Where is the segfault?
Does Apache work like normal if you hit http and https ? You should be able hit the site with both before you even install the rail ssl require plugin. Mongrel does not care about if the client is talking http or https with Apache.
Does the site work like normal if you hit Mongrel direct?
Note to all those bewildered by random segfaults -- REPLACE MYSQL 5.1 WITH A PREVIOUS VERSION and then copy a older libMySQL.dll to your ruby bin directory.
Already seen here :
http://groups.google.com/group/rubyonrails-talk/browse_thread/thread/66c916fabd91406a?pli=1
http://railsforum.com/viewtopic.php?id=28080
Enjoy, it took me more than 1 month to figure out what the bleep it could be..