Comment 2 for bug 447010

Btw, the patch I referred to "just dropping dead code" which I proposed omitting, is discussed in more detail here:

http://article.gmane.org/gmane.comp.freedesktop.xorg.devel/1945

In short, the motivation for dropping the dead code is because it exposes a section of server memory to clients to mmap, which is not safe. In addition, the code has been non-functional for the FOSS drivers for about two years.