Cooperation o Problems with software solutions: Difficult to program and to verify Processes loop while waiting(busy-wait) Applicable to only to critical problem:Competition for a resource o Cooperating processes must also synchronize 6Cooperation  Problems with software solutions:  Difficult to program and to verify  Processes loop while waiting (busy-wait)  Applicable to only to critical problem: Competition for a resource  Cooperating processes must also synchronize 6