sam@sam-laptop: ~
$ ssh 192.168.1.108
sam@192.168.1.108's password: 
Linux sam-desktop 2.6.26-5-generic #1 SMP Sun Aug 3 01:26:00 UTC 2008 x86_64

The programs included with the Ubuntu system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by
applicable law.

To access official Ubuntu documentation, please visit:
http://help.ubuntu.com/
Last login: Sat Aug  9 15:46:39 2008 from sam-laptop.lan
sam@sam-desktop:~$ 
sam@sam-desktop:~$ sudo gdb Xorg
[sudo] password for sam: 
GNU gdb 6.8-debian
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu"...
(gdb) break RADEONMapMMIO
Function "RADEONMapMMIO" not defined.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 1 (RADEONMapMMIO) pending.
(gdb) handle SIGUSR1 nostop
Signal        Stop	Print	Pass to program	Description
SIGUSR1       No	Yes	Yes		User defined signal 1
(gdb) run
Starting program: /usr/bin/Xorg 
[Thread debugging using libthread_db enabled]

This is a pre-release version of the X server from The X.Org Foundation.
It is not supported in any way.
Bugs may be filed in the bugzilla at http://bugs.freedesktop.org/.
Select the "xorg" product for bugs you find in this release.
Before reporting bugs in pre-release versions please check the
latest version in the X.Org Foundation git repository.
See http://wiki.x.org/wiki/GitPage for git access instructions.

X.Org X Server 1.4.99.906 (1.5.0 RC 6)
Release Date: 
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.24-15-server x86_64 Ubuntu
Current Operating System: Linux sam-desktop 2.6.26-5-generic #1 SMP Sun Aug 3 01:26:00 UTC 2008 x86_64
Build Date: 06 August 2008  11:28:30AM
xorg-server 2:1.4.99.906-1ubuntu3 (buildd@crested.buildd) 
	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
Module Loader present
Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Sat Aug  9 16:05:53 2008
(==) Using config file: "/etc/X11/xorg.conf"
[New Thread 0x7fb5ade9a6e0 (LWP 5972)]
[tcsetpgrp failed in terminal_inferior: Operation not permitted]
[Switching to Thread 0x7fb5ade9a6e0 (LWP 5972)]

Breakpoint 1, RADEONMapMMIO (pScrn=0x1254580) at ../../src/radeon_driver.c:358
358	../../src/radeon_driver.c: No such file or directory.
	in ../../src/radeon_driver.c
(gdb) break pci_device_map_range
Breakpoint 2 at 0x7fb5ada93830: file ../../src/common_interface.c, line 215.
(gdb) cont
Continuing.

