https://bugs.freedesktop.org/show_bug.cgi?id=28474
--- Comment #5 from Marek Olšák maraeo@gmail.com 2010-06-11 15:09:04 PDT --- This is weird. I think all hardlocks a driver can provoke are more or less instant. I believe something is wrong in the kernel.
IIRC Corbin had some issues with RV410 too.