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-15244 Lustre <p>This issue was created by maloo for jianyu &lt;yujian@whamcloud.com&gt;</p> <p>This issue relates to the following test suite run: <a href="https://testing.whamcloud.com/test_sets/ecec4ec7-16ee-4a58-a971-711126b77faf" class="external-link" target="_blank" rel="nofollow noopener">https://testing.whamcloud.com/test_sets/ecec4ec7-16ee-4a58-a971-711126b77faf</a></p> <p>test_101j failed with the following error:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>== sanity test 101j: A complete read block should be submitted when no RA ========================================================== 19:56:32 (1637092592) Disable read-ahead 16+0 records in 16+0 records out 16777216 bytes (17 MB, 16 MiB) copied, 0.0582022 s, 288 MB/s Reset readahead stats 4096+0 records in 4096+0 records out 16777216 bytes (17 MB, 16 MiB) copied, 1.02446 s, 16.4 MB/s snapshot_time 3997.129812966 secs.nsecs start_time 0.000000000 secs.nsecs elapsed_time 3997.129812966 secs.nsecs failed_to_fast_read 4100 samples [pages] sanity test_101j: @@@@@@ FAIL: expected 4096 got 4100 </pre> </div></div> <p>VVVVVVV DO NOT REMOVE LINES BELOW, Added by Maloo for auto-association VVVVVVV<br/> sanity test_101j - expected 4096 got 4100</p> RHEL 8.5 LU-15244

sanity test_101j: FAIL: expected 4096 got 4100

Bug Minor Resolved Fixed Qian Yingjin Maloo Wed, 17 Nov 2021 18:21:50 +0000 Sat, 5 Feb 2022 06:11:47 +0000 Thu, 23 Dec 2021 14:44:45 +0000 Lustre 2.15.0 Lustre 2.15.0 0 8 <p>This is a regression failure on RHEL 8.5 distro.<br/> sanity test 101j was introduced by the following patch: <a href="https://review.whamcloud.com/35217" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/35217</a> "<tt><a href="https://jira.whamcloud.com/browse/LU-12043" title="improve Lustre single thread read performances" class="issue-link" data-issue-key="LU-12043"><del>LU-12043</del></a> llite: fix to submit complete read block with ra disabled</tt>".</p> <p>Run sanity.sh test_101j locally, can not reproduce the bug...</p> <p>Hi Yingjin,<br/> Not sure if it's caused by previous sanity sub-tests. The failure can be reproduced in autotest runs. You might submit a debug patch to gather debug info from autotest run.</p> <p>Hi Jian,</p> <p>I search failure ratio in Maloo for sanity 101j, it is 0 for the recent 100 runs.<br/> Does this failure only happen on rhel8.5, or other versions of RHEL also can trigger this failure?</p> <p>Regards,<br/> Qian</p> <p>Yingjin</p> <p>Jian said </p> <p>"This is a regression failure on RHEL 8.5 distro.<br/> sanity test 101j was introduced by the following patch: <a href="https://review.whamcloud.com/35217" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/35217</a> "<a href="https://jira.whamcloud.com/browse/LU-12043" title="improve Lustre single thread read performances" class="issue-link" data-issue-key="LU-12043"><del>LU-12043</del></a> llite: fix to submit complete read block with ra disabled"."</p> <p>To me this sounds like a regression for RHEL 8.5. Given that RHEL 8.5 is only now being introduced that would explain the low incidence in recent runs. Did you use RHEL 8.5 locally when you tried to reproduce?</p> <p>Peter</p> <p>No, I used rhel8.1. Let me try rhel 8.5 locally.</p> <p>I reproduced this bug locally on CentOS 8.5.</p> <p>Will investigate the reason.</p> <p>"Yingjin Qian &lt;qian@ddn.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/45712" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/45712</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15244" title="sanity test_101j: FAIL: expected 4096 got 4100 " class="issue-link" data-issue-key="LU-15244"><del>LU-15244</del></a> llite: set ra_pages of backing_dev_info with 0<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: c1527f2b6b1cbe5b478630a967eacc4c316f24cd</p> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/45712/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/45712/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15244" title="sanity test_101j: FAIL: expected 4096 got 4100 " class="issue-link" data-issue-key="LU-15244"><del>LU-15244</del></a> llite: set ra_pages of backing_dev_info with 0<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 878561880d2aba038db95e199f82b186f22daa45</p> <p>Landed for 2.15</p> <p>"Jian Yu &lt;yujian@whamcloud.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/45969" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/45969</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15244" title="sanity test_101j: FAIL: expected 4096 got 4100 " class="issue-link" data-issue-key="LU-15244"><del>LU-15244</del></a> llite: set ra_pages of backing_dev_info with 0<br/> Project: fs/lustre-release<br/> Branch: b2_14<br/> Current Patch Set: 1<br/> Commit: 6a4e98a11884868e8d4368ce5540454378c42ef9</p> <p>"Jian Yu &lt;yujian@whamcloud.com&gt;" uploaded a new patch: <a href="https://review.whamcloud.com/45970" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/45970</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15244" title="sanity test_101j: FAIL: expected 4096 got 4100 " class="issue-link" data-issue-key="LU-15244"><del>LU-15244</del></a> llite: set ra_pages of backing_dev_info with 0<br/> Project: fs/lustre-release<br/> Branch: b2_12<br/> Current Patch Set: 1<br/> Commit: 066214fa758314a45b8af28ee076ad3607c83b9e</p> <p>"Oleg Drokin &lt;green@whamcloud.com&gt;" merged in patch <a href="https://review.whamcloud.com/45969/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/45969/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-15244" title="sanity test_101j: FAIL: expected 4096 got 4100 " class="issue-link" data-issue-key="LU-15244"><del>LU-15244</del></a> llite: set ra_pages of backing_dev_info with 0<br/> Project: fs/lustre-release<br/> Branch: b2_14<br/> Current Patch Set: <br/> Commit: 7111122431ff6ea7edcf073afd63a13293bc7a51</p> Development Rank 1|i02a7j: Rank (Obsolete) 9223372036854775807 Severity