Using a buffer to replace failed memory cells in a memory component

摘要

Methods and data processing systems for using a buffer to replace failed memory cells in a memory component are provided. Embodiments include determining that a first copy of data stored within a plurality of memory cells of a memory component contains one or more errors; in response to determining that the first copy contains one or more errors, determining whether a backup cache within the buffer contains a second copy of the data; and in response to determining that the backup cache contains the second copy of the data, transferring the second copy from the backup cache to a location within an error data queue (EDQ) within the buffer and updating the buffer controller to use the location within the EDQ instead of the plurality of memory cells within the memory component.

主权项

1. A method comprising:
by computer program instructions on a computing device that controls a buffer,
determining that a first copy of data stored at a first location within a plurality of memory cells of a memory component contains one or more errors;in response to determining that the first copy contains one or more errors, determining whether a backup cache within the buffer contains a second copy of the data;in response to determining that the backup cache does not contain the second copy of the data, determining whether the one or more errors contained in the first copy are correctable; andif the one or more errors are not correctable, creating a non-flushable entry within an error data queue (EDQ) and updating the computing device to use a location of the non-flushable entry within the EDQ instead of the first location within the plurality of memory cells.