Methods and apparatus for recovering errors with an inter-processor communication link between independently operable processors

A method of operating a processor in a multi-processor system or apparatus, the method comprising:

• determining an error associated with at least one data transaction;
• communicating information relating to the determined error to another processor within the multiprocessor system or apparatus;
• storing data relating to the error;
• and
• subsequently, and substantially in response to the other processor requesting at least some of the transacted data, providing at least a portion of the stored data relating to the error to the other processor.

Error-tolerant integrated circuit apparatus, comprising:

• a first processor;
• a second processor in data communication with the first processor:
• a storage apparatus in data communication with the first processor, the storage apparatus comprising at least one computer program configured to, when executed:
• detect an error associated with at least one data transaction being performed between the first processor and the second processor;
• communicate information relating to the determined error to the second processor;
• recover at least a portion of the transacted data;
• receive a request for at least some of the transacted data from the second processor;
• and
• provide at least a portion of the recovered transacted data to the second processor;
• wherein the first processor, second processor, and storage apparatus are all rendered as integrated circuitry on a common semiconductive die of the integrated circuit apparatus.