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-13852 Lustre <p>In ll_lookup_it(IT_OPEN) is called by PCC, it always allocates FID on MDT0 for this new file, but if parent directory is striped or is remote, it will cause this create RPC sent to the MDT where its name hash points to, but not where its FID belongs to, and finally it will trigger assertion in osp_md_create:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>[22573.885685] LustreError: 29626:0:(osp_md_object.c:167:osp_md_create()) ASSERTION( attr-&gt;la_valid &amp; LA_TYPE ) failed: [22573.886840] LustreError: 29626:0:(osp_md_object.c:167:osp_md_create()) LBUG [22573.887513] Pid: 29626, comm: mdt00_000 3.10.0-1127.8.2.el7_lustre.x86_64 #1 SMP Wed Jul 22 17:22:45 UTC 2020 [22573.888637] Call Trace: [22573.889029] [] libcfs_call_trace+0x8c/0xc0 [libcfs] [22573.890130] [] lbug_with_loc+0x4c/0xa0 [libcfs] [22573.891078] [] osp_md_create+0x442/0x490 [osp] [22573.892202] [] lod_sub_create+0x1f5/0x480 [lod] [22573.893094] [] lod_create+0x54/0x2d0 [lod] [22573.893698] [] mdd_create_object_internal+0xae/0x2f0 [mdd] [22573.894630] [] mdd_create_object+0x83/0x940 [mdd] [22573.895450] [] mdd_create+0xf3f/0x1690 [mdd] [22573.896197] [] mdt_reint_open+0x2413/0x3270 [mdt] [22573.897188] [] mdt_reint_rec+0x83/0x210 [mdt] [22573.897812] [] mdt_reint_internal+0x720/0xaf0 [mdt] [22573.898654] [] mdt_intent_open+0x82/0x3a0 [mdt] [22573.899522] [] mdt_intent_opc+0x1ba/0xb40 [mdt] [22573.900292] [] mdt_intent_policy+0x1a4/0x360 [mdt] [22573.901200] [] ldlm_lock_enqueue+0x3cb/0xad0 [ptlrpc] [22573.902216] [] ldlm_handle_enqueue0+0xa56/0x1610 [ptlrpc] [22573.903120] [] tgt_enqueue+0x62/0x210 [ptlrpc] [22573.903966] [] tgt_request_handle+0x96a/0x1640 [ptlrpc] [22573.904718] [] ptlrpc_server_handle_request+0x256/0xb10 [ptlrpc] [22573.905691] [] ptlrpc_main+0xb3c/0x14d0 [ptlrpc] [22573.906627] [] kthread+0xd1/0xe0 [22573.907307] [] ret_from_fork_nospec_end+0x0/0x39 [22573.908266] [] 0xffffffffffffffff [22573.908991] Kernel panic - not syncing: LBUG </pre> </div></div> LU-13852

PCC lookup(IT_OPEN) shouldn't alloc FID in LLITE

Bug Minor Resolved Fixed Lai Siyao Lai Siyao Tue, 4 Aug 2020 13:25:33 +0000 Wed, 4 Aug 2021 17:25:29 +0000 Thu, 27 May 2021 19:00:29 +0000 Lustre 2.12.0 Lustre 2.15.0 0 3 <p>Lai Siyao (lai.siyao@whamcloud.com) uploaded a new patch: <a href="https://review.whamcloud.com/39568" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/39568</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13852" title="PCC lookup(IT_OPEN) shouldn&#39;t alloc FID in LLITE" class="issue-link" data-issue-key="LU-13852"><del>LU-13852</del></a> pcc: don't alloc FID in LLITE for pcc open<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 222cf854031cbb14e3a42b5646e12c44be5f7482</p> <p>We also should't LASSERT() on the MDS from something bad that the client sent... The MDS should just return an error in that case.</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/39568/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/39568/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13852" title="PCC lookup(IT_OPEN) shouldn&#39;t alloc FID in LLITE" class="issue-link" data-issue-key="LU-13852"><del>LU-13852</del></a> pcc: don't alloc FID in LLITE for pcc open<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 223728a97c397e6e6c91808dd36a2539705f00b8</p> <p>Landed for 2.15</p> Related LU-14039 Development Rank 1|i016x3: Rank (Obsolete) 9223372036854775807 Severity