@Daniel, I've broken down the ovn-controller crash further. Testing in both a networking-ovn Vagrant and DevStack environment, if I restart the ovsdb-server for the SB DB then ovn-controller on all compute nodes will crash. Ryan Moats mentioned that he is seeing possible "port/string corruption which could lead to the ovn-controller process segfaulting". He was planning to investigate further.
@Daniel, I've broken down the ovn-controller crash further. Testing in both a networking-ovn Vagrant and DevStack environment, if I restart the ovsdb-server for the SB DB then ovn-controller on all compute nodes will crash. Ryan Moats mentioned that he is seeing possible "port/string corruption which could lead to the ovn-controller process segfaulting". He was planning to investigate further.