Whamcloud Community JIRA https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 [LU-11276] racer: mdc_dev.c:1346:mdc_req_attr_set()) uncovered page https://jira.whamcloud.com/browse/LU-11276 Lustre <p>Saw this in master-next on Ag 12th first once, and then in the past two day many more occurences all of a sudden.</p> <p><a href="https://jira.whamcloud.com/browse/LU-10910" title="LBUG with &quot;lfs migrate -c 1 &lt;domfile&gt;&quot;" class="issue-link" data-issue-key="LU-10910"><del>LU-10910</del></a> related? Most likely DOM related.</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>[27046.472503] LustreError: 12291:0:(ldlm_resource.c:1725:ldlm_resource_dump()) --- Resource: [0x200000406:0xe97:0x0].0x0 (ffff88000cdd1c80) refcount = 4 [27046.474149] LustreError: 12291:0:(ldlm_resource.c:1728:ldlm_resource_dump()) Granted locks (in reverse order): [27046.475547] LustreError: 12291:0:(ldlm_resource.c:1731:ldlm_resource_dump()) ### ### ns: lustre-MDT0000-mdc-ffff880050df3800 lock: ffff880008d22d80/0x85f55ba2c9d6a1c8 lrc: 3/1,0 mode: CR/CR res: [0x200000406:0xe97:0x0].0x0 bits 0x8/0x0 rrc: 5 type: IBT flags: 0x0 nid: local remote: 0x85f55ba2c9d6a1cf expref: -99 pid: 12291 timeout: 0 lvb_type: 3 [27046.479190] LustreError: 12291:0:(ldlm_resource.c:1731:ldlm_resource_dump()) ### ### ns: lustre-MDT0000-mdc-ffff880050df3800 lock: ffff8800a46fad80/0x85f55ba2c9d6a040 lrc: 1/0,0 mode: PR/PR res: [0x200000406:0xe97:0x0].0x0 bits 0x20/0x0 rrc: 5 type: IBT flags: 0x0 nid: local remote: 0x85f55ba2c9d6a04e expref: -99 pid: 12291 timeout: 0 lvb_type: 0 [27046.482737] Pid: 12291, comm: dd 3.10.0-7.5-debug #2 SMP Sat Jun 2 18:41:57 EDT 2018 [27046.484162] Call Trace: [27046.484763] [&lt;ffffffffa01b77dc&gt;] libcfs_call_trace+0x8c/0xc0 [libcfs] [27046.485651] [&lt;ffffffffa01b7836&gt;] libcfs_debug_dumpstack+0x26/0x30 [libcfs] [27046.486498] [&lt;ffffffffa088781b&gt;] mdc_get_lock_handle+0xcb/0xe0 [mdc] [27046.487299] [&lt;ffffffffa0887c50&gt;] mdc_req_attr_set+0x90/0x170 [mdc] [27046.487994] [&lt;ffffffffa0379170&gt;] cl_req_attr_set+0x60/0x150 [obdclass] [27046.488818] [&lt;ffffffffa07fb4e6&gt;] osc_build_rpc+0x496/0xfe0 [osc] [27046.489621] [&lt;ffffffffa0815597&gt;] osc_io_unplug0+0xe17/0x1920 [osc] [27046.490470] [&lt;ffffffffa081a050&gt;] osc_cache_writeback_range+0xc20/0x1260 [osc] [27046.491804] [&lt;ffffffffa0884c96&gt;] mdc_io_fsync_start+0x56/0x170 [mdc] [27046.493774] [&lt;ffffffffa03793e5&gt;] cl_io_start+0x65/0x130 [obdclass] [27046.494603] [&lt;ffffffffa08accd5&gt;] lov_io_call.isra.5+0x85/0x140 [lov] [27046.495669] [&lt;ffffffffa08ace96&gt;] lov_io_start+0x56/0x150 [lov] [27046.496550] [&lt;ffffffffa03793e5&gt;] cl_io_start+0x65/0x130 [obdclass] [27046.497361] [&lt;ffffffffa037b6a1&gt;] cl_io_loop+0x131/0xb30 [obdclass] [27046.498087] [&lt;ffffffffa144e9eb&gt;] cl_sync_file_range+0x2db/0x380 [lustre] [27046.500281] [&lt;ffffffffa1494fd4&gt;] vvp_prune+0x64/0x2b0 [lustre] [27046.501184] [&lt;ffffffffa03718e5&gt;] cl_object_prune+0x55/0x110 [obdclass] [27046.503100] [&lt;ffffffffa08c1e01&gt;] lov_conf_set+0x531/0xa70 [lov] [27046.504495] [&lt;ffffffffa0371a00&gt;] cl_conf_set+0x60/0x120 [obdclass] [27046.505423] [&lt;ffffffffa1450e81&gt;] ll_layout_conf+0x81/0x410 [lustre] [27046.507428] [&lt;ffffffffa14517c5&gt;] ll_layout_refresh+0x5b5/0xa60 [lustre] [27046.508276] [&lt;ffffffffa149468f&gt;] vvp_io_init+0x35f/0x460 [lustre] [27046.509231] [&lt;ffffffffa03797e8&gt;] cl_io_init0.isra.17+0x88/0x160 [obdclass] [27046.526478] [&lt;ffffffffa0379983&gt;] cl_io_init+0x43/0x80 [obdclass] [27046.527149] [&lt;ffffffffa037a383&gt;] cl_io_rw_init+0x93/0x2a0 [obdclass] [27046.527843] [&lt;ffffffffa1447d3d&gt;] ll_file_io_generic+0x20d/0xd10 [lustre] [27046.528490] [&lt;ffffffffa1448db1&gt;] ll_file_aio_write+0x391/0x830 [lustre] [27046.529163] [&lt;ffffffffa14492f4&gt;] ll_file_write+0xa4/0x170 [lustre] [27046.529567] [&lt;ffffffff8120daad&gt;] vfs_write+0xbd/0x1e0 [27046.530010] [&lt;ffffffff8120e8cf&gt;] SyS_write+0x7f/0xf0 [27046.530450] [&lt;ffffffff817838e9&gt;] system_call_fastpath+0x16/0x1b [27046.530895] [&lt;ffffffffffffffff&gt;] 0xffffffffffffffff [27046.531358] LustreError: 12291:0:(mdc_dev.c:1346:mdc_req_attr_set()) page@ffff88000dd4ae00[2 ffff880018299718 2 1 (null)] [27046.532734] LustreError: 12291:0:(mdc_dev.c:1346:mdc_req_attr_set()) vvp-page@ffff88000dd4ae50(0:0) vm@ffffea00020884e0 1fffff0000282c 2:0 ffff88000dd4ae00 0 lru [27046.534974] LustreError: 12291:0:(mdc_dev.c:1346:mdc_req_attr_set()) lov-page@ffff88000dd4ae90, comp index: 0, gen: 2 [27046.536852] LustreError: 12291:0:(mdc_dev.c:1346:mdc_req_attr_set()) osc-page@ffff88000dd4aec8 0: 1&lt; 0x845fed 258 0 + + &gt; 2&lt; 0 0 4096 0x5 0x520 | (null) ffff88000990ac48 ffff880008e60e60 &gt; 3&lt; 1 64 0 &gt; 4&lt; 0 0 8 11886592 - | - - + - &gt; 5&lt; - - + - | 0 - | 0 - -&gt; [27046.540751] LustreError: 12291:0:(mdc_dev.c:1346:mdc_req_attr_set()) end page@ffff88000dd4ae00 [27046.542709] LustreError: 12291:0:(mdc_dev.c:1346:mdc_req_attr_set()) uncovered page! [27046.544045] LustreError: 12291:0:(mdc_dev.c:1347:mdc_req_attr_set()) LBUG [27046.544824] Pid: 12291, comm: dd 3.10.0-7.5-debug #2 SMP Sat Jun 2 18:41:57 EDT 2018 [27046.546276] Call Trace: [27046.546712] [&lt;ffffffffa01b77dc&gt;] libcfs_call_trace+0x8c/0xc0 [libcfs] [27046.547165] [&lt;ffffffffa01b788c&gt;] lbug_with_loc+0x4c/0xa0 [libcfs] [27046.547704] [&lt;ffffffffa0887d24&gt;] mdc_req_attr_set+0x164/0x170 [mdc] [27046.548206] [&lt;ffffffffa0379170&gt;] cl_req_attr_set+0x60/0x150 [obdclass] [27046.548675] [&lt;ffffffffa07fb4e6&gt;] osc_build_rpc+0x496/0xfe0 [osc] [27046.549099] [&lt;ffffffffa0815597&gt;] osc_io_unplug0+0xe17/0x1920 [osc] [27046.549834] [&lt;ffffffffa081a050&gt;] osc_cache_writeback_range+0xc20/0x1260 [osc] [27046.550585] [&lt;ffffffffa0884c96&gt;] mdc_io_fsync_start+0x56/0x170 [mdc] [27046.551013] [&lt;ffffffffa03793e5&gt;] cl_io_start+0x65/0x130 [obdclass] [27046.551433] [&lt;ffffffffa08accd5&gt;] lov_io_call.isra.5+0x85/0x140 [lov] [27046.551839] [&lt;ffffffffa08ace96&gt;] lov_io_start+0x56/0x150 [lov] [27046.552439] [&lt;ffffffffa03793e5&gt;] cl_io_start+0x65/0x130 [obdclass] [27046.553102] [&lt;ffffffffa037b6a1&gt;] cl_io_loop+0x131/0xb30 [obdclass] [27046.553823] [&lt;ffffffffa144e9eb&gt;] cl_sync_file_range+0x2db/0x380 [lustre] [27046.554653] [&lt;ffffffffa1494fd4&gt;] vvp_prune+0x64/0x2b0 [lustre] [27046.555426] [&lt;ffffffffa03718e5&gt;] cl_object_prune+0x55/0x110 [obdclass] [27046.556088] [&lt;ffffffffa08c1e01&gt;] lov_conf_set+0x531/0xa70 [lov] [27046.556528] [&lt;ffffffffa0371a00&gt;] cl_conf_set+0x60/0x120 [obdclass] [27046.556978] [&lt;ffffffffa1450e81&gt;] ll_layout_conf+0x81/0x410 [lustre] [27046.557386] [&lt;ffffffffa14517c5&gt;] ll_layout_refresh+0x5b5/0xa60 [lustre] [27046.557836] [&lt;ffffffffa149468f&gt;] vvp_io_init+0x35f/0x460 [lustre] [27046.558475] [&lt;ffffffffa03797e8&gt;] cl_io_init0.isra.17+0x88/0x160 [obdclass] [27046.559128] [&lt;ffffffffa0379983&gt;] cl_io_init+0x43/0x80 [obdclass] [27046.559655] [&lt;ffffffffa037a383&gt;] cl_io_rw_init+0x93/0x2a0 [obdclass] [27046.560233] [&lt;ffffffffa1447d3d&gt;] ll_file_io_generic+0x20d/0xd10 [lustre] [27046.560650] [&lt;ffffffffa1448db1&gt;] ll_file_aio_write+0x391/0x830 [lustre] [27046.561267] [&lt;ffffffffa14492f4&gt;] ll_file_write+0xa4/0x170 [lustre] [27046.561948] [&lt;ffffffff8120daad&gt;] vfs_write+0xbd/0x1e0 [27046.562603] [&lt;ffffffff8120e8cf&gt;] SyS_write+0x7f/0xf0 [27046.563264] [&lt;ffffffff817838e9&gt;] system_call_fastpath+0x16/0x1b [27046.563704] [&lt;ffffffffffffffff&gt;] 0xffffffffffffffff [27046.564385] Kernel panic - not syncing: LBUG </pre> </div></div> LU-11276 racer: mdc_dev.c:1346:mdc_req_attr_set()) uncovered page Bug Major Resolved Fixed Mikhail Pershin Oleg Drokin Wed, 22 Aug 2018 03:38:36 +0000 Fri, 10 Nov 2023 11:19:25 +0000 Sat, 26 Sep 2020 12:15:16 +0000 Lustre 2.12.0 Lustre 2.14.0 Lustre 2.12.6 0 9 <p>Mike Pershin (mpershin@whamcloud.com) uploaded a new patch: <a href="https://review.whamcloud.com/33125" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/33125</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-11276" title="racer: mdc_dev.c:1346:mdc_req_attr_set()) uncovered page" class="issue-link" data-issue-key="LU-11276"><del>LU-11276</del></a> ldlm: don't apply ELC to converting and DOM locks<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 8843c1fbcadb5e955a6db83dd4fd5533f706b3af</p> <p>Mike Pershin (mpershin@whamcloud.com) uploaded a new patch: <a href="https://review.whamcloud.com/33129" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/33129</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-11276" title="racer: mdc_dev.c:1346:mdc_req_attr_set()) uncovered page" class="issue-link" data-issue-key="LU-11276"><del>LU-11276</del></a> ldlm: fix lock convert bl_ast races<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: