@joelsdc after looking closer this morning, yes in my case I do subjectively think #1172 might be related. I did have an occurrence of Kamailio stopping processing traffic. In my case these were incoming MESSAGE requests. I don't have further details as I'm now at work. This is Fedora 26, openssl-1.1.0f-7.fc26.x86_64
@miconda yes, in my case this crashes every time on stop as well.