bug#1131: Fwd: [Aquamacs-bugs] problem with comint

bug#1131: Fwd: [Aquamacs-bugs] problem with comint

[Adrian Robert]

Hello,

Does this issue still exist in emacs-23?  Can it be reproduced in any  
simple manner without access to Matlab?  Does it exist on an X11  
build of Emacs on Mac OS X?

If I try just

(make-comint "MATLAB EEI" (cons (system-name) 5600))

on Emacs.app on my system, with nothing listening on 5600 (but not a  
packet-dropping firewall either), I quickly get a lisp error about  
'(file-error "make client process failed" ...'.

thanks,
Adrian

bug#1131: [Aquamacs-bugs] problem with comint

[David Reitter]

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Can't reproduce right now neither in 22 nor in 23, using "nc -l 5600"  
and the make-comint command.  Just using make-comint with a port that  
doesn't answer doesn't time out, but brings up an error message.

Perhaps it is a DNS problem; longer timeouts can happen there.

Comint generally works for me.

Unless we have a reproducible report, let's deprioritize this.


On 6 Mar 2009, at 14:36, Adrian Robert wrote:

> Hello,
>
> Does this issue still exist in emacs-23?  Can it be reproduced in  
> any simple manner without access to Matlab?  Does it exist on an X11  
> build of Emacs on Mac OS X?
>
> If I try just
>
> (make-comint "MATLAB EEI" (cons (system-name) 5600))
>
> on Emacs.app on my system, with nothing listening on 5600 (but not a  
> packet-dropping firewall either), I quickly get a lisp error about  
> '(file-error "make client process failed" ...'.
>
> thanks,
> Adrian
>


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bug#1131: [Aquamacs-bugs] problem with comint

[Eric Tytell]

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Hi all -
  This has not been giving me any problems recently, but I'm not sure that
the original bug is fixed.  I found a work-around, by changing the line to
read

(make-comint "MATLAB EEI" (cons 'local 5600))

That one now works consistently, while the other

(make-comint "MATLAB EEI" (cons (system-name) 5600))

failed when I was connected via wi-fi (and had a DHCP assigned TCP-IP
address), but not when I was connected via ethernet (and had a static
TCP-IP) address.  I don't know if it would still be a problem the original
way it was written.

Eric


On Fri, Mar 6, 2009 at 2:44 PM, David Reitter <david.reitter@gmail.com>wrote:

> Can't reproduce right now neither in 22 nor in 23, using "nc -l 5600" and
> the make-comint command.  Just using make-comint with a port that doesn't
> answer doesn't time out, but brings up an error message.
>
> Perhaps it is a DNS problem; longer timeouts can happen there.
>
> Comint generally works for me.
>
> Unless we have a reproducible report, let's deprioritize this.
>
>
>
> On 6 Mar 2009, at 14:36, Adrian Robert wrote:
>
>  Hello,
>>
>> Does this issue still exist in emacs-23?  Can it be reproduced in any
>> simple manner without access to Matlab?  Does it exist on an X11 build of
>> Emacs on Mac OS X?
>>
>> If I try just
>>
>> (make-comint "MATLAB EEI" (cons (system-name) 5600))
>>
>> on Emacs.app on my system, with nothing listening on 5600 (but not a
>> packet-dropping firewall either), I quickly get a lisp error about
>> '(file-error "make client process failed" ...'.
>>
>> thanks,
>> Adrian
>>
>>
>

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bug#1131: [Aquamacs-bugs] problem with comint

[David Reitter]

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On 6 Mar 2009, at 15:43, Eric Tytell wrote:
>
> That one now works consistently, while the other
>
> (make-comint "MATLAB EEI" (cons (system-name) 5600))
>
> failed when I was connected via wi-fi (and had a DHCP assigned TCP- 
> IP address), but not when I was connected via ethernet (and had a  
> static TCP-IP) address.  I don't know if it would still be a problem  
> the original way it was written.

I think that speaks for my DNS theory.


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bug#1131: [Aquamacs-bugs] problem with comint

[Adrian Robert]

On Mar 6, 2009, at 11:58 PM, David Reitter wrote:

> On 6 Mar 2009, at 15:43, Eric Tytell wrote:
>>
>> That one now works consistently, while the other
>>
>> (make-comint "MATLAB EEI" (cons (system-name) 5600))
>>
>> failed when I was connected via wi-fi (and had a DHCP assigned TCP- 
>> IP address), but not when I was connected via ethernet (and had a  
>> static TCP-IP) address.  I don't know if it would still be a  
>> problem the original way it was written.
>
> I think that speaks for my DNS theory.

Maybe, though in that case I'm not sure if I'd be willing to call it  
a bug in emacs, unless Ctrl-G wouldn't abort it.  (It should now in  
Emacs.app ;).  Anyway I can't reproduce it putting in whatever bogus  
name instead of (system-name).

I'm inclined to close the bug.