bug#3659: FW: 23.0.95; crash on set-frame-font

[Marshall, Simon]

Guys, I can confirm it is this change that started the problem:

2009-05-21  Kenichi Handa  <handa@m17n.org>

        * fontset.c (Qlatin): Don't make it static.

        * xfont.c (xfont_chars_supported, xfont_supported_scripts):
        New functions.
        (xfont_scripts_cache, xfont_scratch_props): New variables.
        (Qlatin, Vscalable_fonts_allowed): Extern it.
        (xfont_list_pattern): Argument changed.  Callers changed.
        Check Vscalable_fonts_allowed.  Check the support of a script.
        (xfont_list): Don't reject a font spec with :script property.
        (xfont_has_char): Fix setting of encoding.
        (syms_of_xfont): Staticpro and initialize xfont_scripts_cache
and
        xfont_scratch_props.

These were made at revisions 1.172 of src/fontset.c and 1.29 of
src/xfont.c.

If you need more info, what would you like me to do?

The core dump is:

risksun2 123> gdb src/emacs
GNU gdb 6.7.1
Copyright (C) 2007 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show
copying"
and "show warranty" for details.
This GDB was configured as "sparc-sun-solaris2.8"...
(gdb) run -Q
Starting program:
/homedev/marshals/ftp/emacs-23.1-pretests/emacs-2009-05-21+2/src/emacs
-Q
warning: Temporarily disabling breakpoints for unloaded shared library
"/usr/lib/ld.so.1"

Program received signal SIGSEGV, Segmentation fault.
0x0009890c in encode_char (charset=0xffbed244, c=192) at charset.c:1804
1804          deunifier = CHARSET_DEUNIFIER (charset);
(gdb) where
#0  0x0009890c in encode_char (charset=0xffbed244, c=192) at
charset.c:1804
#1  0x001bf1b0 in xfont_chars_supported (chars=8343645, xfont=0x866680, 
    encoding=<value optimized out>, repertory=<value optimized out>) at
xfont.c:275
#2  0x001c0a84 in xfont_list_pattern (display=0x8c8000, 
    pattern=0xffbed228 "-*-*-*-*-*-*-*-*-*-*-*-*-*-*", registry=3737601,
script=3737601)
    at xfont.c:365
#3  0x001c0bc4 in xfont_list (frame=<value optimized out>, spec=<value
optimized out>)
    at xfont.c:566
#4  0x0017d47c in font_list_entities (frame=9140228, spec=10350340) at
font.c:2823
#5  0x0017d638 in Flist_fonts (font_spec=10350340, frame=9140228,
num=3737601, prefer=10350340)
    at font.c:4256
#6  0x000ce620 in Fx_list_fonts (pattern=2641595, face=<value optimized
out>, frame=9140228, 
    maximum=3737601, width=<value optimized out>) at xfaces.c:1905
#7  0x00167fac in Feval (form=<value optimized out>) at eval.c:2390
#8  0x00167eb8 in Feval (form=<value optimized out>) at eval.c:2361
#9  0x0016ab80 in FletX (args=2641485) at eval.c:1028
#10 0x001680dc in Feval (form=<value optimized out>) at eval.c:2323
#11 0x00164760 in Fcall_interactively (function=8733249,
record_flag=3737649, keys=3771140)
    at callint.c:364
#12 0x00168b68 in Ffuncall (nargs=4, args=<value optimized out>) at
eval.c:3051
#13 0x00168d1c in call3 (fn=3940449, arg1=8733249, arg2=3737649,
arg3=3737601) at eval.c:2871
#14 0x000fffe4 in Fexecute_extended_command (prefixarg=3737601) at
keyboard.c:10560
#15 0x00168b94 in Ffuncall (nargs=2, args=<value optimized out>) at
eval.c:3045
#16 0x001658a4 in Fcall_interactively (function=3797569,
record_flag=3737601, keys=3611648)
    at callint.c:868
#17 0x00168b68 in Ffuncall (nargs=4, args=<value optimized out>) at
eval.c:3051
#18 0x00168d1c in call3 (fn=3940449, arg1=3797569, arg2=3737601,
arg3=3737601) at eval.c:2871
#19 0x0010cc78 in command_loop_1 () at keyboard.c:1901
#20 0x001672f8 in internal_condition_case (bfun=0x10c858
<command_loop_1>, handlers=3804305, 
    hfun=0x106170 <cmd_error>) at eval.c:1512
#21 0x001055fc in command_loop_2 () at keyboard.c:1359
#22 0x001673ec in internal_catch (tag=3797353, func=0x1055d0
<command_loop_2>, arg=3737601)
    at eval.c:1248
#23 0x00105f80 in command_loop () at keyboard.c:1338
#24 0x00106300 in recursive_edit_1 () at keyboard.c:953
#25 0x00106460 in Frecursive_edit () at keyboard.c:1015
#26 0x000fb818 in main (argc=2, argv=0xffbee39c) at emacs.c:1852
(gdb) 


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