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-15124 Lustre <p>sanity-flr subtest 208 can't umount client:</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> sanity-flr test_208a: @@@@@@ FAIL: umount failed Trace dump: = ./../tests/test-framework.sh:6329:error() = sanity-flr.sh:3717:check_ost_used() = sanity-flr.sh:3775:test_208a() = ./../tests/test-framework.sh:6633:run_one() = ./../tests/test-framework.sh:6680:run_one_logged() = ./../tests/test-framework.sh:6521:run_test() </pre> </div></div> <p>this is due to running process left by subtest 70</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> 32663 ? S 0:07 /mnt/build/lustre/tests/../utils/lfs mirror split -d --mirror-id=1 /mnt/lustre/d70.sanity-flr/f70.sanity-flr </pre> </div></div> LU-15124

sanity-flr is unable to umount client

Bug Minor Closed Duplicate WC Triage Alex Zhuravlev Mon, 18 Oct 2021 17:00:25 +0000 Fri, 15 Apr 2022 19:28:33 +0000 Fri, 15 Apr 2022 19:28:33 +0000 Upstream 0 2 <p>"Alex Zhuravlev &lt;bzzz@whamcloud.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/45280" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/45280</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15124" title="sanity-flr is unable to umount client" class="issue-link" data-issue-key="LU-15124"><del>LU-15124</del></a> tests: sanity-flr/70 to wait for completion<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 0f1579e30199b1afe2320d28644d313de7fcfb77</p> <p>there must be something else... the test creates a tiny file in a loop:</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> <span class="code-keyword">while</span> <span class="code-keyword">true</span>; <span class="code-keyword">do</span> rm -f $tf $LFS mirror create -N -E 1M -c -1 -E eof -N $tf echo xxxx &gt; $tf </pre> </div></div> <p>and another process is removing replica in a loop as well:</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> <span class="code-keyword">while</span> <span class="code-keyword">true</span>; <span class="code-keyword">do</span> $LFS mirror split -d --mirror-id=1 $tf &amp;&gt; /dev/<span class="code-keyword">null</span> done &amp; </pre> </div></div> <p>the interesting thing is how mirror splitting may grab that much CPU time</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> 32776 ? R 0:07 /mnt/build/lustre/tests/../utils/lfs mirror split -d --mirror-id=1 /mnt/lustre/d70.sanity-flr/f70.sanity-flr </pre> </div></div> <p>lfs gets stuck on the client side:</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> [ 751.563462] lfs S 0 32785 1 0x00000000 [ 751.563509] Call Trace: [ 751.563540] ? __schedule+0x2ab/0xa80 [ 751.563579] schedule+0x2a/0x80 [ 751.563619] schedule_timeout+0x1d9/0x500 [ 751.563658] ? collect_expired_timers+0xa0/0xa0 [ 751.563714] lov_io_init_composite+0x1ab2/0x1b70 [lov] [ 751.563769] lov_io_init+0x19a/0x320 [lov] [ 751.563841] cl_io_init0.isra.2+0x7f/0x150 [obdclass] [ 751.563934] cl_glimpse_size0+0x82/0x240 [lustre] [ 751.564001] ll_getattr_dentry+0x624/0xa30 [lustre] [ 751.564058] vfs_statx+0x74/0xb0 [ 751.564100] __se_sys_newlstat+0x26/0x40 [ 751.564141] do_syscall_64+0x4b/0x190 [ 751.564182] entry_SYSCALL_64_after_hwframe+0x6a/0xdf </pre> </div></div> <p>can't reproduce when <a href="https://jira.whamcloud.com/browse/LU-15300" title="mirror resync can cause EIO to unrelated applications" class="issue-link" data-issue-key="LU-15300"><del>LU-15300</del></a> applied</p> Development Rank 1|i027nj: Rank (Obsolete) 9223372036854775807 Severity