</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-7400" title="top_trans_create() followed by top_trans_stop() get stuck" class="issue-link" data-issue-key="LU-7400"><del>LU-7400</del></a> lod: register commit callbacks at create<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 58a978451fd7504ecc9ab3bbf841a3499401f0b2</p> <p>Alex, under what kind of workload is this bug hit, and how easily does that happen? Is this a patch that needs to be landed for 2.8.0?</p> <p>for example, if a target fails during recovery and some of preparation RPC (e.g. fetching EA) returns an error, then the original migration process got stuck. even if the failed target is back, it's still stuck. I think it makes sense to consider landing.</p> <p>I think we also have this issue for commit callback, which I found in failover soak-test. I will update the patch to resolve them together. IMHO, this should get into 2.8, since it will cause endless recovery.</p> <p>Since we saw this in soak-test DNE, and we have to pass it before release, so let's make it blocker for now.</p> <p>Oleg Drokin (oleg.drokin@intel.com) merged in patch <a href="http://review.whamcloud.com/17059/" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/17059/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-7400" title="top_trans_create() followed by top_trans_stop() get stuck" class="issue-link" data-issue-key="LU-7400"><del>LU-7400</del></a> lod: register stop callbacks at create<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 082eabdeaa0c2a0f536accf7028e5ab5061c2c46</p> <p>Landed for 2.8</p> Related Development Rank 1|hzxsfz: Rank (Obsolete) 9223372036854775807 Severity