X applications seg faulting

[Adam K Kirchhoff]

So I'm hoping for a little more guidance.  I've managed to get the 
modular X server up and running from the ports tree.  I did not install 
the entire xorg metapackage due to problems with some of the input 
drivers, so I just manually installed the necessary drivers.  I've 
installed some X11 client applications from the ports tree, including rxvt.

Though I can launch the X server, any X clients will automatically 
segfault, including xinit.  In fact, this is clearly completely 
unrelated to the X server as those client apps segfault when being 
launched on a remote X server.  If I ssh in, and try to launch rxvt, I 
get a segfault.  The backtrace shows:

(gdb) run
Starting program: /usr/X11R6/bin/rxvt
(no debugging symbols found)...(no debugging symbols found)...(no 
debugging symbols found)...
Program received signal SIGSEGV, Segmentation fault.
0x08240250 in ?? ()
(gdb) bt
#0  0x08240250 in ?? ()
#1  0x280dd81f in _XReply () from /usr/X11R6/lib/libX11.so.6
#2  0x280ba20e in XListFonts () from /usr/X11R6/lib/libX11.so.6
#3  0x2810af86 in get_font_name () from /usr/X11R6/lib/libX11.so.6
#4  0x2810b4f8 in parse_fontdata () from /usr/X11R6/lib/libX11.so.6
#5  0x2810c5ef in create_oc () from /usr/X11R6/lib/libX11.so.6
#6  0x280c5c54 in XCreateOC () from /usr/X11R6/lib/libX11.so.6
#7  0x280bad14 in XCreateFontSet () from /usr/X11R6/lib/libX11.so.6
#8  0x0804d5a3 in ?? ()
#9  0x08210800 in ?? ()
#10 0x08290240 in ?? ()
#11 0xbfbfeac0 in ?? ()
#12 0xbfbfeac4 in ?? ()
#13 0xbfbfeac8 in ?? ()
#14 0x0805aaa9 in ?? ()
#15 0xbfbfeac8 in ?? ()
#16 0x281d4b15 in __detect_path_locale () from /lib/libc.so.7
#17 0x0804d603 in ?? ()
#18 0x00e00002 in ?? ()
#19 0x00000000 in ?? ()
#20 0x00000001 in ?? ()
#21 0xbfbfeb88 in ?? ()
#22 0x00000001 in ?? ()
#23 0x00000000 in ?? ()
#24 0xbfbfeb38 in ?? ()
#25 0x080517f4 in ?? ()
#26 0x00000001 in ?? ()
#27 0xbfbfeb88 in ?? ()
#28 0x00000000 in ?? ()
#29 0xbfbfec04 in ?? ()
#30 0x2826c520 in _nsyyin () from /lib/libc.so.7
#31 0x28089600 in ?? ()
#32 0xbfbfeb30 in ?? ()
#33 0x00000001 in ?? ()
#34 0xbfbfeb90 in ?? ()
#35 0x2806288c in fetch_ventry () from /libexec/ld-elf.so.1
Previous frame inner to this frame (corrupt stack?)

Does anyone have any ideas?  Thanks!

Adam