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-12691 Lustre <p>Originally obd_max_recoverable_clients is not increased at the same moment.<br/> But because of <a href="https://jira.whamcloud.com/browse/LU-3540" title="recovery for cross-MDT operation" class="issue-link" data-issue-key="LU-3540"><del>LU-3540</del></a>, it will be increased by multiple processes.<br/> This causes LBUG.</p> <p>The type of obd_max_recoverable_clients should be atomic_t and be handled by atomic operations.</p> LU-12691

obd_max_recoverable_clients is not atomic

Bug Major Resolved Fixed Tatsushi Takamura Tatsushi Takamura Mon, 26 Aug 2019 00:10:35 +0000 Fri, 29 May 2020 22:13:13 +0000 Wed, 9 Oct 2019 22:42:48 +0000 Lustre 2.10.8 Lustre 2.13.0 Lustre 2.12.4 0 2 <p>Tatsushi Takamura (takamr.tatsushi@jp.fujitsu.com) uploaded a new patch: <a href="https://review.whamcloud.com/35914" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/35914</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12691" title="obd_max_recoverable_clients is not atomic" class="issue-link" data-issue-key="LU-12691"><del>LU-12691</del></a> ldlm: obd_max_recoverable_clients is not atomic<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 8772d09ae7ed23f8d29a8f3404c42ae095c53431</p> <p>We hit this LBUG when running insanity test4. (According to the crash dump, <a href="https://jira.whamcloud.com/browse/LU-11001" title="insanity test_2: :check_for_recovery_ready()) ASSERTION( clnts &lt;= obd-&gt;obd_max_recoverable_clients )" class="issue-link" data-issue-key="LU-11001"><del>LU-11001</del></a> seems to be the same issue) </p> <p> </p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> 00010000:00040000:0.0:1520239440.432805:0:10096:0:(ldlm_lib.c:2206:check_for_recovery_ready()) ASSERTION( clnts &lt;= obd-&gt;obd_max_recoverable_clients ) failed: 00010000:00040000:0.0:1520239440.432814:0:10096:0:(ldlm_lib.c:2206:check_for_recovery_ready()) LBUG </pre> </div></div> <p>After applying this patch, this LBUG have not been reproduced.</p> <p> </p> <p> </p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/35914/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/35914/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12691" title="obd_max_recoverable_clients is not atomic" class="issue-link" data-issue-key="LU-12691"><del>LU-12691</del></a> ldlm: obd_max_recoverable_clients is not atomic<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 01261e7b563adc97899d962f0ba2d1b430894bf7</p> <p>Landed for 2.13</p> <p>Minh Diep (mdiep@whamcloud.com) uploaded a new patch: <a href="https://review.whamcloud.com/36878" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36878</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12691" title="obd_max_recoverable_clients is not atomic" class="issue-link" data-issue-key="LU-12691"><del>LU-12691</del></a> ldlm: obd_max_recoverable_clients is not atomic<br/> Project: fs/lustre-release<br/> Branch: b2_12<br/> Current Patch Set: 1<br/> Commit: fe66543cb7e0abdd0daaf8c4be0fccf41f299787</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/36878/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36878/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12691" title="obd_max_recoverable_clients is not atomic" class="issue-link" data-issue-key="LU-12691"><del>LU-12691</del></a> ldlm: obd_max_recoverable_clients is not atomic<br/> Project: fs/lustre-release<br/> Branch: b2_12<br/> Current Patch Set: <br/> Commit: ccd89f519d4cdb3ebf971edf178f9cd2e664beec</p> Duplicate LU-11001 Development Rank 1|i00lrb: Rank (Obsolete) 9223372036854775807 Severity