Method and apparatus for recovering from corrupted system...

Details Method and apparatus for recovering from corrupted system... Method and apparatus for recovering from corrupted system...

2006-04-04

2006-04-04

Du, Thuan (Department: 2116)

Electrical computers and digital processing systems: support

Digital data processing system initialization or configuration

Loading initialization program

C714S023000, C714S055000

Reexamination Certificate

active

07024550

ABSTRACT:
The disclosed embodiments relate generally to providing increased data integrity in computer systems and, more particularly, to using a system management processor to overcome a computer system failure because of corrupted programming. A system management processor detects an attempted boot by host computer system and starts a watchdog timer. If the system BIOS or other firmware fails to execute, the watchdog timer expires and the system management processor places the system processor(s) in a reset state. The system management processor provides the address of a back-up BIOS or firmware and releases the system processor(s) from the reset state. The system processor(s) are redirected to the back-up BIOS or firmware and the computer system is able to boot.

REFERENCES:
patent: 5797023 (1998-08-01), Berman et al.
patent: 6119228 (2000-09-01), Angelo et al.
patent: 6158000 (2000-12-01), Collins
patent: 6185696 (2001-02-01), Noll
patent: 6321278 (2001-11-01), Phu et al.
patent: 6651188 (2003-11-01), Harding et al.
patent: 2001/0016918 (2001-08-01), Alexander et al.

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