Hi, Given how our memory manager works and the guesswork that UMDs have to do to determine whether to set the flag, I think the flag isn't useful. I'm proposing that CPU_ACCESS_REQUIRED: - will be deprecated. - It will remain to be accepted by the kernel driver, but it will either not have any effect, or it will serve as a hint that might or might not be followed. - The only flag that UMDs are expected to set with regard to CPU access is NO_CPU_ACCESS. The main motivation is the reduction of "virtual" heaps for UMD buffer suballocators and reusable buffer pools. A higher number of heaps means that more memory can be wasted by UMDs. Opinions? Thanks, Marek
