https://bugs.freedesktop.org/show_bug.cgi?id=45018
--- Comment #35 from Alex Deucher agd5f@yahoo.com 2012-03-04 14:30:32 PST --- (In reply to comment #34)
Is there a way to disable radeon virtual addressing when loading the kernel?
You can disable it in mesa. Just set ws->info.r600_virtual_address to FALSE in do_winsys_init() in radeon_drm_winsys.c.