Hardware Mark Table for Memory Error Confirmation
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Solution Overview
Problem
Current computer systems lack effective methods for confirming and correcting memory errors in computer memory, leading to potential data inconsistencies and system instability.
Innovation Solution
The implementation of memory logic that detects errors during memory read operations, marks affected locations in a hardware mark table with correction parameters, and retries the operation to determine if the error is correctable, thereby confirming the error and updating the mark table accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If memory errors are detected and marked without confirmation, then error detection speed is improved, but false errors may be recorded leading to data inconsistency
Solution Approach 1:
The system performs a preliminary error detection and marks the error in the hardware mark table before confirmation. This preliminary action allows quick identification of potential errors while the confirmation process validates whether the error is real or transient, thus improving detection speed without sacrificing accuracy.
Solution Approach 2:
The system implements a feedback mechanism by retrying the memory read operation after marking an error. The result of the retry (whether the error persists or disappears) feeds back into the mark table to confirm or clear the error status, ensuring that only confirmed errors are permanently recorded and preventing false error information.
2Measurement precision
If memory read operations are retried to confirm errors, then error accuracy is improved, but system time consumption increases
Solution Approach 1:
The system performs a partial retry action - only retrying specific memory read operations that triggered error marks, rather than retrying all memory operations. This selective approach maintains high error detection accuracy for flagged locations while minimizing the overall time penalty on the memory subsystem.
3Adaptability or versatility
If a hardware mark table is implemented to track memory errors, then error tracking capability is improved, but device complexity increases
Solution Approach 1:
The hardware mark table is designed to be self-managing through automatic error detection, marking, and confirmation processes that occur within the memory logic itself. This self-service approach provides comprehensive error tracking capability while minimizing the need for external control logic or complex management systems.
Data Source
AI summary
Confirming memory marks indicating an error in computer memory including detecting, by memory logic responsive to a memory read operation, an error in at a memory location; marking, by the memory logic in an entry in a hardware mark table, the memory location as containing the error, the entry including one or more parameters for correcting the error; and retrying, by the memory logic, the memory read operation, including: responsive to again detecting the error in the memory location, determining whether the error is correctable at the memory location using the parameters included in the entry; and if the error is correctable at the memory location using the one or more parameters included in the entry, confirming the error in the entry of the hardware mark table.