Luís Oliveira luismbo@gmail.com wrote:

Can you show us more of the backtrace and your config (both the elisp side and .swank.lisp)? I suspect you may have selected a non-supported communication style. (Granted, if that's the case, SLIME should have failed more gracefully.)

This is the contents of .swank.lisp (I didn't know I had that file :-D):

(in-package :swank)

(require "asdf") (asdf:load-system :asdf)

(pushnew 'try-compile-file-with-asdf *compile-file-for-emacs-hook*)

This is my Slime initialization:

;; These ones are not customizable: (setq slime-contribs '(slime-banner slime-fancy slime-asdf slime-presentation-streams slime-highlight-edits slime-scratch slime-sprof slime-indentation) slime-scratch-file (expand-file-name ".scratch.cl" "~") slime-lisp-implementations '((sbcl ("sbcl")) (cmucl ("lisp")) (clisp ("clisp")) (ecl ("ecl")) (acl ("/Applications/AllegroCLexpress.app/Contents/Resources/alisp")) (abcl ("abcl"))) slime-default-lisp 'sbcl)

;; This is needed because SLIME-CONTRIBS normally needs to be set before ;; loading most of slime, whereas this file is an EVAL-AFTER-LOAD. (slime-setup)

My CMUCL is installed from the 21c darwin-x86 tarballs. I'm now wondering whether the inspector can't work because this is a binary distribution?

The full backtrace is given below. Inspecting anything, like #'identity, will trigger this.

Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER:Error (TYPE-ERROR) during printing: #<TYPE-ERROR {48C428CD}> [Condition of type TYPE-ERROR]

Restarts: 0: [RETRY] Retry SLIME inspection request. 1: [*ABORT] Return to SLIME's top level. 2: [ABORT] Return to Top-Level.

Backtrace: 0: (SWANK/CMUCL::MAILBOX NIL)Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 1: ((FLET SWANK/BACKEND:SEND) NIL T)Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 2: ("DEFMETHOD STREAM-WRITE-STRING (SLIME-OUTPUT-STREAM T)")Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 3: ((METHOD STREAM-WRITE-STRING NIL (SWANK/GRAY::SLIME-OUTPUT-STREAM T)) (#(2 1 3 4 0) . #(#)) #<unused-arg> #<SWANK/GRAY::SLIME-OUTPUT-STREAM {48C381A5}> "#<" ...)Type-error in KERNEL::OBJECT-NOT-TYPE-E.. 4: (LISP::WRITE-STRING* "#<" #<SWANK/GRAY::SLIME-OUTPUT-STREAM {48C381A5}> 0 2)Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 5: (LISP::%PRINT-UNREADABLE-OBJECT #<Method-Combination OR (:MOST-SPECIFIC-FIRST) {48C14D95}> #<SWANK/GRAY::SLIME-OUTPUT-STREAM {48C381A5}> T T ...)Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: N.. 6: (SWANK::CALL/TRUNCATED-OUTPUT-TO-STRING 200 #<Closure Over Function "DEFUN PREPARE-TITLE" {48C37FC1}> "..")Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PRO.. 7: (SWANK::CALL-WITH-BINDINGS ((*PRINT-LINES* . 1) (*PRINT-RIGHT-MARGIN* . 75) (*PRINT-PRETTY* . T) (*PRINT-READABLY*)) #<Closure Over Function "DEFUN PREPARE-TITLE" {48C37F41}>)Type-error in KERNEL::OBJ.. 8: (SWANK::ISTATE>ELISP #S(SWANK::ISTATE :OBJECT #<Method-Combination OR # {48C14D95}> :VERBOSE NIL :PARTS #() :ACTIONS #() :METADATA-PLIST (:SORT-ORDER # :GROUPING-KIND # :CHECKLIST ...) ...))Type-error.. 9: (SWANK::CALL-WITH-RETRY-RESTART "Retry SLIME inspection request." #<Closure Over Function "DEFSLIMEFUN INIT-INSPECTOR" {48C284D1}>)Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of t.. 10: (SWANK::CALL-WITH-BUFFER-SYNTAX NIL #<Closure Over Function "DEFSLIMEFUN INIT-INSPECTOR" {48C284C1}>)Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 11: (SWANK:EVAL-FOR-EMACS (SWANK:INIT-INSPECTOR "*") "COMMON-LISP-USER" 84)Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 12: (SWANK::PROCESS-REQUESTS T)Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 13: ("DEFUN HANDLE-REQUESTS")Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 14: ("DEFUN HANDLE-REQUESTS")Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 15: ("DEFINTERFACE CALL-WITH-DEBUGGER-HOOK" #<Function SWANK:SWANK-DEBUGGER-HOOK {48107A89}> #<Closure Over Function "DEFUN HANDLE-REQUESTS" {48C26F01}>)Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER.. 16: (SWANK::CALL-WITH-BINDINGS ((*STANDARD-INPUT* . #) (*STANDARD-OUTPUT* . #) (*TRACE-OUTPUT* . #) (*ERROR-OUTPUT* . #) (*DEBUG-IO* . #<Two-Way Stream, Input = #, Output = #>) ...)Type-error in KERNEL::O.. 17: (SWANK::HANDLE-REQUESTS #<SWANK::SINGLETHREADED-CONNECTION {49D65FFD}> T)Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 18: (SWANK::INVOKE-OR-QUEUE-INTERRUPT #<Closure Over Function "DEFUN PROCESS-IO-INTERRUPT" {48C268D1}>)Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 19: (SWANK::PROCESS-IO-INTERRUPT #<SWANK::SINGLETHREADED-CONNECTION {49D65FFD}>)Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 20: (SWANK/CMUCL::SIGIO-HANDLER #<unused-arg> #<unused-arg> #<unused-arg>)Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 21: ("OnLispStack+#x2F [#x10F00] /usr/local/bin/lisp")Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 22: ("funcall3+#x46 [#x10DA6] /usr/local/bin/lisp")Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 23: ("interrupt_handle_now+#xCE [#x828E] /usr/local/bin/lisp")Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 24: ("_sigtramp+#x2B [#xA1743E5B] /usr/lib/system/libsystem_platform.dylib")Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 25: ("Foreign function call land")Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 26: (LISP::SUB-SERVE-EVENT 1 0)Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 27: (SYSTEM:WAIT-UNTIL-FD-USABLE 0 :INPUT NIL)Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 28: (LISP::DO-INPUT #<Stream for Standard Input>)Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 29: ("PRECOMPILE-EF-SLOT ISO8859-1" #<Stream for Standard Input> NIL (LISP::*EOF*))Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 30: (LISP::SYNONYM-IN #<Synonym Stream to SYSTEM:*STDIN*> NIL (LISP::*EOF*))Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 31: (LISP::TWO-WAY-IN #<Two-Way Stream, Input = #<Synonym Stream to SYSTEM:*STDIN*>, Output = #<Synonym Stream to SYSTEM:*STDOUT*>> NIL (LISP::*EOF*))Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: .. 32: (READ-CHAR #<Two-Way Stream, Input = #<Synonym Stream to SYSTEM:*STDIN*>, Output = #<Synonym Stream to SYSTEM:*STDOUT*>> NIL (LISP::*EOF*) NIL)Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL.. 33: (LISP::READ-PRESERVING-WHITESPACE-INTERNAL #<Two-Way Stream, Input = #<Synonym Stream to SYSTEM:*STDIN*>, Output = #<Synonym Stream to SYSTEM:*STDOUT*>> NIL (:EOF) T)Type-error in KERNEL::OBJECT-NOT-T.. 34: (LISP::READ-PRESERVING-WHITESPACE-INTERNAL #<Two-Way Stream, Input = #<Synonym Stream to SYSTEM:*STDIN*>, Output = #<Synonym Stream to SYSTEM:*STDOUT*>> NIL (:EOF) NIL)Type-error in KERNEL::OBJECT-NOT.. 35: (LISP::READ-PRESERVING-WHITESPACE-INTERNAL 4 #<Two-Way Stream, Input = #<Synonym Stream to SYSTEM:*STDIN*>, Output = #<Synonym Stream to SYSTEM:*STDOUT*>> NIL (:EOF) ...)Type-error in KERNEL::OBJECT-N.. 36: (LISP::READ-INTERNAL #<Two-Way Stream, Input = #<Synonym Stream to SYSTEM:*STDIN*>, Output = #<Synonym Stream to SYSTEM:*STDOUT*>> NIL (:EOF) NIL)Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: .. 37: (READ #<Two-Way Stream, Input = #<Synonym Stream to SYSTEM:*STDIN*>, Output = #<Synonym Stream to SYSTEM:*STDOUT*>> NIL (:EOF) NIL)Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of t.. 38: (LISP::%TOP-LEVEL)Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS 39: ((LABELS LISP::RESTART-LISP SAVE-LISP))Type-error in KERNEL::OBJECT-NOT-TYPE-ERROR-HANDLER: NIL is not of type MULTIPROCESSING::PROCESS

