KCOV_STATE_TRACE
if (kd->kd_state == KCOV_STATE_TRACE && kd->kd_kr == NULL) {
kd->kd_state = KCOV_STATE_TRACE;
if (kd->kd_state != KCOV_STATE_TRACE) {
if (kd == NULL || kd->kd_state != KCOV_STATE_TRACE)
kc->kc_kd.kd_state = KCOV_STATE_TRACE;