Invention Grant
US08640006B2 Preemptive memory repair based on multi-symbol, multi-scrub cycle analysis
有权
基于多符号,多擦洗循环分析的抢占式内存修复
- Patent Title: Preemptive memory repair based on multi-symbol, multi-scrub cycle analysis
- Patent Title (中): 基于多符号,多擦洗循环分析的抢占式内存修复
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Application No.: US13171675Application Date: 2011-06-29
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Publication No.: US08640006B2Publication Date: 2014-01-28
- Inventor: Jay W. Carman , Marc A. Gollub , Anshuman Khandual , Jyotindra Patel
- Applicant: Jay W. Carman , Marc A. Gollub , Anshuman Khandual , Jyotindra Patel
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: DeLizio Gilliam, PLLC
- Main IPC: G11C29/00
- IPC: G11C29/00

Abstract:
An apparatus includes a processor, a memory, and an error module operable on the processor. The error module is configured to perform a memory scrub of the memory across a scrub cycle of multiple scrub cycles. The error module is configured to identify correctable errors of symbols in the memory that are a result of accesses from a section of the memory in response to the memory scrub. The error module is configured to perform an analysis across the multiple scrub cycles, wherein the analysis comprises a determination whether at least two symbols across the multiple scrub cycles have at least one correctable error. The error module is configured to responsive to a determination that at least two symbols across the multiple scrub cycles have at least one correctable error, execute at least one repair of the memory that includes the section of memory.
Public/Granted literature
- US20130007541A1 PREEMPTIVE MEMORY REPAIR BASED ON MULTI-SYMBOL, MULTI-SCRUB CYCLE ANALYSIS Public/Granted day:2013-01-03
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