I am running OpenNebula on Centos 7 hosts - one host is fully operating the other two says:
error: unsupported configuration: CPU tuning is not available on this host
I've got through some git code where this is mentioned in qemu_cgroup - but everything on those hosts seems same except kernel which is little bit different on running host:
3.10.0-123.6.3.el7.x86_64
but on those two nodes is
3.10.23-xxxx-std-ipv6-64
Thanks for help.