Hello,

on PPC64 (most?) gtk applications crash on startup with the following error 
(for example the news reader pan):

The program 'pan' received an X Window System error. 
This probably reflects a bug in the program. 
The error was 'RenderBadGlyphSet (invalid GlyphSet parameter)'. 
  (Details: serial 2041 error_code 182 request_code 154 minor_code 23) 
  (Note to programmers: normally, X errors are reported asynchronously; 
   that is, you will receive the error a while after causing it. 
   To debug your program, run it with the --sync command line 
   option to change this behavior. You can then get a meaningful 
   backtrace from your debugger if you break on the gdk_x_error() function.) 


this would be a workaround:

##############################################################################
diff -Nur xorg-server-1.1.0.orig/render/render.c 
xorg-server-1.1.0/render/render.c
--- xorg-server-1.1.0.orig/render/render.c	2005-08-29 04:47:39.000000000 
+0900
+++ xorg-server-1.1.0/render/render.c	2006-04-29 18:11:54.596137060 +0900
@@ -1340,7 +1340,7 @@
 	{
 	    if (buffer + sizeof (GlyphSet) < end)
 	    {
-                memcpy(&gs, buffer, sizeof(GlyphSet));
+                gs = *(CARD32 *) buffer;
 		glyphSet = (GlyphSetPtr) SecurityLookupIDByType (client,
 								 gs,
 								 GlyphSetType,
##############################################################################

[quote from http://bugs.gentoo.org/show_bug.cgi?id=112355 comment #14]
Michel Dänzer pointed out that 'typedef unsigned long GlyphSet' isn't the same
size on 32/64 bit architectures, so either the Render protocol or server code
isn't 32/64 clean.
[\quote]


This only happens with gtk applications. I've never seen this with an qt 
application or something else.