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-1122 Lustre <p>Before upgrade,the system configuration is one MDS(1.8.7-RHEL5), two OSS(1.8.7-RHEL5 and 2.1.0-RHEL6) and two clients(1.8.7-RHEL5 and 1.8.7-RHEL6), then upgrade servers and clients to 2.1.55-RHEL6, check the system, works fine. Then do the downgrade, MDS downgrade to 2.1.0-RHEL6, OSS downgrade to 1.8.7-RHEL5 and 2.1.0-RHEL6, clients downgrade to 2.1.0-RHEL5 and 2.1.0-RHEL6</p> <p>Got LBUG when checking the dir/files in the OST pool. MDS console log please see the attached.</p> LU-1122

MDS got LBUG after upgrade from 1.8.7-RHEL5 to 2.1.55-RHEL6 and then downgrade to 2.1.0-RHEL6

Bug Blocker Resolved Fixed Zhenyu Xu Sarah Liu Mon, 20 Feb 2012 02:39:30 +0000 Mon, 20 Feb 2012 19:52:47 +0000 Mon, 20 Feb 2012 19:52:47 +0000 Lustre 2.2.0 Lustre 2.2.0 0 1 <p>Bobi</p> <p>Could you please look at this one?</p> <p>Thanks</p> <p>Peter</p> <blockquote> <p>Lustre: DEBUG MARKER: ===== Check the directories/files in the OST pool<br/> LustreError: 8113:0:(mdd_object.c:94:mdd_la_get()) ASSERTION(mdd_object_exists(obj)) failed: FID is <span class="error">&#91;0x200000bd0:0x1:0x0&#93;</span><br/> LustreError: 8113:0:(mdd_object.c:94:mdd_la_get()) LBUG</p></blockquote> <p>It's 2.1.0 known bug, and needs <a href="http://review.whamcloud.com/#change,1928" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/#change,1928</a> + <a href="http://review.whamcloud.com/#change,2148" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/#change,2148</a> to fix it.</p> Development Rank 1|hzvha7: Rank (Obsolete) 6449 Severity