I recently tried to install OpenvSwitch on FreeBSD 12.0-RELEASE-p4 kernel, 12.0-RELEASE-p5 userland. I found that after applying a configuration and doing a system restart my configuration does not survive. When I login to the system I do not have any vSwitch configuration applied. After digging around on the FreeBSD forums I found this post where someone mentioned that OpenvSwitch is conflicting with libc. https://forums.freebsd.org/threads/problem-with-openvswitch.67792/#post-428756 Based on that I started digging around in the ports tree. I found the Makefile for OpenvSwitch is setup to configure with shared libraries. I found that if I compile OpenvSwitch with static libraries the conflict with libc is resolved since the function that OpenvSwitch is trying to use is statically linked. I was able to test that after upgrading my configuration of the vSwitch(es) survives a system restart. I did not test anymore beyond that since the lack of a kernelspace module makes this not suitable for my needs. Here is a walkthrough of what I did; https://forums.freebsd.org/threads/a-possible-solution-to-fix-open-vswitch.71016/?fbclid=IwAR1NdhHduR3XKTMGBc2DmuruoE1lejjIcZeVUYukurk0my48YcAWoLf9aIY
Created attachment 204836 [details] openvswitch 2.11.1 static patch Enable static libraries. Poudriere logs look OK. While here fix portlint warnings.