OVS uses libunwind to report backtraces when one of its daemons crash (when the --monitor options is supplied). For code details see:

https://github.com/openvswitch/ovs/blob/master/lib/backtrace.c


However libunwind is no longer supported by RHEL, and we need to come up with a replacement. Alternatives are:

- glibc's backtrace()
- elfutils/libdw

However, it's not clear if elfutils/libdw can be used to unwind an internal unwinder. Where "internal" (in process) or "external" (attach to a running process, inspect core files, etc).