commit b1ee26b "radeonfb: accelerate imageblit and otherimprovements" freezes system on switching from X to text console

[Gaudenz Steinlin]

Hi Ben

The changes in the commit mentioned in the subject freeze my system when
changing from X to a text console. The system freezes with a garbled
display. Reverting this commit fixes the problem.

The freeze only happens if DRI is enabled in X. It also does not happen
if I simply switch between different text consoles. 

My system is a PowerPC PowerBook G4 15" (PowerBook5,8) with a ATI
Mobility Radeon 9600 M10 graphics card. I'm running X.org 1.5.1 with the
radeon driver version 6.9.0+git20080826.a3cc1d7a from Debian
experimental.

Sorry, I don't have the knowledge nor the time to fix this myself, but I
would be happy to test an improved patch. Please also feel free to ask
if you need more information.

Gaudenz

-- 
Ever tried. Ever failed. No matter.
Try again. Fail again. Fail better.
~ Samuel Beckett ~
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