GNU bug report logs - #16096
emacs_abort in bidi_initialize + 126 / Fselect_frame -- uniprop_table returns NIL

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From: Eli Zaretskii <eliz <at> gnu.org>
To: david.reitter <at> gmail.com
Cc: 16096 <at> debbugs.gnu.org, konrad.podczeck <at> univie.ac.at
Subject: bug#16096: emacs_abort in bidi_initialize + 126 / Fselect_frame	--	uniprop_table returns NIL
Date: Tue, 10 Dec 2013 18:28:32 +0200

> Date: Tue, 10 Dec 2013 05:45:20 +0200
> From: Eli Zaretskii <eliz <at> gnu.org>
> Cc: 16096 <at> debbugs.gnu.org, konrad.podczeck <at> univie.ac.at
> 
> > From: David Reitter <david.reitter <at> gmail.com>
> > Date: Mon, 9 Dec 2013 17:54:46 -0500
> > Cc: konrad podczeck <konrad.podczeck <at> univie.ac.at>
> > 
> > Given the activity in bidi, I thought I'd forward this crash report.
> > 
> > bidi_initialize+126 resolves as follows in this binary:
> > 
> > (lldb) image lookup --address bidi_initialize+126
> >       Address: Aquamacs[0x00000001000efa4e] (Aquamacs.__TEXT.__text + 971166)
> >       Summary: Aquamacs`bidi_initialize + 126 at bidi.c:766
> > 
> > I.e., uniprop_table (intern ("mirroring")) seems to have returned NIL.
> 
> Thanks.
> 
> Is the problem still reproducible with the current trunk?  If so, I'd
> need a recipe to work on this.

Actually, there's something else that is strange in this report:

  The last merged change in bidi.c is

  Author: Paul Eggert <eggert <at> cs.ucla.edu>
  Date:   Tue Sep 17 00:06:42 2013 -0700

      Don't overuse 'const' in types of locals.

How come an Emacs built on Dec 9 has its last change in bidi.c in
September?  Is this the development trunk or something else?  If the
former, which bzr revision does it correspond to?

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