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-15125 Lustre <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>PID: 1626765 TASK: ffff89a7a1ccc740 CPU: 1 COMMAND: "kiblnd_connd" #0 [ffffa395c6a3bbe0] machine_kexec at ffffffffb346156e #1 [ffffa395c6a3bc38] __crash_kexec at ffffffffb358f94d #2 [ffffa395c6a3bd00] crash_kexec at ffffffffb359083d #3 [ffffa395c6a3bd18] oops_end at ffffffffb342434d #4 [ffffa395c6a3bd38] do_trap at ffffffffb3420b13 #5 [ffffa395c6a3bd80] do_invalid_op at ffffffffb3421476 #6 [ffffa395c6a3bda0] invalid_op at ffffffffb3e00d64 [exception RIP: __list_del_entry_valid.cold.1+52] RIP: ffffffffb38913c8 RSP: ffffa395c6a3be58 RFLAGS: 00010046 RAX: 0000000000000054 RBX: 0000000000000000 RCX: 0000000000000007 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff89a7bec567c0 RBP: 0000000000000202 R8: 0000000000000000 R9: 0000000000aaaaaa R10: 0000000000000000 R11: 0000000000000001 R12: 000000006165a0f9 R13: 0000000000000001 R14: dead000000000200 R15: ffff89a7a1e82418 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 #7 [ffffa395c6a3be50] __list_del_entry_valid.cold.1 at ffffffffb38913c8 #8 [ffffa395c6a3be58] kiblnd_connd at ffffffffc170305f [ko2iblnd] #9 [ffffa395c6a3bf10] kthread at ffffffffb35043a6 #10 [ffffa395c6a3bf50] ret_from_fork at ffffffffb3e0023f </pre> </div></div> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>[root@snx11922n000 ~]# pdsh -g lustre 'lctl get_param version' | dshbak -c ---------------- snx11922n[002-005] ---------------- version=2.14.55_10_g620dd1b [root@snx11922n000 ~]# </pre> </div></div> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>620dd1bf6d (es/dev/wc/testing-m5) LU-14437 gnilnd: Use NSEC_PER_USEC to convert nsec to usec 6bcc0798a4 LU-14402 osd-ldiskfs: disable pagecache bypass feature 9e6d2fa865 LU-14402 osd-ldiskfs: Page cache pages dirtied in writeback f248dcbdda LUS-9546 build: Cray obs build support for master b8e2e1c76d LU-14391 lnet: add config file support 6be8ea0e7b LU-14392 gnilnd: re-enable large i/o buffers 2de9d6bb32 LU-14409 ldiskfs: Add support for SUSE 5.3.18-24.46.1 966362f836 LU-15074 build: Use strlcpy if strscpy is not available f8a7abd63f LU-13906 build: consistent use of %{name} 1a409a3e6a LU-14711 osc: Do not attempt sending empty pages 09e2e43241 (tag: v2_14_55, tag: 2.14.55) New tag 2.14.55 </pre> </div></div> LU-15125

kiblnd_connd kernel BUG at lib/list_debug.c:53!

Bug Blocker Resolved Fixed Chris Horn Chris Horn Mon, 18 Oct 2021 19:14:24 +0000 Wed, 17 Aug 2022 18:30:02 +0000 Wed, 3 Nov 2021 03:29:41 +0000 Lustre 2.15.0 0 2 <p>I suspect <a href="https://review.whamcloud.com/#/c/38845/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/#/c/38845/</a> is responsible since there is no other recent change to kiblnd_connd().</p> <p>Ah, the issue was actually with <a href="https://review.whamcloud.com/#/c/43419/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/#/c/43419/</a></p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>@@ -3571,9 +3571,10 @@ kiblnd_connd (void *arg) spin_lock_irqsave(lock, flags); } - if (!list_empty(&amp;kiblnd_data.kib_connd_waits)) { - conn = list_entry(kiblnd_data.kib_connd_waits.next, - struct kib_conn, ibc_list); + conn = list_first_entry_or_null(&amp;kiblnd_data.kib_connd_waits, + struct kib_conn, + ibc_sched_list); + if (conn) { list_del(&amp;conn-&gt;ibc_list); spin_unlock_irqrestore(lock, flags); </pre> </div></div> <p>Wrong list_head field used in the list_first_entry_or_null() macro</p> <p>"Chris Horn &lt;chris.horn@hpe.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/45316" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/45316</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15125" title="kiblnd_connd kernel BUG at lib/list_debug.c:53!" class="issue-link" data-issue-key="LU-15125"><del>LU-15125</del></a> o2iblnd: wrong list used for kib_connd_waits<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: c3bbdf8477cd89cdaed09e3b8b7d5db7266adc17</p> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/45316/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/45316/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15125" title="kiblnd_connd kernel BUG at lib/list_debug.c:53!" class="issue-link" data-issue-key="LU-15125"><del>LU-15125</del></a> o2iblnd: wrong list used for kib_connd_waits<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: f6f1e395cd26369d7441a70eb5d598ea64f1589a</p> <p>Landed for 2.15</p> Development Rank 1|i027of: Rank (Obsolete) 9223372036854775807 Severity