[CentOS-virt] [QEMU-KVM] Centos guest VM freezing
wolfy at nobugconsulting.ro
Wed Jan 9 10:00:31 UTC 2019
On 1/9/19 11:50 AM, Akshar Kanak wrote:
> Thanks for the reply
> We have seen the same guest VM freezing on vmware ESXi machine also ,
No wonder given that the guest remains 5 years out of date even when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years out of date.
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...
> 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 "
http://bfy.tw/LhMS might help with that
> Thanks and regards
> On Wed, Jan 9, 2019 at 1:58 PM Manuel Wolfshant
> <wolfy at nobugconsulting.ro <mailto: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
> 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 Both OSes are heavily outdated, you lack YEARS of updates.
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