On Fri, 2014-09-05 at 08:07 -0700, H. Peter Anvin wrote: > On 09/05/2014 07:00 AM, Toshi Kani wrote: > > > > That's a fine idea, but as Ingo also suggested, I am going to disable > > this feature on all Pentium 4 models. That should give us a safety > > margin. Using slot 4 has a benefit that it keeps the PAT setup > > consistent with Xen. > > > > Slot 4 is also the maximally problematic one, because it is the one that > might be incorrectly invoked for the page tables themselves. Good point. I wonder if Xen folks feel strongly about keeping the PAT setup consistent with the kernel. If not, we may choose to use slot 6 (or 7). Thanks, -Toshi -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>