Hardware based memory scrubbing

Details Hardware based memory scrubbing Hardware based memory scrubbing

2005-03-16

2009-02-24

Lamarre, Guy J (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

Reexamination Certificate

active

07496823

ABSTRACT:
This application relates to hardware based memory scrubbing. One disclosed embodiment may comprise a system that includes an engine, implemented in hardware, configured to initiate a request for data residing in associated memory. An error system is configured to detect errors in data that has been read from associated memory in response to the request for the data, the error system maintaining a log of entries corresponding to errors detected by the error system. An identifier is associated with each of the entries in the log that result from the request initiated by the engine to differentiate from other entries in the log.

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R.B. Tremaine, et al., “IBM Memory Expansion Technology (MXT)”, IBM J. Res & Dev. vol. 45 No. 2, Mar. 2001, pp. 271-285.

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