HANDLING OPERATION SYSTEM (OS) IN SYSTEM FOR PREDICTING AND MANAGING FAULTY MEMORIES BASED ON PAGE FAULTS

    公开(公告)号:US20210357279A1

    公开(公告)日:2021-11-18

    申请号:US17198979

    申请日:2021-03-11

    Abstract: A method of operating a system running a virtual machine that executes an application and an operating system (OS) includes performing first address translation from first virtual addresses to first physical addresses, identifying faulty physical addresses among the first physical addresses, each faulty physical address corresponding to a corresponding first physical address associated with a faulty memory cell, analyzing a row address and a column address of each faulty physical address and specifying a fault type of the faulty physical addresses based on the analyzing of the row address and the column address of each faulty physical address, and performing second address translation from second virtual addresses to second physical addresses based on a faulty address, thereby excluding the faulty address from the second physical addresses.

    MEMORY MODULE AND MEMORY SYSTEM INCLUDING MEMORY MODULE

    公开(公告)号:US20190310784A1

    公开(公告)日:2019-10-10

    申请号:US16205357

    申请日:2018-11-30

    Abstract: A memory module includes a first type memory, a second type memory, a serial presence detect device and a controller. The serial presence detect device is configured to transfer capacity information of the second type memory to an external host device, during an initialization operation. The controller is configured to transfer a training command for the second type memory received from the external host device to the first type memory, during a training operation, which follows in time the initialization operation.

    Memory device skipping refresh operation and operation method thereof

    公开(公告)号:US11610624B2

    公开(公告)日:2023-03-21

    申请号:US17474666

    申请日:2021-09-14

    Abstract: Provided are a memory device skipping a refresh operation and an operating method thereof. The memory device includes a memory cell array including N rows; a refresh controller configured to control a refresh operation for the N rows of the memory cell array based on a refresh command; and an access information storage circuit including a plurality of registers configured to store flag information corresponding to each of the N rows, wherein a first value indicates rows that have been accessed, and a second value indicates rows that have not been accessed. The refresh controller is further configured to control whether the refresh operation is performed for a first row of the N rows at a refresh timing for the first row based on the flag information corresponding to the first row.

    Memory module and memory system relating thereto

    公开(公告)号:US11481149B2

    公开(公告)日:2022-10-25

    申请号:US16706078

    申请日:2019-12-06

    Abstract: A memory module including at least one memory and a memory control circuit to control the at least one memory and to generate an internal operation request including an information regarding internal operation time when the memory module need the internal operation time. The memory control circuit is to transfer the internal operation request to an external device, to receive a first command from the external device in response to the internal operation request and including an information of whether the internal operation time is approved, and to perform the internal operation during the internal operation time based on the first command.

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