CN110727528A - Memory failure recovery method, apparatus, electronic device and storage medium - Google Patents

Abstract

The present application relates to the field of memory technologies, and in particular, to a memory failure recovery method, apparatus, electronic device, and storage medium. The memory failure recovery method includes: unloading a file system, wherein the file system is mounted with a memory; after successfully unloading the file system, unloading the memory driver; after successfully unloading the memory driver, powering off the memory for a preset time and then powering on; Load the memory driver; after successfully loading the memory driver, mount the file system of the memory. The technical solution of the present application can quickly restore the memory to normal operation after the memory fails. The technical solution of the present application to restore the memory to normal operation is simple, the user of the memory cannot feel the memory failure, and the user experience is better, and No additional hardware cost.

Description

Memory failure recovery method, apparatus, electronic device and storage medium

technical field

The present application relates to the field of memory technologies, and in particular, to a memory failure recovery method, apparatus, electronic device, and storage medium.

Background technique

Memory, such as Embedded Multi Media Card (eMMC), can be used as a mass storage device for many electronic devices such as smart phones, tablet computers and mobile Internet devices, and it is increasingly used in many industrial and embedded applications field.

For example, in the telematics BOX (TBOX), in order to save the vehicle data locally, save the log and other data, it is inevitable to use eMMC. However, the use environment of the car is complex. During the use process, the eMMC will inevitably fail due to unstable power supply, static electricity, interference, etc., resulting in the inability to save data. To restore the eMMC to work normally, the system must be restarted. However, it takes a long time to restart the system, which will seriously affect the user experience and cause user complaints.

Therefore, how to provide a solution that can quickly recover the memory failure is a technical problem to be solved urgently by those skilled in the art.

SUMMARY OF THE INVENTION

The present application provides a memory failure recovery method, device, electronic device and storage medium, aiming to solve the technical problem of inconvenient recovery when a memory failure occurs in the prior art.

In a first aspect, the present application provides a memory failure recovery method, the memory failure recovery method comprising:

unmounting a file system, wherein the file system is mounted with a memory;

After unmounting the file system successfully, unmount the memory driver;

After unloading the memory driver successfully, power off the memory for a preset time and then power on;

load memory driver;

After the memory driver is loaded successfully, mount the file system of the memory.

Preferably, before the loading of the memory driver, the memory failure recovery method further includes:

Determine whether the memory driver is uninstalled successfully.

Preferably, the judging whether the memory driver is uninstalled successfully includes:

Check whether the device file exists. If the device file does not exist, it is judged that the memory driver is uninstalled successfully.

Preferably, before the unloading of the memory driver, the memory failure recovery method further includes:

Check whether the file system is unmounted successfully.

Preferably, before the file system of the storage is mounted, the storage failure recovery method further includes:

Determine whether the memory driver is loaded successfully.

Preferably, the judging whether the memory driver is loaded successfully includes:

Check whether the device file exists. If the device file exists, it is judged that the memory driver is loaded successfully.

Preferably, in the unmounting of the file system, the file system is unmounted by calling an unmount command.

In a second aspect, the present application further provides a memory failure recovery device, the memory failure recovery device includes:

an unmounting module for unmounting a file system, wherein the file system is mounted with a memory;

Uninstall module, used to uninstall the memory driver after the file system is successfully uninstalled;

The electronic control module is used to power on the memory after a preset time after unloading the memory driver successfully;

The loading module is used to load the memory driver after successfully unloading the memory driver;

The mount module is used to mount the file system of the memory after the memory driver is loaded successfully.

Preferably, the memory failure recovery device further includes:

The first judging module is used for judging whether the unloading of the file system is successful.

Preferably, the memory failure recovery device further includes:

The second judging module is used for judging whether the memory driver is uninstalled successfully.

Preferably, the memory failure recovery device further includes:

The third judging module is used for judging whether the memory driver is loaded successfully.

Preferably, the second judging module is specifically configured to detect whether the device file exists, and if the device file does not exist, it is judged that the memory driver is uninstalled successfully.

Preferably, the third judgment module is specifically configured to detect whether the device file exists, and if the device file exists, it is judged that the memory driver is loaded successfully.