e8c8f76c60b47c085fb19bce70ffbfd02c4c2732</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/33125/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/33125/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-11276" title="racer: mdc_dev.c:1346:mdc_req_attr_set()) uncovered page" class="issue-link" data-issue-key="LU-11276"><del>LU-11276</del></a> ldlm: don't apply ELC to converting and DOM locks<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 70a01a6c9c7c81a271e76df1af7d250fe03265c1</p> <blockquote><p> Subject: <a href="https://jira.whamcloud.com/browse/LU-11276" title="racer: mdc_dev.c:1346:mdc_req_attr_set()) uncovered page" class="issue-link" data-issue-key="LU-11276"><del>LU-11276</del></a> ldlm: don't apply ELC to converting and DOM locks</p></blockquote> <p>With this patch, unlinkmany (after createmany) performance within a DoM directory drops by ~35%:</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> HEAD is now at 70a01a6... LU-11276 ldlm: don't apply ELC to converting and DOM locks total: 20000 unlinks in 52 seconds: 384.615387 unlinks/second HEAD is now at 7237248... LU-11347 osd: <span class="code-keyword">do</span> not use pagecache <span class="code-keyword">for</span> I/O total: 20000 unlinks in 34 seconds: 588.235291 unlinks/second HEAD is now at 8b9105d... LU-11199 mdt: Attempt lookup lock on open total: 20000 unlinks in 34 seconds: 588.235291 unlinks/second HEAD is now at 697e8fe... LU-11473 doc: add lfs-getsom man page total: 20000 unlinks in 34 seconds: 588.235291 unlinks/second HEAD is now at ed0c19d... LU-1095 misc: quiet console messages at startup </pre> </div></div> <p>Is there a way to improve it to keep unlinks faster?</p> <p>Andrew, I will check that, thanks for this finding.</p> <p>Thank you Mikhail!</p> <p>Mike Pershin (mpershin@whamcloud.com) uploaded a new patch: <a href="https://review.whamcloud.com/34500" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/34500</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-11276" title="racer: mdc_dev.c:1346:mdc_req_attr_set()) uncovered page" class="issue-link" data-issue-key="LU-11276"><del>LU-11276</del></a> ldlm: rework ll_md_have_lock()<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: c18088146e713f11b6a892dfd8ea31d9812f10e0</p> <p>Andrew, I've created separate ticket for problem you've reported - <a href="https://jira.whamcloud.com/browse/LU-12124" title="slower unlinks with DOM files due to disabled ELC" class="issue-link" data-issue-key="LU-12124"><del>LU-12124</del></a></p> <p>Mike Pershin (mpershin@whamcloud.com) uploaded a new patch: <a href="https://review.whamcloud.com/36466" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36466</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-11276" title="racer: mdc_dev.c:1346:mdc_req_attr_set()) uncovered page" class="issue-link" data-issue-key="LU-11276"><del>LU-11276</del></a> ldlm: fix lock convert races<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 