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-16633 Lustre <p>wait_woken() called from obd_get_mod_rpc_slot() resets WQ_FLAG_WOKEN flag, but leaves the corresponding wq_entry on the list.<br/> __wake_up_locked_key() (called from obd_put_mod_rpc() in another thread) finds that wq_entry on the list w/o WQ_FLAG_WOKEN set, consumes one more slot (cl_mod_rpcs_in_flight++).<br/> this way we leak slots.<br/> this can be catched with sanity/182b.</p> LU-16633

obd_get_mod_rpc_slot() is vulnerable to races

Bug Minor Resolved Fixed Alex Zhuravlev Alex Zhuravlev Sat, 11 Mar 2023 10:30:32 +0000 Mon, 11 Dec 2023 07:18:44 +0000 Wed, 29 Mar 2023 03:29:33 +0000 Lustre 2.16.0 Lustre 2.16.0 0 7 <p>confirmed with AT with <a href="https://review.whamcloud.com/#/c/fs/lustre-release/+/50261/2:" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/#/c/fs/lustre-release/+/50261/2:</a> <a href="https://testing.whamcloud.com/test_sets/2df6460e-17a8-4b75-9abe-313301f0a9dc" class="external-link" target="_blank" rel="nofollow noopener">https://testing.whamcloud.com/test_sets/2df6460e-17a8-4b75-9abe-313301f0a9dc</a></p> <p>"Alex Zhuravlev &lt;bzzz@whamcloud.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/50261" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/50261</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-16633" title="obd_get_mod_rpc_slot() is vulnerable to races" class="issue-link" data-issue-key="LU-16633"><del>LU-16633</del></a> obdclass: fix rpc slot leakage<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 11<br/> Commit: 238afb52dc57bbfe4db6c3736d9d651903b8ad05</p> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/c/fs/lustre-release/+/50261/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/c/fs/lustre-release/+/50261/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-16633" title="obd_get_mod_rpc_slot() is vulnerable to races" class="issue-link" data-issue-key="LU-16633"><del>LU-16633</del></a> obdclass: fix rpc slot leakage<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 91a3726f313df33e099320d171039f8371fec27f</p> <p>Landed for 2.16</p> <p>"Etienne AUJAMES &lt;eaujames@ddn.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/c/fs/lustre-release/+/51539" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/c/fs/lustre-release/+/51539</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-16633" title="obd_get_mod_rpc_slot() is vulnerable to races" class="issue-link" data-issue-key="LU-16633"><del>LU-16633</del></a> obdclass: fix rpc slot leakage<br/> Project: fs/lustre-release<br/> Branch: b2_15<br/> Current Patch Set: 1<br/> Commit: 1fb91b79be498564e6c537228fd4d411b58dcda3</p> Related LU-15947 LU-16404 Development Rank 1|i03g3j: Rank (Obsolete) 9223372036854775807 Severity