In a third aspect, the present application also provides an electronic device, the electronic device comprising:

memory for storing memory failure recovery programs;

The processor is configured to implement the memory failure recovery method according to the embodiment of the first aspect of the present application when executing the memory failure recovery program.

In a fourth aspect, the present application further provides a storage medium, the storage medium is a computer-readable storage medium, and a memory failure recovery program is stored in the storage medium, and when the memory failure recovery program is executed by a processor, the present application is implemented The memory failure recovery method described in the embodiment of the first aspect.

Compared with the prior art, the technical solution provided by the present application is to uninstall the file system, wherein the file system is mounted with a memory; after the file system is successfully uninstalled, the memory driver is uninstalled; after the memory driver is successfully uninstalled, the memory is disconnected. Power on after the preset time; load the memory driver; after the memory driver is loaded successfully, the file system of the memory is mounted, which can quickly restore the memory to normal work after the memory fails, and the technical solution for restoring the memory to normal work is simple, and the user It does not feel the failure of the memory, the user experience is better, and the hardware cost will not be increased.

Description of drawings

FIG. 1 is a flowchart of a memory fault recovery method provided by a first embodiment of the present application.

FIG. 2 is a flowchart of a memory fault recovery method provided by a second embodiment of the present application.

FIG. 3 is a schematic block diagram of a memory fault recovery apparatus provided by a third embodiment of the present application.

FIG. 4 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present application.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It is to be understood that data so used may be interchanged under appropriate circumstances so that the embodiments described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover non-exclusive inclusion, by way of example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to the explicitly listed Those steps or units listed may instead include other steps or units not expressly listed or inherent to these processes, methods, products or devices.

It should be noted that the descriptions involving "first", "second", etc. in this application are only for the purpose of description, and should not be construed as indicating or implying their relative importance or implying the number of indicated technical features . Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection claimed in this application.

Please refer to FIG. 1. FIG. 1 is a method for recovering from a memory failure provided by a first embodiment of the application. The method for recovering from a memory failure can be performed by a device for recovering from a memory failure, and the device for recovering from a memory failure can be implemented by means of hardware and/or software. To achieve this, it is used to restore normal memory in the event of a memory failure. The storage failure recovery device can be integrated in the Linux system. The memory failure recovery method includes:

S11: Unmount the file system, where a memory is mounted on the file system.

Specifically, in the step S11, the file system is unmounted by calling an unmount command (umount command). The type of memory is not limited. For example, the memory can be eMMC. A file system is the method and data structure used by the operating system to identify files in memory. The software organization responsible for managing and storing file information in the operating system is called a file management system, or file system for short. The file system consists of three parts: the interface of the file system, the software collection for object manipulation and management, and the objects and attributes. From a system point of view, a file system is a system that organizes and allocates the space of file storage devices, is responsible for file storage, and protects and retrieves stored files. Specifically, the file system is responsible for creating files for users, storing, reading, modifying, and dumping files, controlling access to files, and undoing files when users no longer use them. Mounting is a process by which the operating system makes computer files and directories on a storage device available to users through the computer's file system. Unmount is the inverse of mount. For example, when the U disk is not in use, in order to ensure the data security of the U disk, if you want to unplug the U disk, you must first "eject the U disk" in the form of software, and then manually unplug the U disk. Specifically, when unmounting a file system, you can call the umount command to unmount the file system.

S12: After the unloading of the file system is successful, the storage driver is unloaded.

It can be understood that after the unloading of the file system is successful, the polling mode will be enabled to unload the memory driver. Polling is a way for a central processing unit (Central Processing Unit, CPU) to decide how to provide services for peripheral devices, also known as "Programmed I/O". The concept of the polling method is: the CPU periodically sends out inquiries, and sequentially asks whether each peripheral device needs its service, and then provides the service, and then asks the next peripheral after the service is completed, and then repeats the cycle. The memory driver is the driver of the memory. A driver is a special program that enables a computer and a device to communicate with each other, and is equivalent to a hardware interface. Only through this interface can the computer's operating system control the work of the hardware device. After unmounting the file system successfully, unmount the storage driver.

S13: After the memory driver is uninstalled successfully, the memory is powered off for a preset time and then powered on.

