[sangu@localhost ~]$ sudo gdb Xorg 2422
Password:
GNU gdb Red Hat Linux (6.6-15.fc8rh)
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This GDB was configured as "i386-redhat-linux-gnu"...
Using host libthread_db library "/lib/libthread_db.so.1".
Attaching to program: /usr/bin/Xorg, process 2422
Reading symbols from /lib/libdl.so.2...Reading symbols from /usr/lib/debug/lib/libdl-2.6.so.debug...done.
done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /usr/lib/libXfont.so.1...done.
Loaded symbols for /usr/lib/libXfont.so.1
Reading symbols from /usr/lib/libXau.so.6...done.
Loaded symbols for /usr/lib/libXau.so.6
Reading symbols from /usr/lib/libfontenc.so.1...done.
Loaded symbols for /usr/lib/libfontenc.so.1
Reading symbols from /usr/lib/libXdmcp.so.6...done.
Loaded symbols for /usr/lib/libXdmcp.so.6
Reading symbols from /lib/libselinux.so.1...done.
Loaded symbols for /lib/libselinux.so.1
Reading symbols from /lib/libm.so.6...Reading symbols from /usr/lib/debug/lib/libm-2.6.so.debug...done.
done.
Loaded symbols for /lib/libm.so.6
Reading symbols from /lib/libgcc_s.so.1...done.
Loaded symbols for /lib/libgcc_s.so.1
Reading symbols from /lib/libc.so.6...Reading symbols from /usr/lib/debug/lib/libc-2.6.so.debug...done.
done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/ld-linux.so.2...Reading symbols from /usr/lib/debug/lib/ld-2.6.so.debug...done.
done.
Loaded symbols for /lib/ld-linux.so.2
Reading symbols from /usr/lib/libfreetype.so.6...Reading symbols from /usr/lib/debug/usr/lib/libfreetype.so.6.3.15.debug...done.
done.
Loaded symbols for /usr/lib/libfreetype.so.6
Reading symbols from /lib/libz.so.1...Reading symbols from /usr/lib/debug/lib/libz.so.1.2.3.debug...done.
done.
Loaded symbols for /lib/libz.so.1
Reading symbols from /lib/libsepol.so.1...done.
Loaded symbols for /lib/libsepol.so.1
Reading symbols from /usr/lib/xorg/modules/libpcidata.so...Reading symbols from /usr/lib/debug/usr/lib/xorg/modules/libpcidata.so.debug...done.
done.
Loaded symbols for /usr/lib/xorg/modules//libpcidata.so
Reading symbols from /usr/lib/xorg/modules/linux/libfbdevhw.so...Reading symbols from /usr/lib/debug/usr/lib/xorg/modules/linux/libfbdevhw.so.debug...done.
done.
Loaded symbols for /usr/lib/xorg/modules/linux//libfbdevhw.so
Reading symbols from /usr/lib/xorg/modules/extensions/librecord.so...Reading symbols from /usr/lib/debug/usr/lib/xorg/modules/extensions/librecord.so.debug...done.
done.
Loaded symbols for /usr/lib/xorg/modules/extensions//librecord.so
Reading symbols from /usr/lib/xorg/modules/fonts/libfreetype.so...Reading symbols from /usr/lib/debug/usr/lib/xorg/modules/fonts/libfreetype.so.debug...done.
done.
Loaded symbols for /usr/lib/xorg/modules/fonts//libfreetype.so
Reading symbols from /usr/lib/xorg/modules/fonts/libtype1.so...Reading symbols from /usr/lib/debug/usr/lib/xorg/modules/fonts/libtype1.so.debug...done.
done.
Loaded symbols for /usr/lib/xorg/modules/fonts//libtype1.so
Reading symbols from /usr/lib/xorg/modules/extensions/nvidia/libglx.so...done.
Loaded symbols for /usr/lib/xorg/modules/extensions/nvidia//libglx.so
Reading symbols from /usr/lib/nvidia/libGLcore.so.1...done.
Loaded symbols for /usr/lib/nvidia/libGLcore.so.1
Reading symbols from /usr/lib/nvidia/tls/libnvidia-tls.so.1...done.
Loaded symbols for /usr/lib/nvidia/tls/libnvidia-tls.so.1
Reading symbols from /usr/lib/xorg/modules/extensions/libdbe.so...Reading symbols from /usr/lib/debug/usr/lib/xorg/modules/extensions/libdbe.so.debug...done.
done.
Loaded symbols for /usr/lib/xorg/modules/extensions//libdbe.so
Reading symbols from /usr/lib/xorg/modules/extensions/libextmod.so...Reading symbols from /usr/lib/debug/usr/lib/xorg/modules/extensions/libextmod.so.debug...done.
done.
Loaded symbols for /usr/lib/xorg/modules/extensions//libextmod.so
Reading symbols from /usr/lib/xorg/modules/drivers/nvidia_drv.so...done.
Loaded symbols for /usr/lib/xorg/modules/drivers//nvidia_drv.so
Reading symbols from /usr/lib/xorg/modules/input/mouse_drv.so...done.
Loaded symbols for /usr/lib/xorg/modules/input//mouse_drv.so
Reading symbols from /usr/lib/xorg/modules/input/kbd_drv.so...done.
Loaded symbols for /usr/lib/xorg/modules/input//kbd_drv.so
Reading symbols from /usr/lib/xorg/modules/libfb.so...Reading symbols from /usr/lib/debug/usr/lib/xorg/modules/libfb.so.debug...done.
done.
Loaded symbols for /usr/lib/xorg/modules//libfb.so
Reading symbols from /usr/lib/xorg/modules/extensions/nvidia/libwfb.so...done.
Loaded symbols for /usr/lib/xorg/modules/extensions/nvidia//libwfb.so
Reading symbols from /lib/libnss_files.so.2...Reading symbols from /usr/lib/debug/lib/libnss_files-2.6.so.debug...done.
done.
Loaded symbols for /lib/libnss_files.so.2
0x00f3daa2 in _nv001900X () from /usr/lib/xorg/modules/drivers//nvidia_drv.so
(gdb) bt
#0  0x00f3daa2 in _nv001900X ()
   from /usr/lib/xorg/modules/drivers//nvidia_drv.so
#1  0x004e5050 in ?? () from /usr/lib/xorg/modules/extensions/nvidia//libglx.so
#2  0xb762f6a0 in ?? ()
#3  0x00000000 in ?? ()
(gdb) bt full
#0  0x00f3daa2 in _nv001900X ()
   from /usr/lib/xorg/modules/drivers//nvidia_drv.so
No symbol table info available.
#1  0x004e5050 in ?? () from /usr/lib/xorg/modules/extensions/nvidia//libglx.so
No symbol table info available.
#2  0xb762f6a0 in ?? ()
No symbol table info available.
#3  0x00000000 in ?? ()
No symbol table info available.
(gdb)