https://bugs.freedesktop.org/show_bug.cgi?id=82455
--- Comment #6 from Michel Dänzer michel@daenzer.net --- FWIW, the failure to assign a valid virtual address is probably an endianness bug in the virtual memory related code in src/gallium/winsys/radeon/drm/radeon_drm_bo.c, e.g. in radeon_bomgr_find_va(), or maybe in the corresponding kernel code.