if p.NoEnvoy {
		return nil
	}
	if p.Context == nil {
		return p.checkEnvoyReadiness()
	}
	select {
	case <-p.Context.Done():
		return fmt.Errorf("server is not live, current state is: %s", StateString(Draining))
	default:
		return p.checkEnvoyReadiness()
	}
}

func (p *Probe) checkEnvoyReadiness() error {
	// If Envoy is ready at least once i.e. server state is LIVE and workers

	endState := stateAtPC{slots: make([]VarLoc, len(s.slots)), registers: make([][]SlotID, len(s.registers))}
	endState.reset(b.endState)
	return s.stateString(endState)
}

func (s *debugState) stateString(state stateAtPC) string {
	var strs []string
	for slotID, loc := range state.slots {
		if !loc.absent() {
			strs = append(strs, fmt.Sprintf("\t%v = %v\n", s.slots[slotID], s.LocString(loc)))