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:
Mar. 01, 2011
Filed:
Feb. 13, 2009
Sanjay Agrawal, Sunnyvale, CA (US);
Thomas W. Simons, Naperville, IL (US);
Peter Heffernan, Eastleigh, GB;
Daniel J. Delfatti, Jr., Half Moon Bay, CA (US);
Sanjay Agrawal, Sunnyvale, CA (US);
Thomas W. Simons, Naperville, IL (US);
Peter Heffernan, Eastleigh, GB;
Daniel J. Delfatti, Jr., Half Moon Bay, CA (US);
Oracle America, Inc., Redwood City, CA (US);
Abstract
Systems and methods ('utility') for providing a computer system with a mechanism to record live data on a continuous basis which may be analyzed subsequent to a fault condition is provided. The utility uses the existing DRAM memory of a computer system as a retentive DRAM (RDRAM) device that may be used to store the data. To accomplish this, software and firmware is provided for continuously refreshing the DRAM memory across resets that are due to fault conditions. Further, non-maskable interrupts (NMI) are used to flag a variety of fault conditions to the computer system. To make the utility platform independent, a standardized power and configuration interface is used to implement a computer system reset that preserves the contents of the RDRAM.