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-11692 Lustre <p>We get the following error on occasion on our Lustre gateways (Lustre clients exporting filesystems over NFS for non-Lustre clients):</p> <p> </p> <p>cmcl@foxtrot3 ~ -bash$<br/> Message from syslogd@foxtrot3 at Nov 15 20:20:25 ...<br/> kernel:LustreError: 3501:0:(niobuf.c:330:ptlrpc_register_bulk()) ASSERTION( desc-&gt;bd_md_count == 0 ) failed:</p> <p>Message from syslogd@foxtrot3 at Nov 15 20:20:25 ...<br/> kernel:LustreError: 3501:0:(niobuf.c:330:ptlrpc_register_bulk()) LBUG</p> <p>Message from syslogd@foxtrot3 at Nov 15 20:20:25 ...<br/> kernel:Kernel panic - not syncing: LBUG<br/> packet_write_wait: Connection to 10.21.22.32 port 22: Broken pipe</p> <p> </p> LU-11692

lustre kernel panic - (niobuf.c:330:ptlrpc_register_bulk()) LBUG

Bug Minor Resolved Duplicate Andreas Dilger Campbell Mcleay Thu, 22 Nov 2018 14:45:40 +0000 Thu, 28 Feb 2019 16:09:43 +0000 Thu, 28 Feb 2019 16:09:43 +0000 Lustre 2.10.2 0 3 <p><a href="https://jira.whamcloud.com/secure/ViewProfile.jspa?name=cmcl" class="user-hover" rel="cmcl">cmcl</a> which version of Lustre are you running?</p> <p>Oops sorry, should have put that in:</p> <p>2.10.2-1.el7</p> <p>kernel is: kernel-3.10.0-693.5.2.el7_lustre</p> <p>The patch in <a href="https://jira.whamcloud.com/browse/LU-11647" title="niobuf.c:330:ptlrpc_register_bulk()) ASSERTION( desc-&gt;bd_md_count == 0 ) failed:" class="issue-link" data-issue-key="LU-11647"><del>LU-11647</del></a> should fix this issue. It is still undergoing testing and has not yet landed for any release. The patch is <a href="https://review.whamcloud.com/33167" class="external-link" target="_blank" rel="nofollow noopener">https://review.whamcloud.com/33167</a> "<a href="https://jira.whamcloud.com/browse/LU-11647" title="niobuf.c:330:ptlrpc_register_bulk()) ASSERTION( desc-&gt;bd_md_count == 0 ) failed:" class="issue-link" data-issue-key="LU-11647"><del>LU-11647</del></a> ptlrpc: race with reply_in_callback".</p> <p>Since this is a client-only patch you could potentially install it on one or more of the NFS-exporting clients to determine if that patch resolves the problem for you.</p> <p>Just some feedback: there has not been any crashes on clients since installing the patched software.</p> <p>ok then I think that it is ok to close this ticket as a duplicate of <a href="https://jira.whamcloud.com/browse/LU-11647" title="niobuf.c:330:ptlrpc_register_bulk()) ASSERTION( desc-&gt;bd_md_count == 0 ) failed:" class="issue-link" data-issue-key="LU-11647"><del>LU-11647</del></a></p> <p>Reopen to fix resolution type. </p> Duplicate LU-8573 LU-11647 Development Rank 1|i006s7: Rank (Obsolete) 9223372036854775807 Severity