It can be understood that after the memory driver is uninstalled successfully, the polling mode will be turned off to power off the memory for a preset time and then power on. The length of the preset time is not limited, and can be set according to the performance of the memory. For example, the preset time can be 2s. After the memory is powered off for a preset time, and then powered on again, the normal operation of the memory and the successful loading of the memory driver can be ensured.

S14: Load the memory driver.

It can be understood that before loading the memory driver, the polling mode will be turned on to load the memory driver. Load the memory driver, that is, install the memory driver again. After the power is turned on, the memory driver is loaded.

S14: After the memory driver is loaded successfully, mount the file system of the memory.

Specifically, in the step S14, the file system is unmounted by invoking a mount command (mounting command). After the memory driver is loaded successfully, the file system of the memory is mounted. Once the storage's file system is mounted, the storage can resume normal operation. It can be understood that after the file system of the storage is mounted, the polling mode is turned off.

In the storage failure recovery method provided in this embodiment, the file system is uninstalled, wherein the file system is mounted with storage; after the file system is successfully uninstalled, the storage driver is uninstalled; after the storage driver is successfully uninstalled, the storage is powered off for a preset time. After the memory is powered on; the memory driver is loaded; after the memory driver is loaded successfully, the file system of the memory is mounted, which can quickly restore the memory to normal work after the memory fails, and the technical solution for restoring the memory to normal work is simple, and the user cannot feel the memory In case of failure, the user experience is better, and the hardware cost will not be increased.

Referring to FIG. 2 , a second embodiment of the present application also provides a method for recovering from a memory failure. Based on the foregoing embodiments, this embodiment provides a solution for judging that each step is completed. The method for recovering from a memory failure includes:

S21: Unmount the file system, wherein the file system is mounted with a memory.

S22: Determine whether the file system is successfully unmounted.

A get_cd function can be set. When the memory fails and the file system of the memory is unloaded successfully, the get_cd function will return 0, which will trigger the unloading of the memory driver. If the unmounting of the file system is successful, proceed to step S23, and if the unmounting of the file system fails, continue to unmount the file system.

S23: After the unloading of the file system is successful, the storage driver is unloaded.

S24: Determine whether the memory driver is successfully uninstalled.

Preferably, the judging whether the memory driver is uninstalled successfully includes:

Check whether the device file exists. If the device file does not exist, it is judged that the memory driver is uninstalled successfully.

A device file is an interface to a device driver and is stored in the file system just like a regular file. Device files usually provide simple interfaces to peripheral devices, such as memory. If the memory driver is uninstalled successfully, the /dev/mmcblk0 file of the device file does not exist. It can be determined whether the memory driver is successfully uninstalled according to whether the detected device file exists. It can be understood that if there are multiple memories, there will be multiple device files. For each memory, it is detected whether the device file corresponding to each memory exists. If the unloading of the memory driver is successful, go to step S25. If uninstalling the memory driver fails, continue to uninstall the memory driver.

S25: After the memory driver is successfully uninstalled, power off the memory for a preset time and then power on.

S26: Load the memory driver.

S27: Determine whether the memory driver is loaded successfully.

Preferably, the judging whether the memory driver is loaded successfully includes:

Check whether the device file exists. If the device file exists, it is judged that the memory driver is loaded successfully.

If the memory driver is loaded successfully, the /dev/mmcblk0 file of the device file exists. It can be determined whether the memory driver is loaded successfully according to whether the detected device file exists. If the loading of the memory driver is successful, proceed to step S28, and if the loading of the memory driver fails, continue to load the memory driver.

S28: After the memory driver is loaded successfully, mount the file system of the memory.

The memory failure recovery method provided in this embodiment can quickly determine whether various conditions are completed, so that the memory can quickly resume normal operation, and the technical solution for restoring the memory to normal operation is simple, the user cannot feel the memory failure, and the user experience is better. Yes, without increasing hardware costs.

