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-6656 Lustre <p>In qmt_glimpse_lock:</p> <p>While the resource lock (a spin lock) is held, it does</p> <p>OBD_ALLOC_PTR(work);</p> <p>This allocation is not atomic, so it can potentially sleep.</p> <p>Sleeping with a spinlock held is not a good idea in general, and (per Andreas) it is specifically not allowed for GFP_NOFS allocations.</p> LU-6656

Non atomic allocation under spin lock in qmt_glimpse_lock

Bug Minor Resolved Not a Bug WC Triage Patrick Farrell Wed, 27 May 2015 21:00:55 +0000 Tue, 14 Dec 2021 22:36:37 +0000 Tue, 14 Dec 2021 22:36:37 +0000 Lustre 2.8.0 0 2 <p>Patrick Farrell (paf@cray.com) uploaded a new patch: <a href="http://review.whamcloud.com/14974" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/14974</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-6656" title="Non atomic allocation under spin lock in qmt_glimpse_lock" class="issue-link" data-issue-key="LU-6656"><del>LU-6656</del></a> qmt: Fix non-atomic allocation under lock<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: adc86369e7df08dd71bb9fa605554f7ffa44ef1f</p> Development Rank 1|hzxedb: Rank (Obsolete) 9223372036854775807 Severity