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-7075 Lustre <p>The console message also includes some debug information I added.</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>Lustre: lustre-MDT0000: trigger OI scrub by RPC for [0x200000405:0xcc9:0x0], rc = 0 [2] LustreError: 7795:0:(osd_handler.c:460:osd_check_lma()) lma fid [0x200000405:0xed7:0x0] obj fid [0x200000405:0xcc9:0x0] LustreError: 60792:0:(osd_handler.c:642:osd_fid_lookup()) trigger scrub with show -78 Lustre: lustre-MDT0000-o: trigger OI scrub by RPC for [0x200000405:0xcc9:0x0], rc = 0 [1] incoming 6 LustreError: 60792:0:(osd_handler.c:591:osd_fid_lookup()) LBUG Pid: 60792, comm: mdt01_022 Call Trace: [&lt;ffffffffa05cf875&gt;] libcfs_debug_dumpstack+0x55/0x80 [libcfs] [&lt;ffffffffa05cfe77&gt;] lbug_with_loc+0x47/0xb0 [libcfs] [&lt;ffffffffa0f3c4a6&gt;] osd_object_init+0x1416/0x1420 [osd_ldiskfs] [&lt;ffffffffa0717e5e&gt;] ? dt_object_init+0xe/0x10 [obdclass] [&lt;ffffffffa0715848&gt;] lu_object_alloc+0xd8/0x320 [obdclass] [&lt;ffffffffa0716c31&gt;] lu_object_find_try+0x151/0x260 [obdclass] [&lt;ffffffffa0716df1&gt;] lu_object_find_at+0xb1/0xe0 [obdclass] [&lt;ffffffffa0b004a5&gt;] ? lod_index_lookup+0x25/0x30 [lod] [&lt;ffffffffa101fc0c&gt;] ? __mdd_lookup+0x28c/0x450 [mdd] [&lt;ffffffffa0716e36&gt;] lu_object_find+0x16/0x20 [obdclass] [&lt;ffffffffa10847f6&gt;] mdt_object_find+0x56/0x170 [mdt] [&lt;ffffffffa1098a77&gt;] mdt_getattr_name_lock+0xf87/0x1910 [mdt] [&lt;ffffffffa109d009&gt;] ? old_init_ucred+0x1b9/0x390 [mdt] [&lt;ffffffffa1099922&gt;] mdt_intent_getattr+0x292/0x470 [mdt] [&lt;ffffffffa108b224&gt;] mdt_intent_policy+0x494/0xc40 [mdt] [&lt;ffffffffa08f0267&gt;] ldlm_lock_enqueue+0x127/0x8e0 [ptlrpc] [&lt;ffffffffa091cfa7&gt;] ldlm_handle_enqueue0+0x807/0x15b0 [ptlrpc] [&lt;ffffffffa0994e41&gt;] ? tgt_lookup_reply+0x31/0x190 [ptlrpc] [&lt;ffffffffa09a7b11&gt;] tgt_enqueue+0x61/0x230 [ptlrpc] [&lt;ffffffffa09a88ec&gt;] tgt_request_handle+0xa4c/0x1290 [ptlrpc] [&lt;ffffffffa09505b1&gt;] ptlrpc_main+0xe41/0x1910 [ptlrpc] [&lt;ffffffffa094f770&gt;] ? ptlrpc_main+0x0/0x1910 [ptlrpc] [&lt;ffffffff8109e66e&gt;] kthread+0x9e/0xc0 [&lt;ffffffff8100c20a&gt;] child_rip+0xa/0x20 [&lt;ffffffff8109e5d0&gt;] ? kthread+0x0/0xc0 [&lt;ffffffff8100c200&gt;] ? child_rip+0x0/0x20 </pre> </div></div> LU-7075

trigger scrub when running racer + migration

Bug Major Resolved Cannot Reproduce Di Wang Di Wang Tue, 1 Sep 2015 07:20:52 +0000 Thu, 23 Mar 2017 22:37:47 +0000 Thu, 23 Mar 2017 22:37:47 +0000 Lustre 2.8.0 0 6 <p>Hmm, after I disable the OIC cache (OSD ID cache), this problem will go away. So it might be related with OIC cache.</p> <p>Di, is there another bug that is fixing the OSD cache problem?</p> <p>Andreas: No, there are no other bugs. I will discuss with Fan Yong to see if this OIC bug or migration problem.</p> <p>Is this ticket a duplicate of <a href="https://jira.whamcloud.com/browse/LU-6895" title="sanity-lfsck test 4 hung: bad entry in directory: rec_len is smaller than minimal - inode=3925999616" class="issue-link" data-issue-key="LU-6895"><del>LU-6895</del></a>?</p> <p>No, it should not be duplicate of <a href="https://jira.whamcloud.com/browse/LU-6895" title="sanity-lfsck test 4 hung: bad entry in directory: rec_len is smaller than minimal - inode=3925999616" class="issue-link" data-issue-key="LU-6895"><del>LU-6895</del></a>, because LFSCK is not running when I run racer. According to my debug, it is caused by two OI entry who points to the same inode, i.e. two FIDs both point to the same inode. I suspect this is caused by OI cache somehow(See previous comment). Discussed with Fanyong, but we do not have a clue. Btw: this seems more difficult to reproduce in my recent run, maybe 2-3 out of 10 (racer + migration).</p> <p>This does not happen for very long time, let's close it for now.</p> Related Development Rank 1|hzxlxz: Rank (Obsolete) 9223372036854775807 Severity