46 results about "Memory faults" patented technology

The invention discloses a server memory management system and a cluster system, and relates to the technical field of server memory management, the system identifies memory fault information of a server based on a fault reminding signal under the condition that a fault signal is received, and the current load state is determined based on operation data of the server. And matching the corresponding target repair strategy to perform fault repair on the server memory based on the target repair strategy. Therefore, the system can dynamically match different fault recovery strategies according to different fault scenes, so that the technical problem of poor flexibility of a memory fault recovery method in related technologies is solved, and the technical effects of improving the flexibility of memory fault recovery and the service operation stability of a server are achieved.

A CXL memory fault tolerance method, and a server system, a storage medium and an electronic device. The method comprises: acquiring parameter values of a group of operating parameters of CXL memory devices in a CXL memory device group, wherein the group of operating parameters are used for representing the operating states of the corresponding CXL memory devices; on the basis of the acquired parameter values of the group of operating parameters, predicting the operating states of the CXL memory devices in the CXL memory device group; and when it is predicted that there is an abnormal memory device operating abnormally in the CXL memory device group, performing controlling to execute a migration operation on memory data in the abnormal memory device, so as to migrate the memory data in the abnormal memory device to a target memory device operating normally in the CXL memory device group. By means of the present application, the problem of CXL memory fault tolerance methods in the prior art of the memory utilization rate of a server being low due to a hot standby memory occupying a server slot is solved.

The embodiment of the invention discloses a CXL memory fault processing method, computing equipment and a computing system, relates to the field of computing, and at least can realize memory fault synchronization between the computing equipment so as to ensure stable operation of the computing equipment. The CXL memory fault processing method comprises the steps of determining second computing equipment from a computing equipment cluster under the condition that access of first computing equipment to a first memory space is abnormal; wherein the first computing device is any computing device in a computing device cluster; the second computing device is a computing device sharing a first memory space with the first computing device in the computing device cluster; the first memory space is a memory space in the CXL memory device; sending the first message to the second computing device; the first message is used for indicating that the first memory space access is abnormal.

The invention discloses a memory diagnosis method and device, equipment and a medium, which are applied to the technical field of servers, and the method comprises the following steps: acquiring a memory data sequence collected according to a preset time interval within a recent preset duration; memory data features are extracted based on the memory data sequence, and the memory data features comprise change trend features; inputting the memory data features into a target memory state prediction model to obtain a memory state prediction result of a future preset duration corresponding to the memory data sequence; wherein the target memory state prediction model is obtained by training a memory data sequence feature sample and a memory state label, and the memory state label represents a memory state of a future preset duration corresponding to the memory data sequence feature sample. Therefore, the memory fault can be predicted in real time, so that problems can be positioned and solved, and the server performance is improved.

The present application relates to the field of server security. Disclosed are a memory fault detection method, system and apparatus, a nonvolatile readable storage medium and a server, which are used for solving the problem of relatively low reliability in memory fault detection and early warning. The method comprises: monitoring the operating state of a memory, so as to acquire error information of the memory; on the basis of the error information, determining the number of correctable errors occurring in the memory; when the number of the correctable errors reaches a preset triggering number, counting target detection parameters on the basis of the error information; and on the basis of the target detection parameters, determining a fault detection result of the memory. Therefore, the present application uses the number of correctable errors only as a trigger condition, and, after the trigger condition is triggered, will further calculate the target detection parameters on the basis of the error information, so as to perform in-depth analysis and understanding on the relationship between the number of correctable errors occurring in of memories and faults, rather than only considering the total number of correctable errors, thus improving the reliability and accuracy of fault analysis.

This application provides a fault processing method and a computing device. The method is applied to the computing device, and the computing device includes an out-of-band management module and processor firmware. The method includes: The out-of-band management module obtains memory information of a memory; the out-of-band management module determines fault information of the memory based on the memory information, where the fault information includes a fault location, and location precision included in the fault location is located at least at a row address of a fault; the out-of-band management module sends the fault information to the processor firmware; and the processor firmware isolates a memory at the fault location based on the fault information. In the foregoing method, a location that is in the memory and at which the fault occurs can be accurately determined, so that processing precision of the memory fault is improved.

This application provides a method, apparatus, and storage medium for collecting memory fault information, relating to the field of data storage, and capable of preventing missed fault information reports. The method is applied to a server, which includes memory, an out-of-band controller, and an in-band controller. The method includes: during server operation, the in-band controller performs fault detection on the memory and sends the detected fault information to the out-of-band controller; during server restart, if the server's startup mode is a cold restart, the in-band controller determines whether new fault information exists in the memory, wherein the new fault information is fault information not stored in the out-of-band controller; if new fault information exists in the memory, the in-band controller sends the new fault information to the out-of-band controller.

