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-2026 Lustre <p>We had an MDT kernel panic recently. We were able to get a partial core file and from that get the crash log. It managed to kernel panic in a really weird spot. I have asked them to verify that the hardware is solid as there are some messages in the mcelog file. </p> <p>In the meantime, can someone take a look at the log and see if it makes any sense?</p> LU-2026

MDT kernel panic: Kernel BUG at fs/jbd2/transaction.c:292 RIP [<ffffffff887aae03>] :jbd2:jbd2_journal_start+0x3a/0xdf

Bug Minor Resolved Cannot Reproduce Lai Siyao Manish Patel Tue, 25 Sep 2012 10:50:15 +0000 Fri, 18 Jul 2014 18:01:40 +0000 Fri, 18 Jul 2014 18:01:40 +0000 Lustre 1.8.7 0 4 <p>Bobijam</p> <p>Could you please look into this one?</p> <p>Thanks</p> <p>Peter</p> <p>lock enqueue handling upon resource 1993378622/164683178 was never finished (kept on sleeping in ldlm_expired_completion_wait) and stopped accepting client's reconnection. </p> <p>Cannot tell why MDS could not finished the lock handling though (it was waiting for the lock's grant or cancellation finished before moving forward).</p> <p>the same system is also having problems with certain directories:<br/> <a href="http://jira.whamcloud.com/browse/LU-2025" class="external-link" rel="nofollow">http://jira.whamcloud.com/browse/LU-2025</a></p> <p>I'm not sure if it's related, but I thought I'd throw that out there. </p> <p>Also can you elaborate more on how that might cause an oops in the jbd2 code? What are the chances of another oops? </p> <p>Lai</p> <p>Could you please look into this one?</p> <p>Thanks</p> <p>Peter</p> <p>Releases:</p> <ul class="alternate" type="square"> <li>IEEL 2.0.0 GA; IEEL 2.0.1 RC2 in release testing</li> <li>Lustre 2.5.2 GA</li> <li>Lustre 2.6 RC2 in release testing</li> <li>Initial scoping and timeline for IEEL 2.2 underway</li> <li>Initial scoping and timeline for Lustre 2.7 completed<br/> Sustaining:</li> <li>RHEL7 client builds now routinely occurring on master. Next step is to add into routine automated testing.</li> <li>Initial scoping for adding Ubuntu Lustre clients completed.</li> <li>Sanger now happy with stability of 2.5.x clients</li> <li>ANU unhappy with stability of their DDN filesystem and have concerns about the quality of support that they have been receiving through DDN channels.</li> </ul> Development Rank 1|hzv3un: Rank (Obsolete) 4152 Severity