var (
		hasSchedWaitTime    bool
		hasSyncBlockTime    bool
		hasGCMarkAssistTime bool
	)

	assertContainsGoroutine(t, summaries, "runtime.gcBgMarkWorker")
	assertContainsGoroutine(t, summaries, "main.main.func1")

	for _, summary := range summaries {
		basicGoroutineSummaryChecks(t, summary)
		hasSchedWaitTime = hasSchedWaitTime || summary.SchedWaitTime > 0

	}

	if debug.gcshrinkstackoff > 0 {
		return
	}
	f := findfunc(gp.startpc)
	if f.valid() && f.funcID == abi.FuncID_gcBgMarkWorker {
		// We're not allowed to shrink the gcBgMarkWorker
		// stack (see gcBgMarkWorker for explanation).
		return
	}

	oldsize := gp.stack.hi - gp.stack.lo
	newsize := oldsize / 2
	// Don't shrink the allocation below the minimum-sized stack
	// allocation.

//
//go:linkname goarmsoftfp

var (
	// Pool of GC parked background workers. Entries are type
	// *gcBgMarkWorkerNode.
	gcBgMarkWorkerPool lfstack

	// Total number of gcBgMarkWorker goroutines. Protected by worldsema.
	gcBgMarkWorkerCount int32

	// Information about what cpu features are available.
	// Packages outside the runtime should not use these
	// as they are not an external api.