@themsley-voiceflex - I am able to reproduce OpenSSL crashes now with EL9 + OpenSSL 3. I thought this had been fixed with the pthread locking work but it seems more complicated than that.
To isolate the problem I have created a build kamailio of 5.7.2/EL9 with a `tls_wolfssl` subpackage for testing here: https://copr.fedorainfracloud.org/coprs/beaveryoga/Kamailio/
Usage: replace `tls.so` in the config file with `tls_wolfssl.so`; comment out the `init_mode` param setting as this is not used by `tls_wolfssl`.
Disclaimer: this is for testing purposes *ONLY*; it's on Copr as I haven't figured out openSUSE OBS yet.