<div dir="ltr"><div dir="ltr">Hi <div>Thanks for the reply </div><div><br></div><div>We have seen the same guest VM freezing on vmware ESXi machine also , so we were interested in know in the internal condition of the guest vm when the freeze happened <span style="white-space:pre"> </span><br></div><div>How can we analyse the core file generated by "virsh dump "</div><div><br></div><div>Thanks and regards</div><div>Akshar</div></div></div><br><div class="gmail_quote"><div dir="ltr">On Wed, Jan 9, 2019 at 1:58 PM Manuel Wolfshant <<a href="mailto:wolfy@nobugconsulting.ro">wolfy@nobugconsulting.ro</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF">
<div class="gmail-m_1451368386468163067moz-cite-prefix">On 1/9/19 10:24 AM, Akshar Kanak wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div dir="ltr">
<div>Dear team </div>
<div> I am running a centos guest VM which freezes for
every few days . The qemu-kvm on shows 100% cpu
utilization.</div>
<div> Ping to the guest might work or may not work .Please
can you tell me what approach can i take to debug it .</div>
<div> using "virsh dump" I can dump the core of the guest
vm but I am not sure how to analyse it . </div>
<div> Guest Centos VM : "Linux GUESTCentOS70
3.10.0-123.4.4.el7.x86_64 #1 SMP Fri Jul 25 05:07:12 UTC
2014 x86_64 x86_64 x86_64 GNU/Linux"</div>
<div><span style="white-space:pre-wrap"> </span> "CentOS Linux
release 7.0.1406 (Core)"</div>
<div><span style="white-space:pre-wrap"> </span> 1 vcpu and 2
GB ram </div>
<div><span style="white-space:pre-wrap"> </span> </div>
<div><span style="white-space:pre-wrap"> </span>Host machine :
"Linux HOST 3.10.51-1.el6.elrepo.x86_64 #1 SMP Fri Aug 1
13:14:11 EDT 2014 x86_64 x86_64 x86_64 GNU/Linux"</div>
<div><span style="white-space:pre-wrap"> </span>"CentOS release
6.5 (Final)"</div>
<div><span style="white-space:pre-wrap"> </span>qemu-kvm package
used : qemu-kvm-0.12.1.2-2.415.el6_5.10.x86_64</div>
<div><span style="white-space:pre-wrap"> </span></div>
<div><span style="white-space:pre-wrap"> </span>Thanks and regards</div>
<div><span style="white-space:pre-wrap"> </span>Akshar</div>
</div>
</div>
</blockquote>
<br>
<p>I'd say that you should start by updating the OS on both host and
guest. Both OSes are heavily outdated, you lack YEARS of updates.</p>
<p><br>
</p>
<p> Regards</p>
<p><br>
</p>
<p> Manuel<br>
</p>
</div>
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</blockquote></div>