Whamcloud Community JIRA https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 [LU-13667] ptlrpc_pinger_main is stuck in endless loop https://jira.whamcloud.com/browse/LU-13667 Lustre <p>In ptlrpc_pinger_main, the process of the pingable imports or obd_update_maxusage<br/> could cost long time and be stuck in endless loop because of the negative timeout<br/> returned by pinger_check_timeout</p> LU-13667 ptlrpc_pinger_main is stuck in endless loop Bug Minor Resolved Fixed Hongchao Zhang Hongchao Zhang Fri, 12 Jun 2020 03:41:06 +0000 Sat, 17 Oct 2020 14:50:11 +0000 Sat, 11 Jul 2020 16:01:34 +0000 Lustre 2.14.0 Lustre 2.12.6 0 5 <p>Hongchao Zhang (hongchao@whamcloud.com) uploaded a new patch: <a href="https://review.whamcloud.com/38915" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/38915</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13667" title="ptlrpc_pinger_main is stuck in endless loop" class="issue-link" data-issue-key="LU-13667"><del>LU-13667</del></a> ptlrpc: fix endless loop issue<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 9ccad707e88b3b2bc118eac588817737cb9da1c9</p> <p>I believe we hit this today on a Lustre 2.12.4 client. The pinger was taking 100% of a core. Over 498 seconds, the "next wakeup in" message appeared in the debug log 76,716 times, and the time_to_next_wake started at -41,852 and ended at -42,350 (getting more and more negative with time).</p> <p>Please let me know whether you agree my described symptoms match this issue, thanks.</p> <p>Yes, it should be the same issue with this ticket.</p> <p>Thank you. This should go into b2_12 after it's merged to master.</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/38915/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/38915/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13667" title="ptlrpc_pinger_main is stuck in endless loop" class="issue-link" data-issue-key="LU-13667"><del>LU-13667</del></a> ptlrpc: fix endless loop issue<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 6be2dbb2595121fabceda86c5f7bdcb45e10b320</p> <p>Landed for 2.14</p> <p>Minh Diep (mdiep@whamcloud.com) uploaded a new patch: <a href="https://review.whamcloud.com/39344" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/39344</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13667" title="ptlrpc_pinger_main is stuck in endless loop" class="issue-link" data-issue-key="LU-13667"><del>LU-13667</del></a> ptlrpc: fix endless loop issue<br/> Project: fs/lustre-release<br/> Branch: b2_12<br/> Current Patch Set: 1<br/> Commit: 5acd6853b4a64057ce55174a15a93b11d2922eab</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/39344/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/39344/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13667" title="ptlrpc_pinger_main is stuck in endless loop" class="issue-link" data-issue-key="LU-13667"><del>LU-13667</del></a> ptlrpc: fix endless loop issue<br/> Project: fs/lustre-release<br/> Branch: b2_12<br/> Current Patch Set: <br/> Commit: 95cd26446e16c63b531ed94a844b5f69c8b3730f</p> Related Development Rank 1|i012lb: Rank (Obsolete) 9223372036854775807 Severity