On Friday, June 1, 2007 2:19:43 Andi Kleen wrote: > And normally the MTRRs win, don't they (if I remember the table correctly) > So if the MTRR says UC and PAT disagrees it might not actually help
I just checked, yes the MTRRs win for UC types. But it sounds like the cases we're talking about are actually situations where there's no MTRR coverage, so the default type is used. The manual doesn't specifically call out how memory using the default type interacts with PAT, but it may well be that it stays uncached if the default type is uncached. Again that argues for fixing the MTRR mapping problem in some way. Thanks, Jesse - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
