I have the same problem. I am running F 21 in a VM under VMware Fusion 7 Pro.
I'm not running xen, or any other virtual hypervisor in the VM.
But I've had the constantly orbiting green ball from vibr0 as long as I can remember.
I just added "unmanaged-devices=vibr0" to /etc/NetworkManager/NetworkManager.conf and restarted NetworkManager via systemctl. That made it stop. Thank you Laine!
However, NM shouldn't have been managing vibr0 in the first place.
I have the same problem. I am running F 21 in a VM under VMware Fusion 7 Pro.
I'm not running xen, or any other virtual hypervisor in the VM.
But I've had the constantly orbiting green ball from vibr0 as long as I can remember.
I just added "unmanaged- devices= vibr0" to /etc/NetworkMan ager/NetworkMan ager.conf and restarted NetworkManager via systemctl. That made it stop. Thank you Laine!
However, NM shouldn't have been managing vibr0 in the first place.