some more info
emacs -q --debug-init evaluate this: (require 'slime) (setq inferior-lisp-program "sbcl") m-x slime load some lisp code, and see the connection closed. This is reported in *Messages*: Lisp connection closed unexpectedly: connection broken by remote peer Error during redisplay: (eval (slime-modeline-string)) signaled (error "Connection closed.") [2 times] M-x slime also returns 19 warnings from the native compiler..