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Random storage failure detecting and processing method, device and system

A random access memory and processing method technology, applied in the detection field, can solve problems such as large business impact, inability to recover in real time, heavy manual maintenance workload, etc., and achieve the effect of reducing labor costs

Active Publication Date: 2008-09-24
HUAWEI TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] First, from the detection mechanism, the existing technology uses the CPU / DSP's own program to detect the RAM program content of the CPU / DSP, and uses an even parity method, which has the risk of not being able to achieve complete and accurate detection
[0011] Second, the processing after the failure still depends on the manual method. Relatively speaking, the workload of manual maintenance is relatively large, and at the same time, it cannot be restored in real time, which has a great impact on the business

Method used

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] For actual products, CPU / DSP can be divided into two application types according to the characteristics of whether its storage space can be accessed by high-level: one type of CPU / DSP storage space can be controlled by high-level entities (for example, high-level CPU or DSP can be used) DSP as a control entity) access, for the convenience of description, it is referred to as class A for short; the storage space of another type of CPU / DSP cannot be accessed by high-level control entities, it is referred to as class B for short. The technical solution provided by the embodiment of the present invention is mainly aimed at the storage space RAM of a class A CPU / DSP.

[0025] In addition, the RAM space of the CPU / DSP is divided into two parts: program content an...

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Abstract

The invention discloses method, a device and a system for detecting and treating RAM invalidation, which is applicable to the detection and treatment of RAM invalidation of CPU / DSP; wherein, the method includes obtaining RAM program content and comparing the obtained program content with accurate program content; conducting data repair of the error program content by using the accurate program content if the error rate of the RAM program content is lower than the preset value; evaluating whether the data repair is successful or not through detecting CPU / DSP data treatment after the data repair; reloading and repairing the RAM program content by a resetting way if the data repair fails according to the evaluation result. The technical proposal provided by the invention can timely and accurately conduct the automatic repair based on RAM invalidation, reduce the impact of RAM invalidation on business and decrease the labor cost.

Description

technical field [0001] The invention relates to the field of detection, in particular to a method, device and system for detecting and processing the failure of a CPU / DSP RAM storage space. Background technique [0002] Devices with random access memory (RAM) will fail due to various reasons during their life cycle. Generally speaking, if the hardware itself is damaged, we call it a device hard failure (Firm Error), otherwise, it is called soft failure of the device (Soft Error). [0003] Soft failure is mainly caused by the impact of charged particles on the memory unit RAM of the device. These high-energy particles interact with the atoms of the semiconductor memory to generate electron-hole pairs, which lead to changes in the information stored in the memory unit, which in turn leads to device function mistake. [0004] At the end of the 1970s, engineers discovered the phenomenon of soft failure. The reason at that time was that the radioactive impurities in the device ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/28G11C29/44
Inventor 方向
Owner HUAWEI TECH CO LTD
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