[Pkg-libvirt-maintainers] Bug#830857: Bug#830857: libvirt-daemon: CPU feature cmt not found

[Ansgar Hegerfeld]

Okay, thanks. I opened a bugreport upstream:
https://bugzilla.redhat.com/show_bug.cgi?id=1355857

Best Regards,
Ansgar

Am 12.07.2016 um 19:21 schrieb Guido Günther:
> On Tue, Jul 12, 2016 at 12:13:13PM +0200, Ansgar Hegerfeld wrote:
>> Package: libvirt-daemon
>> Version: 2.0.0-1
>> Severity: normal
>>
>> Dear Maintainer,
>>
>> after upgrading libvirt-daemon from 1.3.5-1 to 2.0.0-1 I am unable to start
>> a virtual machine which is configured with these CPU settings:
>>
>> <domain type='kvm'>
>>   <name>foobar</name>
>>   <uuid>05a431db-0927-4ce2-8fb9-2830c962fa2d</uuid>
>>   <memory unit='KiB'>1048576</memory>
>>   <currentMemory unit='KiB'>1048576</currentMemory>
>>   <vcpu placement='static'>4</vcpu>
>>   <resource>
>>     <partition>/machine</partition>
>>   </resource>
>>   <os>
>>     <type arch='x86_64' machine='pc-i440fx-2.1'>hvm</type>
>>     <bootmenu enable='yes'/>
>>   </os>
>>   <features>
>>     <acpi/>
>>     <apic/>
>>     <pae/>
>>   </features>
>>   <cpu mode='host-model'>
>>     <model fallback='allow'/>
>>   </cpu>
>> [...]
>>
>> Important is the <cpu mode='host-model'>. With libvirt-daemon 1.3.5-1 this
>> worked just fine but now you receive an error like this after turning a
>> machine (which was live migrated to the updated host) off and on again:
>>
>> "qemu-system-x86_64: CPU feature cmt not found"
> That's kind of expected, see:
>
>     http://www.spinics.net/linux/fedora/libvir/msg132822.html
>
> I'd recommend to take this upstream though (since it breaks backward
> compat), since I won't be able to do this for quiet some time.
>
> Cheers,
>  -- Guido