I've got an app that I'm trying to get working again after wiping my system and installing Snow Leopard. I installed Ruby 1.9 from Macports (now a later version) and the dev server starts up just fine, but then dies on the first request, only telling me "Illegal instruction". I have no idea what's causing this or even how to go about debugging it. Does anyone have any ideas?
Got it! Appropriately enough, the error was caused by a stack overflow.