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-13441 Lustre <p>Using file with more than 500 stripes trigger the following assertion failure on MDS with a ZFS backend. The filesystem had 700 OSTs.</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> LustreError: 8621:0:(osd_oi.c:796:osd_idc_add()) ASSERTION( i &lt; 1000 ) failed: LustreError: 8621:0:(osd_oi.c:796:osd_idc_add()) LBUG Pid: 8621, comm: mdt01_000 4.14.165-131.185.amzn2.x86_64 #1 SMP Wed Jan 15 14:19:56 UTC 2020 Call Trace: save_stack_trace_tsk+0x43/0x60 libcfs_call_trace+0x86/0xc0 [libcfs] lbug_with_loc+0x3f/0x90 [libcfs] osd_idc_add+0x2ed/0x340 [osd_zfs] osd_idc_find_and_init+0x6a/0x80 [osd_zfs] osd_declare_create+0x151/0x340 [osd_zfs] local_object_declare_create+0x1e7/0x5c0 [obdclass] llog_osd_declare_create+0xd8/0x790 [obdclass] llog_declare_create+0xbc/0x1f0 [obdclass] llog_cat_declare_add_rec+0x15e/0x850 [obdclass] llog_declare_add+0x73/0x1a0 [obdclass] osp_sync_declare_add+0x13c/0x410 [osp] osp_declare_destroy+0xed/0x1c0 [osp] lod_sub_declare_destroy+0xc4/0x310 [lod] lod_obj_for_each_stripe+0xb6/0x220 [lod] lod_declare_destroy+0x445/0x4e0 [lod] mdd_declare_finish_unlink+0x80/0x250 [mdd] mdd_unlink+0x573/0xb50 [mdd] mdt_reint_unlink+0xd91/0x1470 [mdt] mdt_reint_rec+0x7f/0x250 [mdt] mdt_reint_internal+0x5ee/0x680 [mdt] mdt_reint+0x5e/0x110 [mdt] tgt_request_handle+0x814/0x14b0 [ptlrpc] ptlrpc_server_handle_request+0x2c7/0xb70 [ptlrpc] ptlrpc_main+0xb17/0x1ee0 [ptlrpc] kthread+0x11a/0x130 ret_from_fork+0x35/0x40 0xffffffffffffffff Kernel panic - not syncing: LBUG</pre> </div></div> <p> </p> <p>This could be easily reproduced with the following commands: </p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>cd /mnt/lustre mkdir data cd data lfs setstripe -c 500 file2 rm -f file2 lfs setstripe -c 511 file2 rm -f file2 lfs setstripe -c 512 file2 rm -f file2 &lt;MDT CRASH&gt; </pre> </div></div> <p> </p> LU-13441

ASSERTION( i < 1000 ) failed

Bug Minor Resolved Fixed Aurelien Degremont Aurelien Degremont Thu, 9 Apr 2020 13:43:57 +0000 Mon, 4 May 2020 12:58:02 +0000 Sun, 19 Apr 2020 14:22:51 +0000 Lustre 2.10.5 Lustre 2.12.4 Lustre 2.14.0 0 2 <p>Aurelien Degremont (degremoa@amazon.com) uploaded a new patch: <a href="https://review.whamcloud.com/38187" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/38187</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13441" title="ASSERTION( i &lt; 1000 ) failed" class="issue-link" data-issue-key="LU-13441"><del>LU-13441</del></a> osd-zfs: remove OSD thread info cache size assertion<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: 117ab46991ca9b3a300a4662e911822d6fc26af5</p> <p>The problem was seen with a 2.10 MDS and I could not easily test a `master` filesystem with so many OSTs. Reviewing the related code, it did not really change since so I think the bug is still there.</p> <p>Oleg Drokin (green@whamcloud.com) merged in patch <a href="https://review.whamcloud.com/38187/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/38187/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-13441" title="ASSERTION( i &lt; 1000 ) failed" class="issue-link" data-issue-key="LU-13441"><del>LU-13441</del></a> osd-zfs: remove OSD thread info cache size assertion<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 209f920fcddcf216c9a56239823a6bcb62ed367b</p> <p>Landed for 2.14</p> <p>For the record, I reproduced the crash with Lustre 2.12.4, using official RPMs.</p> Development Rank 1|i00xk7: Rank (Obsolete) 9223372036854775807 Severity