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Re: 23.0.60; Seg fault in xfaces.c at line 6703 (Emacs.app on GNUstep)

From: YAMAMOTO Mitsuharu
Subject: Re: 23.0.60; Seg fault in xfaces.c at line 6703 (Emacs.app on GNUstep)
Date: Mon, 04 Feb 2008 10:39:54 +0900
User-agent: Wanderlust/2.14.0 (Africa) SEMI/1.14.6 (Maruoka) FLIM/1.14.8 (Shij┼Ź) APEL/10.6 Emacs/23.0.50 (sparc-sun-solaris2.8) MULE/5.0 (SAKAKI)

>>>>> On Sun, 03 Feb 2008 09:19:05 -0800, Dan Nicolaescu <dann@ics.uci.edu> 
>>>>> said:

>> I think there are 2 issues here: the presence of the value '0x0' in
>> a field meant to contain a pointer to a face_cache struct, and what
>> the presence of that value causes to happen.
>> To me it seems that while almost certainly the former is an
>> Emacs.app issue, the latter is more likely an Emacs 23.0.60 issue.
>> I don't know for sure, since I'm not an Emacs or Emacs.app hacker.

> IMO, the latter should not happen because of the context of that
> function's execution.  Please followup here if you have a positive
> proof that of the contrary.

As I said in *1, I could reproduce a similar backtrace by deliberately
defining CANNOT_DUMP.  I suspect this is a generic problem for
CANNOT_DUMP platforms after the multi-tty merger.

*1 http://lists.gnu.org/archive/html/emacs-devel/2008-01/msg02051.html

> So if you haven't done it already, please report this issue to the
> Emacs.app maintainers. It's not guaranteed that they read this list.
> The earlier they know about issues like this, the earlier the
> Emacs.app code can be merged into emacs.

The OP has already posted the report there (I said so in *1, too,

                                     YAMAMOTO Mitsuharu

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