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From: Kenichi Handa <handa@m17n.org>
Cc: emacs-devel@gnu.org
Subject: Re: unicode-2 branch segfaulting on MacOS X?
Date: Mon, 23 Oct 2006 11:45:04 +0900	[thread overview]
Message-ID: <E1GbpoG-0004C0-00@etlken> (raw)
In-Reply-To: <453C1834.6040909@cis.upenn.edu> (message from Geoffrey Alan Washburn on Sun, 22 Oct 2006 21:17:40 -0400)

In article <453C1834.6040909@cis.upenn.edu>, Geoffrey Alan Washburn <geoffw@cis.upenn.edu> writes:

> > So, could you please use gdb to find exactly where (and how) Emacs causes segfault
> > (see etc/DEBUG if you are not familiar with gdb).

> 	Could you be more specific about what you mean by "how" it is 
> segfaulting?  It is pretty obvious that it is reading/writing an invalid 
> memory location.  As I said the problem occurs in font_unparse_fcname. 
> In particular, line 1258 of font.c with parameters font=42759700, 
> pixel_size=19, name=0x2a20d20 "", and nbytes=96.

That's what I wanted to know.  The code around line 1258 is
this:

1255  val = AREF (font, FONT_FOUNDRY_INDEX);
1256  if (! NILP (val))
1257    /* ":foundry=NAME" */
1258    len += 9 + SBYTES (SYMBOL_NAME (val));

So the variable `val' is suspicious.  Please check the type
and value of `val' as this:

(gdb) p val
(gdb) xtype
(gdb) pp val

---
Kenichi Handa
handa@m17n.org

  reply	other threads:[~2006-10-23  2:45 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-10-22 15:36 unicode-2 branch segfaulting on MacOS X? Geoffrey Alan Washburn
2006-10-23  1:04 ` Kenichi Handa
2006-10-23  1:17   ` Geoffrey Alan Washburn
2006-10-23  2:45     ` Kenichi Handa [this message]
2006-10-23  3:32       ` Geoffrey Alan Washburn
2006-10-23  5:59         ` Kenichi Handa
2006-10-23 10:00           ` Geoffrey Alan Washburn
2006-10-23 11:26             ` Kenichi Handa
2006-10-23 12:55               ` Geoffrey Alan Washburn
2006-10-27  4:17                 ` Kenichi Handa
2006-10-27 10:05                   ` Geoffrey Alan Washburn
2006-10-27  7:38                     ` Kenichi Handa
2006-10-27 13:36                       ` Geoffrey Alan Washburn
2006-10-28  0:41                       ` Giorgos Keramidas
2006-10-28  0:43                         ` Giorgos Keramidas
2006-10-28 17:39                           ` Geoffrey Alan Washburn
2006-11-03 16:43                             ` Geoffrey Alan Washburn
2006-11-08 11:55                             ` Kenichi Handa
2006-11-08 19:23                               ` Geoffrey Alan Washburn
2006-11-09  3:20                                 ` stephen
2006-11-09 11:41                                 ` Kenichi Handa
2006-11-12  2:59                                   ` Geoffrey Alan Washburn

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