__log_findckp
if ((ret = __log_findckp(lp, &first_lsn)) == DB_NOTFOUND) {
int __log_findckp __P((DB_LOG *, DB_LSN *));
if ((ret = __log_findckp(dblp, &stable_lsn)) != 0) {
if ((err = __log_findckp(log, &log->xa_first)) == DB_NOTFOUND) {