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-10398 Lustre <p>osd_ldiskfs_write_rec() is used on server for various local writes, most often for llog. It does write by pages so if chunk of data is crossing page boundary then first part can be written but second can fail, e.g. due to -ENOSPC. This cause partially written data which is corruption in most cases, especially with llog.</p> LU-10398

osd_ldiskfs_write_rec() can do partial write

Bug Major Resolved Not a Bug Mikhail Pershin Mikhail Pershin Fri, 15 Dec 2017 17:36:13 +0000 Tue, 30 Mar 2021 20:10:59 +0000 Wed, 19 Dec 2018 20:48:50 +0000 0 2 <p>Mike Pershin (mike.pershin@intel.com) uploaded a new patch: <a href="https://review.whamcloud.com/30565" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/30565</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-10398" title="osd_ldiskfs_write_rec() can do partial write" class="issue-link" data-issue-key="LU-10398"><del>LU-10398</del></a> osd: undo partially written data<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: db91ea51513bcbb94bc60a494394e30f4028cc4c</p> <p>I've just added reproducer and quick solution. This is to be discussed.</p> <p>After discussion with Alex it was decided that llog should resolve this but not OSD. Such situation is possible in llog only and it is hard to decide about proper solution in OSD itself.</p> Development Rank 1|hzzpk7: Rank (Obsolete) 9223372036854775807 Severity