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-12374] client went down w/ panic during lustre_rmmod https://jira.whamcloud.com/browse/LU-12374 Lustre <p>client went down with panic during lustre_rmmod.</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>crash&gt; bt PID: 19 TASK: ffff8e8a5b0b30c0 CPU: 22 COMMAND: "rcuos/1" #0 [ffff8e8a5b0cbaa0] machine_kexec at ffffffffa5263674 #1 [ffff8e8a5b0cbb00] __crash_kexec at ffffffffa531ce12 #2 [ffff8e8a5b0cbbd0] crash_kexec at ffffffffa531cf00 #3 [ffff8e8a5b0cbbe8] oops_end at ffffffffa596c758 #4 [ffff8e8a5b0cbc10] no_context at ffffffffa595aa7e #5 [ffff8e8a5b0cbc60] __bad_area_nosemaphore at ffffffffa595ab15 #6 [ffff8e8a5b0cbcb0] bad_area_nosemaphore at ffffffffa595ac86 #7 [ffff8e8a5b0cbcc0] __do_page_fault at ffffffffa596f6b0 #8 [ffff8e8a5b0cbd30] do_page_fault at ffffffffa596f915 #9 [ffff8e8a5b0cbd60] page_fault at ffffffffa596b758 [exception RIP: unknown or invalid address] RIP: ffffffffc13157a0 RSP: ffff8e8a5b0cbe10 RFLAGS: 00010292 RAX: ffff8e8a5b0cbfd8 RBX: ffff8eb8d8d637a8 RCX: dead000000000200 RDX: ffffffffc13157a0 RSI: 0000000000000297 RDI: ffff8eb8d8d637a8 RBP: ffff8e8a5b0cbec0 R8: ffff8e8a5b0cbe80 R9: 0000000000000000 R10: 0000000000000004 R11: 0000000000000005 R12: 0000000000000000 R13: ffff8eb8dd25f218 R14: 0000000000000000 R15: ffff8ea0dbcf0a70 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 #10 [ffff8e8a5b0cbe10] rcu_nocb_kthread at ffffffffa53532bc #11 [ffff8e8a5b0cbec8] kthread at ffffffffa52c1c31 #12 [ffff8e8a5b0cbf50] ret_from_fork_nospec_begin at ffffffffa5974c1d crash&gt; ps |grep lustre_rmmod 41960 41832 30 ffff8ea4ef4d5140 IN 0.0 115300 1596 lustre_rmmod crash&gt; </pre> </div></div> LU-12374 client went down w/ panic during lustre_rmmod Bug Minor Resolved Fixed Wang Shilong Wang Shilong Sat, 1 Jun 2019 12:04:16 +0000 Thu, 20 Jun 2019 22:27:38 +0000 Fri, 7 Jun 2019 04:15:45 +0000 Lustre 2.13.0 Lustre 2.12.3 0 2 <p>Wang Shilong (wshilong@ddn.com) uploaded a new patch: <a href="https://review.whamcloud.com/35030" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/35030</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12374" title="client went down w/ panic during lustre_rmmod" class="issue-link" data-issue-key="LU-12374"><del>LU-12374</del></a> lustre: push rcu_barrier() before destroying slab<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 739ea274212f19fcabf28b46b4031f78942d6c13</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/35030/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/35030/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12374" title="client went down w/ panic during lustre_rmmod" class="issue-link" data-issue-key="LU-12374"><del>LU-12374</del></a> lustre: push rcu_barrier() before destroying slab<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 1f7613968c800f99ed074f17cd7ba1086847d2db</p> <p>Landed for 2.13</p> <p>Minh Diep (mdiep@whamcloud.com) uploaded a new patch: <a href="https://review.whamcloud.com/35097" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/35097</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12374" title="client went down w/ panic during lustre_rmmod" class="issue-link" data-issue-key="LU-12374"><del>LU-12374</del></a> lustre: push rcu_barrier() before destroying slab<br/> Project: fs/lustre-release<br/> Branch: b2_12<br/> Current Patch Set: 1<br/> Commit: 4d531509a07079f24273bfce19f97545ec2d7b15</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/35097/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/35097/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12374" title="client went down w/ panic during lustre_rmmod" class="issue-link" data-issue-key="LU-12374"><del>LU-12374</del></a> lustre: push rcu_barrier() before destroying slab<br/> Project: fs/lustre-release<br/> Branch: b2_12<br/> Current Patch Set: <br/> Commit: 8c67c977444885abf863b656fb66721ac4515f49</p> Related LU-11063 Development Rank 1|i00hef: Rank (Obsolete) 9223372036854775807 Severity