Bug#536098: xserver-xorg-video-radeon: deterministic X lockup with dri

[Jonathan Rafael Ghiglia <jrghiglia@gmail.com>]

On Tue, Jul 07, 2009 at 12:17:37PM -0400, Alex Deucher wrote:
> On Tue, Jul 7, 2009 at 11:43 AM, Jonathan Rafael
> Ghiglia<jrghiglia@gmail.com> wrote:
> > Package: xserver-xorg-video-radeon
> > Version: 1:6.9.0-1+lenny4
> > Severity: normal
> >
> >
> > I have an ATI firegl 8700.
> > I'm using a custom kernel based on 2.6.30.1 but I get the exact same problem with the standard debian kernel (2.6.26 with debian testing).
> >
> > The problem shows with blender, but blender is the only GL application I (would like to) use.
> >
> > I can trigger the bug at will: launch blender, move the default cube right, change the view to "user" then move the cube again.
> >
> > Here I get the lockup.
> >
> > Xorg cpu usage goes to ~100 %.
> > I can move the mouse, very slowly. Everything else is just dead.
> >
> > I can REISUB, and I can ssh into the computer, but I can't kill Xorg, just gdb-attach to it.
> 
> The GPU has hung.  I'd suggest trying a newer mesa snapshot,
> preferably 7.6 or git master.
> 
> Alex

I can't mess up with this computer right now. I tried the packages from unstable (7.4*) with no luck (same bug).
Again, changing AGP mode has no effect, while turning on PCI mode (apparently) solves the problem, but reduces performances.

-- 
Jonathan.