return nil, err
	}

	// If *most* samples have the same second-to-the-bottom frame, it
	// strongly suggests that it is an uninteresting artifact of
	// measurement -- a stack frame pushed by the signal handler. The
	// bottom frame is always correct as it is picked up from the signal
	// structure, not the stack. Check if this is the case and if so,
	// remove.

	// Remove up to two frames.

	// ones. White and grey objects may depend on white and black objects.
	// A dependency on a grey object indicates a cycle which may or may not be
	// valid.
	//
	// When objects turn grey, they are pushed on the object path (a stack);
	// they are popped again when they turn black. Thus, if a grey object (a
	// cycle) is encountered, it is on the object path, and all the objects

// At the time of fill/spill, the offset must be adjusted by the architecture-dependent
// adjustment to hardware SP that occurs in a call instruction.  E.g., for AMD64,
// at Offset+8 because the return address was pushed.
type RegSpill struct {
	Addr           Addr
	Reg            int16
	Spill, Unspill As
}

// A Func represents a Go function. If non-nil, it must be a *ir.Func.
type Func interface {

		w.WriteHeader(http.StatusBadRequest)
		_, _ = w.Write([]byte("Failed to parse request\n"))
		return true
	}
	if req.Form.Get("push") != "" {
		AdsPushAll(s)
		_, _ = fmt.Fprintf(w, "Pushed to %d servers\n", s.adsClientCount())
		return true
	}
	return false
}

// getDebugConnection fetches the Connection requested by proxyID

 public:
  // The c'tor pushes the given source file location and message onto
  // a trace stack maintained by Google Test.
  ScopedTrace(const char* file, int line, const Message& message);

  // The d'tor pops the info pushed by the c'tor.
  //
  // Note that the d'tor is not virtual in order to be efficient.
  // Don't inherit from ScopedTrace!
  ~ScopedTrace();

 private:
  GTEST_DISALLOW_COPY_AND_ASSIGN_(ScopedTrace);

 public:
  // The c'tor pushes the given source file location and message onto
  // a trace stack maintained by Google Test.
  ScopedTrace(const char* file, int line, const Message& message);

  // The d'tor pops the info pushed by the c'tor.
  //
  // Note that the d'tor is not virtual in order to be efficient.
  // Don't inherit from ScopedTrace!
  ~ScopedTrace();

 private:
  GTEST_DISALLOW_COPY_AND_ASSIGN_(ScopedTrace);

	// runtime.cgocallbackg leaves SP unchanged upon return.
	// To save m->curg->sched.pc, we push it onto the curg stack and
	// open a frame the same size as cgocallback's g0 frame.
	// Once we switch to the curg stack, the pushed PC will appear
	// to be the return PC of cgocallback, so that the traceback
	// will seamlessly trace back into the earlier calls.
	MOVW	m_curg(R8), R0
	BL	setg<>(SB)

	go wait.UntilWithContext(ctx, nc.doNoExecuteTaintingPass, scheduler.NodeEvictionPeriod)

	// Incorporate the results of node health signal pushed from kubelet to master.
	go wait.UntilWithContext(ctx, func(ctx context.Context) {
		if err := nc.monitorNodeHealth(ctx); err != nil {
			logger.Error(err, "Error monitoring node health")
		}
	}, nc.nodeMonitorPeriod)

	// runtime.cgocallbackg leaves SP unchanged upon return.
	// To save m->curg->sched.pc, we push it onto the curg stack and
	// open a frame the same size as cgocallback's g0 frame.
	// Once we switch to the curg stack, the pushed PC will appear
	// to be the return PC of cgocallback, so that the traceback
	// will seamlessly trace back into the earlier calls.
	MOVD	m_curg(R8), g
	BL	runtime·save_g(SB)

	// runtime.cgocallbackg leaves SP unchanged upon return.
	// To save m->curg->sched.pc, we push it onto the curg stack and
	// open a frame the same size as cgocallback's g0 frame.
	// Once we switch to the curg stack, the pushed PC will appear
	// to be the return PC of cgocallback, so that the traceback
	// will seamlessly trace back into the earlier calls.
	MOVL	m_curg(BP), SI
	MOVL	SI, g(CX)