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-5673 Lustre <p>There is race between between starting an target (MDT, OST .. both may have it bug) and MGC thread to reenqueue lock.</p> <p>Target called MGC to connect to MGS to take an config but due to network issue/s config request fails. Because of this target have rollback to the reading config from disk and start re-enqueue thread to take config from network. Target finished read config from a disk and disconnected disk from MGC. But re-euqueue thread still using it. This resulted in a case where thread have an access to the freed structure and panic.</p> <p>This issue is not present in master code. But test which can created this problem is missing. So adding the test.</p> LU-5673

Adding test for race between start of target and MGC thread to reenqueue lock

Bug Minor Resolved Cannot Reproduce Bob Glossman Rahul Deshmukh patch Fri, 26 Sep 2014 11:10:49 +0000 Fri, 12 Mar 2021 00:32:53 +0000 Fri, 12 Mar 2021 00:32:53 +0000 Lustre 2.7.0 0 5 <p>Code Link : <a href="http://review.whamcloud.com/#/c/12073/" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/#/c/12073/</a> . Please review.</p> <p>WIll monitor</p> <p>I propose to close this ticket as not reproducible.<br/> Looking at <a href="http://review.whamcloud.com/#/c/12073/" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/#/c/12073/</a> I don't see that provided test reproduced reported panic.<br/> We don't have similar test in Cray/HPe and are not going to proceed this work -reported issue is not seen for last 4 years neither in Cray nor in upstream master.<br/> Rahul is inactive and I can't abandon 12073. Can someone abandon this patch and close this ticket?</p> <p>Thanks,<br/> Sergey</p> Development Rank 1|hzwx7b: Rank (Obsolete) 15890 Severity