[slime-devel] help: swank + acl81_express refuses to start in CVS emacs

[Madhu]

There is nothing Allegro specific about this. On the box with the latest
CVS emacs where I am observing this the behaviour, the error occurs with
CLISP and CMUCL as well.

* Madhu <m3ej1bnhv9.fsf at moon.robolove.meer.net> :
Wrote on Mon, 17 Nov 2008 09:06:42 +0530:

| I noticed this problem only in emacs 23.0.60 (not 22.1) and allegro
| express 8.1 on linux:

| ,---- In the *inferior-lisp* buffer:
| | (progn (load "~/path/to/slime/swank-loader.lisp" :verbose t) (funcall (read-from-string "swank-loader:init")) (funcall (read-from-string "swank:start-server") "/tmp/slime.12688" :coding-system "iso-latin-1-unix"))
| | 
| | International Allegro CL Free Express Edition
| | 8.1 (Linux (x86)) (Jun 29, 2008 13:34)
| | Copyright (C) 1985-2007, Franz Inc., Oakland, CA, USA.  All Rights
| | Reserved.
| | 
| | [snip]
| | 
| | ;; Swank started at port: 40835.
| | 40835
| | CL-USER(2): CL-USER(2):
| | 
| | ;; swank:close-connection: eof encountered on stream
| |                            #<MULTIVALENT stream socket connected from
| |                              localhost/40835 to localhost/46300 @
| |                              #x7158daaa>
| `----
|
| Allegro drops the connection as soon as emacs connects.

I meant SWANK drops the connection as it is reading an EOF

|
| ,---- And in Emacs:
| | Debugger entered: (("Error in timer" slime-attempt-connection (#<process inferior-lisp> nil 2) (file-error "make client process failed" "connection refused" :name "SLIME Lisp" :buffer nil :host "127.0.0.1" :service 56408)))
| |   (condition-case data (apply fun args) (error (debug nil ...)))
| |   slime-timer-call(slime-attempt-connection #<process inferior-lisp> nil 2)
| |   apply(slime-timer-call (slime-attempt-connection #<process inferior-lisp> nil 2))
| |   byte-code("[snip]" [timer apply 5 6] 4)
| |   timer-event-handler([t 18720 56375 253953 0.3 slime-timer-call (slime-attempt-connection #<process inferior-lisp> nil 2) nil])
| `----
|
| [The probem persists after updating patches for ACL (including the aug
|  27 base patch).  The problem was not observed in the ACL 8.1 release
|  from 2007 (but as that distribution is unavailable, I am not able to
|  check).]
|
| The calls at allegro probably looks like:
          stack

|
|    (ERROR END-OF-FILE :STREAM ...)
|    ((:EFFT DC-READ-CHAR :LATIN1-BASE) :UNKNOWN :UNKNOWN ...)
|    (SWANK::DECODE-MESSAGE
|       #<MULTIVALENT stream socket connected from localhost/43977 to
|         localhost/55570 @ #x7158963a>)
|
| I've ensured consistent coding systems between emacs and slime, I am
| stumped at finding a workaround, so I am soliciting suggestions
|
| --
| Madhu