Invention Grant
- Patent Title: Systems and methods for memory retention across resets
- Patent Title (中): 复位内存保留的系统和方法
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Application No.: US12371020Application Date: 2009-02-13
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Publication No.: US07900090B2Publication Date: 2011-03-01
- Inventor: Sanjay Agrawal , Thomas W. Simons , Peter Heffernan , Daniel J. Delfatti, Jr.
- Applicant: Sanjay Agrawal , Thomas W. Simons , Peter Heffernan , Daniel J. Delfatti, Jr.
- Applicant Address: US CA Redwood City
- Assignee: Oracle America, Inc.
- Current Assignee: Oracle America, Inc.
- Current Assignee Address: US CA Redwood City
- Agency: Marsh Fischmann & Breyfogle LLP
- Agent Kent A. Lembke; Jonathon A. Szumny
- Main IPC: G06F11/00
- IPC: G06F11/00

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.
Public/Granted literature
- US20100211824A1 SYSTEMS AND METHODS FOR MEMORY RETENTION ACROSS RESETS Public/Granted day:2010-08-19
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