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-17092 Lustre <p>Umount getting stuck on compute nodes.</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> 24109 umount [&lt;0&gt;] ll_kill_super+0x7e/0x150 [lustre] [&lt;0&gt;] lustre_kill_super+0x2b/0x40 [obdclass] [&lt;0&gt;] deactivate_locked_super+0x34/0x70 [&lt;0&gt;] cleanup_mnt+0x3b/0x70 [&lt;0&gt;] task_work_run+0xa3/0xe0 [&lt;0&gt;] exit_to_usermode_loop+0xef/0x100 [&lt;0&gt;] do_syscall_64+0x19c/0x1b0 [&lt;0&gt;] entry_SYSCALL_64_after_hwframe+0x61/0xc6 </pre> </div></div> <p>Looks like a duplicate of <a href="https://jira.whamcloud.com/browse/LU-14883" title="umount blocked due to remaining statahead threads" class="issue-link" data-issue-key="LU-14883">LU-14883</a>.</p> <p>Here are statahead threads</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> 11580 ll_sa_11521 [&lt;0&gt;] ll_statahead_thread+0xc87/0x1210 [lustre] [&lt;0&gt;] kthread+0x124/0x140 [&lt;0&gt;] ret_from_fork+0x35/0x40 11581 ll_agl_11521 [&lt;0&gt;] ll_agl_thread+0x495/0x500 [lustre] [&lt;0&gt;] kthread+0x124/0x140 [&lt;0&gt;] ret_from_fork+0x35/0x40 </pre> </div></div> client client-2.12.8_ddn12 <br/> server: lustre-2.15.3 LU-17092

umount stuck

Bug Major Open Unresolved Qian Yingjin Mahmoud Hanafi Wed, 6 Sep 2023 02:49:25 +0000 Sat, 14 Oct 2023 14:49:26 +0000 Lustre 2.12.8 0 4 <p>Yingjin</p> <p>Could you please investigate?</p> <p>Thanks</p> <p>Peter</p> <p>This seems to be a duplicate of <a href="https://jira.whamcloud.com/browse/LU-15660" title="parallel-scale-nfsv4 test_racer_on_nfs: statahead doesn&#39;t stop" class="issue-link" data-issue-key="LU-15660"><del>LU-15660</del></a>.</p> <p>Thanks <a href="https://jira.whamcloud.com/secure/ViewProfile.jspa?name=qian_wc" class="user-hover" rel="qian_wc">qian_wc</a> . Mahmoud, have you tried the effectiveness of <a href="https://review.whamcloud.com/#/c/fs/lustre-release/+/52300/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/#/c/fs/lustre-release/+/52300/</a> ?</p> <p>We are waiting for DDN to provide us with a client that has the patch.</p> <p>OK. I have not seen that request coming through support channels, but it may well be handled at the support level.</p> Related LU-15660 Development Rank 1|i03urr: Rank (Obsolete) 9223372036854775807 Severity