On Fri, Oct 04, 2002 at 02:33:53PM +0200, Hartvig Ekner wrote: > this problem occurs in kernel space (kseg0), not user space. In user space > there is no problem due to the TLB "protection" of PREFs going outside the > process working set, but that doesn't help in kernel mode. Assume a userspace device driver having some hardware mapped immediately following a ordinary memory mapping. In that case it would be possible for prefetch to run from the one into the next mapping - boom. Ralf
