// to the original namespace; otherwise leave the thread locked which
				// will force the runtime to scrap the current thread, that is maybe
				// not as optimal but at least always safe to do.
				runtime.UnlockOSThread()
			}
		}()

		return toRun()
	}

	var wg sync.WaitGroup
	wg.Add(1)

	// Start the callback in a new green thread so that if we later fail

pkg runtime, func SetFinalizer(interface{}, interface{})
pkg runtime, func Stack([]uint8, bool) int
pkg runtime, func ThreadCreateProfile([]StackRecord) (int, bool)
pkg runtime, func UnlockOSThread()
pkg runtime, func Version() string
pkg runtime, method (*Func) Entry() uintptr
pkg runtime, method (*Func) FileLine(uintptr) (string, int)
pkg runtime, method (*Func) Name() string