Another synchronization mechanism for uniprocessor systems consists of disabling all hardware interrupts before entering a critical region and reenabling them right after leaving it.

• 另外一个针对单处理器系统的同步机制是，在进入一个criticalregion之前禁止全部的硬件中断，并且在离开这个criticalregion之后重新打开（允许）硬件中断。