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-4400 Lustre <p>This is a followup on <a href="https://jira.hpdd.intel.com/browse/LU-4231" class="external-link" target="_blank" rel="nofollow noopener">https://jira.hpdd.intel.com/browse/LU-4231</a>. With the patch mentioned in <a href="https://jira.whamcloud.com/browse/LU-4231" title="NFS reexport leads to LBUG in mainline 3.12 client" class="issue-link" data-issue-key="LU-4231"><del>LU-4231</del></a> applied I can<br/> mount NFS, but when putting some stress on the NFS directory, I get the following LBUG<br/> basically immediately:</p> <p>LustreError: 8102:0:(dcache.c:223:ll_dops_init()) ASSERTION( de-&gt;d_op == &amp;ll_d_ops ) failed: <br/> [ 669.579419] LustreError: 8102:0:(dcache.c:223:ll_dops_init()) LBUG<br/> [ 669.586643] Kernel panic - not syncing: LBUG<br/> [ 669.590984] CPU: 1 PID: 8102 Comm: nfsd Tainted: P C O 3.12.5-ql-generic-14 #1<br/> [ 669.599015] Hardware name: Supermicro X8DTT-H/X8DTT-H, BIOS 080016 03/08/2010<br/> [ 669.606354] 0000000000000000 ffff88061064f9c8 ffffffff814fdd82 ffff880333c2dcf8<br/> [ 669.613968] ffffffffa032c6bd ffff88061064fa48 ffffffff814fb31f ffffffff815ec722<br/> [ 669.621568] ffffffff00000008 ffff88061064fa58 ffff88061064f9f8 ffffffffa09b0b60<br/> [ 669.629169] Call Trace:<br/> [ 669.631687] <span class="error">&#91;&lt;ffffffff814fdd82&gt;&#93;</span> dump_stack+0x46/0x58<br/> [ 669.636892] <span class="error">&#91;&lt;ffffffff814fb31f&gt;&#93;</span> panic+0xb6/0x1c6<br/> [ 669.641762] <span class="error">&#91;&lt;ffffffffa0310b50&gt;&#93;</span> lbug_with_loc+0xb0/0xb0 <span class="error">&#91;libcfs&#93;</span><br/> [ 669.648006] <span class="error">&#91;&lt;ffffffffa0956cc5&gt;&#93;</span> ll_dops_init+0x215/0x3e0 <span class="error">&#91;lustre&#93;</span><br/> [ 669.654337] <span class="error">&#91;&lt;ffffffff8114ea41&gt;&#93;</span> ? d_obtain_alias+0x41/0x1b0<br/> [ 669.660153] <span class="error">&#91;&lt;ffffffffa09870cb&gt;&#93;</span> ll_iget_for_nfs+0xbb/0x200 <span class="error">&#91;lustre&#93;</span><br/> [ 669.666664] <span class="error">&#91;&lt;ffffffffa09874e8&gt;&#93;</span> ll_get_parent+0x2d8/0x540 <span class="error">&#91;lustre&#93;</span><br/> [ 669.673091] <span class="error">&#91;&lt;ffffffffa027c458&gt;&#93;</span> reconnect_path+0x118/0x290 <span class="error">&#91;exportfs&#93;</span><br/> [ 669.679771] <span class="error">&#91;&lt;ffffffffa02834d0&gt;&#93;</span> ? _fh_update.isra.9.part.10+0x50/0x50 <span class="error">&#91;nfsd&#93;</span><br/> [ 669.687118] <span class="error">&#91;&lt;ffffffffa027c6b9&gt;&#93;</span> exportfs_decode_fh+0xe9/0x300 <span class="error">&#91;exportfs&#93;</span><br/> [ 669.694060] <span class="error">&#91;&lt;ffffffffa0289205&gt;&#93;</span> ? exp_find+0x105/0x1c0 <span class="error">&#91;nfsd&#93;</span><br/> [ 669.700044] <span