[libvirt-users] trouble after upgrading from 3.0.0 to 3.1.0

HI! After the last OS update (openSUSE Tumbleweed) with libvirt being updated from 3.0.0 to 3.1.0 starting the VMs (qemu-kvm) does not work anymore: error: internal error: child reported: Kernel does not provide mount namespace: Permission denied Kernel was updated before to 4.10.1 and worked just fine with libvirt 3.0.0 packages. Any clue how to work around that? Ciao, Michael.