// SingleStack (single IPFamily). Services can be SingleStack (single IPFamily),
	// PreferDualStack (two dual-stack IPFamilies on dual-stack clusters or single
	// IPFamily on single-stack clusters), or RequireDualStack (two dual-stack IPFamilies
	// on dual-stack configured clusters, otherwise fail). The IPFamilies and ClusterIPs assigned

	"allocateLoadBalancerNodePorts": "allocateLoadBalancerNodePorts defines if...

	stksize    int64                // stack size for current frame
	stkptrsize int64                // prefix of stack containing pointers

	// alignment for current frame.
	// NOTE: when stkalign > PtrSize, currently this only ensures the offsets of
	// objects in the stack frame are aligned. The stack pointer is still aligned
	// only PtrSize.
	stkalign int64

	// Defines which IP family to use for single stack or the order of IP families for dual-stack.
	// Valid list items are "IPv4", "IPv6".
	// More info: https://kubernetes.io/docs/concepts/services-networking/dual-stack/#services
	IpFamilies []string `protobuf:"bytes,29,rep,name=ipFamilies,proto3" json:"ipFamilies,omitempty"`

		expectedClusterIP:  "None",
		expectedClusterIPs: []string{"None"},
	}, {
		name:               "update - user changed from ClusterIP to None and changed ClusterIPs in a dual stack (new client making a mistake)",
		oldService:         makeServiceWithClusterIp("10.0.0.10", []string{"10.0.0.10", "2000::1"}),
		newService:         makeServiceWithClusterIp("None", []string{"10.0.0.11", "2000::1"}),

		}

		// if more than PodCIDR then
		// - validate for dual stack
		// - validate for duplication
		if len(node.Spec.PodCIDRs) > 1 {
			dualStack, err := netutils.IsDualStackCIDRStrings(node.Spec.PodCIDRs)
			if err != nil {
				allErrs = append(allErrs, field.InternalError(podCIDRsField, fmt.Errorf("invalid PodCIDRs. failed to check with dual stack with error:%v", err)))
			}

	// IPFamilyPolicy represents the dual-stack-ness requested or required by
	// this Service. If there is no value provided, then this field will be set
	// to SingleStack. Services can be "SingleStack" (a single IP family),
	// "PreferDualStack" (two IP families on dual-stack configured clusters or
	// a single IP family on single-stack clusters), or "RequireDualStack"
	// (two IP families on dual-stack configured clusters, otherwise fail). The

	}
}

var http2goroutineSpace = []byte("goroutine ")

func http2curGoroutineID() uint64 {
	bp := http2littleBuf.Get().(*[]byte)
	defer http2littleBuf.Put(bp)
	b := *bp
	b = b[:runtime.Stack(b, false)]
	// Parse the 4707 out of "goroutine 4707 ["
	b = bytes.TrimPrefix(b, http2goroutineSpace)
	i := bytes.IndexByte(b, ' ')
	if i < 0 {
		panic(fmt.Sprintf("No space found in %q", b))
	}