Breakpoint 2, pci_device_map_range (dev=0x123f8b8, base=3491758080, size=65536, map_flags=1, addr=0x1257788)
    at ../../src/common_interface.c:215
215	../../src/common_interface.c: No such file or directory.
	in ../../src/common_interface.c
(gdb) bt full
#0  pci_device_map_range (dev=0x123f8b8, base=3491758080, size=65536, map_flags=1, addr=0x1257788) at ../../src/common_interface.c:215
	mappings = <value optimized out>
	region = <value optimized out>
	i = <value optimized out>
	err = <value optimized out>
#1  0x00007fb5aa622f2d in RADEONMapMMIO (pScrn=0x1254580) at ../../src/radeon_driver.c:383
	info = (RADEONInfoPtr) 0x1257730
	pRADEONEnt = (RADEONEntPtr) 0x1254d10
	err = <value optimized out>
#2  0x00007fb5aa624ddb in RADEONPreInit (pScrn=0x1254580, flags=0) at ../../src/radeon_driver.c:2739
	pInt10 = <value optimized out>
	int10_save = <value optimized out>
	s = <value optimized out>
	crtc_max_X = <value optimized out>
	crtc_max_Y = <value optimized out>
	pRADEONEnt = (RADEONEntPtr) 0x1254d10
	pPriv = <value optimized out>
#3  0x0000000000469ce9 in InitOutput (pScreenInfo=0x7e37c0, argc=1, argv=0x7fffb5eb7748) at ../../../../hw/xfree86/common/xf86Init.c:749
	configured_device = <value optimized out>
	i = 0
	j = <value optimized out>
	k = <value optimized out>
	scr_index = <value optimized out>
	modulelist = <value optimized out>
	optionlist = (pointer *) 0x1245830
	layout = (screenLayoutPtr) 0x1233700
	screenpix24 = <value optimized out>
	pix24 = <value optimized out>
	pix24From = <value optimized out>
	autoconfig = <value optimized out>
#4  0x0000000000433116 in main (argc=1, argv=0x7fffb5eb7748, envp=0x7fffb5eb7758) at ../../dix/main.c:358
	i = 0
	error = 0
	xauthfile = <value optimized out>
	alwaysCheckForInput = {0, 1}
(gdb) info locals
mappings = <value optimized out>
region = <value optimized out>
i = <value optimized out>
err = <value optimized out>
(gdb) next
226	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = <value optimized out>
i = <value optimized out>
err = <value optimized out>
(gdb) next
215	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = <value optimized out>
i = <value optimized out>
err = <value optimized out>
(gdb) next
226	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = <value optimized out>
i = <value optimized out>
err = <value optimized out>
(gdb) next
215	in ../../src/common_interface.c
(gdb) where
#0  pci_device_map_range (dev=0x123f8b8, base=3491758080, size=65536, map_flags=1, addr=0x1257788) at ../../src/common_interface.c:215
#1  0x00007fb5aa622f2d in RADEONMapMMIO (pScrn=0x1254580) at ../../src/radeon_driver.c:383
#2  0x00007fb5aa624ddb in RADEONPreInit (pScrn=0x1254580, flags=0) at ../../src/radeon_driver.c:2739
#3  0x0000000000469ce9 in InitOutput (pScreenInfo=0x7e37c0, argc=1, argv=0x7fffb5eb7748) at ../../../../hw/xfree86/common/xf86Init.c:749
#4  0x0000000000433116 in main (argc=1, argv=0x7fffb5eb7748, envp=0x7fffb5eb7758) at ../../dix/main.c:358
(gdb) next
226	in ../../src/common_interface.c
(gdb) next
215	in ../../src/common_interface.c
(gdb) next
226	in ../../src/common_interface.c
(gdb) next
224	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = 0
i = <value optimized out>
err = 14
(gdb) next
226	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = 0
i = <value optimized out>
err = 14
(gdb) next
234	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = 0
i = <value optimized out>
err = 14
(gdb) next
235	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = 0
i = <value optimized out>
err = 14
(gdb) next
231	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = 0
i = <value optimized out>
err = 14
(gdb) next
234	in ../../src/common_interface.c
(gdb) locals
Undefined command: "locals".  Try "help".
(gdb) info locals
mappings = <value optimized out>
region = 1
i = <value optimized out>
err = 14
(gdb) next
231	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = 1
i = <value optimized out>
err = 14
(gdb) next
234	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = 2
i = <value optimized out>
err = 14
(gdb) next
235	in ../../src/common_interface.c
(gdb) next
236	in ../../src/common_interface.c
(gdb) next
245	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = 2
i = <value optimized out>
err = 7
(gdb) next
252	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = 2
i = <value optimized out>
err = 7
(gdb) next
260	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = 2
i = 3491823616
err = 7
(gdb) next
262	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = 2
i = 3491823616
err = 7
(gdb) next
260	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = 2
i = 3491823616
err = 12
(gdb) next
262	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = 2
i = <value optimized out>
err = 12
(gdb) next
260	in ../../src/common_interface.c
(gdb) info locals
mappings = (struct pci_device_mapping *) 0x1258300
region = 2
i = <value optimized out>
err = 12
(gdb) next
262	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = 2
i = <value optimized out>
err = 12
(gdb) next
266	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = 2
i = <value optimized out>
err = 12
(gdb) next
268	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = 2
i = <value optimized out>
err = 12
(gdb) next
266	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = 2
i = <value optimized out>
err = 12
(gdb) next
267	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = 2
i = <value optimized out>
err = 12
(gdb) next
269	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = 2
i = <value optimized out>
err = 12
(gdb) 
mappings = <value optimized out>
region = 2
i = <value optimized out>
err = 12
(gdb) next
270	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = 2
i = <value optimized out>
err = 12
(gdb) next
272	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = 2
i = <value optimized out>
err = 12
(gdb) next
270	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = <value optimized out>
i = <value optimized out>
err = 12
(gdb) next
272	in ../../src/common_interface.c
(gdb) info locals
mappings = <value optimized out>
region = <value optimized out>
i = <value optimized out>
err = 12
(gdb) next
273	in ../../src/common_interface.c
(gdb) info locals
mappings = (struct pci_device_mapping *) 0x1258300
region = <value optimized out>
i = <value optimized out>
err = 12
(gdb) next