An error information processing method includes, in response to a memory error triggering an interrupt, collecting error information of the memory error that includes a first memory area where the memory error occurs, obtaining a second memory area for writing log information, determining whether the second memory area contains the first memory area, and, in response to determining that the second memory area contains the first memory area, skipping a process of writing the log information into the second memory area.

Devices and techniques for fatal error logging in a memory device are described herein. For example, a read request can be received for a component of the memory device. A fatal error indication of an error that prevents correct execution of read request can be detected. Diagnostic information for the failure indication can be collected. A response to the read request can then be made with a portion of the diagnostic information as payload instead of the user data that would have occupied the payload had the read succeeded. Metadata in the response can be used to communicate an error code.

A processing device, operatively coupled with the memory device, is configured to determine a first error rate associated a first set of pages of a plurality of pages of a data unit of a memory device, and a second error rate associated with a second set of pages of the plurality of pages of the data unit, determine a first pattern of error rate change for the data unit based on the first error rate and the second error rate, and responsive to determining that the first pattern of error rate change corresponds to a predetermined second pattern of error rate change, perform an action pertaining to defect remediation with respect to the data unit.

An information recording method, apparatus, and device, and a readable storage medium are provided. The method includes: when a server is started, determining a ring buffer in a Double Data Rate (DDR) of a Field-Programmable Gate Array (FPGA) acceleration card based on an OpenPower platform; determining a start address and an end address of the ring buffer and configuring the start address and the end address to the FPGA acceleration card; and during a running process of the server, recording preset debugging information to the ring buffer in real time, so as to perform fault location according to data in the ring buffer after a fault occurs in the server. According to the present application, during a running process of a server, preset debugging information is recorded using a DDR of an FPGA acceleration card; therefore, when a down fault causes a Central Processing Unit (CPU) error of a server, recording of debugging information can also be ensured, thereby facilitating fault location.

The present disclosure provides a method and a system of verifying access by a multi-core interconnect to an L2 cache in order to solve problems of delays and difficulties in locating errors and generating check expectation results. A consistency transmission monitoring circuitry detects, in real time, interactions among a multi-core interconnects system, all single-core processors, an L2 cache and a primary memory, and sends collected transmission information to an L2 cache expectation generator and a check circuitry. The L2 cache expectation generator obtains information from a global memory precise control circuitry according to a multi-core consistency protocol and generates an expected result. The check circuitry is responsible for comparing the expected result with an actual result, thus implementing determination of multi-core interconnect's access accuracy to the L2 cache without delay.

A system for improving memory resource allocation efficiency for executing tasks receives a request to allocate a particular amount of memory resources to a particular database block of a database server. The system monitors the database blocks of the database server to determine whether any portion of memory resources already allocated to any of the database blocks is unutilized. If it is determined that a portion of the memory resources already allocated to any of the database blocks is unutilized, the system reallocates the unutilized memory resources to the particular database block.

A processing device in a memory system determines to send system state information associated with the memory device to a host system and identifies a subset of a plurality of event entries from a staging buffer based on one or more filtering factors, the plurality of event entries corresponding to events associated with the memory device. The processing device further sends the subset of the plurality of event entries as the system state information to the host system over a communication pipe having limited bandwidth.

In response to a determination that an error rating condition associated with a memory device is satisfied, a first error correction operation is performed at the memory device to correct one or more first errors associated with a first memory access operation at the memory device. A detection is made that at least one of a state of the memory device has changed from a first state to a second state or a behavior of the memory device has changed from a first behavior level to a second behavior level. The error rating condition is modified in view of the at least one of the second state of the memory device or the second behavior level of the memory device. In response to a determination that the modified error rating condition is satisfied, a second error correction operation is performed at the memory device to correct one or more second errors associated with a second memory access operation performed at the memory device.

According to the embodiments, an external storage device switches to an interface controller for supporting only a read operation of nonvolatile memory when a shift condition for shifting to a read only mode is met. A host device switches to an interface driver for supporting only the read operation of the nonvolatile memory when determining to recognize as read only memory based on information acquired from the external storage device.

A memory system, a memory controller and an operating method are disclosed. When a target command which instructs an operation of writing target data to a memory device is received from a host, the target data is divided into data units, and a first data unit among the data units is controlled such that the entire first data unit is written to the memory device or none of the first data unit is written to the memory device. As a consequence, it is possible to write data in specific units in a memory system using a multi-core.