I managed to get the r200 driver working again by doing a complete CVS
install. Some notes:

* The card does now seem to generate interrupts at about the same
frequency as the current mode's vertical refresh.

* Surprisingly (for me, at least), glxgears is now running at about
2000+ fps and consuming about 70% CPU. I expected a lower frame rate
(equal to vertical refresh) and minimal CPU usage, but my expectations
may be unrealistic.

* Quake3 still crashes after a few minutes, but with an error I haven't
seen before:

r200WaitForFrameCompletion: drmRadeonIrqWait: -16

It did this on two separate occasions. Machine locks up, although I
believe on one occassion SysRq still worked.

* Setting R200_DEBUG=sanity and running glxgears *immediately* locks the
machine hard with no output. 

-- 
Andy Dustman         PGP: 0x930B8AB6
    @       .net     http://dustman.net/andy
"Cogito, ergo sum." -- Rene Descartes
"I yam what I yam and that's all what I yam." -- Popeye


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