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:
Sep. 02, 2003
Filed:
Feb. 03, 2000
Method and apparatus for tolerating unrecoverable errors in a multi-processor data processing system
Applicant:
Inventors:
Farnaz Mounes-Toussi, Minneaplis, MN (US);
Nicholas A. Poleschuk, Jr., Rochester, MN (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/100 ;
U.S. Cl.
CPC ...
G06F 1/100 ;
Abstract
A directory-based multi-processor computer system is provided with a mechanism for tolerating errors by providing the capability of checking data for errors and, if an error is detected, determining if another valid copy of the data is in the system. If another copy of the data is available, then the data is provided to the processor/memory controller that requested the data, without the need to generate an interrupt.