On Mon, 2003-03-03 at 09:25, Alan Cox wrote:
> On early athlon you prefetch non cached memory and the cpu corrupts its
> cache, on PII, PII mmap frame buffer against a cached page, but the
> right kind of instruction in a loop with the instruction bridging the
> two memory types and run it in a ti
On Mon, 2003-03-03 at 00:01, Antonino Daplas wrote:
> > For some cases. The truth is a bit more horrible, and current fbdev has
> > the same problem here. Any early Athlon, and almost any PII/PIII derived
> > chip allows the user to bring the box down if they have access to
> > a mix of cached and