153ffcc4edf6c0ce73663d0693e3e55cd0e8fcc6</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/36466/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/36466/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-11276" title="racer: mdc_dev.c:1346:mdc_req_attr_set()) uncovered page" class="issue-link" data-issue-key="LU-11276"><del>LU-11276</del></a> ldlm: fix lock convert races<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 6c0b676e41245c2f74bcf7f3f1ac9fcb0fd6c319</p> <p>Can this ticket be resolved for 2.14.0 with the landing of patch 36466? Is patch 34500 still needed or is it obsolete?</p> <p>yes, it can be set as resolved. Patch 34500 is just optimisation and not related to this particular issue, if I will refresh it, I'll create separate ticket for it</p> <p>Mike Pershin (mpershin@whamcloud.com) uploaded a new patch: <a href="https://review.whamcloud.com/39854" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/39854</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-11276" title="racer: mdc_dev.c:1346:mdc_req_attr_set()) uncovered page" class="issue-link" data-issue-key="LU-11276"><del>LU-11276</del></a> ldlm: fix lock convert races<br/> Project: fs/lustre-release<br/> Branch: b2_12<br/> Current Patch Set: 1<br/> Commit: e224356901cc439833f03d174d2783169462917c</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/39854/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/39854/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-11276" title="racer: mdc_dev.c:1346:mdc_req_attr_set()) uncovered page" class="issue-link" data-issue-key="LU-11276"><del>LU-11276</del></a> ldlm: fix lock convert races<br/> Project: fs/lustre-release<br/> Branch: b2_12<br/> Current Patch Set: <br/> Commit: dcbb023c2f57fff8c856cb5c777855266b7f7b6c</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> [ 1851.605177] LustreError: 330093:0:(mdc_dev.c:1428:mdc_req_attr_set()) uncovered page! [ 1851.605222] LustreError: 330093:0:(mdc_dev.c:1429:mdc_req_attr_set()) LBUG [ 1851.605260] Pid: 330093, comm: kworker/u4:0 4.18.0 #2 SMP Sun Oct 23 17:58:04 UTC 2022 [ 1851.605305] Call Trace TBD: [ 1851.605329] [&lt;0&gt;] libcfs_call_trace+0x67/0x90 [libcfs] [ 1851.605373] [&lt;0&gt;] lbug_with_loc+0x3e/0x80 [libcfs] [ 1851.605416] [&lt;0&gt;] mdc_req_attr_set+0x153/0x160 [mdc] [ 1851.605482] [&lt;0&gt;] cl_req_attr_set+0x56/0x150 [obdclass] [ 1851.605533] [&lt;0&gt;] osc_build_rpc+0x3e0/0x1210 [osc] [ 1851.605718] [&lt;0&gt;] osc_io_unplug0+0x167e/0x18b0 [osc] [ 1851.605773] [&lt;0&gt;] osc_cache_writeback_range+0xf05/0xfa0 [osc] [ 1851.605826] [&lt;0&gt;] mdc_io_fsync_start+0x4a/0x170 [mdc] [ 1851.605886] [&lt;0&gt;] cl_io_start+0x55/0x110 [obdclass] [ 1851.605935] [&lt;0&gt;] lov_io_call.isra.9+0x7c/0x140 [lov] [ 1851.605994] [&lt;0&gt;] cl_io_start+0x55/0x110 [obdclass] [ 1851.606057] [&lt;0&gt;] cl_io_loop+0x95/0x200 [obdclass] [ 1851.606114] [&lt;0&gt;] cl_sync_file_range+0x27c/0x2f0 [lustre] [ 1851.606169] [&lt;0&gt;] ll_writepages+0x6e/0x1e0 [lustre] [ 1851.606214] [&lt;0&gt;] do_writepages+0x29/0xc0 [ 1851.606237] [&lt;0&gt;] __writeback_single_inode+0x30/0x190 [ 1851.606268] [&lt;0&gt;] writeback_sb_inodes+0x1c0/0x3d0 [ 1851.606299] [&lt;0&gt;] __writeback_inodes_wb+0x5a/0xc0 [ 1851.606329] [&lt;0&gt;] wb_writeback+0x1b7/0x1c0 [ 1851.606352] [&lt;0&gt;] wb_workfn+0x1da/0x320 [ 1851.606376] [&lt;0&gt;] process_one_work+0x23f/0x420 [ 1851.606407] [&lt;0&gt;] worker_thread+0x35/0x3e0 </pre> </div></div> <p>old evil returns in racer?