On Fri, 25 Jan 2013, Simon Jeons wrote: > > > > node_match(NULL, xx) = 0 > > > > -> > > > > call into __slab_alloc. > > > > __slab_alloc() will check for !c->page which requires the assignment of a > > new per cpu slab page. > > > > But there are dereference in page_to_nid path, function page_to_section: > return (page->flags >> SECTIONS_PGSHIFT) & SECTIONS_MASK; node_match() checks for NULL and will not invoke page_to_nid for a NULL pointer. -- 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>