On Wed, Jul 31, 2013 at 10:27 AM, Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> wrote: > On Mon, Jul 29, 2013 at 03:24:46PM +0800, Hillf Danton wrote: >> On Mon, Jul 29, 2013 at 1:31 PM, Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> wrote: >> > alloc_huge_page_node() use dequeue_huge_page_node() without >> > any validation check, so it can steal reserved page unconditionally. >> >> Well, why is it illegal to use reserved page here? > > If we use reserved page here, other processes which are promised to use > enough hugepages cannot get enough hugepages and can die. This is > unexpected result to them. > But, how do you determine that a huge page is requested by a process that is not allowed to use reserved pages? -- 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>