// this before waking blocked assists.
	atomic.Store(&gcBlackenEnabled, 0)

	// Notify the CPU limiter that GC assists will now cease.
	gcCPULimiter.startGCTransition(false, now)

	// Wake all blocked assists. These will run when we
	// start the world again.
	gcWakeAllAssists()

	// Likewise, release the transition lock. Blocked
	// workers and assists will run when we start the

// condition.
//
//go:nowritebarrierrec
func gcFlushBgCredit(scanWork int64) {
	if work.assistQueue.q.empty() {
		// Fast path; there are no blocked assists. There's a
		// small window here where an assist may add itself to
		// the blocked queue and park. If that happens, we'll
		// just get it on the next flush.
		gcController.bgScanCredit.Add(scanWork)
		return
	}

	pid := ProcID(ev.args[0])
	// N.B. In practice Ps can't block while they're sweeping, so this can only
	// ever reference curCtx.P. However, be lenient about this like we are with
	// GCMarkAssistActive; there's no reason the runtime couldn't change to block
	// in the middle of a sweep.
	pState, ok := o.pStates[pid]
	if !ok {

	defer c.finishDispatching()
	// Watchers stopped after startDispatching will be delayed to finishDispatching,

	// Since add() can block, we explicitly add when cacher is unlocked.
	// Dispatching event in nonblocking way first, which make faster watchers
	// not be blocked by slower ones.
	if event.Type == watch.Bookmark {
		for _, watcher := range c.watchersBuffer {
			watcher.nonblockingAdd(event)
		}

// SetBlockProfileRate controls the fraction of goroutine blocking events
// that are reported in the blocking profile. The profiler aims to sample
// an average of one blocking event per rate nanoseconds spent blocked.
//
// To include every blocking event in the profile, pass rate = 1.
// To turn off profiling entirely, pass rate <= 0.
func SetBlockProfileRate(rate int) {
	var r int64
	if rate <= 0 {

		}
	}

	// Ensure there is some budget for slowing down processing.
	// We use the fakeTimeBudget to prevent this test from flaking under
	// the following conditions:
	// 1) the watch w1 is blocked, so we were consuming the whole budget once
	//    its buffer was filled in (10 items)
	// 2) the budget is refreshed once per second, so it basically wasn't
	//    happening in the test at all

	go tRunner(t, f)

	// The parent goroutine will block until the subtest either finishes or calls
	// Parallel, but in general we don't know whether the parent goroutine is the
	// top-level test function or some other goroutine it has spawned.
	// To avoid confusing false-negatives, we leave the parent in the running map
	// even though in the typical case it is blocked.

	if !<-t.signal {

	{45, "EDEADLK", "deadlock condition if locked"},
	{46, "ENOTREADY", "device not ready"},
	{47, "EWRPROTECT", "write-protected media"},
	{48, "EFORMAT", "unformatted or incompatible media"},
	{49, "ENOLCK", "no locks available"},
	{50, "ENOCONNECT", "cannot Establish Connection"},
	{52, "ESTALE", "missing file or filesystem"},
	{53, "EDIST", "requests blocked by Administrator"},

	{45, "EDEADLK", "deadlock condition if locked"},
	{46, "ENOTREADY", "device not ready"},
	{47, "EWRPROTECT", "write-protected media"},
	{48, "EFORMAT", "unformatted or incompatible media"},
	{49, "ENOLCK", "no locks available"},
	{50, "ENOCONNECT", "cannot Establish Connection"},
	{52, "ESTALE", "missing file or filesystem"},
	{53, "EDIST", "requests blocked by Administrator"},

		} else {
			print(" m=nil")
		}
	}
	print(" [", status)
	if isScan {
		print(" (scan)")
	}
	if waitfor >= 1 {
		print(", ", waitfor, " minutes")
	}
	if gp.lockedm != 0 {
		print(", locked to thread")
	}
	print("]:\n")
}

func tracebackothers(me *g) {
	level, _, _ := gotraceback()

	// Show the current goroutine first, if we haven't already.