Have you trying updating from git? On Mon, Jan 29, 2018 at 1:09 PM Didier Verna didier@lrde.epita.fr wrote:

Luís Oliveira luismbo@gmail.com wrote:

...

Can you show us more of the backtrace and your config (both the elisp side and .swank.lisp)? I suspect you may have selected a non-supported communication style. (Granted, if that's the case, SLIME should have failed more gracefully.)

FWIW, I've tried all communication styles this morning, and none of them work. :SPAWN hangs, and the other ones lead to the exact same error as with :SIGIO (the one I used without even knowing it as it is the default).

-- Resistance is futile. You will be jazzimilated.

Lisp, Jazz, Aïkido: http://www.didierverna.info

Again, have you tried updating from git?

On Mon, Jan 29, 2018 at 1:35 PM Didier Verna didier@lrde.epita.fr wrote:

I wrote:

...

FWIW, I've tried all communication styles this morning, and none of them work. :SPAWN hangs, and the other ones lead to the exact same error as with :SIGIO (the one I used without even knowing it as it is the default).

Now I've bisected some recent commits, and I found the culprit. Before this one, everything works fine.

commit 2e7f94633acebd5cf4074ce9601b021624ad8233 Author: Stas Boukarev stassats@gmail.com Date: Thu Jan 11 15:29:00 2018 +0300

More energy efficient auto-flush-loop.

Don't spin until there's something to flush.

-- Resistance is futile. You will be jazzimilated.

Lisp, Jazz, Aïkido: http://www.didierverna.info

Luís Oliveira luismbo@gmail.com wrote:

On Mon, Jan 29, 2018 at 11:10 AM, Stas Boukarev stassats@gmail.com wrote:

...

Again, have you tried updating from git?

Precisely, https://github.com/slime/slime/commit/ae3b7e7ed63a850e9cb5130e0ca5544150d741... is where Stas has probably fixed the issue you're seeing, Didier.

Indeed, I was missing this last commit when I bisected. It seems to work again now, thanks!