Comment 14 for bug 1791989

I suspected that it may be some issue with packages like libvirt, qemu or openvswitch but as same issue happens also on patches for stable/pike branch (see http://logs.openstack.org/48/603048/1/check/neutron-grenade-dvr-multinode/8686b27/logs/) and all those packages are in different versions then on master I think that it's something else.