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Reliability and Serviceability Check Log

IP.com Disclosure Number: IPCOM000050610D
Original Publication Date: 1982-Nov-01
Included in the Prior Art Database: 2005-Feb-10

Publishing Venue

IBM

Related People

Authors:
Christiansen, RA Hardin, DK Nielsen, LR [+details]

Abstract

A technique is described wherein check logging is done every time a Program Check or Machine Check class interrupt occurs in a processor, such as the IBM Series/1 processor. Logging provides a history of the last 64 class interrupt errors which occurred since power was turned on. Each error logs 16 words as follows: Function Words 8 General Purpose Registers 8 Level Status Register 1 Address Key Register 1 Instruction Address Register 1 Program Status Word 1 2 Native Clocks 2 2 Spares 2 Total 16.