I got the following bits after doing C-c C-c on a defpackage form with today's slime checkout; I backed things up with -D, and 2004-07-14 is the first day the problem occurs. Zach --- *slime-repl[0]* --- ; SLIME 2004-07-13 debugger invoked on a SIMPLE-ERROR in thread 7626: There is no applicable method for the generic function #<STANDARD-GENERIC-FUNCTION SWANK-BACKEND:CALL-WITH-DEBUGGING-ENVIRONMENT (0)> when called with arguments (#). You can type HELP for debugger help, or (SB-EXT:QUIT) to exit from SBCL. restarts (invokable by number or by possibly-abbreviated name): 0: [ABORT ] Abort SLIME compilation. 1: Abort handling SLIME request. 2: Reduce debugger level (leaving debugger, returning to toplevel). 3: [TOPLEVEL] Restart at toplevel READ/EVAL/PRINT loop. ((NO-APPLICABLE-METHOD (T)) #<unavailable argument> #<unavailable argument> #<STANDARD-GENERIC-FUNCTION SWANK-BACKEND:SWANK-COMPILE-STRING (0)> ("(defpackage :cl-truetype-system (:use :cl :asdf)) " :BUFFER "cl-truetype.asd" :POSITION 10)) 0] --- *slime-repl[0]* --- --- *slime-events* --- (:emacs-rex (swank:connection-info) nil t 1) (:open-dedicated-output-stream 45295) (:use-sigint-for-interrupt) (:indentation-update (("descend-into" . 1) ("number-dispatch" . 1) ("do-debug-fun-blocks" . 1) ("do-debug-block-locations" . 1) ("do-debug-fun-vars" . 1) ("bind-simple-lexical-method-macros" . 1) ("simple-lexical-method-functions" . 1) ("pv-binding1" . 1) ("bind-lexical-method-functions" . 1) ("dotimes-fixnum" . 1) ("dolist-carefully" . 1) ("fast-lexical-method-functions" . 1) ("modify-cache" . 1) ("doplist" . 2) ("bind-args" . 1) ("pv-binding" . 1) ("dfun-miss" . 1) ("bind-fast-lexical-method-macros" . 1) ("without-interrupts" . 0) ("without-scheduling" . 1) ...)) (:return (:ok (7626 "SBCL" "sbcl" (:asdf :ansi-cl :common-lisp :sbcl :unix :sb-doc :sb-test :sb-thread :ieee-floating-point :x86 :linux :gencgc :stack-grows-downward-not-upward :c-stack-is-control-stack))) 1) (:emacs-rex (swank:compile-string-for-emacs "(defpackage :cl-truetype-system\n (:use :cl :asdf))\n" "cl-truetype.asd" 10) ":cl-truetype-system" t 2) (:read-string 0 1) --- *slime-events* ---