TAF_INTR_FWD
sc->flags |= TAF_INTR_FWD;
ASSERT(sc->flags & TAF_INTR_FWD);
ASSERT(!(sc->flags & TAF_INTR_FWD));
ASSERT(!(sc->flags & TAF_INTR_FWD));
if ((!(sc->flags & TAF_INTR_FWD)) ||