//  // <----> problem window
	//	casgstatus(gp, _Gwaiting, _Grunnable)
	//	if trace.ok() {
	//		trace.GoUnpark(gp, 2)
	//		traceRelease(trace)
	//	}
	//
	// More precisely, if we readgstatus for a gp while another goroutine is in the problem
	// window and that goroutine didn't observe that tracing had begun, then we might write
	// a GoStatus(GoWaiting) event for that goroutine, but it won't trace an event marking

		lock(&finlock)
		// We know the queue has been drained when both finq is nil
		// and the finalizer g has stopped executing.
		empty := finq == nil
		empty = empty && readgstatus(fing) == _Gwaiting && fing.waitreason == waitReasonFinalizerWait
		unlock(&finlock)
		if empty {
			return true
		}
		Gosched()
	}
	return false
}

		status = gStatusStrings[gpstatus]
	} else {
		status = "???"
	}

	// Override.
	if gpstatus == _Gwaiting && gp.waitreason != waitReasonZero {
		status = gp.waitreason.String()
	}

	// approx time the G is blocked, in minutes
	var waitfor int64
	if (gpstatus == _Gwaiting || gpstatus == _Gsyscall) && gp.waitsince != 0 {
		waitfor = (nanotime() - gp.waitsince) / 60e9
	}

	// preempt.
	// This check is very early in newstack so that even the status change
	// from Grunning to Gwaiting and back doesn't happen in this case.
	// That status change by itself can be viewed as a small preemption,
	// because the GC might change Gwaiting to Gscanwaiting, and then
	// this goroutine has to wait for the GC to finish before continuing.

		// rather than starting all in a batch and then waiting once
		// afterwards. By running one goroutine at a time, we can take
		// advantage of runnext to bounce back and forth between
		// workers and this goroutine. In an overloaded application,
		// this can reduce GC start latency by prioritizing these
		// goroutines rather than waiting on the end of the run queue.
		<-ready

}

// emitUnblockStatus emits a GoStatus GoWaiting event for a goroutine about to be
// unblocked to the trace writer.
func emitUnblockStatus(w traceWriter, gp *g, gen uintptr) traceWriter {
	if !gp.trace.statusWasTraced(gen) && gp.trace.acquireStatus(gen) {
		// TODO(go.dev/issue/65634): Although it would be nice to add a stack trace here of gp,
		// we cannot safely do so. gp is in _Gwaiting and so we don't have ownership of its stack.

type G = g

type Sudog = sudog

func Getg() *G {
	return getg()
}

func Goid() uint64 {
	return getg().goid
}

func GIsWaitingOnMutex(gp *G) bool {
	return readgstatus(gp) == _Gwaiting && gp.waitreason.isMutexWait()
}

var CasGStatusAlwaysTrack = &casgstatusAlwaysTrack

//go:noinline
func PanicForTesting(b []byte, i int) byte {
	return unexportedPanicForTesting(b, i)
}

		}
		// Run a fractional worker.
		pp.gcMarkWorkerMode = gcMarkWorkerFractionalMode
	}

	// Run the background mark worker.
	gp := node.gp.ptr()
	trace := traceAcquire()
	casgstatus(gp, _Gwaiting, _Grunnable)
	if trace.ok() {
		trace.GoUnpark(gp, 0)
		traceRelease(trace)
	}
	return gp, now
}

// resetLive sets up the controller state for the next mark phase after the end

		return traceviewer.GDead
	case trace.GoRunnable:
		return traceviewer.GRunnable
	case trace.GoRunning:
		return traceviewer.GRunning
	case trace.GoWaiting:
		if inMarkAssist {
			return traceviewer.GWaitingGC
		}
		return traceviewer.GWaiting
	case trace.GoSyscall:
		// N.B. A goroutine in a syscall is considered "executing" (state.Executing() == true).
		return traceviewer.GRunning
	default:

				{"sync.(*Mutex).Lock", 0},
				{"main.main.func7", 0},
			}},
			{trace.EventStateTransition, "Goroutine Waiting->Runnable", []frame{
				{"sync.(*Mutex).Unlock", 0},
				{"main.main", 0},
			}},
			{trace.EventStateTransition, "Goroutine Running->Waiting", []frame{
				{"sync.(*WaitGroup).Wait", 0},
				{"main.main.func8", 0},
			}},