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-9884 Lustre <p>In recent incidents (<a href="https://jira.whamcloud.com/browse/LU-9410" title="on-disk bitmap corrupted" class="issue-link" data-issue-key="LU-9410"><del>LU-9410</del></a>) we found our lustre 2.7.3 servers on CentOS 6.8 missed one ldiskfs kernel patch; "ext4-corrupted-inode-block-bitmaps-handling-patches.patch".</p> <p>So, I compared the ldiskfs-2.6-rhel6.7.series with ldiskfs-2.6-rhel6.8.series. Well in addition to the one above, there are two more ldiskfs kernel patches landed to 6.7 did not make to 6.8:<br/> rhel6.4/ext4-fix-mbgroups-access.patch<br/> rhel6.3/ext4-fix-ext4_mb_add_n_trim.patch</p> <p>Please advise if I need these two patches...<br/> Lustre-2.9.0 running on rhel6.8 would also miss these three patches.</p> lustre servers in rhel/centos 6.8. LU-9884

lustre servers running rhel6.8 miss ldiskfs kernel patches

Bug Major Resolved Fixed Yang Sheng Jay Lan Tue, 15 Aug 2017 23:17:04 +0000 Wed, 16 Aug 2017 19:13:31 +0000 Wed, 16 Aug 2017 19:13:31 +0000 Lustre 2.7.0 Lustre 2.9.0 0 3 <p>Yang Sheng</p> <p>Can you please advise as to whether the referenced patches are needed for RHEL 6.8?</p> <p>Jay</p> <p>RHEL 6.x servers are not officially support on Lustre 2.9</p> <p>Thanks</p> <p>Peter</p> <p>Thank you Peter.<br/> So, forget about 2.9.0. Our planning server version is 2.10.0 running CentOS 7.3.</p> <p>Hi, Jay,</p> <p>Looks like "ext4-corrupted-inode-block-bitmaps-handling-patches.patch" has been landed to rhel6.8. <br/> rhel6.8 has back-ported this change from upstream. So ext4-fix-mbgroups-access.patch needn't anymore.<br/> Also for ext4-fix-ext4_mb_add_n_trim.patch, rhel6.8 has fixed this problem in other approach. So we remove it from rhel6.8 series.</p> <p>Thanks,<br/> YangSheng</p> <p>Hi Yang,</p> <p>Thanks for your investigation!</p> <p>I confirmed that the rhel6.8 codes where affected by both ext4-fix-mbgroups-access.patch and ext4-fix-ext4_mb_add_n_trim.patch were implemented differently, so the patches are either no longer needed or no longer appliable.</p> <p>But for the record, ext4-corrupted-inode-block-bitmaps-handling-patches.patch is not in the rhel 6.8 kernel code nor in the b2_7_fe ldiskfs/kernel_patches/series/ldiskfs-2.6-rhel6.8.series. I added the patch to ldiskfs-2.6-rhel6.8.series for NASA only.</p> <p>You addressed my question wrt that two patches. Thanks, and please close the ticket.</p> <p>Thanks Jay!</p> Development Rank 1|hzzijr: Rank (Obsolete) 9223372036854775807 Severity