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-4127 Lustre <p>Trigger Bug</p> <ul class="alternate" type="square"> <li>modprobe fld</li> </ul> <p>[ 395.749857] LustreError: 8638:0:(lu_object.c:1314:lu_context_key_register()) ASSERTION( key-&gt;lct_init != ((void *)0) ) failed: <br/> [ 395.761503] LustreError: 8638:0:(lu_object.c:1314:lu_context_key_register()) LBUG<br/> [ 395.769982] Kernel panic - not syncing: LBUG<br/> [ 395.774365] CPU: 1 PID: 8638 Comm: modprobe Tainted: G C 3.12.0-rc5-qlustar-gen-1 #1<br/> [ 395.783134] Hardware name: Supermicro X8DTT-H/X8DTT-H, BIOS 080016 03/08/2010<br/> [ 395.790525] ffffffffa0a27cd8 ffff880c186b1c38 ffffffff81549200 0000000000000007<br/> [ 395.798332] ffffffffa051873d ffff880c186b1cb8 ffffffff81546827 ffffffff816746fd<br/> [ 395.806149] ffffffff00000008 ffff880c186b1cc8 ffff880c186b1c68 ffffffffa06af350<br/> [ 395.813963] Call Trace:<br/> [ 395.816516] <span class="error">&#91;&lt;ffffffff81549200&gt;&#93;</span> dump_stack+0x46/0x58<br/> [ 395.821757] <span class="error">&#91;&lt;ffffffff81546827&gt;&#93;</span> panic+0xb6/0x1c6<br/> [ 395.826667] <span class="error">&#91;&lt;ffffffffa04fcb50&gt;&#93;</span> lbug_with_loc+0xb0/0xb0 <span class="error">&#91;libcfs&#93;</span><br/> [ 395.832963] <span class="error">&#91;&lt;ffffffffa06902b1&gt;&#93;</span> lu_context_key_register+0x131/0x140 <span class="error">&#91;obdclass&#93;</span><br/> [ 395.840514] <span class="error">&#91;&lt;ffffffffa0a2a000&gt;&#93;</span> ? 0xffffffffa0a29fff<br/> [ 395.845756] <span class="error">&#91;&lt;ffffffffa0a2a000&gt;&#93;</span> ? 0xffffffffa0a29fff<br/> [ 395.850999] <span class="error">&#91;&lt;ffffffffa0a2a041&gt;&#93;</span> fld_mod_init+0x41/0x45 <span class="error">&#91;fld&#93;</span><br/> [ 395.856936] <span class="error">&#91;&lt;ffffffff81000239&gt;&#93;</span> do_one_initcall+0x49/0x170<br/> [ 395.862709] <span class="error">&#91;&lt;ffffffff8106ad3e&gt;&#93;</span> ? __blocking_notifier_call_chain+0x5e/0x80<br/> [ 395.869863] <span class="error">&#91;&lt;ffffffff810a7f7a&gt;&#93;</span> load_module+0x1bca/0x22f0<br/> [ 395.875543] <span class="error">&#91;&lt;ffffffff810a56b0&gt;&#93;</span> ? __symbol_get+0x70/0x70<br/> [ 395.881132] <span class="error">&#91;&lt;ffffffff810a8738&gt;&#93;</span> SyS_init_module+0x98/0xc0<br/> [ 395.886810] <span class="error">&#91;&lt;ffffffff81556da6&gt;&#93;</span> system_call_fastpath+0x1a/0x1f</p> Plain 3.12-rc5 LU-4127

Loading fld module crashes kernel in mainline 3.12-rc.5

Bug Critical Resolved Fixed WC Triage Roland Fehrenbacher Sat, 19 Oct 2013 14:22:56 +0000 Fri, 27 Dec 2013 17:02:39 +0000 Wed, 27 Nov 2013 19:00:05 +0000 Lustre 2.4.1 0 4 <p>Attached used .config</p> <p>The attached patch that partly reverts e62e5d9251bf8efd08318e78bcaca86fde228383 (staging/lustre/fld: prepare FLD module for client server split) fixes the problem. Might be a good idea to get this into 3.12 final, so it will at least be possible to do a mount and some writing. Unfortunately deleting won't be possible due to another critical bug (see related Jira report <a href="https://jira.hpdd.intel.com/browse/LU-4157" class="external-link" target="_blank" rel="nofollow noopener">https://jira.hpdd.intel.com/browse/LU-4157</a>).</p> <p>Peng Tao fixed this in upstream. See <a href="https://git.kernel.org/cgit/linux/kernel/git/gregkh/staging.git/commit/?h=staging-next&amp;id=86bac591def1a5b7060c0834828b1eaabfe7f0a7" class="external-link" target="_blank" rel="nofollow noopener">https://git.kernel.org/cgit/linux/kernel/git/gregkh/staging.git/commit/?h=staging-next&amp;id=86bac591def1a5b7060c0834828b1eaabfe7f0a7</a></p> Related LU-4416 Development Rank 1|hzw68v: Rank (Obsolete) 11137 Severity