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This is correct, and normal. It’s not really a failure (in the sense of a being a problem), it’s just that you’re using modules that aren’t signed with the key used by your kernel vendor. In general, if you’re getting third party modules (ie not from your
kernel vendor), this happens, because the point of the signing is your kernel vendor verifying/certifying the module is theirs, and, well, it’s not.<br>
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A version of this message has probably been present every time you’ve loaded Lustre since you first used a kernel with signing enabled, which I think came in somewhere in the kernels used by RHEL6/SLES11, so some years back.<br>
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Nothing to worry about.
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> lustre-discuss <lustre-discuss-bounces@lists.lustre.org> on behalf of Shaun Tancheff <stancheff@cray.com><br>
<b>Sent:</b> Monday, June 24, 2019 4:21:18 PM<br>
<b>To:</b> Kurt Strosahl; lustre-discuss@lists.lustre.org<br>
<b>Subject:</b> Re: [lustre-discuss] lnet.service reporting failure on start</font>
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<p class="x_MsoNormal">My understanding, in general terms, is that the messages:</p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">[ 26.653699] libcfs: loading out-of-tree module taints kernel.</span></p>
<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">[ 26.665567] libcfs: module verification failed: signature and/or required key missing - tainting kernel</span></p>
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<p class="x_MsoNormal">Suggests that the libcfs.ko kernel module is not signed.</p>
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<p class="x_MsoNormal">Note that kernel module signing is different from the rpm package signing.</p>
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<p class="x_MsoNormal"><b><span style="font-size:12.0pt; color:black">From: </span>
</b><span style="font-size:12.0pt; color:black">lustre-discuss <lustre-discuss-bounces@lists.lustre.org> on behalf of Kurt Strosahl <strosahl@jlab.org><br>
<b>Date: </b>Monday, June 24, 2019 at 3:03 PM<br>
<b>To: </b>"lustre-discuss@lists.lustre.org" <lustre-discuss@lists.lustre.org><br>
<b>Subject: </b>[lustre-discuss] lnet.service reporting failure on start</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">Good Afternoon,</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> I recently stood up a new lustre client, when I run systemctl start lnet.service systemd reports a failure. However an lnetctl net show displays all the right information and I can reach
other nodes with lclt ping. Further the lustre file system mounts properly.</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">Looking in dmesg I see right as the lnet service starts to mount the following:</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">[ 26.653699] libcfs: loading out-of-tree module taints kernel.</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">[ 26.665567] libcfs: module verification failed: signature and/or required key missing - tainting kernel</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">[ 26.683188] LNet: HW NUMA nodes: 1, HW CPU cores: 8, npartitions: 2</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">[ 26.725826] alg: No test for adler32 (adler32-zlib)</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">[ 27.674142] Lustre: Lustre: Build Version: 2.10.7</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">The system is RHEL 7.6 kernel 3.10.0-957.21.2.el7.x86_64</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">lustre-client-dkms-2.10.7-1.el7.noarch</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">lustre-client-2.10.7-1.el7.x86_64</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">Has anyone seen this message or knows what might be causing it, or be able to suggest why systemd is reporting a failure even though it clearly works.</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">w/r,</span></p>
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<p><span style="font-size:10.5pt; font-family:"Courier New"; color:#333333">Kurt J. Strosahl<br>
System Administrator: Lustre, HPC<br>
Scientific Computing Group, Thomas Jefferson National Accelerator Facility</span><span style="font-size:12.0pt; color:black"></span></p>
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