10:04 a.m.
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On 03/28/2017 01:50 PM, Michal Skrivanek wrote:
=20
> On 28 Mar 2017, at 13:41, Ji=C5=99=C3=AD Sl=C3=A9=C5=BEka <jiri.slezka=
@slu.cz> wrote:
>
> On 03/28/2017 12:34 AM, Ji=C5=99=C3=AD Sl=C3=A9=C5=BEka wrote:
>> Hi all,
>>
>> I have just upgraded ovirt manager from 4.1.0 to 4.1.1, then I have
>> upgraded one host. After reboot and activation of this host some vms
>> started to migrate here.
>>
>> Some time after migration CPU of this vms go to 100% and vms become
>> unreachable.
>>
>> There is /var/log/libvirt/qemu/hypnos.log (hypnos is one of this vms)=
>> https://pastebin.com/U30xfBMJ
>>
>> Powering off and starting again solve this but I would like to have a=
>> glue what is happening.
>>
>> I suspect this line
>>
>> 2017-03-27T22:09:23.746710Z qemu-kvm: warning: TSC frequency mismatch=
>> between VM (2600031 kHz) and host (2100024 kHz), and TSC
scaling unav=
ailable
>>
>> Original host uses "AMD Opteron(TM) Processor 6238" with "cpu
MHz:
>> 2600.113" and upgraded host uses "AMD Opteron(tm) Processor 6172"
wit=
h
>> "cpu MHz: 2100.097".
>
> It looks like it isn't problem with 4.1.1 at all.
>
> There is just missing tsc_scale cpu flag on our older AMD CPUs...
>
> http://unix.stackexchange.com/questions/296636/100-cpu-utilisation-and=
-hang-after-virsh-migrate
>
> This is probably unsolvable hw problem, right?
=20
And this is without host-model CPU type?
That 6172 should be Opteron G3=E2=80=A6is that what you have set in you=
r
Cluster?
Yes, Cluster CPU type is set to AMD Opteron G3. 6172 should be G3 (we
have 3 of 4 hosts in this cluster with 6172 CPU), 6238 is probably G4
but forced (I hoped) to G3.
Problem occurs only when migrating from 6238 CPU to 6172.
Cheers,
Jiri
=20
Thanks,
michal
=20
>
> Cheers,
>
> Jiri
>
>>
>> Cheers,
>>
>> Jiri
>>
>>
>>
>> _______________________________________________
>> Users mailing list
>> Users(a)ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>
>
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
=20
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