SCF_CHAN_NOSLOT
if ((sc->sc_flags & SCF_CHAN_NOSLOT) && (sem & A_sem_start)) {
sc->sc_flags &= ~SCF_CHAN_NOSLOT;
if (sc->sc_flags & SCF_CHAN_NOSLOT) {
sc->sc_flags &= ~SCF_CHAN_NOSLOT;
sc->sc_flags |= SCF_CHAN_NOSLOT;
if (sc->sc_flags & SCF_CHAN_NOSLOT) {
sc->sc_flags &= ~SCF_CHAN_NOSLOT;
sc->sc_flags |= SCF_CHAN_NOSLOT;
if (sc->sc_flags & SCF_CHAN_NOSLOT) {
sc->sc_flags &= ~SCF_CHAN_NOSLOT;