tinyObj12 := runtime.Escape(new(obj12))

	// Try to atomically access "x.a".
	atomic.StoreUint64(&tinyObj12.a, 10)

	runtime.Releasem()
}

func TestPageCacheLeak(t *testing.T) {
	defer GOMAXPROCS(GOMAXPROCS(1))
	leaked := PageCachePagesLeaked()
	if leaked != 0 {
		t.Fatalf("found %d leaked pages in page caches", leaked)
	}
}