Referring to FIG. 3 , a third embodiment of the present application provides a memory failure recovery device 30 , which is used to restore the memory to normal when the memory fails. The memory failure recovery device 30 can be integrated in the Linux system, and the memory failure recovery device 30 can implement the memory failure recovery method of the foregoing embodiment, and the memory failure recovery device 30 includes:

The unmounting module 31 is used to unmount the file system, wherein the file system is mounted with a memory;

The unloading module 32 is used to unload the memory driver after the unloading of the file system is successful;

The electronic control module 33 is configured to power on the memory after power off for a preset time after the unloading of the memory drive is successful;

The loading module 34 is used to load the memory driver after successfully unloading the memory driver;

The mounting module 35 is used to mount the file system of the memory after the memory driver is successfully loaded.

The storage failure recovery device 30 provided in this embodiment uninstalls the file system, wherein the file system is mounted with storage; after the file system is successfully uninstalled, the storage driver is uninstalled; after the storage driver is successfully uninstalled, the storage is powered off and preset Power on after time; load the memory driver; after the memory driver is loaded successfully, the file system of the memory is mounted, which can quickly restore the memory to normal work after the memory fails, and the technical solution for restoring the memory to normal work is simple and the user cannot feel it. If the memory fails, the user experience is better, and the hardware cost will not be increased.

Preferably, the storage failure recovery device 30 further includes:

The first judging module is used for judging whether the unloading of the file system is successful.

Preferably, the storage failure recovery device 30 further includes:

The second judging module is used for judging whether the memory driver is uninstalled successfully.

Preferably, the storage failure recovery device 30 further includes:

The third judging module is used for judging whether the memory driver is loaded successfully.

Preferably, the second judging module is specifically configured to detect whether the device file exists, and if the device file does not exist, it is judged that the memory driver is uninstalled successfully.

Preferably, the third judgment module is specifically configured to detect whether the device file exists, and if the device file exists, it is judged that the memory driver is loaded successfully.

The above product can execute the method provided by any embodiment of the present application, and has functional modules and beneficial effects corresponding to the execution method.

Referring to FIG. 4 , the fourth embodiment of the present application further provides an electronic device and a storage medium, both of which have the corresponding effects of the memory failure recovery method provided by the foregoing embodiments of the present application.

An electronic device provided by this embodiment of the present application includes a memory 41 and a processor 42, the memory 41 stores a memory failure recovery program, and the processor 42 implements the following steps when executing the memory failure recovery program stored in the memory 41:

unmounting a file system, wherein the file system is mounted with a memory;

After unmounting the file system successfully, unmount the memory driver;

After unloading the memory driver successfully, load the memory driver;

After the memory driver is loaded successfully, mount the file system of the memory.

Preferably, the processor of the electronic device further implements the following steps when executing the memory failure recovery program stored in the memory: after the memory driver is successfully unloaded and before the memory driver is loaded, the memory is powered off for a preset time and then powered on.

Preferably, when the processor of the electronic device executes the memory failure recovery program stored in the memory, the following steps are further implemented: judging whether the file system is successfully uninstalled.

Preferably, when the processor of the electronic device executes the memory failure recovery program stored in the memory, the following steps are further implemented: judging whether the memory driver is successfully uninstalled.

Preferably, when the processor of the electronic device executes the memory failure recovery program stored in the memory, the following steps are further implemented: judging whether the memory driver is loaded successfully.

Preferably, the processor executes the memory failure recovery program stored in the memory: when judging whether the memory driver is successfully uninstalled, the specific steps are as follows:

Check whether the device file exists. If the device file does not exist, it is judged that the memory driver is uninstalled successfully.

Preferably, the processor executes the memory failure recovery program stored in the memory: when judging whether the memory driver is loaded successfully, the following steps are specifically implemented:

Check whether the device file exists. If the device file exists, it is judged that the memory driver is loaded successfully.

A storage medium provided by an embodiment of the present application is a computer-readable storage medium, where a memory failure recovery program is stored in the computer-readable storage medium, and when the memory failure recovery program is executed by a processor, the following steps are specifically implemented:

unmounting a file system, wherein the file system is mounted with a memory;

After unmounting the file system successfully, unmount the memory driver;

After unloading the memory driver successfully, load the memory driver;

After the memory driver is loaded successfully, mount the file system of the memory.

Preferably, when the memory failure recovery program stored in the computer-readable storage medium is executed by the processor, the following steps are specifically implemented:

After the memory driver is successfully unloaded and before the memory driver is loaded, the memory is powered off for a preset time and then powered on.

