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bug#5396: Something in splash page causes Emacs to crash?


From: Kenichi Handa
Subject: bug#5396: Something in splash page causes Emacs to crash?
Date: Wed, 27 Jan 2010 15:11:40 +0900

In article <address@hidden>, Joseph Tam <address@hidden> writes:

> Under certain circumstances, emacs crashes on startup.  I hope I have
> provided enough details for you to figure it out, or at least, so that
> you can refer me for more diagnostics.

> Using a X11 thin client,  I could not recreate this problem by using
> emacs directly on the installed host, but rather, I ssh -X from an
> intermediary host, then ran emacs:

>       thin client <- X11 -> intermediary host <- "ssh -X" -> emacs

[...]
>       (gdb) run
>       Starting program: /nfs/build/Emacs/emacs-23.1/src/emacs

>       Breakpoint 1, abort () at emacs.c:432
>       432       kill (getpid (), SIGABRT);

>       (gdb) bt
>       #0  abort () at emacs.c:432
>       #1  0x0017ef30 in font_parse_xlfd (name=0x8 <Address 0x8 out of 
> bounds>, font=-2138962232) at font.c:1131
>       #2  0x001c8130 in xfont_list_pattern (display=0x7c5a80,
>           pattern=0xffbfc198 
> "-adobe-helvetica-*-*-*-*-*-*-*-*-*-*-iso8859-1", registry=540807248, 
> script=540533584)
>           at xfont.c:414
[...]
>       (gdb) up
>       #1  0x0017ef30 in font_parse_xlfd (name=0x8 <Address 0x8 out of bounds>,
>           font=-2142319328) at font.c:1131
>       1131                  font_assert (FONT_SPEC_P (font));

>       (gdb) pr font
>       The history is empty.

>       (gdb) call debug_print(font)
>       #<font-entity nil adobe helvetica x iso8859-1 medium r normal nil nil 
> nil nil nil>

Hmm, it seems that the contents of `name' argument to
font_parse_xlfd is broken or invalid.

In the same gdb session, following the above, please do:

(gdb) up
(gdb) p buf

---
Kenichi Handa
address@hidden






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