7.2-PRE amd64 panic when starting Xorg

[Jeff Blank]

On Sun, Apr 26, 2009 at 01:08:13AM -0400, Jeff Blank wrote:
> I've installed 7.2-PRERELEASE, csup on 20090423 at around 19:00 UTC.
> When I rebooted after installing world, X started (xdm in /etc/ttys)
> and immediately panicked the system, even before switching to the new
> VTY.

I probably should have specified that my video chipset is a Radeon
X800 (R430), PCIE, instead of letting you all go hunting for it in the
attachments of my previous post.  And a little more playing reveals
that the panic goes away when I disable dri and dri2 in xorg.conf.  I
had those commented out in the previously-attached config, not
realising that they're enabled by default.  (Though X still doesn't
seem to work quite right without those, for whatever that's worth).

Jeff