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<p class="MsoNormal"><span lang="EN-US">Hi, all<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> I used multipath-toosl 0.6.4 for some testing. When executing udevadm trigger command, I find something wrong with multipathd. Logs are as follows:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Mar 15 19:26:00 server155 multipathd: sdj: path wwid changed from '360002ac000000000000000e700013071' to '360002ac0000000000000002600013071'. disallowing<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Mar 15 19:26:00 server155 kernel: [706183.837704] multipathd[1165440]: segfault at 198 ip 0000555f6d022607 sp 00007f1f992f5960 error 4 in multipathd[555f6d018000+18000]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-indent:10.5pt"><span lang="EN-US"> After parsing the address with objdump, I think uev_update_path accessing null pointer pp->mpp . Call trace maybe:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">uev_trigger<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:10.5pt"><span lang="EN-US">uev_update_path<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:21.0pt"><span lang="EN-US">dm_fail_path(pp->mpp->alias, pp->dev_t);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Has anyone ever met it and how to fix it?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Changkuo<o:p></o:p></span></p>
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