[openstack-dev] openstack-dev] [nova] Cannot live migrattion, because error:libvirtError: the CPU is incompatible with host CPU: Host CPU does not provide required features: cmt, mbm_total, mbm_local

Chris Friesen chris.friesen at windriver.com
Mon May 14 12:39:16 UTC 2018

On 05/13/2018 09:23 PM, 何健乐 wrote:
> Hi, all
> When I did live-miration , I met the following error: |result 
> ||=||proxy_call(||self||._autowrap, f, ||*||args, ||*||*||kwargs)|

> |May ||14| |10||:||33||:||11| |nova||-||compute[||981335||]: ||File| 
> |"/usr/lib64/python2.7/site-packages/libvirt.py"||, line ||1939||, ||in| 
> |migrateToURI3|
> |May ||14| |10||:||33||:||11| |nova||-||compute[||981335||]: ||if| |ret 
> ||=||=| |-||1||: ||raise| |libvirtError (||'virDomainMigrateToURI3() 
> failed'||, dom||=||self||)|
> |May ||14| |10||:||33||:||11| |nova||-||compute[||981335||]: libvirtError: the 
> CPU ||is| |incompatible with host CPU: Host CPU does ||not| |provide required 
> features: cmt, mbm_total, mbm_local|

> Is there any one that has solution for this problem.
> Thanks

Can you run "virsh capabilities" and provide the "cpu" section for both the 
source and dest compute nodes?  Can you also provide the "cpu_mode", 
"cpu_model", and "cpu_model_extra_flags" options from the "libvirt" section of 
/etc/nova/nova.conf on both compute nodes?

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