DR> It doesn't "ensure" anything without CONFIG_DEBUG_VM enabled, which DR> isn't the default. Are you proposing a change in verbiage or a stronger check? A VM_BUG_ON() seemed on par with other checks, such as the one in get_user_pages_fast(). -- Dan Smith IBM Linux Technology Center email: danms@xxxxxxxxxx -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>