| 摘要 |
A data processing system comprises a plurality of processors, where each processor is coupled to a respective dedicated memory. The data processing system also comprises a voter module that is disposed between the plurality of processors and one or more peripheral devices such as a network interface, output device, input device, or the like. Each processor provides an I/O transaction to the voter module and the voter module determines whether a majority (or predominate) transaction is present among the I/O transactions received from each of the processors. If a majority transaction is present, the voter module releases the majority transaction to the peripheral. However, if no majority transaction is determined, the system outputs a no majority transaction signal (or raises an exception). Also, a processor error signal (or exception) is output for any processor providing an I/O transaction not corresponding to the majority transaction. The error signal may also optionaly prompt the recovery of any or all processors with methods such as but not limited to reboot/reset based upon predetermined or emergent criteria.
|
