This occurs about once every 20 runs (rough estimate). Happened twice last sunday, once today.
Using SDLGL-PP renderer.
Crash report of today’s crash attached. Also here: http://pastebin.com/TwyJxa6L . Note it created like two dozen of them (trying to recover probably).
Here’s the one from last Sunday http://pastebin.com/CQdzpfG5
Not encountered since I installed the OS X 10.10.1 update, so closing with the assumption that it was a graphics driver issue in OS X 10.10.0.