On 05/11/2015 02:42 PM, Linus Torvalds wrote: > > That one - for the same reasons - also checked the actual accesses, > not just that the range was in user mode. Exactly because it needed to > pre-COW the pages (even if that was then obviously racy in threaded > environments - in practice it worked, and we tried to support the > fundamentally broken i386 hardware protection model for a long time). > It worked in part because we never supported SMP on i386. -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html