does it crash on other models, or just this one. stl check for mesh errors. My guess is theres a problem with your geo. I've had a modle that crashed the uvw editor before, an stl check revealed problems with the mesh. fixed problems, and no more crashes. mine was a 'double face' i believe... Hope it helps :)
select your mesh by verts *before doing turbo smooth* look for the tool stl check and then add it. after that convert to editable what ever your editing in, and it should be fixed. if not you might have a crazy edge and have to delete it and re make it not a big deal but stl check should clear up the problem