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-12264 Lustre <p>This issue was discovered while testing the MR routing feature, but the bug exists in, at least, master and b2_12 as well.</p> <p>On an initial call to lnet_select_pathway(), messages are added to a peer's discovery queue only under protection of lnet_net_lock_current(). If two threads are sending to the same peer, but that peer is pending discovery, and the two threads are on different CPTs, then it is possible for them to perform the list add at the same time. This can result in corruption of the list.</p> LU-12264

The lnet peer discovery queue (lnet_peer.lp_dc_pendq) is susceptible to concurrent manipulation

Bug Major Resolved Fixed Chris Horn Chris Horn Thu, 2 May 2019 23:00:42 +0000 Tue, 8 Oct 2019 17:02:06 +0000 Fri, 26 Jul 2019 04:42:05 +0000 Lustre 2.13.0 Lustre 2.12.2 Lustre 2.13.0 Lustre 2.12.3 0 3 <p>Chris Horn (hornc@cray.com) uploaded a new patch: <a href="https://review.whamcloud.com/34798" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/34798</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12264" title="The lnet peer discovery queue (lnet_peer.lp_dc_pendq) is susceptible to concurrent manipulation" class="issue-link" data-issue-key="LU-12264"><del>LU-12264</del></a> lnet: Protect lp_dc_pendq manipulation with lp_lock<br/> Project: fs/lustre-release<br/> Branch: multi-rail<br/> Current Patch Set: 1<br/> Commit: e1dc62e05db9b17fc0ddbe463fd68aef3eed1ff0</p> <p>Amir Shehata (ashehata@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/34798/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/34798/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12264" title="The lnet peer discovery queue (lnet_peer.lp_dc_pendq) is susceptible to concurrent manipulation" class="issue-link" data-issue-key="LU-12264"><del>LU-12264</del></a> lnet: Protect lp_dc_pendq manipulation with lp_lock<br/> Project: fs/lustre-release<br/> Branch: multi-rail<br/> Current Patch Set: <br/> Commit: dd16a31bf4ae874a69cc7dc5fe1f3197993630ae</p> <p>Minh Diep (mdiep@whamcloud.com) uploaded a new patch: <a href="https://review.whamcloud.com/36037" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36037</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12264" title="The lnet peer discovery queue (lnet_peer.lp_dc_pendq) is susceptible to concurrent manipulation" class="issue-link" data-issue-key="LU-12264"><del>LU-12264</del></a> lnet: Protect lp_dc_pendq manipulation with lp_lock<br/> Project: fs/lustre-release<br/> Branch: b2_12<br/> Current Patch Set: 1<br/> Commit: 84a6d4de7d664ad0248f496ee0187f88921b20f7</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/36037/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36037/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12264" title="The lnet peer discovery queue (lnet_peer.lp_dc_pendq) is susceptible to concurrent manipulation" class="issue-link" data-issue-key="LU-12264"><del>LU-12264</del></a> lnet: Protect lp_dc_pendq manipulation with lp_lock<br/> Project: fs/lustre-release<br/> Branch: b2_12<br/> Current Patch Set: <br/> Commit: 0963d01e04e10ec09b6db045fe4110bf954d2b57</p> Development Rank 1|i00ftb: Rank (Obsolete) 9223372036854775807 Severity