The embodiment of the invention provides a fault diagnosis method and circuit of a memory, electronic equipment and a readable medium, and relates to the technical field of integrated circuits, in the method, a test circuit sequentially executes data comparison operation on tested units in the memory according to data comparison operation corresponding to a preset test algorithm. After one-time data comparison operation is executed, a fault capturing circuit generates a single-time fault characteristic value corresponding to target comparison operation under the condition that a comparison result represents that the detected unit has a fault; the target comparison operation is a data comparison operation that the comparison result represents that the tested unit has a fault, and the single fault feature value is used for representing identification information of the target comparison operation; and after all data comparison operations corresponding to the preset test algorithm are executed, identifying the fault type of the tested unit based on all the single fault feature values. Therefore, the fault type of the tested unit can be identified based on all the single fault characteristic values, and then the fault type is determined.

The application relates to the technical field of servers and discloses a fault memory positioning method, system and device, computer equipment and a storage medium, the method comprising the following steps: in the case that a memory fault signal is received and a server is in a shutdown state, the write protection state of a power management chip register is released; candidate fault memories are determined according to the memory fault signal; a disable command is written into the power management chip register of the candidate fault memories, wherein the disable command is used to not power on the candidate fault memories when the server enters a startup state; in the case that the server enters the startup state, log information of the candidate fault memories is acquired; and according to the log information, a target fault memory and slot position information of the target fault memory are determined from the candidate fault memories. The application solves the problems that it is difficult to acquire abnormal information capable of accurately positioning the fault memories and the PMIC fault memories cannot be positioned.

The present application belongs to the technical field of embedded software virtualization testing, and particularly relates to a fault injection method for a QEMU-based all-digital digital prototype. The present application divides faults into three layers, i.e. an atomic fault injection layer, a composite fault injection layer and a fault injection simulation test layer, provides four types of atomic fault injection, i.e. register fault, memory fault, bus protocol fault and bus load fault, and provides composite fault injection and fault case set injection. The present application takes the QEMU-based all-digital simulation digital prototype as an injection target, improves the reliability of fault injection results, and realizes fault injection at different levels from the physical layer to the application layer through the provision of three levels and four dimensions of fault injection modes and rich fault injection methods, thereby improving the fault tolerance and reliability of embedded software and improving the testing efficiency.

The invention provides a memory fault detection method and device based on a target fault type, and the method comprises the steps: determining a to-be-detected fault type of a memory, and constructing a fault detection sequence library of the memory; for any target fault type in the to-be-detected fault types, determining a corresponding target detection sequence from a fault detection sequence library; performing sequence recombination based on write operation types on each target detection sequence to obtain an integral write operation detection sequence, inserting read operation sequence elements to obtain a to-be-optimized fault detection sequence, and finally performing screening processing based on the read operation sequence elements to obtain a final fault detection sequence. The fault detection module is used for detecting any target fault type in to-be-detected fault types. Through the memory fault detection method and device, the defect that the test coverage rate for specific fault types cannot reach 100% due to the fact that a memory fault detection method in the prior art has numerous memory fault types and all the fault types of the memory are difficult to detect is overcome.

Systems, methods, and computer-readable storage devices can include fabric networks for isolating and correcting failures in the fabric network and device failures. The fabric network connects to a group of devices and a host. The group of devices includes at least a target data device, other data devices, and a parity device. A redundant array of independent devices (RAID) engine, which is coupled to the one group of devices, performs an access operation. The fault tolerant engine is provided in a leaf switch of the fabric network. A routing processor determines a path for a request received from the host to the target data device. The routing processor is coupled to the fault tolerant engine, and the routing processor is provided in the leaf switch.

The application belongs to the technical field of integrated circuit design and manufacturing, and particularly relates to an integrated circuit memory fault management method and system based on an NPU processor architecture. First, multi-dimensional detection is carried out specially for the memory size, storage area and handshake protocol effectiveness of a physical address, which changes the status of passive transmission of abnormal signals in the traditional scheme. Then, according to the fault detection result, a control signal is reversely output to intervene in the mapping logic, so as to effectively avoid fault diffusion caused by continuous transmission of abnormal addresses, and when an address abnormality is detected, subsequent physical addresses can be forcibly relocated to a preset safe address area, reliable safety backup is provided, and the running stability is improved.

The invention discloses a computer operation fault rapid identification processing method, and relates to the technical field of data analysis, and the method comprises the following steps: S100, setting a first test parameter according to a mapping relation between a driving square wave and a write-in signal, and testing a memory based on an improved SDRAM test algorithm and the first test parameter to obtain a test result; a cross cubic network of memory addresses is constructed, a numerical matrix is constructed according to the cross cubic network, first calculation is performed based on the numerical matrix, and a fault address and a fault type are output. According to the method, accurate coordinates are provided for subsequent redundancy repair through automatic classification, the number of test steps is reduced by driving the mapping relation between square waves and write-in signals and exciting time sequence and amplitude coupling faults at a time, three-dimensional addresses are subjected to redundancy through the cross cubic network, and the storage fault recognition speed and accuracy are remarkably improved.

