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    • 8. 发明授权
    • Method and apparatus for prioritizing and handling errors in a computer system
    • 在计算机系统中优先处理和处理错误的方法和装置
    • US06446224B1
    • 2002-09-03
    • US08397910
    • 1995-03-03
    • Chih-Wei David ChangJoel Frederick BoneyJaspal Kohli
    • Chih-Wei David ChangJoel Frederick BoneyJaspal Kohli
    • H02H305
    • G06F11/073G06F11/0793
    • A computer system includes a central processing unit and a memory management unit having a plurality of functional units, such as a memory interface unit, a remote interface unit, a cache interface unit, and a translation unit. Each functional unit has a low priority error queue for storing error information for errors having a low priority. Some functional units also have a high priority error queue for storing error information for errors having a high priority error. Based on the status of the error queues, the memory management unit prioritizes and handles errors caused by hardware failures. For low priority errors, an interrupt request signal is sent to the central processing unit. For high priority errors, a RED ALERT signal is sent to the processing unit to cause the processing unit to give immediate attention to the error. For high priority error queue overflows, a failure signal is generated which causes the system to be halted and the contents of the system to be scanned out. Thus, errors are prioritized and handled accordingly.
    • 计算机系统包括中央处理单元和具有多个功能单元(诸如存储器接口单元,远程接口单元,高速缓存接口单元和翻译单元)的存储器管理单元。 每个功能单元具有用于存储具有低优先级的错误的错误信息的低优先级错误队列。 一些功能单元还具有用于存储具有高优先级错误的错误的错误信息的高优先级错误队列。 基于错误队列的状态,内存管理单元优先处理和处理由硬件故障引起的错误。 对于低优先级错误,中断请求信号被发送到中央处理单元。 对于高优先级错误,RED ALERT信号被发送到处理单元,以使处理单元立即注意该错误。 对于高优先级错误队列溢出,会产生一个故障信号,导致系统暂停,并将系统内容扫描出来。 因此,错误被优先排列并相应处理。