[PVE-User] Windows 2003 crash with PVE 2.1

[Alain Péan]

Le 15/05/2012 16:37, Alain Péan a écrit :
> Le 15/05/2012 10:25, lst_hoe02 at kwsoft.de a écrit :
>>
>> Zitat von Alain Péan <alain.pean at lpp.polytechnique.fr>:
>>
>>> Le 15/05/2012 10:03, lst_hoe02 at kwsoft.de a écrit :
>>>> Hm, now tested on a second PVE 2.1 box with AMD Processor and it 
>>>> works...
>>>> Any idea what is going wrong or is this even supported?
>>>
>>> On 1.9, was it also an AMD processor ?
>>
>> Yes, but to my knowledge it should be possible to move W2K3 from AMD 
>> to Intel or vice-versa. I have also double checked that no AMD 
>> specific software is installed and in fact beside IIS nearly nothing 
>> is installed on this box.
>>
>
> Hi Andreas,
>
> I just verified, I remembered there were problems to migrate between 
> Intel and AMD CPU, and this seems indeed the case. See for example :
> http://serverfault.com/questions/226547/kvm-live-migration-between-intel-and-amd-processors 
>
>
> So, I fear you can only install your VM on an AMD based server, or you 
> have to migrate again your physical server to an Intel CPU based 
> server...
>

I did further researchs, and the situation is a bit more complicated 
than I thought. The KVM FAQ explicitly says it is possible to migrate 
between AMD and Intel :
http://www.linux-kvm.org/page/FAQ#Does_KVM_support_live_migration_from_an_AMD_host_to_an_Intel_host_and_back.3F

But, the RHEL documentation says it is not possible :
http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization_Host_Configuration_and_Guest_Installation_Guide/chap-Virtualization_Host_Configuration_and_Guest_Installation_Guide-Virtualization_Restrictions.html

As Proxmox uses a RHEL kernel patched for OpenVZ, it is perhaps not 
possible with this kernel...

Alain


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