The application provides a memory fault detection method and device based on a target fault type, which comprises the following steps: determining a fault type to be detected existing in a memory, and constructing a fault detection sequence library of the memory; determining a corresponding target detection sequence from the fault detection sequence library for any target fault type in the fault type to be detected; performing sequence recombination based on a write operation type for each target detection sequence to obtain an overall write operation detection sequence, inserting a read operation sequence element to obtain a fault detection sequence to be optimized, and finally performing screening processing based on the read operation sequence element to obtain a final fault detection sequence for detecting any target fault type in the fault type to be detected. Through the application, the defect that the test coverage rate for a specific fault type cannot reach 100% due to the fact that the memory fault detection method in the prior art is difficult to detect all fault types of the memory because of the numerous fault types of the memory is overcome.

The invention relates to the technical field of computing devices, in particular to a memory fault isolation method and a computing device.In the starting stage of the computing device, fault identification information corresponding to at least one memory is read, and the fault identification information is used for determining whether an unavailable fault exists in the corresponding memory or not; based on the fault identification information corresponding to the at least one memory, determining a first memory with an unavailable fault; and isolating the first memory. In the embodiment of the invention, the memory fault is pre-checked, the system operation problem is avoided, and the system starting safety and stability are improved.

The present application relates to a memory fault repair method, apparatus, computer device, storage medium, and computer program product. The present application relates to artificial intelligence technology. The method includes: obtaining target remapping information corresponding to a current faulty interface in a memory; the target remapping information is obtained by reallocating the mapping relationship between each instruction signal bit corresponding to a memory access instruction and an instruction transmission interface among a normal interface and a redundant interface based on the positional relationship between the current faulty interface and other instruction transmission interfaces, and the instruction transmission interface is used for transmitting signal data corresponding to the corresponding instruction signal bit in the memory access instruction; generating a fault repair instruction carrying the target remapping information, and sending the fault repair instruction to the memory, so that the memory receives the memory access instruction through the normal interface and the redundant interface based on the target remapping information, ensuring that the memory correctly receives the memory access instruction.

The invention is applicable to the technical field of fault detection, and provides a memory fault detection method, electronic equipment and a storage medium, the method comprises the following steps: processing pre-stored image data pre-stored in a dynamic storage area by using an image processing model to obtain a current processing result, determining whether the dynamic storage area fails or not by comparing the current processing result with the reference processing result; calculating a current check code of the current code stored in the static storage area by using the check model, and determining whether the static storage area fails or not by comparing the current check code with the reference check code; determining whether the image storage area has a fault or not in a read-write mode; the memory fault detection method and device achieve the effect of performing fault detection on the memory.

The invention belongs to the technical field of embedded software virtualization testing, and particularly relates to a fault injection method for an all-digital prototype based on a QEMU. According to the method, faults are divided into three layers, namely an atomic fault injection layer, a composite fault injection layer and a fault injection simulation test layer, four types of atomic fault injection of register faults, memory faults, bus protocol faults and bus load faults are provided, and composite fault injection and fault case set injection are provided. The QEMU-based full-digital simulation digital prototype is taken as an injection target, the credibility of a fault injection result is improved, fault injection of different levels from a physical layer to an application layer is realized by providing three-level and four-dimension fault injection modes and rich fault injection methods, and the fault injection efficiency is improved. The fault tolerance and reliability of the embedded software are improved, and the testing efficiency of the embedded software is improved.

The invention provides a memory fault detection method, which comprises the following steps of: generating expected data according to a preset mode; wherein the preset mode represents the test dimension of the memory, and the memory comprises a double-rate synchronous dynamic random access memory DDR subsystem and a dynamic random access memory DRAM subsystem; the expected data is written into the DRAM subsystem through the DDR subsystem; reading the read-back data from the DRAM subsystem; and under the condition that the read-back data is not matched with the expected data, determining that the memory has a fault. The invention further provides a fault detection device of the memory, a chip, a computer readable medium and a computer program product.

The invention relates to the technical field of memory fault repair, and particularly discloses a local and global redundancy optimization repair method and system based on data mining, and the method comprises the steps: collecting historical fault data of a memory, cleaning the historical fault data, and extracting fault bit features; carrying out clustering analysis on the extracted fault bit features by adopting a clustering algorithm, and dividing a high-frequency fault region of the fault bit; constructing a distance model of the fault bit and the redundant unit, wherein the distance model fuses the physical distance and the logic distance of the fault bit and the redundant unit; when a new fault bit is detected, preferentially allocating a local redundancy unit with a closer logic distance and / or physical distance based on the distance model for repairing, and updating a resource occupation state of a local redundancy pool; and if the local redundant unit of the area where the new fault bit is located is exhausted, selecting an optimal resource from the global redundant unit according to the distance weight based on the distance model to repair.

