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<div class="moz-cite-prefix">On 1/9/19 11:50 AM, Akshar Kanak wrote:<br>
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<blockquote type="cite"
cite="mid:CALh=J_dUrnus8DFPgvgkA1b=RKr7JmgFJhHUaQ4H-rc9vJnDiQ@mail.gmail.com">
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<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 , </div>
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<p>No wonder given that the guest remains 5 years out of date even
when using a different hypervisor. Leaving aside that also the
long-term kernel installed from ElRepo that you are using is also
more then 4 years out of date.<br>
</p>
<p>Please update the OS(es) to the current supported OS versions (
that is, 7.6 / 6.10 ) and verify if the problems persist. But
you've already been told that by several persons...<br>
</p>
<p><br>
</p>
<blockquote type="cite"
cite="mid:CALh=J_dUrnus8DFPgvgkA1b=RKr7JmgFJhHUaQ4H-rc9vJnDiQ@mail.gmail.com">
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<div>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>
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</blockquote>
<p><a class="moz-txt-link-freetext" href="http://bfy.tw/LhMS">http://bfy.tw/LhMS</a> might help with that</p>
<p><br>
</p>
<p>Regards,</p>
<p> manuel<br>
</p>
<p><br>
</p>
<p><br>
</p>
<blockquote type="cite"
cite="mid:CALh=J_dUrnus8DFPgvgkA1b=RKr7JmgFJhHUaQ4H-rc9vJnDiQ@mail.gmail.com">
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<div><br>
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<div>Thanks and regards</div>
<div>Akshar</div>
</div>
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<div class="gmail_quote">
<div dir="ltr">On Wed, Jan 9, 2019 at 1:58 PM Manuel Wolfshant
<<a href="mailto:wolfy@nobugconsulting.ro"
moz-do-not-send="true">wolfy@nobugconsulting.ro</a>>
wrote:<br>
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0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<div class="gmail-m_1451368386468163067moz-cite-prefix">On
1/9/19 10:24 AM, Akshar Kanak wrote:<br>
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<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>
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