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<p class="MsoNormal">My understanding, in general terms, is that the messages:<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">[ 26.653699] libcfs: loading out-of-tree module taints kernel.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">[ 26.665567] libcfs: module verification failed: signature and/or required key missing - tainting kernel<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Suggests that the libcfs.ko kernel module is not signed.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Note that kernel module signing is different from the rpm package signing.<o:p></o:p></p>
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<p class="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<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Good Afternoon,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="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.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Looking in dmesg I see right as the lnet service starts to mount the following:<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">[ 26.653699] libcfs: loading out-of-tree module taints kernel.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">[ 26.665567] libcfs: module verification failed: signature and/or required key missing - tainting kernel<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">[ 26.683188] LNet: HW NUMA nodes: 1, HW CPU cores: 8, npartitions: 2<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">[ 26.725826] alg: No test for adler32 (adler32-zlib)<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">[ 27.674142] Lustre: Lustre: Build Version: 2.10.7<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="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<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">lustre-client-dkms-2.10.7-1.el7.noarch<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">lustre-client-2.10.7-1.el7.x86_64<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="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.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">w/r,<o:p></o:p></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"><o:p></o:p></span></p>
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