Method and apparatus for isolating bus failure

Details Method and apparatus for isolating bus failure Method and apparatus for isolating bus failure

2007-08-22

2009-06-02

Baderman, Scott T (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C710S100000, C714S056000

Reexamination Certificate

active

07543191

ABSTRACT:
The embodiments of the present invention disclose a method for isolating a bus failure, which includes: acquiring, from a Compact PCI bus, an address of a target board being accessed; counting retry responses on the Compact PCI bus, wherein the retry responses are generated by access to the target board; sending a reset signal to the target board in response to that the times of the retry responses exceed a retry times threshold. With the embodiments of this invention, the normal operation of a failed device in the system may be restored in time, which may avoid that the bus is hanged up and is favorable for maintenance.

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