TDF_DELAYED_WAKEUP
if (td && (td->td_flags & TDF_DELAYED_WAKEUP)) {
gd->gd_curthread->td_flags |= TDF_DELAYED_WAKEUP;
if (gd->gd_curthread->td_flags & TDF_DELAYED_WAKEUP) {
gd->gd_curthread->td_flags &= ~TDF_DELAYED_WAKEUP;
if (td->td_flags & TDF_DELAYED_WAKEUP)