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-12217 Lustre <p> ll_migrate() takes inode_lock and sends OST_GETATTR<br/> via ll_data_version(). The server sends BL AST to<br/> a truncate on the same client to release osc lock<br/> but it waits for the inode lock.<br/> It's a wrong locking order beacause all osc operations<br/> take ldlm locks before inode_lock.</p> <p> inode_lock was added to protect from simultaneous migrates<br/> from 1 client. But lli_lsm_sem is taken for parent,<br/> so inode_lock isn't needed.</p> LU-12217

ll_migrate() vs truncate deadlock

Bug Minor Open Unresolved Andriy Skulysh Andriy Skulysh Wed, 24 Apr 2019 10:01:07 +0000 Wed, 29 May 2019 15:26:44 +0000 0 2 <p>Andriy Skulysh (c17819@cray.com) uploaded a new patch: <a href="https://review.whamcloud.com/34752" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/34752</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12217" title="ll_migrate() vs truncate deadlock" class="issue-link" data-issue-key="LU-12217">LU-12217</a> llite: ll_migrate() vs truncate deadlock<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: d5286b9387032a093cfde379b1ce51facfae37ef</p> Development Rank 1|i00f9r: Rank (Obsolete) 9223372036854775807 Severity