Bug#508859: xserver-xorg: xorg hangs randomly (+reproduceable) and uses then 98% CPU

[Brice Goglin]

Peter Weil wrote:
> 5 minutes ago it crashed again while viewing a pdf file in KPDF.
>
> So xserver-xorg-video-radeon 1:6.10.0-2 didn't fix the problem.
>   

A crash and a hang are different problems. Please describe precisely
what's happening now and what was happening in the original bug report.

If it's a crash, you should get back to the login screen. Look at the
end of the log (might be in Xorg.0.log.old if X restarted), there should
be a backtrace there.

Brice