And some more testing:
xenial: ovs 2.8.1 + 4.4 - OK xenial: ovs 2.8.1 + 4.10 - OK
so the issue appears to be the combination of ovs 2.8.1 (and 2.8.0) with the 4.13 kernel.
And some more testing:
xenial: ovs 2.8.1 + 4.4 - OK
xenial: ovs 2.8.1 + 4.10 - OK
so the issue appears to be the combination of ovs 2.8.1 (and 2.8.0) with the 4.13 kernel.