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-16393 Lustre <p>Before lnd startup is complete, there's a window of time when o2iblnd can reject connection requests similar to the following:</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> Nov 16 08:24:18 ai400x2vm-008 kernel: LNetError: 7758:0:(o2iblnd_cb.c:2480:kiblnd_passive_connect()) Can't accept conn from 172.16.16.12@o2ib on NA (ib0:0:172.16.0.192): bad dst nid 172.16.0.192@o2ib Nov 16 08:24:19 ai400x2vm-008 kernel: LNetError: 7758:0:(o2iblnd_cb.c:2480:kiblnd_passive_connect()) Can't accept conn from 172.16.16.187@o2ib on NA (ib0:0:172.16.0.192): bad dst nid 172.16.0.192@o2ib Nov 16 08:24:19 ai400x2vm-008 kernel: LNetError: 7758:0:(o2iblnd_cb.c:2480:kiblnd_passive_connect()) Skipped 54 previous similar messages Nov 16 08:24:19 ai400x2vm-008 kernel: LNet: Added LNI 172.16.0.192@o2ib [32/5120/0/180] Nov 16 08:24:19 ai400x2vm-008 kernel: LNet: Using FastReg <span class="code-keyword">for</span> registration Nov 16 08:24:20 ai400x2vm-008 kernel: LNetError: 7758:0:(o2iblnd_cb.c:2480:kiblnd_passive_connect()) Can't accept conn from 172.16.0.58@o2ib on NA (ib0:1:172.16.0.192): bad dst nid 172.16.0.192@o2ib Nov 16 08:24:20 ai400x2vm-008 kernel: LNetError: 7758:0:(o2iblnd_cb.c:2480:kiblnd_passive_connect()) Skipped 180 previous similar messages Nov 16 08:24:20 ai400x2vm-008 kernel: LNet: Added LNI 172.16.16.192@o2ib [32/5120/0/180]</pre> </div></div> <p>Look into getting rid of this race condition.</p> LU-16393

o2iblnd: connections rejected before lnd startup is complete

Bug Minor Resolved Fixed Serguei Smirnov Serguei Smirnov Tue, 13 Dec 2022 22:12:18 +0000 Fri, 8 Dec 2023 18:17:34 +0000 Sat, 19 Aug 2023 12:18:27 +0000 Lustre 2.16.0 0 4 <p>Is it correct that a client with a rejected connection (during this race window on a server) would report an error message like the following?</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> LNetError: 353407:0:(o2iblnd_cb.c:2951:kiblnd_rejected()) 192.168.23.45@o2ib rejected: o2iblnd fatal error</pre> </div></div> <p> </p> <p>Hi Nathan,</p> <p>Yes, my understanding is that this is correct.</p> <p>"Serguei Smirnov &lt;ssmirnov@whamcloud.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/c/fs/lustre-release/+/51651" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/c/fs/lustre-release/+/51651</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-16393" title="o2iblnd: connections rejected before lnd startup is complete" class="issue-link" data-issue-key="LU-16393"><del>LU-16393</del></a> o2iblnd: add IBLND_REJECT_EARLY reject reason<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 93fe169eef88e8ab31acd01b8c5b3084f1de93ad</p> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/c/fs/lustre-release/+/51651/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/c/fs/lustre-release/+/51651/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-16393" title="o2iblnd: connections rejected before lnd startup is complete" class="issue-link" data-issue-key="LU-16393"><del>LU-16393</del></a> o2iblnd: add IBLND_REJECT_EARLY reject reason<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 673ff86a84ad5d11cde24aa7411c45385ad1c633</p> <p>Landed for 2.16</p> Related LU-17071 Development Rank 1|i037vj: Rank (Obsolete) 9223372036854775807 Severity