Watchdog mechanism with fault escalation

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

Reexamination Certificate

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C714S051000, C714S735000, C714S736000, C714S742000, C709S201000, C709S202000, C709S203000, C709S208000, C709S209000, C709S210000, C709S211000

Reexamination Certificate

active

07966528

ABSTRACT:
A method for handling watchdog events of an electronic device includes detecting a watchdog fault in a normal mode, which is a watchdog event in which a watchdog trigger is not correctly serviced; entering from the normal mode into a first escalation level of nx escalation levels upon detection of the watchdog fault, wherein nx is an integer equal to or greater than 1; detecting correct watchdog events, which are watchdog events in which a watchdog trigger is correctly serviced; and concurrently detecting watchdog faults, leaving the first escalation level if a first escalation condition is met. An electronic device embodiment includes a CPU and program instructions for carrying out the method.

REFERENCES:
patent: 5848143 (1998-12-01), Andrews et al.
patent: 5961622 (1999-10-01), Hudson et al.
patent: 6941247 (2005-09-01), Voigt et al.
patent: 7277783 (2007-10-01), Predelli
patent: 2001/0016789 (2001-08-01), Staiger
patent: 2003/0105537 (2003-06-01), Crispin et al.
patent: 2004/0153747 (2004-08-01), Czajkowski
patent: 2004/0225381 (2004-11-01), Ritz et al.
patent: 2009/0172036 (2009-07-01), Marx
patent: 2329266 (1999-03-01), None
Lyu, (Software Fault Tolerance in a clustered architecture: Techniques and Reliability Modeling), 1999, IEEE, 1-11.
U.S. Appl. No. 12/181,133, filed Jul. 28, 2008.

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