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-8496 Lustre <p>Follow error seen with the test patch which shows race in changelog clear path.</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java">LustreError: 18671:0:(llog_osd.c:854:llog_osd_next_block()) ASSERTION( dt ) failed: LustreError: 18671:0:(llog_osd.c:854:llog_osd_next_block()) LBUG Pid: 18671, comm: mdt00_001 Call Trace: [&lt;ffffffffa0457875&gt;] libcfs_debug_dumpstack+0x55/0x80 [libcfs] [&lt;ffffffffa0457e77&gt;] lbug_with_loc+0x47/0xb0 [libcfs] [&lt;ffffffffa05b04f0&gt;] llog_osd_declare_destroy+0x0/0x740 [obdclass] [&lt;ffffffffa059f03e&gt;] llog_process_thread+0x28e/0x1050 [obdclass] [&lt;ffffffffa059fec8&gt;] llog_process_or_fork+0xc8/0x490 [obdclass] [&lt;ffffffffa0dc0b60&gt;] ? llog_changelog_cancel_cb+0x0/0x1d0 [mdd] [&lt;ffffffffa05a36f8&gt;] llog_cat_process_cb+0x458/0x600 [obdclass] [&lt;ffffffffa059f6aa&gt;] llog_process_thread+0x8fa/0x1050 [obdclass] [&lt;ffffffffa059fec8&gt;] llog_process_or_fork+0xc8/0x490 [obdclass] [&lt;ffffffffa05a32a0&gt;] ? llog_cat_process_cb+0x0/0x600 [obdclass] [&lt;ffffffffa05a32a0&gt;] ? llog_cat_process_cb+0x0/0x600 [obdclass] [&lt;ffffffffa05a1999&gt;] llog_cat_process_or_fork+0x1a9/0x2f0 [obdclass] [&lt;ffffffffa0dc0b60&gt;] ? llog_changelog_cancel_cb+0x0/0x1d0 [mdd] [&lt;ffffffffa0dc0b60&gt;] ? llog_changelog_cancel_cb+0x0/0x1d0 [mdd] [&lt;ffffffffa0463021&gt;] ? libcfs_debug_msg+0x41/0x50 [libcfs] [&lt;ffffffffa05a1b6e&gt;] llog_cat_process+0x2e/0x30 [obdclass] [&lt;ffffffffa0dc098f&gt;] llog_changelog_cancel+0x5f/0x230 [mdd] [&lt;ffffffffa0dc4be5&gt;] ? mdd_changelog_write_header+0x3a5/0x4d0 [mdd] [&lt;ffffffffa05a5d88&gt;] llog_cancel+0x58/0x230 [obdclass] [&lt;ffffffffa0dc6d02&gt;] mdd_changelog_user_purge+0x472/0x770 [mdd] [&lt;ffffffffa0dc71ca&gt;] mdd_iocontrol+0x1ca/0xaf0 [mdd] [&lt;ffffffffa0e2d8b9&gt;] mdt_ioc_child+0x149/0x1d0 [mdt] </pre> </div></div> LU-8496

Race is changelog clear path

Bug Minor Closed Won't Do WC Triage Rahul Deshmukh patch Thu, 11 Aug 2016 09:15:19 +0000 Mon, 16 Apr 2018 11:30:35 +0000 Mon, 16 Apr 2018 11:30:35 +0000 0 4 <p>Rahul Deshmukh (rahul.deshmukh@seagate.com) uploaded a new patch: <a href="http://review.whamcloud.com/21881" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/21881</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-8496" title="Race is changelog clear path" class="issue-link" data-issue-key="LU-8496"><del>LU-8496</del></a> tests: lfs changelog_clear race test<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 2997c5b6cda1e96993389df8840cb214578b5c04</p> <p>Rahul Deshmukh (rahul.deshmukh@seagate.com) uploaded a new patch: <a href="http://review.whamcloud.com/21882" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/21882</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-8496" title="Race is changelog clear path" class="issue-link" data-issue-key="LU-8496"><del>LU-8496</del></a> llog: avoid llog cancel race<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 03767e03e419f7efb80d3436dff8b8c82d12b0e3</p> <p>First patch is re-producer. Second patch is push on top os first to show that it fixes the problem. I have tested this locally. The re-producer is slow test, so not sure if it will be run on normal run (Or need help on how to run it). </p> <p>This fix is not needed since llog api has been changed to use osd devices.</p> Related LU-6699 Development Rank 1|hzykfz: Rank (Obsolete) 9223372036854775807 Severity