[Users] 6.4 CR: oVirt 3.1 breaks with missing cpu features after update to CentOS 6.4 (6.3 + CR)
Patrick Hurrelmann
patrick.hurrelmann at lobster.de
Mon Mar 11 09:39:46 UTC 2013
>> Alright, just verified it. A vm started on a 6.3 host can be
>> successfully migrated to the new 6.4 host and then back to any other 6.3
>> host. It just won't migrate a vm started on 6.4 to any host running 6.3.
>
> This surprises me. Engine should have used the same emulatedMachine
> value, independent of the initial host. Could you share the vdsm.log
> lines mentionioning "emulatedMachine" in both cases?
>
> Dan.
Hi Dan,
sorry for coming back this late. I checked it and the default
emulatedMachine is pc. And machine pc differs in the definition between
6.3 and 6.4.
virsh 6.3:
<guest>
<os_type>hvm</os_type>
<arch name='x86_64'>
<wordsize>64</wordsize>
<emulator>/usr/libexec/qemu-kvm</emulator>
<machine>rhel6.3.0</machine>
<machine canonical='rhel6.3.0'>pc</machine>
<machine>rhel6.2.0</machine>
<machine>rhel6.1.0</machine>
<machine>rhel6.0.0</machine>
<machine>rhel5.5.0</machine>
<machine>rhel5.4.4</machine>
<machine>rhel5.4.0</machine>
<domain type='qemu'>
</domain>
<domain type='kvm'>
<emulator>/usr/libexec/qemu-kvm</emulator>
</domain>
</arch>
<features>
<cpuselection/>
<deviceboot/>
<acpi default='on' toggle='yes'/>
<apic default='on' toggle='no'/>
</features>
</guest>
virsh 6.4:
<guest>
<os_type>hvm</os_type>
<arch name='x86_64'>
<wordsize>64</wordsize>
<emulator>/usr/libexec/qemu-kvm</emulator>
<machine>rhel6.4.0</machine>
<machine canonical='rhel6.4.0'>pc</machine>
<machine>rhel6.3.0</machine>
<machine>rhel6.2.0</machine>
<machine>rhel6.1.0</machine>
<machine>rhel6.0.0</machine>
<machine>rhel5.5.0</machine>
<machine>rhel5.4.4</machine>
<machine>rhel5.4.0</machine>
<domain type='qemu'>
</domain>
<domain type='kvm'>
<emulator>/usr/libexec/qemu-kvm</emulator>
</domain>
</arch>
<features>
<cpuselection/>
<deviceboot/>
<acpi default='on' toggle='yes'/>
<apic default='on' toggle='no'/>
</features>
</guest>
Regards
Patrick
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