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-9913 Lustre <p>A variety of conf-sanity tests are failing with an LNET memory leak. </p> <p>conf-sanity test_31 fails with the following error found in the test_log:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>[13800.637071] LNetError: 14072:0:(module.c:689:libcfs_exit()) Portals memory leaked: 184 bytes mv: cannot stat '/tmp/debug': No such file or directory Memory leaks detected conf-sanity test_31: @@@@@@ FAIL: cleanup failed with rc 203 </pre> </div></div> <p>We also see conf-sanity tests 0, 35a, and 78 fail with the same memory leak error.</p> <p>These tests started failing on August 22, 2017. The logs for the first few failures are at<br/> <a href="https://testing.hpdd.intel.com/test_sets/b644f444-87ab-11e7-b4b0-5254006e85c2" class="external-link" target="_blank" rel="nofollow noopener">https://testing.hpdd.intel.com/test_sets/b644f444-87ab-11e7-b4b0-5254006e85c2</a><br/> <a href="https://testing.hpdd.intel.com/test_sets/17c3eaf0-87c9-11e7-b3ca-5254006e85c2" class="external-link" target="_blank" rel="nofollow noopener">https://testing.hpdd.intel.com/test_sets/17c3eaf0-87c9-11e7-b3ca-5254006e85c2</a><br/> <a href="https://testing.hpdd.intel.com/test_sets/7c038e52-87ca-11e7-b4b0-5254006e85c2" class="external-link" target="_blank" rel="nofollow noopener">https://testing.hpdd.intel.com/test_sets/7c038e52-87ca-11e7-b4b0-5254006e85c2</a></p> LU-9913

conf-sanity tests 31 and 35a fail with “LNetError: 8653:0:(module.c:689:libcfs_exit()) Portals memory leaked: 184 bytes”

Bug Critical Resolved Fixed Amir Shehata James Nunez Thu, 24 Aug 2017 19:43:11 +0000 Fri, 25 Aug 2017 21:53:12 +0000 Fri, 25 Aug 2017 21:53:12 +0000 Lustre 2.11.0 Lustre 2.11.0 0 5 <p>John L. Hammond (john.hammond@intel.com) uploaded a new patch: <a href="https://review.whamcloud.com/28695" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/28695</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-9913" title="conf-sanity tests 31 and 35a fail with “LNetError: 8653:0:(module.c:689:libcfs_exit()) Portals memory leaked: 184 bytes”" class="issue-link" data-issue-key="LU-9913"><del>LU-9913</del></a> lnet: balance references in lnet_discover_peer_locked()<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 966e33c077f504b32df3687b103173f6eb2fb35f</p> <p>Copied over from <a href="https://jira.whamcloud.com/browse/LU-9909" title="memory leak in lnet_discover()" class="issue-link" data-issue-key="LU-9909"><del>LU-9909</del></a>. </p> <p>I bisected this locally by running conf-sanity 35a. This was introduced by commit 0f1aaad4c1b4447ee5097b8bb79a49d09eaa23c2 <a href="https://review.whamcloud.com/25789" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/25789</a> <a href="https://jira.whamcloud.com/browse/LU-9480" title="LNet Dynamic Discovery" class="issue-link" data-issue-key="LU-9480"><del>LU-9480</del></a> lnet: implement Peer Discovery. Unfortunately leak finder doesn't work for LNet allocations. But the leak is an LNet peer.</p> <p>I agree with your diagnosis.</p> <p>test_90a seems affected too: <a href="https://testing.hpdd.intel.com/test_sets/c0ce9d7c-8916-11e7-b50a-5254006e85c2" class="external-link" target="_blank" rel="nofollow noopener">https://testing.hpdd.intel.com/test_sets/c0ce9d7c-8916-11e7-b50a-5254006e85c2</a></p> <p>It would seem some test suites are not even able to launch due to this same bug: <a href="https://testing.hpdd.intel.com/test_sets/e7473514-8915-11e7-b94a-5254006e85c2" class="external-link" target="_blank" rel="nofollow noopener">https://testing.hpdd.intel.com/test_sets/e7473514-8915-11e7-b94a-5254006e85c2</a>. The same LNetError happens and fails the test suite early (e.g. <a href="https://testing.hpdd.intel.com/test_logs/ebb5656c-8915-11e7-b94a-5254006e85c2/show_text" class="external-link" target="_blank" rel="nofollow noopener">https://testing.hpdd.intel.com/test_logs/ebb5656c-8915-11e7-b94a-5254006e85c2/show_text</a>)</p> <p>Oleg Drokin (oleg.drokin@intel.com) merged in patch <a href="https://review.whamcloud.com/28695/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/28695/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-9913" title="conf-sanity tests 31 and 35a fail with “LNetError: 8653:0:(module.c:689:libcfs_exit()) Portals memory leaked: 184 bytes”" class="issue-link" data-issue-key="LU-9913"><del>LU-9913</del></a> lnet: balance references in lnet_discover_peer_locked()<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 1c45d9051764e0637ba90b3db06ba8fa37722916</p> <p>Landed for 2,11</p> Development Rank 1|hzziz3: Rank (Obsolete) 9223372036854775807 Severity