for(ptr = active_list_next(&head, NULL); ptr ;ptr = active_list_next(&head, ptr)) {
test = list_entry(ptr, struct active_test, list);
printf ("%s ",test->str);
for(ptr = active_list_next(&head, NULL); ptr ;ptr = active_list_next(&head, ptr)) {
test = list_entry(ptr, struct active_test, list);
printf ("%s ",test->str);