class="error">&#91;&lt;ffffffff8108c8ab&gt;&#93;</span> ? getboottime+0x2b/0x30<br/> [ 669.705519] <span class="error">&#91;&lt;ffffffffa02838e6&gt;&#93;</span> fh_verify+0x2f6/0x5a0 <span class="error">&#91;nfsd&#93;</span><br/> [ 669.711415] <span class="error">&#91;&lt;ffffffff81486905&gt;&#93;</span> ? svcauth_unix_set_client+0x4f5/0x5a0<br/> [ 669.718101] <span class="error">&#91;&lt;ffffffffa0291912&gt;&#93;</span> nfsd3_proc_getacl+0x62/0x1e0 <span class="error">&#91;nfsd&#93;</span><br/> [ 669.724611] <span class="error">&#91;&lt;ffffffffa0280ca1&gt;&#93;</span> nfsd_dispatch+0xa1/0x1b0 <span class="error">&#91;nfsd&#93;</span><br/> [ 669.730774] <span class="error">&#91;&lt;ffffffff81481d3f&gt;&#93;</span> svc_process_common+0x2ef/0x5a0<br/> [ 669.736846] <span class="error">&#91;&lt;ffffffff8148233f&gt;&#93;</span> svc_process+0xff/0x150<br/> [ 669.742222] <span class="error">&#91;&lt;ffffffffa02806ef&gt;&#93;</span> nfsd+0xbf/0x130 <span class="error">&#91;nfsd&#93;</span><br/> [ 669.747598] <span class="error">&#91;&lt;ffffffffa0280630&gt;&#93;</span> ? nfsd_destroy+0x80/0x80 <span class="error">&#91;nfsd&#93;</span><br/> [ 669.753754] <span class="error">&#91;&lt;ffffffff8106013b&gt;&#93;</span> kthread+0xbb/0xc0<br/> [ 669.758692] <span class="error">&#91;&lt;ffffffff81060080&gt;&#93;</span> ? kthread_freezable_should_stop+0x70/0x70<br/> [ 669.765721] <span class="error">&#91;&lt;ffffffff8150a8bc&gt;&#93;</span> ret_from_fork+0x7c/0xb0<br/> [ 669.771187] <span class="error">&#91;&lt;ffffffff81060080&gt;&#93;</span> ? kthread_freezable_should_stop+0x70/0x70</p> - Client mainline kernel 3.12.5 with patches (mentioned below) / lustre-utils 2.4.0 <br/> - Servers lustre 2.4.0/ZFS OSDs <br/> - ko2iblnd <br/> - reexport works with 2.6.32/2.4.0 client LU-4400

Another LBUG with NFS reexport mainline 3.12 client

Bug Major Resolved Fixed Dmitry Eremin Roland Fehrenbacher Thu, 19 Dec 2013 19:22:55 +0000 Thu, 31 Jul 2014 10:43:32 +0000 Thu, 31 Jul 2014 10:43:32 +0000 Lustre 2.4.1 0 4 <p>I just saw that this is already fixed in master and b2_5 with 6784a15c6ee32019237151a63755103c68ff51dd.<br/> I tested the mainline client with this patch and it seems to work (stress tested for 30min. without error).<br/> Please update b2_4 and mainline client with this patch.</p> <p>Patch for mainline kernel.</p> <p>The same issue as <a href="https://jira.whamcloud.com/browse/LU-3486" title="LBUG when exporting Lustre 2.4 via NFS on SLES11SP2: ll_dops_init: ASSERTION( de-&gt;d_op == &amp;ll_d_ops ) failed" class="issue-link" data-issue-key="LU-3486"><del>LU-3486</del></a>. The fix should be back ported to upstream.</p> <p>This patch was merged upstream in commit 3ea8f3bcabe422c6b5778089ae0929c1028e58f8. This ticket can be closed.</p> Related LU-3486 LU-4416 Development Rank 1|hzwbof: Rank (Obsolete) 12080 Severity