list-process strange error

list-process strange error

[Lennart Borgman]

I just got this very strange error when trying to do "M-x list-processes":

Debugger entered--Lisp error: (wrong-type-argument char-or-string-p
("c:/Perl/site/bin/perly_sense.pl" "flymake_file"
"--file=bug495770-heredoc_demo_flymake.pl"))
  list-processes(nil)
  call-interactively(list-processes t nil)
  execute-extended-command(nil)
  call-interactively(execute-extended-command nil nil)

Anyone has any idea what this could be?

A possibility is that some resource is exhausted on w32. I think some
checks are lacking there and I see very strange things because of this
sometimes. It is probably related to GDI objects which gets exhausted,
but I am not sure. (That GDI objects gets exhausted is a long standing
bug in Windows XP.)

Re: list-process strange error

[Eli Zaretskii]

> From: Lennart Borgman <lennart.borgman@gmail.com>
> Date: Sat, 24 Apr 2010 01:14:43 +0200
> 
> I just got this very strange error when trying to do "M-x list-processes":
> 
> Debugger entered--Lisp error: (wrong-type-argument char-or-string-p
> ("c:/Perl/site/bin/perly_sense.pl" "flymake_file"
> "--file=bug495770-heredoc_demo_flymake.pl"))
>   list-processes(nil)
>   call-interactively(list-processes t nil)
>   execute-extended-command(nil)
>   call-interactively(execute-extended-command nil nil)
> 
> Anyone has any idea what this could be?

Well, it seems Emacs expects a string, but gets a list of strings.

Re: list-process strange error

[Lennart Borgman]

On Sat, Apr 24, 2010 at 8:25 AM, Eli Zaretskii <eliz@gnu.org> wrote:
>> From: Lennart Borgman <lennart.borgman@gmail.com>
>> Date: Sat, 24 Apr 2010 01:14:43 +0200
>>
>> I just got this very strange error when trying to do "M-x list-processes":
>>
>> Debugger entered--Lisp error: (wrong-type-argument char-or-string-p
>> ("c:/Perl/site/bin/perly_sense.pl" "flymake_file"
>> "--file=bug495770-heredoc_demo_flymake.pl"))
>>   list-processes(nil)
>>   call-interactively(list-processes t nil)
>>   execute-extended-command(nil)
>>   call-interactively(execute-extended-command nil nil)
>>
>> Anyone has any idea what this could be?
>
> Well, it seems Emacs expects a string, but gets a list of strings.


Yes, you are right. I think the strange data comes from my attempt to
tame PerlySense to work on w32.

I happened to call (via flymake) start-process with bad data. I am
surprised that these entered into the data structures of list-process
and stayed there. There must be a bug there on w32.

What I did was esssentially that I made the argument PROGRAM-ARGS of
start-process into a list.

Re: list-process strange error

[Lennart Borgman]

On Sat, Apr 24, 2010 at 11:22 AM, Lennart Borgman
<lennart.borgman@gmail.com> wrote:
> On Sat, Apr 24, 2010 at 8:25 AM, Eli Zaretskii <eliz@gnu.org> wrote:
>>> From: Lennart Borgman <lennart.borgman@gmail.com>
>>> Date: Sat, 24 Apr 2010 01:14:43 +0200
>>>
>>> I just got this very strange error when trying to do "M-x list-processes":
>>>
>>> Debugger entered--Lisp error: (wrong-type-argument char-or-string-p
>>> ("c:/Perl/site/bin/perly_sense.pl" "flymake_file"
>>> "--file=bug495770-heredoc_demo_flymake.pl"))
>>>   list-processes(nil)
>>>   call-interactively(list-processes t nil)
>>>   execute-extended-command(nil)
>>>   call-interactively(execute-extended-command nil nil)
>>>
>>> Anyone has any idea what this could be?
>>
>> Well, it seems Emacs expects a string, but gets a list of strings.
>
>
> Yes, you are right. I think the strange data comes from my attempt to
> tame PerlySense to work on w32.
>
> I happened to call (via flymake) start-process with bad data. I am
> surprised that these entered into the data structures of list-process
> and stayed there. There must be a bug there on w32.
>
> What I did was esssentially that I made the argument PROGRAM-ARGS of
> start-process into a list.


Not the whole PROGRAM-ARGS of course, but the tail of it was made a
list of a list.