Created attachment 45432 [details]
437c748bf5072d2bded77a00c74c51cdb8b510e5 is the first bad commit
Author: Marek Olšák <firstname.lastname@example.org>
Date: Sun Apr 3 18:14:49 2011 +0200
r300g: handle DISCARD_WHOLE_RESOURCE for buffers
Reverting this commit from current mesa git fixes it.
RADEON_NO_TCL=1 also works around this.
I reverted the commit because it was wrong. Closing.