Hi all,
I'm seeing the same problem
The system is running stretch, it is an NFS client with OVS networking
I also intermittently assist in maintaining Debian's NFS packages but
this problem doesn't look like it relates to the NFS package.
Here is my /etc/network/interfaces
auto lo
iface lo inet loopback
auto ovsbr0
iface ovsbr0 inet dhcp
ovs_type OVSBridge
ovs_ports eth0
iface ovsbr0 inet6 dhcp
accept_ra 1
ovs_type OVSBridge
ovs_ports eth0
allow-ovsbr0 eth0
iface eth0 inet manual
ovs_bridge ovsbr0
ovs_type OVSPort
Regards,
Daniel