Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2005-02-01
2005-02-01
Iqbal, Naseem (Department: 2114)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C711S159000
Reexamination Certificate
active
06851074
ABSTRACT:
The present invention is a system and method for recovering from memory failures in computer systems. The method of the present invention includes the steps of: identifying a predetermined instruction sequence; monitoring for memory access errors in response to the request; logging a memory access error in an error logging register; polling the register for any logged memory access error during execution of the instruction sequence; and raising exceptions, if the memory access error is logged. Within the system of the present invention, memory access errors are stored in an error logging register, machine check abort handles are masked, and memory controllers are under full control of the software so that memory access errors can be intercepted and responded to without necessitating a system reboot or application restart. The present invention is particularly applicable to O/S code which can not otherwise recover from memory errors except by rebooting.
REFERENCES:
patent: 4174537 (1979-11-01), Chu et al.
patent: 4371949 (1983-02-01), Chu et al.
patent: 4811347 (1989-03-01), Bolt
patent: 5261084 (1993-11-01), Hashiguchi et al.
patent: 5428766 (1995-06-01), Seaman
patent: 5644709 (1997-07-01), Austin
patent: 5867642 (1999-02-01), Vivio et al.
patent: 5953530 (1999-09-01), Rishi et al.
patent: 6505305 (2003-01-01), Olarig
Hoyle Stephen
Miloiicic Dejan S.
Munoz Alberto J.
Pong Fong
Russell Lance W.
Dakin, Jr. Lloyd E.
Hewlett-Packard Development Company
Iqbal Naseem
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