Bug#365654: xserver-xorg-core: Xorg hangs in kernel during startup

[Sean Smith <sean@techhouse.org>]

Package: xserver-xorg-core
Version: 1:1.0.2-8
Followup-For: Bug #365654

I believe I am seeing this too.

When I try to start Xorg, the vt switches to a blank screen and the
system becomes entirely unresponsive to keyboard input, including
Ctrl-Alt-Backspace and Ctrl-Alt-F1.

After sshing in, I see that Xorg (the process identifying itself as
[Xorg]) is eating all the CPU, and moreover, top shows 100% system time,
so it must be in an infinite loop of some kind somewhere in the kernel.

I like graphics, and I like running unstable, so please let me know how
I can best help debug this issue.  This is my home box, so I'm willing
to try other kernels, configuration changes, etc. if it would help.

-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.16-1-amd64-k8
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)

Versions of packages xserver-xorg-core depends on:
ii  libc6                        2.3.6-7     GNU C Library: Shared libraries
ii  libfontenc1                  1:1.0.1-5   X11 font encoding library
ii  libxau6                      1:1.0.0-3   X11 authorisation library
ii  libxdmcp6                    1:1.0.0-4   X11 Display Manager Control Protoc
ii  libxfont1                    1:1.0.0-4   X11 font rasterisation library
ii  x11-common                   1:7.0.17    X Window System (X.Org) infrastruc
ii  xserver-xorg-input-evdev [xs 1:1.0.0.5-2 X.Org X server -- evdev input driv
ii  xserver-xorg-input-kbd [xser 1:1.0.1.3-2 X.Org X server -- keyboard input d
ii  xserver-xorg-input-mouse [xs 1:1.0.4-2   X.Org X server -- mouse input driv
ii  xserver-xorg-video-ati [xser 1:6.5.8.0-1 X.Org X server -- ATI display driv
ii  xserver-xorg-video-fbdev [xs 1:0.1.0.5-2 X.Org X server -- fbdev display dr
ii  xserver-xorg-video-vesa [xse 1:1.0.1.3-2 X.Org X server -- VESA display dri
ii  xserver-xorg-video-vga [xser 1:4.0.0.5-2 X.Org X server -- VGA display driv
ii  zlib1g                       1:1.2.3-11  compression library - runtime

Versions of packages xserver-xorg-core recommends:
pn  xkeyboard-config              <none>     (no description available)

-- no debconf information