bug#11813: Segmentation fault on launch related to x_draw_glyph_string_background

[Eli Zaretskii]

> Date: Fri, 29 Jun 2012 13:17:48 +0300
> From: Left Right <olegsivokon@gmail.com>
> Cc: 11813@debbugs.gnu.org
> 
> (gdb) pgrow
> TEXT: 68 glyphs
>   0    0: CHAR[ ] str=eb7881[0] blev=0,btyp=L w=11 a+d=14+4 face=1 [
>   1   11: CHAR[U] str=11bef51[1] blev=0,btyp=L w=10 a+d=14+4 face=1
>   2   21: CHAR[:] str=169a6c1[0] blev=0,btyp=L w=10 a+d=14+4 face=1
>   3   31: CHAR[-] str=11daed1[1] blev=0,btyp=L w=10 a+d=14+4 face=1
>   4   41: CHAR[-] str=11daeb1[1] blev=0,btyp=L w=10 a+d=14+4 face=1
>   5   51: CHAR[-] str=11dbba1[1] blev=0,btyp=L w=10 a+d=14+4 face=1
>   6   61: CHAR[ ] str=b0bf61[0] blev=0,btyp=L w=10 a+d=14+4 face=1
>   7   71: CHAR[ ] str=b0bf61[1] blev=0,btyp=L w=10 a+d=14+4 face=1
>   8   81: GLYPHLESS[HEX] str=11bf4c1[1] w=24 a+d=18+7 face=13 
> slice=2,65530,2,5
>   9  105: GLYPHLESS[HEX] str=11bf4c1[1] w=24 a+d=18+7 face=13 
> slice=2,65530,2,5
>  10  129: GLYPHLESS[HEX] str=11bf4c1[1] w=24 a+d=18+7 face=13 
> slice=2,65530,2,5
>  11  153: GLYPHLESS[HEX] str=11bf4c1[1] w=24 a+d=18+7 face=13 
> slice=2,65530,2,5
>  12  177: GLYPHLESS[HEX] str=11bf4c1[1] w=24 a+d=18+7 face=13 
> slice=2,65530,2,5
>  13  201: GLYPHLESS[HEX] str=11bf4c1[1] w=24 a+d=18+7 face=13 
> slice=2,65530,2,5
>  14  225: GLYPHLESS[HEX] str=11bf4c1[1] w=24 a+d=18+7 face=13 
> slice=2,65530,2,5
>  15  249: GLYPHLESS[HEX] str=11bf4c1[1] w=24 a+d=18+7 face=13 
> slice=2,65530,2,5
>  16  273: GLYPHLESS[HEX] str=11bf4c1[1] w=24 a+d=18+7 face=13 
> slice=2,65530,2,5
>  17  297: GLYPHLESS[HEX] str=11bf4c1[1] w=24 a+d=18+7 face=13 
> slice=2,65530,2,5
>  18  321: GLYPHLESS[HEX] str=11bf4c1[1] w=24 a+d=18+7 face=13 
> slice=2,65530,2,5
>  19  345: GLYPHLESS[HEX] str=11bf4c1[1] w=24 a+d=18+7 face=13 
> slice=2,65530,2,5

This is the mode line (of the "*scratch*" buffer, I presume).  The
GLYPHLESS parts seem to indicate that Emacs has no font to display the
buffer name in bold.  Is that possible, given your configuration of
fonts?

I'll try to find a way to avoid a crash in this case.