slime + clisp + emacs: server disconnects

[Stas Boukarev]

It says that Clisp crashes with a segfault, nothing to do with slime.

On Tue, Jul 23, 2019 at 4:30 PM Stuart Little <achirvasub at gmail.com> wrote:
>
> I am running
>
> - emacs 26.2
> - slime 2.24
> - clisp 2.49
>
> on Linux.
>
> Running M-x slime in emacs with 'inferior-lisp-program' set to 'clisp' starts slime fine. I can usually run one evaluation (like say (+ 2 3)), whereupon any other action (pressing 'enter', say) will result in a disconnect:
>
> Lisp connection closed unexpectedly: connection broken by remote peer
>
> The inferior-lisp buffer reads as follows after the disconnect:
>
> --- buffer starts ---
>
> (progn (load "/home/chirvasitua/quicklisp/dists/quicklisp/software/slime-v2.24/swank-loader.lisp" :verbose t) (funcall (read-from-string "swank-loader:init") :from-emacs t) (funcall (read-from-string "swank:start-server") "/tmp/slime.19223"))
>
>   i i i i i i i       ooooo    o        ooooooo   ooooo   ooooo
>   I I I I I I I      8     8   8           8     8     o  8    8
>   I  \ `+' /  I      8         8           8     8        8    8
>    \  `-+-'  /       8         8           8      ooooo   8oooo
>     `-__|__-'        8         8           8           8  8
>         |            8     o   8           8     o     8  8
>   ------+------       ooooo    8oooooo  ooo8ooo   ooooo   8
>
> Welcome to GNU CLISP 2.49 (2010-07-07) <http://clisp.cons.org/>
>
> Copyright (c) Bruno Haible, Michael Stoll 1992, 1993
> Copyright (c) Bruno Haible, Marcus Daniels 1994-1997
> Copyright (c) Bruno Haible, Pierpaolo Bernardi, Sam Steingold 1998
> Copyright (c) Bruno Haible, Sam Steingold 1999-2000
> Copyright (c) Sam Steingold, Bruno Haible 2001-2010
>
> Type :h and hit Enter for context help.
>
> [1]>
> ;; Loading file /home/chirvasitua/quicklisp/dists/quicklisp/software/slime-v2.24/swank-loader.lisp ...
> ;; Loaded file /home/chirvasitua/quicklisp/dists/quicklisp/software/slime-v2.24/swank-loader.lisp
> ;; Loading file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/packages.fas ...
> ;; Loaded file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/packages.fas
> ;; Loading file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/backend.fas ...
> ;; Loaded file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/backend.fas
> ;; Loading file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/xref.fas ...
> ;; Loaded file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/xref.fas
> ;; Loading file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/metering.fas ...
> ;; Loaded file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/metering.fas
> ;; Loading file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/clisp.fas ...
> WARNING: DEFUN/DEFMACRO: redefining function BREAK in
>          /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/clisp.fas,
>          was defined in /builddir/clisp-2.49/src/condition.fas
> WARNING: Replacing method #<STANDARD-METHOD (#<BUILT-IN-CLASS T>)> in
>          #<STANDARD-GENERIC-FUNCTION EMACS-INSPECT>
> ;; Loaded file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/clisp.fas
> ;; Loading file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/gray.fas ...
> WARNING: The generic function #<STANDARD-GENERIC-FUNCTION STREAM-LINE-COLUMN>
>          is being modified, but has already been called.
> WARNING: The generic function #<STANDARD-GENERIC-FUNCTION STREAM-FORCE-OUTPUT>
>          is being modified, but has already been called.
> WARNING: The generic function #<STANDARD-GENERIC-FUNCTION STREAM-LINE-COLUMN>
>          is being modified, but has already been called.
> ;; Loaded file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/gray.fas
> ;; Loading file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/match.fas ...
> ;; Loaded file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/match.fas
> ;; Loading file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/rpc.fas ...
> ;; Loaded file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/rpc.fas
> ;; Loading file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/swank.fas ...
> ;; Loaded file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/swank.fas
> 0 errors, 5 warnings
> ;; Swank started at port: 41975.
> CL-USER>
> ;; Loading file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/contrib/swank-trace-dialog.fas ...
> ;; Loaded file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/contrib/swank-trace-dialog.fas
> ;; Loading file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/contrib/swank-package-fu.fas ...
> ;; Loaded file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/contrib/swank-package-fu.fas
> ;; Loading file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/contrib/swank-presentations.fas ...
> ;;  Loading file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/contrib/swank-repl.fas ...
> WARNING: The generic function
>          #<STANDARD-GENERIC-FUNCTION THREAD-FOR-EVALUATION> is being modified,
>          but has already been called.
> WARNING: Replacing method
>           #<STANDARD-METHOD
>             (#<STRUCTURE-CLASS MULTITHREADED-CONNECTION> (EQL :FIND-EXISTING))>
>          in #<STANDARD-GENERIC-FUNCTION THREAD-FOR-EVALUATION>
> ;;  Loaded file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/contrib/swank-repl.fas
> ;; Loaded file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/contrib/swank-presentations.fas
> ;; Loading file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/contrib/swank-macrostep.fas ...
> ;; Loaded file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/contrib/swank-macrostep.fas
> ;; Loading file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/contrib/swank-fuzzy.fas ...
> ;;  Loading file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/contrib/swank-util.fas ...
> ;;  Loaded file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/contrib/swank-util.fas
> ;;  Loading file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/contrib/swank-c-p-c.fas ...
> ;;  Loaded file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/contrib/swank-c-p-c.fas
> ;; Loaded file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/contrib/swank-fuzzy.fas
> ;; Loading file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/contrib/swank-fancy-inspector.fas ...
> ;; Loaded file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/contrib/swank-fancy-inspector.fas
> ;; Loading file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/contrib/swank-arglists.fas ...
> WARNING: Test failed: (&KEY #'#'+) => "(&key (function  #'+))"
>          Expected: One of: "(&key (function #'+))", "(&key (function (function
>          +)))"
> ;; Loaded file /home/chirvasitua/.slime/fasl/2.24/clisp-2.49-unix-pc386/contrib/swank-arglists.fas
>
> Process inferior-lisp segmentation fault
>
> --- buffer ends ---
>
> More information:
>
> - starting clisp in a terminal all on its own seems to work fine; I haven't had segmentation faults using it in isolation from slime.
>
> - I tried to start the server from within clisp and connect to it:
>
> (a) rlwrap clisp
> (b) (load "~/quicklisp/dists/quicklisp/software/slime-v2.24/swank-loader.lisp")
> (c) (swank-loader::init :reload t)
> (d) (swank:create-server :port 7000)
> (e) from within emacs: M-x slime-connect with localhost and port 7000
>
> Same behavior as before: I get connected, get to make a few evaluations, get disconnected.
>
> This time around rlwrap tells me (in the terminal where I started clisp):
>
> rlwrap: warning: clisp crashed, killed by SIGSEGV
>