Method and device for detecting memory unit
A technology for memory units and devices, applied in error detection/correction, memory address/allocation/relocation, instrumentation, etc., to solve problems such as repeated MMU address release and system paralysis
Inactive Publication Date: 2014-08-13
HUAWEI TECH CO LTD
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Problems solved by technology
[0005] When the storage access module releases the MMU address of the memory unit to the memory management module, the MMU address of the same memory unit may be released repeatedly; and when the storage access module applies for a memory unit from the memory management module, the memory management module may issue the same The MMU address of the memory unit is allocated repeatedly, which may cause system paralysis
Method used
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[0023] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0024] see figure 1 , the embodiment of the present invention provides a method for detecting a memory unit, including:
[0025] Step 101: Obtain the address of the memory unit, the address of the memory unit is the address of the memory unit to be released by the storage access module or the address of the memory unit allocated for the memory management module, and the memory unit is a memory unit in the external cache;
[0026] Step 102: Obtain the memory state of the memory unit according to the address of the memory unit;
[0027] Step 103: Detect the legality of the address of the memory unit according to the memory state of the memory unit;
[0028] Step 104: If the address of the memory unit is legal and the address of the mem...
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The invention discloses a method and a device for detecting a memory unit, and belongs to the field of computers. The method comprises the steps of obtaining an address of the memory unit, wherein the address of the memory unit is an address of a memory unit which needs to be released by a memory access module or an address of a memory unit which is allocated by a memory management module; obtaining a memory state of the memory unit according to the address of the memory unit; detecting the legitimacy of the address of the memory unit according to the memory state of the memory unit; controlling the memory management module to recycle the address of the memory unit if the address of the memory unit is legal and is the address of the memory unit which needs to be released by the memory access module; allocating the address of the memory unit to the memory access module if the address of the memory unit is legal and is the address of the memory unit which is allocated by the memory management module. According to the method and the device for detecting the memory unit, disclosed by the invention, system breakdown can be prevented from being caused.
Description
technical field [0001] The invention relates to the field of computer and communication, in particular to a method and equipment for detecting a memory unit. Background technique [0002] With the increase of information capacity in the network, network devices will cache a large amount of data in the external cache during data processing, and effectively manage the external cache in the process of processing data to make full use of the external cache. bandwidth and capacity. [0003] The network device manages the external cache through the storage access module and the memory management module, wherein the external cache is divided into multiple memory units, and the memory management module includes the MMU (Memory Management Unit, memory management unit) of the free memory unit in the external cache unit) address; when the storage access module needs to cache data in the external cache, it applies for a memory unit from the memory management module, and the memory mana...
Claims
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Login to View More IPC IPC(8): G06F11/00G06F12/02
Inventor 江龙戴崇经张朋
Owner HUAWEI TECH CO LTD