On Wed, 28 Jun 2017, Ralf Baechle wrote: > > How far beyond the data copied do we prefetch anyway, and can't we simply > > waste a page's worth of space or so at the physical end of each RAM area > > present in a given system? Or perhaps use it for something we know for > > sure that won't ever be copied. > > Prefetching may also bring data which has just been flushed back into > caches so until this is fixed properly it's not a good idea on non-coherent > platforms. That's a third issue though, independent from the other two! Maciej
