Detecting and isolating errors occurring in data communication i

Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability

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714 4, 714 18, 714 49, H02H 305

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active

061516899

ABSTRACT:
A multiprocessor system includes a number of sub-processor systems, each substantially identically constructed, and each comprising a central processing unit (CPU), and at least one I/O device, interconnected by routing apparatus that also interconnects the sub-processor systems. A CPU of any one of the sub-processor systems may communicate, through the routing elements, with any I/O device of the system, or with any CPU of the system. Communications between I/O devices and CPUs is by packetized messages. Interrupts from I/O devices are communicated from the I/O devices to the CPUs (or from one CPU to another CPU) as message packets. CPUs and I/O devices may write to, or read from, memory of a CPU of the system. Memory protection is provided by an access validation method maintained by each CPU in which CPUs and/or I/O devices are provided with a validation to read/write memory of that CPU, without which memory access is denied.

REFERENCES:
patent: 3826908 (1974-07-01), Weathers et al.
patent: 4390989 (1983-06-01), Pehrson
patent: 4455622 (1984-06-01), Loskorn et al.
patent: 4470127 (1984-09-01), Thompson
patent: 4621323 (1986-11-01), Mayhew
patent: 4698810 (1987-10-01), Fukuda et al.
patent: 4922494 (1990-05-01), Pirani et al.
patent: 4959849 (1990-09-01), Bhusri
patent: 4970714 (1990-11-01), Chen et al.
patent: 4980857 (1990-12-01), Walter et al.
patent: 5014273 (1991-05-01), Gagliardo et al.
patent: 5084871 (1992-01-01), Carn et al.
patent: 5153884 (1992-10-01), Lucak et al.
patent: 5167034 (1992-11-01), MacLean, Jr. et al.
patent: 5313627 (1994-05-01), Amini et al.
patent: 5335233 (1994-08-01), Nagy
patent: 5347524 (1994-09-01), I'Anson et al.
patent: 5371731 (1994-12-01), Pratt et al.
patent: 5410650 (1995-04-01), Sasaki et al.
patent: 5463762 (1995-10-01), Morrissey et al.
patent: 5490250 (1996-02-01), Reschke et al.
patent: 5519693 (1996-05-01), Galuszka et al.
patent: 5594869 (1997-01-01), Hawe et al.
patent: 5640511 (1997-06-01), Botzenhardt et al.
patent: 5758053 (1998-05-01), Takeuchi et al.
patent: 5761413 (1998-06-01), Frank et al.

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