GNU bug report logs - #11964
describe-char causes a fatal error (abort trap: 6) in non-windowed mode

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Jan Djärv <jan.h.d <at> swipnet.se>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#11964: closed (describe-char causes a fatal error (abort
 trap: 6) in non-windowed mode)
Date: Sat, 24 Nov 2012 18:02:02 +0000

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Your message dated Sat, 24 Nov 2012 18:59:54 +0100
with message-id <97BC8D6C-F53B-4E18-9089-B4F8D7E39372 <at> swipnet.se>
and subject line Re: bug#11964: describe-char causes a fatal error (abort trap: 6) in non-windowed mode
has caused the debbugs.gnu.org bug report #11964,
regarding describe-char causes a fatal error (abort trap: 6) in non-windowed mode
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
11964: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=11964
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Contact help-debbugs <at> gnu.org with problems

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From: Dan Maftei <ninestraycats <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: describe-char causes a fatal error (abort trap: 6) in non-windowed
	mode
Date: Mon, 16 Jul 2012 23:51:50 +0100

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GNU Emacs 24.1.1 (x86_64-apple-darwin11.4.0, NS apple-appkit-1138.47)

emacs -Q -nw
n C-x 8 <RET> 0303 <RET> C-b C-u C-x =

This crashes emacs. I am returned to bash. "Fatal error (10)" is written to
the screen. After about 3 seconds, "Abort trap: 6" is appended to the same
line, and I am returned to the prompt.

This does not happen in the windowed version (Emacs.app)

every locale variable is en_GB.UTF-8

TERM is dumb.

This (http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9172) might be of use.
It describes a similar bug on emacs 23.3 running on an xterm, but the
program does not crash.

Cheers,
Dan

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From: Jan Djärv <jan.h.d <at> swipnet.se>
To: Chong Yidong <cyd <at> gnu.org>
Cc: Dan Maftei <ninestraycats <at> gmail.com>, 11964-done <at> debbugs.gnu.org
Subject: Re: bug#11964: describe-char causes a fatal error (abort trap: 6) in
	non-windowed mode
Date: Sat, 24 Nov 2012 18:59:54 +0100

Hello.

This has been fixed in the trunk.
The problem was that ns-win created fontsets unconditionally during load and that lead to problems when running with -nw, in face_for_char.  Shouldn't fontsets/font objects be ignored if the terminal is a non-GUI one?

	Jan D.

23 nov 2012 kl. 08:07 skrev Jan Djärv <jan.h.d <at> swipnet.se>:

> Hello.
> 
> 23 nov 2012 kl. 07:26 skrev Chong Yidong <cyd <at> gnu.org>:
> 
>> Jan Djärv <jan.h.d <at> swipnet.se> writes:
>> 
>>> Here is a backtrace.  The fontdriver does not have an encode_char
>>> function (it is NULL).  But I don't know which driver this is.  Lisp
>>> backtrace is broken it seems.
>> 
>> Could you do
>> 
>> f 1
>> pp face->font->driver->type
>> 
>> and see what font driver it is (or if there is one)?
> 
> Basically no, because
> 
> p face->font->driver
> $3 = (struct font_driver *) 0x3
> 
> Uninitialized memory?
> 
> 	Jan D.
> 

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