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-12020 Lustre <p>We hit a client crash with 2.7.x series client vs 2.5.x Server.</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>Feb 22 08:18:27 nb-0369 kernel: [6707384.065071] LustreError: 32657:0:(mdc_lib.c:137:mdc_pack_name()) ASSERTION( lu_name_is_valid_2(buf, cpy_len) ) failed: Feb 22 08:18:27 nb-0369 kernel: [6707384.079827] LustreError: 32657:0:(mdc_lib.c:137:mdc_pack_name()) LBUG Feb 22 08:18:27 nb-0369 kernel: [6707384.089644] Pid: 32657, comm: gmx Feb 22 08:18:27 nb-0369 kernel: [6707384.095804] Feb 22 08:18:27 nb-0369 kernel: [6707384.095804] Call Trace: Feb 22 08:18:27 nb-0369 kernel: [6707384.105031] [&lt;ffffffffc0c1480e&gt;] libcfs_call_trace+0x4e/0x60 [libcfs] Feb 22 08:18:27 nb-0369 kernel: [6707384.114814] [&lt;ffffffffc0c14dcc&gt;] lbug_with_loc+0x4c/0xc0 [libcfs] Feb 22 08:18:27 nb-0369 kernel: [6707384.124180] [&lt;ffffffffc0e43ce2&gt;] mdc_pack_name+0xd2/0x1c0 [mdc] Feb 22 08:18:27 nb-0369 kernel: [6707384.133261] [&lt;ffffffffc0e448ab&gt;] mdc_open_pack+0x20b/0x2a0 [mdc] Feb 22 08:18:27 nb-0369 kernel: [6707384.142424] [&lt;ffffffffc0e4802e&gt;] mdc_enqueue+0x7de/0x1920 [mdc] Feb 22 08:18:27 nb-0369 kernel: [6707384.151508] [&lt;ffffffff810bdc4b&gt;] ? __wake_up_common+0x5b/0x90 Feb 22 08:18:27 nb-0369 kernel: [6707384.160820] [&lt;ffffffffc0e495bb&gt;] mdc_intent_lock+0x25b/0x510 [mdc] Feb 22 08:18:27 nb-0369 kernel: [6707384.170151] [&lt;ffffffffc084de39&gt;] ? fld_client_lookup+0x79/0x440 [fld] Feb 22 08:18:27 nb-0369 kernel: [6707384.179781] [&lt;ffffffffc11611b0&gt;] ? ll_md_blocking_ast+0x0/0x7f0 [lustre] Feb 22 08:18:27 nb-0369 kernel: [6707384.189672] [&lt;ffffffffc0cf0ef0&gt;] ? ldlm_completion_ast+0x0/0x910 [ptlrpc] Feb 22 08:18:27 nb-0369 kernel: [6707384.199603] [&lt;ffffffffc1079525&gt;] lmv_intent_lock+0x5e5/0x1bb0 [lmv] Feb 22 08:18:27 nb-0369 kernel: [6707384.208980] [&lt;ffffffffc0d2cb06&gt;] ? ptlrpc_update_next_ping+0x46/0xa0 [ptlrpc] Feb 22 08:18:27 nb-0369 kernel: [6707384.219272] [&lt;ffffffff81118892&gt;] ? from_kgid+0x12/0x20 Feb 22 08:18:27 nb-0369 kernel: [6707384.227324] [&lt;ffffffffc1161d87&gt;] ? ll_i2suppgid+0x37/0x40 [lustre] Feb 22 08:18:27 nb-0369 kernel: [6707384.236497] [&lt;ffffffffc1161dc3&gt;] ? ll_i2gids+0x33/0xb0 [lustre] Feb 22 08:18:27 nb-0369 kernel: [6707384.245302] [&lt;ffffffff81118892&gt;] ? from_kgid+0x12/0x20 Feb 22 08:18:27 nb-0369 kernel: [6707384.253236] [&lt;ffffffffc1149ba2&gt;] ? ll_prep_md_op_data+0x222/0x570 [lustre] Feb 22 08:18:27 nb-0369 kernel: [6707384.263088] [&lt;ffffffffc11611b0&gt;] ? ll_md_blocking_ast+0x0/0x7f0 [lustre] Feb 22 08:18:27 nb-0369 kernel: [6707384.272721] [&lt;ffffffffc112d47e&gt;] ll_intent_file_open.isra.49+0x16e/0xfb0 [lustre] Feb 22 08:18:27 nb-0369 kernel: [6707384.283178] [&lt;ffffffff811e4092&gt;] ? kmem_cache_alloc+0x1c2/0x1f0 Feb 22 08:18:27 nb-0369 kernel: [6707384.291865] [&lt;ffffffffc112e523&gt;] ll_file_open+0x263/0xea0 [lustre] Feb 22 08:18:27 nb-0369 kernel: [6707384.300814] [&lt;ffffffff81202f8a&gt;] do_dentry_open+0x1aa/0x2e0 Feb 22 08:18:27 nb-0369 kernel: [6707384.309110] [&lt;ffffffff812b7802&gt;] ? security_inode_permission+0x22/0x30 Feb 22 08:18:27 nb-0369 kernel: [6707384.318479] [&lt;ffffffffc112e2c0&gt;] ? ll_file_open+0x0/0xea0 [lustre] Feb 22 08:18:27 nb-0369 kernel: [6707384.327407] [&lt;ffffffff8120315a&gt;] vfs_open+0x5a/0xb0 Feb 22 08:18:27 nb-0369 kernel: [6707384.334815] [&lt;ffffffff81210fc8&gt;] ? may_open+0x68/0x110 Feb 22 08:18:27 nb-0369 kernel: [6707384.342485] [&lt;ffffffff812144bd&gt;] do_last+0x1ed/0x12c0 </pre> </div></div> <p>The problem is we are trying to access dentry name directly<br/> and pass it down without holding @d_lock.</p> LU-12020

LustreError: 32657:0:(mdc_lib.c:137:mdc_pack_name()) ASSERTION( lu_name_is_valid_2(buf, cpy_len) ) failed:

Bug Minor Resolved Fixed Wang Shilong Wang Shilong Tue, 26 Feb 2019 15:09:46 +0000 Mon, 8 Apr 2019 13:32:30 +0000 Sun, 3 Mar 2019 14:58:02 +0000 Lustre 2.13.0 Lustre 2.12.1 0 4 <p>Wang Shilong (wshilong@ddn.com) uploaded a new patch: <a href="https://review.whamcloud.com/34330" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/34330</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12020" title="LustreError: 32657:0:(mdc_lib.c:137:mdc_pack_name()) ASSERTION( lu_name_is_valid_2(buf, cpy_len) ) failed:" class="issue-link" data-issue-key="LU-12020"><del>LU-12020</del></a> llite: make sure name pack atomic<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: dd49b2fd3794a35bf83f9338a24ce9b34d2892ae</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/34330/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/34330/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12020" title="LustreError: 32657:0:(mdc_lib.c:137:mdc_pack_name()) ASSERTION( lu_name_is_valid_2(buf, cpy_len) ) failed:" class="issue-link" data-issue-key="LU-12020"><del>LU-12020</del></a> llite: make sure name pack atomic<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: f575b6551b2b8690894baeab95d6fe35e57e9418</p> <p>Landed for 2.13</p> <p>Minh Diep (mdiep@whamcloud.com) uploaded a new patch: <a href="https://review.whamcloud.com/34465" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/34465</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12020" title="LustreError: 32657:0:(mdc_lib.c:137:mdc_pack_name()) ASSERTION( lu_name_is_valid_2(buf, cpy_len) ) failed:" class="issue-link" data-issue-key="LU-12020"><del>LU-12020</del></a> llite: make sure name pack atomic<br/> Project: fs/lustre-release<br/> Branch: b2_12<br/> Current Patch Set: 1<br/> Commit: 09ec014684d6edb081c0d2c973be2cd69e307372</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/34465/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/34465/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-12020" title="LustreError: 32657:0:(mdc_lib.c:137:mdc_pack_name()) ASSERTION( lu_name_is_valid_2(buf, cpy_len) ) failed:" class="issue-link" data-issue-key="LU-12020"><del>LU-12020</del></a> llite: make sure name pack atomic<br/> Project: fs/lustre-release<br/> Branch: b2_12<br/> Current Patch Set: <br/> Commit: 3921cf2544d8fadd98995ae63ec69837ef4d4b20</p> Related LU-12169 Development Rank 1|i00cbj: Rank (Obsolete) 9223372036854775807 Severity