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-12441 Lustre <p>This leads to some false-positive "timeouts". In the excerpt below we see the response tracker attached to the ping msg, we see the reply, but we never unlink the md so the response tracker does not get detached.</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>00000400:00000200:26.0:1560633919.659270:0:2482:0:(router.c:1045:lnet_ping_router_locked()) Check: 12345-93@gni4 00000400:00000200:26.0:1560633919.659290:0:2482:0:(lib-move.c:4844:LNetGet()) LNetGet msg ffff8807832cdc00 -&gt; 12345-93@gni4 00000400:00000200:26.0:1560633919.659291:0:2482:0:(lib-msg.c:364:lnet_msg_attach_md()) attached md ffff88078a861f68 to msg ffff8807832cdc00 00000400:00000200:26.0:1560633919.659293:0:2482:0:(lib-move.c:4505:lnet_attach_rsp_tracker()) Add rspt ffff88078b5ef000 to md ffff88078a861f68 dl 1560633969s ne false 00000400:00000200:6.0:1560633919.659345:0:2479:0:(lib-msg.c:775:lnet_msg_detach_md()) ffff88078a861f68 ref 0 fl 2 thr -1 opt 10 off 0 size 0 len 272 msg ffff8807832cdc00 unlink false 00000400:00000200:6.0:1560633919.659466:0:2479:0:(lib-move.c:3890:lnet_parse_reply()) 60@gni4: Reply msg ffff88078c803800 from 12345-93@gni4 of length 80/80 into md 0x65931 00000400:00000200:6.0:1560633919.659467:0:2479:0:(lib-msg.c:364:lnet_msg_attach_md()) attached md ffff88078a861f68 to msg ffff88078c803800 00000400:00000200:6.0:1560633919.659474:0:2479:0:(router.c:120:lnet_notify_locked()) Old news 00000400:00000200:6.0:1560633919.659475:0:2479:0:(lib-msg.c:775:lnet_msg_detach_md()) ffff88078a861f68 ref 0 fl 2 thr -1 opt 10 off 0 size 0 len 272 msg ffff88078c803800 unlink false 00000400:00000200:6.0:1560633919.659507:0:2479:0:(router.c:120:lnet_notify_locked()) Old news 00000400:00000200:6.0:1560633919.659578:0:2479:0:(router.c:120:lnet_notify_locked()) Old news 00000400:00000200:6.0:1560633919.659619:0:2479:0:(router.c:120:lnet_notify_locked()) Old news 00000400:00000100:26.0:1560633977.003290:0:2482:0:(lib-move.c:2781:lnet_finalize_expired_responses()) Response timed out: md = ffff88078a861f68: nid = 93@gni4 </pre> </div></div> LU-12441

Response tracker is not detached on router ping reply

Bug Minor Resolved Fixed Chris Horn Chris Horn Sat, 15 Jun 2019 21:51:38 +0000 Thu, 12 Dec 2019 19:45:00 +0000 Fri, 9 Aug 2019 15:15:21 +0000 Lustre 2.13.0 Lustre 2.12.2 Lustre 2.13.0 Lustre 2.12.4 0 3 <p>I think the solution here is to detach the response tracker in lnet_router_checker_event() for the reply case.</p> <p>Edit - Removed reference to abandoned patch</p> <p>Chris Horn (hornc@cray.com) uploaded a new patch: <a href="https://review.whamcloud.com/35452" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/35452</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12441" title="Response tracker is not detached on router ping reply" class="issue-link" data-issue-key="LU-12441"><del>LU-12441</del></a> lnet: response tracker cleanup<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 5812fe14104d090b65be0c353e9088b079e0ce42</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/35452/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/35452/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12441" title="Response tracker is not detached on router ping reply" class="issue-link" data-issue-key="LU-12441"><del>LU-12441</del></a> lnet: Detach rspt when md_threshold is infinite<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: ebbf909a1c2d0f5400da2d98e1bb274a9e82e0a5</p> <p>Landed for 2.13</p> <p>Amir Shehata (ashehata@whamcloud.com) uploaded a new patch: <a href="https://review.whamcloud.com/36634" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36634</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12441" title="Response tracker is not detached on router ping reply" class="issue-link" data-issue-key="LU-12441"><del>LU-12441</del></a> lnet: Detach rspt when md_threshold is infinite<br/> Project: fs/lustre-release<br/> Branch: b2_12<br/> Current Patch Set: 1<br/> Commit: bf8bfe8338ac6d3a5715f66f1f845b9618d270dc</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/36634/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36634/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12441" title="Response tracker is not detached on router ping reply" class="issue-link" data-issue-key="LU-12441"><del>LU-12441</del></a> lnet: Detach rspt when md_threshold is infinite<br/> Project: fs/lustre-release<br/> Branch: b2_12<br/> Current Patch Set: <br/> Commit: c095fbda55ca632cff2696550f22a13a19ee4514</p> Related LU-12568 LU-12906 LU-12907 Development Rank 1|i00iav: Rank (Obsolete) 9223372036854775807 Severity