gast@hoagie ~ $ gdb glxinfo
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This GDB was configured as "i686-pc-linux-gnu"...
Using host libthread_db library "/lib/libthread_db.so.1".
(gdb) run
Starting program: /usr/bin/glxinfo
[Thread debugging using libthread_db enabled]
[New Thread -1213032160 (LWP 21101)]
name of display: :0.0
************************************INFO***********************************
File nouveau_fifo.c function nouveauFifoInit line 138
Fifo init ok. Using context 1
***************************************************************************

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1213032160 (LWP 21101)]
0x00000000 in ?? ()
(gdb) bt
#0  0x00000000 in ?? ()
#1  0xb7937086 in nouveauCreateContext () from /usr/lib/dri/nouveau_dri.so
#2  0xb7930953 in ?? () from /usr/lib/dri/nouveau_dri.so
#3  0x08056990 in ?? ()
#4  0x08057680 in ?? ()
#5  0x00000000 in ?? ()
(gdb) up
#1  0xb7937086 in nouveauCreateContext () from /usr/lib/dri/nouveau_dri.so
(gdb) l
1       /var/tmp/portage/sys-libs/glibc-2.5/work/build-default-i686-pc-linux-gnu-nptl/nptl/crti.S: No such file or directory.
        in /var/tmp/portage/sys-libs/glibc-2.5/work/build-default-i686-pc-linux-gnu-nptl/nptl/crti.S
(gdb)