Comment 6 for bug 1722799

I was able to reproduce this issue on 2.8.0 and 2.7.1 but not in 2.5.2; some bisection later pointed to:

  https://github.com/openvswitch/ovs/commit/013ebfe62d4625afb5bc669e3a32b5a1a236a9be

however I think that just uncovers the actual issue, rather than being the root cause as that applies on all archs.