On Tue, Dec 11, 2012 at 11:41:04AM +0900, Minchan Kim wrote: > - What's the madvise(addr, length, MADV_VOLATILE)? > > It's a hint that user deliver to kernel so kernel can *discard* > pages in a range anytime. > > - What happens if user access page(ie, virtual address) discarded > by kernel? > > The user can see zero-fill-on-demand pages as if madvise(DONTNEED). What happened to getting SIGBUS? Mike -- 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>