Hi, we have upgrade the Cluster (and all Hosts) to oVirt 4.4 and Oracle Linux 8.5 After the Upgrade, we cannot migrate VMs from one Host to another (same Cluster). oVirt stock, and on Hosts Tab we see the message (one the vm): "VM-CPU dosent match the Cluster-CPU". We checked the xml config from kvm We checked the DB for Cluster-CPU and VM-CPU - its the same (Cascadelake-Server-noTSX,-mpx). select name, cpu_name, cpu_flags from cluster; name | cpu_name | cpu_flags --------------------------+----------------------------------------+------------------------------------ TestMigrationCluster | Intel Haswell Family | vmx,nx,model_Haswell-noTSX select vm_guid, vm_name, cpu_name from vms where vm_name='oVirtTest'; vm_guid | vm_name | cpu_name --------------------------------------+-----------+--------------- 421ade0f-4d76-941d-3de2-13b1df54c89d | oVirtTest | Haswell-noTSX We create a new "TestMigrationCluster" with two Hosts for better testing. We reinstall the Hosts (OS + ovirt) = failed We reset the manager to an older State = failed We have no idea where the "Cluster-CPU check" is running? We search for a ansible role or play but nothing found Have anybody a idea where the Cluster CPU check is? Thanks & Regards Fabian