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-17089 Lustre <p>The barrier code has a bug that could cause the freeze to fail everytime. barrier freeze would be called before trying a FS backup, but would repeatedly fail due to an issue in the mdd_trans_create() function.</p> <p><a href="https://git.whamcloud.com/?p=fs/lustre-release.git;a=blob;f=lustre/mdd/mdd_trans.c;hb=2b0a71081d9c2465cb4b6368fede266fcde91b82#l49" class="external-link" target="_blank" rel="nofollow noopener">https://git.whamcloud.com/?p=fs/lustre-release.git;a=blob;f=lustre/mdd/mdd_trans.c;hb=2b0a71081d9c2465cb4b6368fede266fcde91b82#l49</a></p> <p>The barrier entry increments the global counter barrier_writer, but it does not get decremented if mdd_child_ops() returns error. If the barrier_writer counter does not go to 0, the freeze cannot happen.</p> LU-17089

Bug in the barrier code could cause barrier freeze to fail everytime

Bug Minor Resolved Fixed Tim Day Tim Day Tue, 5 Sep 2023 14:03:33 +0000 Thu, 28 Sep 2023 15:09:39 +0000 Thu, 28 Sep 2023 15:09:39 +0000 Lustre 2.16.0 0 2 <p>"Timothy Day &lt;timday@amazon.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/c/fs/lustre-release/+/52275" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/c/fs/lustre-release/+/52275</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-17089" title="Bug in the barrier code could cause barrier freeze to fail everytime" class="issue-link" data-issue-key="LU-17089"><del>LU-17089</del></a> mdd: fix for bi_writers ref counter in case of error<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: d0dcd83758b45357e9d59ba10e2bb23d430b05ce</p> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/c/fs/lustre-release/+/52275/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/c/fs/lustre-release/+/52275/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-17089" title="Bug in the barrier code could cause barrier freeze to fail everytime" class="issue-link" data-issue-key="LU-17089"><del>LU-17089</del></a> mdd: fix for bi_writers ref counter in case of error<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: f667cc6a477e0e17b5263669b4592668fbf005bb</p> <p>Landed for 2.16</p> Development Rank 1|i03uov: Rank (Obsolete) 9223372036854775807 Severity