There is also the issue that *mapcount will be decremented even if the pmd turns out not to point to the given page. page_referenced() will stop looking at rmap's candidate mappings once the refcount hits zero, so the decrement will cause an actual mapping to be ignored. -- Michel "Walken" Lespinasse A program is never fully debugged until the last user dies. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>