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-10607 Lustre <p>I missed this originally, but looks like <a href="https://review.whamcloud.com/#/c/30909/2" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/#/c/30909/2</a> introduced a regression into master.</p> <p>Every time I mount lustre on ZFS, I get this:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>[ 54.320874] ZFS: Loaded module v0.7.1-1, ZFS pool version 5000, ZFS filesystem version 5 [ 82.005278] BUG: spinlock bad magic on CPU#1, mount.lustre/5874 [ 82.007911] lock: 0xffff88030066e688, .magic: 00000000, .owner: &lt;none&gt;/-1, .owner_cpu: 0 [ 82.008146] CPU: 1 PID: 5874 Comm: mount.lustre Tainted: P OE ------------ 3.10.0-debug #2 [ 82.008381] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011 [ 82.008526] 0000000000000000 00000000c03a9b87 ffff8800b00ff798 ffffffff816fd3e4 [ 82.010041] ffff8800b00ff7b8 ffffffff816fd472 ffff88030066e688 ffffffff81aa1a78 [ 82.013275] ffff8800b00ff7d8 ffffffff816fd498 ffff88030066e688 0000000000000001 [ 82.014974] Call Trace: [ 82.015815] [&lt;ffffffff816fd3e4&gt;] dump_stack+0x19/0x1b [ 82.016589] [&lt;ffffffff816fd472&gt;] spin_dump+0x8c/0x91 [ 82.017340] [&lt;ffffffff816fd498&gt;] spin_bug+0x21/0x26 [ 82.018086] [&lt;ffffffff8138ec10&gt;] do_raw_spin_lock+0x130/0x150 [ 82.018858] [&lt;ffffffff81706249&gt;] _raw_spin_lock+0x49/0x50 [ 82.019714] [&lt;ffffffffa032ebf7&gt;] ? lprocfs_oh_tally+0x17/0x40 [obdclass] [ 82.032661] [&lt;ffffffffa032ebf7&gt;] lprocfs_oh_tally+0x17/0x40 [obdclass] [ 82.036879] [&lt;ffffffffa113781b&gt;] record_start_io.part.13+0x2b/0x40 [osd_zfs] [ 82.037792] [&lt;ffffffffa1137f1d&gt;] osd_read+0xfd/0x2b0 [osd_zfs] [ 82.038385] [&lt;ffffffffa0356244&gt;] dt_read+0x14/0x50 [obdclass] [ 82.039012] [&lt;ffffffffa037a52f&gt;] scrub_file_load+0x4f/0x410 [obdclass] [ 82.039792] [&lt;ffffffffa115290a&gt;] osd_scrub_setup+0x3ea/0xb50 [osd_zfs] [ 82.040618] [&lt;ffffffffa112c26a&gt;] osd_mount+0xdfa/0x1170 [osd_zfs] [ 82.041425] [&lt;ffffffff81706717&gt;] ? _raw_read_unlock+0x27/0x40 [ 82.042127] [&lt;ffffffffa112cc1d&gt;] osd_device_alloc+0x34d/0x400 [osd_zfs] [ 82.043068] [&lt;ffffffffa0341084&gt;] obd_setup+0x114/0x2a0 [obdclass] [ 82.043668] [&lt;ffffffffa03414b6&gt;] class_setup+0x2a6/0x840 [obdclass] [ 82.044592] [&lt;ffffffffa0345032&gt;] class_process_config+0x1b62/0x28a0 [obdclass] [ 82.046302] [&lt;ffffffff811cd4f9&gt;] ? __kmalloc+0x649/0x660 [ 82.047316] [&lt;ffffffffa01f3f47&gt;] ? libcfs_debug_msg+0x57/0x80 [libcfs] [ 82.048126] [&lt;ffffffffa0348ae8&gt;] do_lcfg+0x258/0x4b0 [obdclass] [ 82.048907] [&lt;ffffffffa034cb48&gt;] lustre_start_simple+0x88/0x210 [obdclass] [ 82.049714] [&lt;ffffffffa0379154&gt;] server_fill_super+0xf34/0x1860 [obdclass] [ 82.050487] [&lt;ffffffffa01f3f47&gt;] ? libcfs_debug_msg+0x57/0x80 [libcfs] [ 82.062653] [&lt;ffffffffa0350680&gt;] lustre_fill_super+0x3d0/0x8b0 [obdclass] [ 82.063465] [&lt;ffffffffa03502b0&gt;] ? lustre_common_put_super+0xb50/0xb50 [obdclass] [ 82.065632] [&lt;ffffffff811f0ebd&gt;] mount_nodev+0x4d/0xb0 [ 82.069485] [&lt;ffffffffa0348818&gt;] lustre_mount+0x38/0x60 [obdclass] [ 82.070379] [&lt;ffffffff811f1899&gt;] mount_fs+0x39/0x1b0 [ 82.071309] [&lt;ffffffff8120e843&gt;] vfs_kern_mount+0x63/0xf0 [ 82.072876] [&lt;ffffffff81210ebe&gt;] do_mount+0x24e/0xa40 [ 82.073642] [&lt;ffffffff811767fe&gt;] ? __get_free_pages+0xe/0x50 [ 82.074377] [&lt;ffffffff81211746&gt;] SyS_mount+0x96/0xf0 [ 82.075246] [&lt;ffffffff8170fc49&gt;] system_call_fastpath+0x16/0x1b </pre> </div></div> LU-10607

uninitialized spinlock in osd_zfs

Bug Critical Resolved Fixed nasf Oleg Drokin Tue, 6 Feb 2018 00:38:05 +0000 Sat, 9 May 2020 13:13:08 +0000 Tue, 6 Mar 2018 21:17:21 +0000 Lustre 2.11.0 0 6 <p>Fan Yong</p> <p>Can you please advise</p> <p>Thanks</p> <p>Peter</p> <p>Fan Yong (fan.yong@intel.com) uploaded a new patch: <a href="https://review.whamcloud.com/31180" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/31180</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-10607" title="uninitialized spinlock in osd_zfs" class="issue-link" data-issue-key="LU-10607"><del>LU-10607</del></a> osd-zfs: skip io stat before lproc initialized<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: 1<br/> Commit: a6096058f1ed4af0b246babba9166978c0a6d9b9</p> <p>Oleg Drokin (oleg.drokin@intel.com) merged in patch <a href="https://review.whamcloud.com/31180/" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/31180/</a><br/> Subject: <a href="https://jira.whamcloud.com/browse/LU-10607" title="uninitialized spinlock in osd_zfs" class="issue-link" data-issue-key="LU-10607"><del>LU-10607</del></a> osd-zfs: skip io stat for OI scrub<br/> Project: fs/lustre-release<br/> Branch: master<br/> Current Patch Set: <br/> Commit: 763c07c431b2ae0a91f4caccf3a4ce86fbc67243</p> <p>Landed for 2.11</p> <p>This fix seems incomplete. Lustre will still crash a little further with this fix with the same root cause (incomplete osd stats initialization):</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> [ 5696.621248] [&lt;ffffffffc169719b&gt;] record_start_io.part.14+0x2b/0x40 [osd_zfs] [ 5696.623630] [&lt;ffffffffc1698322&gt;] osd_read+0xa2/0x180 [osd_zfs] [ 5696.625807] [&lt;ffffffffc1167dee&gt;] dt_record_read+0x1e/0x70 [obdclass] [ 5696.628063] [&lt;ffffffffc1190997&gt;] lustre_index_restore+0x527/0x1720 [obdclass] [ 5696.637015] [&lt;ffffffffc16b2564&gt;] osd_initial_OI_scrub+0xa34/0xd50 [osd_zfs] [ 5696.639357] [&lt;ffffffffc16b34fd&gt;] osd_scrub_setup+0x9ed/0xb90 [osd_zfs] [ 5696.641585] [&lt;ffffffffc168a97b&gt;] osd_mount+0xf4b/0x1380 [osd_zfs] </pre> </div></div> Duplicate LU-10642 Related LU-13542 Development Rank 1|hzzs7j: Rank (Obsolete) 9223372036854775807 Severity