The invention relates to a built-in self-test method, architecture and system oriented to an in-memory computing macro-cell, and the method comprises the steps: executing a first test mode: inserting a computing activation vector and a computing enabling instruction in an MBIST test algorithm, and carrying out a computing test after a read operation to detect a coupling fault between a storage array and bit multiplication logic; and judging whether the storage reading result and the calculation result are correct or not, if so, entering a second test mode or judging that the self-test is correct and completing the detection, and otherwise, diagnosing the fault position based on the detection result. According to the test method provided by the invention, the calculation enabling and the calculation activation vector are inserted in the traditional MBIST algorithm, and the additionally executed multiply-accumulate calculation operation is verified after the read operation, so that the test efficiency is greatly improved on the premise of covering the fault type of the traditional memory. The specific fault of data coupling between the storage unit and the calculation unit can be further effectively detected, and the fault coverage rate is increased.

This application provides a memory fault processing method: a faulty first storage cell is determined, the first storage cell is isolated, a pressure test is performed on the first storage cell to obtain a fault level of the first storage cell, and a corresponding operation is performed on the first storage cell based on the fault level of the first storage cell, where when the fault level of the first storage cell indicates that the first storage cell is at a first risk level, the operation performed on the first storage cell includes de-isolating the first storage cell. After a faulty storage cell is isolated, a pressure test may be performed on the storage cell to obtain a real fault level of the storage cell. When the fault level of the first storage cell is the first risk level, the first storage cell may continue to be used.

The invention relates to the technical field of computers, and particularly provides a fault management method and device, electronic equipment and a computer program product. The fault management method applied to the computing equipment comprises the following steps: in response to a high-bandwidth memory fault, determining a running state of an operating system; when the operation state meets the first state in response, first fault management is carried out based on received first fault information sent by the basic input and output system; and when the operation state meets the second state, performing second fault management. According to the method, comprehensive fault management is carried out on the operating system in a normal state and an abnormal state, and by recording and / or processing a plurality of correction problems and / or slightly uncorrected problems, timely early warning of faults and / or accurate positioning when serious or fatal uncorrected problems occur are / is realized, so that the stability and the reliability of the system are improved.

The invention discloses a memory fault processing method and device, a controller, a system, a medium and a product, and relates to the field of fault processing, when a target memory has an IO overtime fault, the memory controller controls to close an IO retry function of the target memory; according to the method and the device, the first target requests of the target memory are received, the first target requests of the target memory are stopped, the first target requests of the current target memory are directly stopped, the IO requests which are not processed in the current target memory can be rapidly processed, and then an error processing thread can be called to carry out fault processing. By closing the IO retry function of the target memory, the time consumed by IO repeated retry is avoided, the IO request which is not processed completely is compressed for timeout fault detection, and the time consumed by retry is avoided, so that an error processing thread can be quickly awakened, the fault processing duration is greatly shortened, and the influence caused by overlong-time request blockage is avoided.

The invention belongs to the related field of memory test technologies, and discloses a March C address matching algorithm for SDRAM (synchronous dynamic random access memory) test, which integrates the influence of various factors such as memory fault coverage rate, test time complexity, actual detection time and the like, optimizes the test algorithm on the basis of the March C algorithm, and improves the test efficiency. Therefore, an efficient and practical memory test algorithm is obtained, and the time complexity of the test is reduced on the premise that the fault coverage rate is high. According to the method, nearly 10% of test time is optimized on the premise that the fault coverage rate is 95%, so that a more efficient and practical memory test algorithm is realized.

A system can respond to detection or prediction of an uncorrectable error (UE) in memory based on fault-aware analysis. The fault-aware analysis enables the system to generate a determination of a specific hardware element of the memory that is faulty. In response to detection of an error, the system can correlate a hardware configuration of the memory device with historical data indicating memory faults for hardware elements of the hardware configuration. Based on a determination of the specific component that likely caused the UE, the system can identify a region of memory associated with the detected UE and mirror the faulty region to a reserved memory space of the memory device for access to data of the faulty region.

The invention discloses a memory fault prediction method and device, and relates to the technical field of artificial intelligence. The running state data is used for indicating n attributes in a first time period in the target equipment; performing feature extraction on the operation state data to obtain state feature data corresponding to the operation state data; determining a first prediction result by using the state feature data; the first prediction result is used for indicating the number of times that correctable errors occur in the memory in the second time period; determining a second prediction result by using the state feature data; the second prediction result is used for indicating the probability that uncorrectable errors occur in the memory within the third time period. According to the method, the technical effect of accurately predicting the number of times that correctable errors occur in the memory and the probability that uncorrectable errors occur in the memory is achieved.