On 09/04/2014 01:11 PM, Henrique de Moraes Holschuh wrote: > > I am worried of uncharted territory, here. I'd actually advocate for not > enabling the upper four PAT entries on IA-32 at all, unless Windows 9X / XP > is using them as well. Is this a real concern, or am I being overly > cautious? > It is extremely unlikely that we'd have PAT issues in 32-bit mode and not in 64-bit mode on the same CPU. As far as I know, the current blacklist rule is very conservative due to lack of testing more than anything else. -hpa -- 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>