[CentOS-virt] [QEMU-KVM] Centos guest VM freezing

Wed Jan 9 09:50:57 UTC 2019
Akshar Kanak <akshar.kanak1 at gmail.com>

Hi
Thanks for the reply

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
How can we analyse the core file generated by "virsh dump "

Thanks and regards
Akshar

On Wed, Jan 9, 2019 at 1:58 PM Manuel Wolfshant <wolfy at nobugconsulting.ro>
wrote:

> On 1/9/19 10:24 AM, Akshar Kanak wrote:
>
> Dear team
>     I am running a centos guest VM  which freezes for every few days . The
> qemu-kvm on  shows 100% cpu utilization.
>     Ping to the guest might work or may not work .Please can you tell me
> what approach can i take to debug it .
>     using "virsh dump" I can dump the core of the  guest vm but I am not
> sure how to analyse it .
>     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"
>   "CentOS Linux release 7.0.1406 (Core)"
>   1 vcpu and 2 GB ram
>
> 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"
> "CentOS release 6.5 (Final)"
> qemu-kvm package used : qemu-kvm-0.12.1.2-2.415.el6_5.10.x86_64
> Thanks and regards
> Akshar
>
>
> 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 Both OSes are heavily outdated, you lack YEARS of updates.
>
>
>     Regards
>
>
>     Manuel
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