Lockstep processor bus monitoring method and computer

Abstract

The invention relates to a lockstep processor bus monitoring method and computer and is used for achieving real-time high-probability fault detection and isolation of computers. According to the lockstep processor bus monitoring method and computer, bus lockstep monitoring circuit modules perform synchronous bit-bit comparison on the bus periodic operation transactions such as reading, writing, interruption and exception handling of two processors. A first processor is connected with a first bus lockstep monitoring module and a second bus lockstep monitoring module respectively; a second processor is connected with the first bus lockstep monitoring module and the second bus lockstep monitoring module respectively; the first bus lockstep monitoring module and the second bus lockstep monitoring module are mutually connected; a first bus bridge conversion module achieves bridging of the first bus lockstep monitoring module between a PCI (peripheral component interconnect) bus and the like, and a second bus bridge conversion module achieves the bridging between the second bus lockstep monitoring module and the PCI bus and the like. The lockstep processor bus monitoring method and computer is high in fault detection rate, good in fault detection timeliness and convenient to achieve.

Description

technical field

[0001] The invention belongs to computer technology, and relates to a lock-step processor bus monitoring method and a computer. Background technique

[0002] The high fault detection rate of computer is very important for its application in safety-critical fields. Traditional computer fault detection is mainly realized by watchdog, closed-loop detection and other methods. It is difficult to achieve a fault detection rate of more than 98%. Comparing calculation results and monitoring can achieve a high fault detection rate, but the real-time performance of fault detection is not high. . Lock-step (Lock-Step) computer is another method to achieve high-integrity computing. Lock-Step can detect faults with a high probability and detect faults in real time. Contents of the invention

[0003] The purpose of the present invention is: in order to solve the problem in background technology, provide a kind of lock-step processor bus monitoring method and computer, ...

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