Preferably, when the memory failure recovery program stored in the computer-readable storage medium is executed by the processor, the following steps are specifically implemented:

Check whether the file system is unmounted successfully.

Preferably, when the memory failure recovery program stored in the computer-readable storage medium is executed by the processor, the following steps are specifically implemented:

Determine whether the memory driver is uninstalled successfully.

Preferably, when the memory failure recovery program stored in the computer-readable storage medium is executed by the processor, the following steps are specifically implemented:

Determine whether the memory driver is loaded successfully.

Preferably, when the memory failure recovery program stored in the computer-readable storage medium is executed by the processor, the following steps are specifically implemented:

Check whether the device file exists. If the device file does not exist, it is judged that the memory driver is uninstalled successfully.

Preferably, when the memory failure recovery program stored in the computer-readable storage medium is executed by the processor, the following steps are specifically implemented:

Check whether the device file exists. If the device file exists, it is judged that the memory driver is loaded successfully.

The computer-readable storage medium involved in this application includes random access memory (Random Access Memory, RAM), memory, read-only memory (Read-Only Memory, ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, Hard disk, removable disk, compact disc read-only memory (Compact Disc Read-Only Memory, CD-ROM), or any other form of storage medium known in the technical field.

For the description of the relevant parts of the method, device, electronic device, and storage medium provided by the embodiments of the present application, please refer to the detailed description of the corresponding parts of the method for restoring memory provided by the foregoing embodiments of the present application. Repeat. In addition, parts of the above technical solutions provided in the embodiments of the present application that are consistent with the implementation principles of the corresponding technical solutions in the prior art are not described in detail, so as to avoid redundant descriptions.

The above are only the preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present application, or directly or indirectly applied in other related technical fields , are similarly included in the protection scope of this application.

Claims (10)

1. A storage failure recovery method, wherein the storage failure recovery method comprises: unmounting a file system, wherein the file system is mounted with a memory; After unmounting the file system successfully, unmount the memory driver; After unloading the memory driver successfully, power off the memory for a preset time and then power on; load memory driver; After the memory driver is loaded successfully, mount the file system of the memory. 2. The memory failure recovery method according to claim 1, wherein before the loading of the memory driver, the memory failure recovery method further comprises: Determine whether the memory driver is uninstalled successfully. 3. The memory failure recovery method according to claim 2, wherein the judging whether the memory driver is uninstalled successfully comprises: Check whether the device file exists. If the device file does not exist, it is judged that the memory driver is uninstalled successfully. 4. The memory failure recovery method according to claim 1, wherein before the unloading the memory driver, the memory failure recovery method further comprises: Check whether the file system is unmounted successfully. 5. The storage failure recovery method according to claim 1, wherein before the file system of the storage is mounted, the storage failure recovery method further comprises: Determine whether the memory driver is loaded successfully. 6. The memory failure recovery method according to claim 5, wherein the judging whether the memory driver is loaded successfully comprises: Check whether the device file exists. If the device file exists, it is judged that the memory driver is loaded successfully. 7 . The method for recovering from a memory failure according to claim 1 , wherein, in the unmounting of the file system, the file system is unmounted by invoking an unmount command. 8 . 8. A storage failure recovery device, wherein the storage failure recovery device comprises: an unmounting module for unmounting a file system, wherein the file system is mounted with a memory; Uninstall module, used to uninstall the memory driver after the file system is successfully uninstalled; The electronic control module is used to power on the memory after a preset time after unloading the memory driver successfully; The loading module is used to load the memory driver after successfully unloading the memory driver; The mount module is used to mount the file system of the memory after the memory driver is loaded successfully. 9. An electronic device, characterized in that the electronic device comprises: memory for storing memory failure recovery programs; The processor is configured to implement the memory failure recovery method according to any one of claims 1 to 7 when executing the memory failure recovery program. 10. A storage medium, wherein the storage medium is a computer-readable storage medium, wherein a memory failure recovery program is stored in the storage medium, and when the memory failure recovery program is executed by a processor, the implementation of claim 1 The memory failure recovery method described in any one of to 7.

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