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-4776 Lustre <p>This issue was created by maloo for Dmitry Eremin &lt;dmitry.eremin@intel.com&gt;</p> <p>This issue relates to the following test suite run: <a href="http://maloo.whamcloud.com/test_sets/6cce6894-ae66-11e3-9c2b-52540035b04c" class="external-link" target="_blank" rel="nofollow noopener">http://maloo.whamcloud.com/test_sets/6cce6894-ae66-11e3-9c2b-52540035b04c</a>.</p> <p>17:25:05:LustreError: 18368:0:(osd_handler.c:5496:osd_key_exit()) ASSERTION( info-&gt;oti_r_locks == 0 ) failed: <br/> 17:25:05:LustreError: 18368:0:(osd_handler.c:5496:osd_key_exit()) LBUG<br/> 17:25:05:Pid: 18368, comm: mdt00_000<br/> 17:25:05:<br/> 17:25:05:Call Trace:<br/> 17:25:05: <span class="error">&#91;&lt;ffffffffa048e895&gt;&#93;</span> libcfs_debug_dumpstack+0x55/0x80 <span class="error">&#91;libcfs&#93;</span><br/> 17:25:05: <span class="error">&#91;&lt;ffffffffa048ee97&gt;&#93;</span> lbug_with_loc+0x47/0xb0 <span class="error">&#91;libcfs&#93;</span><br/> 17:25:05: <span class="error">&#91;&lt;ffffffffa0d276cb&gt;&#93;</span> osd_key_exit+0x5b/0xc0 <span class="error">&#91;osd_ldiskfs&#93;</span><br/> 17:25:05: <span class="error">&#91;&lt;ffffffffa05f7798&gt;&#93;</span> lu_context_exit+0x58/0xa0 <span class="error">&#91;obdclass&#93;</span><br/> 17:25:05: <span class="error">&#91;&lt;ffffffffa0842584&gt;&#93;</span> ptlrpc_main+0x904/0x1980 <span class="error">&#91;ptlrpc&#93;</span><br/> 17:25:05: <span class="error">&#91;&lt;ffffffffa0841c80&gt;&#93;</span> ? ptlrpc_main+0x0/0x1980 <span class="error">&#91;ptlrpc&#93;</span><br/> 17:25:05: <span class="error">&#91;&lt;ffffffff8109aee6&gt;&#93;</span> kthread+0x96/0xa0<br/> 17:25:05: <span class="error">&#91;&lt;ffffffff8100c20a&gt;&#93;</span> child_rip+0xa/0x20<br/> 17:25:05: <span class="error">&#91;&lt;ffffffff8109ae50&gt;&#93;</span> ? kthread+0x0/0xa0<br/> 17:25:05: <span class="error">&#91;&lt;ffffffff8100c200&gt;&#93;</span> ? child_rip+0x0/0x20<br/> 17:25:05:<br/> 17:25:05:Kernel panic - not syncing: LBUG<br/> 17:25:05:Pid: 18368, comm: mdt00_000 Not tainted 2.6.32-431.5.1.el6_lustre.g1131719.x86_64 #1<br/> 17:25:05:Call Trace:<br/> 17:25:05: <span class="error">&#91;&lt;ffffffff81527983&gt;&#93;</span> ? panic+0xa7/0x16f<br/> 17:25:05: <span class="error">&#91;&lt;ffffffffa048eeeb&gt;&#93;</span> ? lbug_with_loc+0x9b/0xb0 <span class="error">&#91;libcfs&#93;</span><br/> 17:25:05: <span class="error">&#91;&lt;ffffffffa0d276cb&gt;&#93;</span> ? osd_key_exit+0x5b/0xc0 <span class="error">&#91;osd_ldiskfs&#93;</span><br/> 17:25:05: <span class="error">&#91;&lt;ffffffffa05f7798&gt;&#93;</span> ? lu_context_exit+0x58/0xa0 <span class="error">&#91;obdclass&#93;</span><br/> 17:25:05: <span class="error">&#91;&lt;ffffffffa0842584&gt;&#93;</span> ? ptlrpc_main+0x904/0x1980 <span class="error">&#91;ptlrpc&#93;</span><br/> 17:25:05: <span class="error">&#91;&lt;ffffffffa0841c80&gt;&#93;</span> ? ptlrpc_main+0x0/0x1980 <span class="error">&#91;ptlrpc&#93;</span><br/> 17:25:05: <span class="error">&#91;&lt;ffffffff8109aee6&gt;&#93;</span> ? kthread+0x96/0xa0<br/> 17:25:05: <span class="error">&#91;&lt;ffffffff8100c20a&gt;&#93;</span> ? child_rip+0xa/0x20<br/> 17:25:05: <span class="error">&#91;&lt;ffffffff8109ae50&gt;&#93;</span> ? kthread+0x0/0xa0<br/> 17:25:05: <span class="error">&#91;&lt;ffffffff8100c200&gt;&#93;</span> ? child_rip+0x0/0x20</p> LU-4776

suite sanity-scrub: ASSERTION( info->oti_r_locks == 0 )

Bug Blocker Open Unresolved WC Triage Maloo Tue, 18 Mar 2014 08:37:50 +0000 Thu, 14 May 2020 12:29:19 +0000 Lustre 2.7.0 0 10 <p>Fan Yong and Di, <br/> Could you have a look and comment on this one?<br/> Thank you!</p> <p>Firstly, the ASSERT() indicates that someone called dt_read_lock() but missed to call dt_read_unlock().</p> <p>Secondly, the ASSERT() happened inside ptlrpcd thread stack, generally, the ptlrpcd thread should not call dt_</p> {read,write} <p>_lock() to avoid blocked.</p> <p>Only with this log, it is not easy to locate where the issue is. Either more logs or read related code and check each dt_read_lock() one by one.</p> <p>Another instance review-dne-part-1 conf-sanity/22 on master:<br/> <a href="https://maloo.whamcloud.com/test_sets/96808c42-e838-11e3-9bed-52540035b04c" class="external-link" target="_blank" rel="nofollow noopener">https://maloo.whamcloud.com/test_sets/96808c42-e838-11e3-9bed-52540035b04c</a></p> <p>The failure occurred while testing patch <a href="http://review.whamcloud.com/11213" class="external-link" target="_blank" rel="nofollow noopener">http://review.whamcloud.com/11213</a> on master branch with DNE configuration:<br/> <a href="https://testing.hpdd.intel.com/test_sets/fded45b8-5882-11e4-b081-5254006e85c2" class="external-link" target="_blank" rel="nofollow noopener">https://testing.hpdd.intel.com/test_sets/fded45b8-5882-11e4-b081-5254006e85c2</a></p> <p>Another instance:<br/> <a href="https://testing.whamcloud.com/test_sessions/a775bc96-19e5-4cfa-a841-4acd8d9d6b6d" class="external-link" target="_blank" rel="nofollow noopener">https://testing.whamcloud.com/test_sessions/a775bc96-19e5-4cfa-a841-4acd8d9d6b6d</a></p> Related LU-5264 Development Rank 1|hzwhrb: Rank (Obsolete) 13141 Severity