The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 17, 2006
Filed:
Sep. 26, 2003
Jerry Don Ackaret, Beaverton, OR (US);
Barry Eugene Jaked, Holly Springs, NC (US);
Wilson Earl Smith, Bahama, NC (US);
Jerry Don Ackaret, Beaverton, OR (US);
Barry Eugene Jaked, Holly Springs, NC (US);
Wilson Earl Smith, Bahama, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system includes a data processing core coupled to a system memory employing error correction code (ECC) circuitry. The core includes an indicator of when a correctable system memory error occurs and what address is associated with the error. A watchdog timer is instantiated on a system management device. Periodically, the timer prompts the management device to interrupt the processor and poll the error indicator to determine if a memory error has been detected. If an error is detected, the corresponding physical memory address is recorded. If a predetermined number of consecutive errors associated with a single memory address or range of addresses occurs, an alert is issued. In one embodiment, polling the error indicator is infrequent initially. As additional errors are detected, the polling frequency increases. At higher polling frequencies, the system may require a greater number of consecutive errors before taking additional action.