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-17314 Lustre <p> </p> <p>We hit LBUG in 2.15.3 it looks like a duplicate of <a href="https://jira.whamcloud.com/browse/LU-16430" title="ASSERTION( !list_empty(&amp;req-&gt;rq_srv.sr_timed_list) ) failed" class="issue-link" data-issue-key="LU-16430"><del>LU-16430</del></a>. If it is a duplicate can we get a backport to 2.15.3.</p> <p> </p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> [4508205.470593] LustreError: 185433:0:(service.c:1330:ptlrpc_at_remove_timed()) ASSERTION( !list_empty(&amp;req-&gt;rq_srv.sr_timed_list) ) failed:  [4508205.483191] LustreError: 185433:0:(service.c:1330:ptlrpc_at_remove_timed()) LBUG [4508205.491175] Kernel panic - not syncing: LBUG [4508205.495642] CPU: 33 PID: 185433 Comm: ldlm_cn07_020 Kdump: loaded Tainted: G           OE    --------- -  - 4.18.0-477.10.1.el8_lustre.x86_64 #1 [4508205.508843] Hardware name: HPE ProLiant DL380 Gen10/ProLiant DL380 Gen10, BIOS U30 04/20/2023 [4508205.517587] Call Trace: [4508205.520219]  dump_stack+0x41/0x60 [4508205.523726]  panic+0xe7/0x2ac [4508205.526884]  ? ret_from_fork+0x1f/0x40 [4508205.530828]  lbug_with_loc.cold.8+0x18/0x18 [libcfs] [4508205.536004]  ptlrpc_at_remove_timed+0xc7/0xd0 [ptlrpc] [4508205.541421]  ptlrpc_server_drop_request+0x11b/0x750 [ptlrpc] [4508205.547361]  ? _raw_spin_lock+0x1e/0x30 [4508205.551391]  ptlrpc_server_handle_req_in+0x3c1/0x8d0 [ptlrpc] [4508205.557419]  ptlrpc_main+0xbb9/0x1570 [ptlrpc] [4508205.562134]  ? ptlrpc_wait_event+0x590/0x590 [ptlrpc] [4508205.567460]  kthread+0x134/0x150 [4508205.570878]  ? set_kthread_struct+0x50/0x50 [4508205.575257]  ret_from_fork+0x1f/0x40 </pre> </div></div> LU-17314

ASSERTION( !list_empty(&req->rq_srv.sr_timed_list) ) failed: 

Bug Major Resolved Fixed Hongchao Zhang Mahmoud Hanafi Sun, 26 Nov 2023 01:24:35 +0000 Sat, 13 Jan 2024 00:03:22 +0000 Sat, 13 Jan 2024 00:03:12 +0000 Lustre 2.15.3 0 3 <p>Hongchao</p> <p>It looks like there is already a port of the <a href="https://jira.whamcloud.com/browse/LU-16430" title="ASSERTION( !list_empty(&amp;req-&gt;rq_srv.sr_timed_list) ) failed" class="issue-link" data-issue-key="LU-16430"><del>LU-16430</del></a> fix - <a href="https://review.whamcloud.com/#/c/fs/lustre-release/+/52338/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/#/c/fs/lustre-release/+/52338/</a> . Does this issue match that one or is it something else?</p> <p>Please advise</p> <p>Peter</p> <p>It should be the same issue as <a href="https://jira.whamcloud.com/browse/LU-16430" title="ASSERTION( !list_empty(&amp;req-&gt;rq_srv.sr_timed_list) ) failed" class="issue-link" data-issue-key="LU-16430"><del>LU-16430</del></a>, which is caused by the racy bit modification of "req.rq_obsolete"</p> <p>Thanks Hongchao. Mahmoud have you tried the effectiveness of the patch?</p> <p>Fix included in 2.15.4</p> Related LU-16430 Development Rank 1|i042rj: Rank (Obsolete) 9223372036854775807 Severity