print("nil")
		}
		print("\n")
	})
	unlock(&sched.lock)
}

// schedEnableUser enables or disables the scheduling of user
// goroutines.
//
// This does not stop already running user goroutines, so the caller
// should first stop the world when disabling user goroutines.
func schedEnableUser(enable bool) {
	lock(&sched.lock)
	if sched.disable.user == !enable {
		unlock(&sched.lock)