<div dir="ltr"><div><div><div><div><div>Hello Oleg,<br><br></div>Thanks for your response.<br><br></div>The kernel I'm using is 2.6.32-279.19.1.el6.x86_64<br><br></div>This client mounts NFS shares from another server. They're not mounted directly onto Lustre filesystem, but rather onto a tmpfs filesystem residing in the memory.<br>
<br>[root@node01 ~]# df -h /<br>Filesystem Size Used Avail Use% Mounted on<br>tmpfs 50M 484K 50M 1% /<br><br></div><div>I've removed the NFS mounts but can still see the same error. This client does not share NFS to others.<br>
</div><div><br></div>Thank you.<br><br></div>Murshid Azman.<br><div><div><br></div></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Aug 22, 2014 at 9:12 PM, Drokin, Oleg <span dir="ltr"><<a href="mailto:oleg.drokin@intel.com" target="_blank">oleg.drokin@intel.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello!<br>
<div><div class="h5"><br>
On Aug 22, 2014, at 3:28 AM, Murshid Azman wrote:<br>
> We're trying to run a cluster image on Lustre filesystem version 2.5.2 and repeatedly seeing the following message. Haven't seen anything bizarre on this machine other than this:<br>
><br>
> 2014-08-22T13:52:01+07:00 node01 kernel: LustreError: 4271:0:(namei.c:530:ll_lookup_<br>
> it()) Tell Peter, lookup on mtpt, it open<br>
> 2014-08-22T13:52:01+07:00 node01 kernel: LustreError: 4271:0:(namei.c:530:ll_lookup_it()) Skipped 128 previous similar messages<br>
><br>
> This doesn't happen to our desktop Lustre clients.<br>
><br>
> I'm wondering if anyone has any idea what this means.<br>
<br>
</div></div>This is one of those "impossible condition has been met" messages. Essentially it means that we got a lookup call for a mountpount,<br>
which should not happen because it's a mountpoint, so it's always valid and pinned in memory at the very least.<br>
<br>
What kernel do you use? anything else interesting about this client - e.g. NFS rexport?<br>
<br>
Bye,<br>
Oleg</blockquote></div><br></div>