</p> <p>still hitting in racer:</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> [ 1885.498891] LustreError: 70454:0:(mdc_dev.c:1449:mdc_req_attr_set()) page@000000003d88dd0e[2 00000000b08be5c2 3 1 000000004fac1a50] [ 1885.499034] LustreError: 70454:0:(mdc_dev.c:1449:mdc_req_attr_set()) vmpage @00000000c1af35f0 2480000005028 2:0 ffffa218584fdd98 0 lru [ 1885.499181] LustreError: 70454:0:(mdc_dev.c:1449:mdc_req_attr_set()) osc-page@0000000071245808 0: 1&lt; 2 + + &gt; 2&lt; 0 0 52 0x5 0x40420 | 000000004fac1a50 00000000a2ae15e2 00000000ab94b77b &gt; 3&lt; 1 0 &gt; 4&lt; 0 0 8 30150656 - | - - + - &gt; 5&lt; - - + - | 0 - | 0 - -&gt; [ 1885.499444] LustreError: 70454:0:(mdc_dev.c:1449:mdc_req_attr_set()) end page@000000003d88dd0e [ 1885.499560] LustreError: 70454:0:(mdc_dev.c:1449:mdc_req_attr_set()) uncovered page! [ 1885.499656] LustreError: 70454:0:(mdc_dev.c:1450:mdc_req_attr_set()) LBUG [ 1885.499736] Pid: 70454, comm: kworker/u8:5 4.18.0 #2 SMP Sun Oct 23 17:58:04 UTC 2022 [ 1885.499829] Call Trace TBD: [ 1885.499876] [&lt;0&gt;] libcfs_call_trace+0x5e/0x80 [libcfs] [ 1885.499946] [&lt;0&gt;] lbug_with_loc+0x3e/0x80 [libcfs] [ 1885.500036] [&lt;0&gt;] mdc_req_attr_set+0x150/0x150 [mdc] [ 1885.500126] [&lt;0&gt;] cl_req_attr_set+0x56/0x150 [obdclass] [ 1885.500203] [&lt;0&gt;] osc_build_rpc+0x448/0x1340 [osc] [ 1885.500277] [&lt;0&gt;] osc_io_unplug0+0x16f9/0x1930 [osc] [ 1885.500351] [&lt;0&gt;] osc_cache_writeback_range+0xf05/0xfa0 [osc] [ 1885.500438] [&lt;0&gt;] mdc_io_fsync_start+0xbb/0x240 [mdc] [ 1885.500527] [&lt;0&gt;] cl_io_start+0x55/0x110 [obdclass] [ 1885.500604] [&lt;0&gt;] lov_io_call.isra.9+0x6a/0x150 [lov] [ 1885.500688] [&lt;0&gt;] cl_io_start+0x55/0x110 [obdclass] [ 1885.500775] [&lt;0&gt;] cl_io_loop+0x95/0x200 [obdclass] [ 1885.500859] [&lt;0&gt;] cl_sync_file_range+0x27c/0x2f0 [lustre] [ 1885.500950] [&lt;0&gt;] ll_writepages+0xb3/0x260 [lustre] [ 1885.501021] [&lt;0&gt;] do_writepages+0x29/0xc0 [ 1885.501072] [&lt;0&gt;] __writeback_single_inode+0x30/0x190 [ 1885.501138] [&lt;0&gt;] writeback_sb_inodes+0x1c0/0x3d0 [ 1885.501203] [&lt;0&gt;] __writeback_inodes_wb+0x5a/0xc0 [ 1885.501268] [&lt;0&gt;] wb_writeback+0x1b7/0x1c0 [ 1885.501317] [&lt;0&gt;] wb_workfn+0x1da/0x320 [ 1885.501368] [&lt;0&gt;] process_one_work+0x23f/0x420 [ 1885.501433] [&lt;0&gt;] worker_thread+0x35/0x3e0 [ 1885.501482] [&lt;0&gt;] kthread+0x129/0x140 [ 1885.501540] [&lt;0&gt;] ret_from_fork+0x1f/0x30 </pre> </div></div> Duplicate Related LU-12321 LU-15893 LU-13927 LU-12124 Development Rank 1|i0014f: Rank (Obsolete) 9223372036854775807 Severity