公开(公告)号：US20240061741A1

公开(公告)日：2024-02-22

申请号：US18268956

申请日：2020-12-26

Applicant: Intel Corporation

Inventor： Rajat AGARWAL ,  Hsing-Min CHEN ,  Wei P. CHEN ,  Wei WU ,  Jing LING ,  Kuljit S. BAINS ,  Kjersten E. CRISS ,  Deep K. BUCH ,  Theodros YIGZAW ,  John G. HOLM ,  Andrew M. RUDOFF ,  Vaibhav SINGH ,  Sreenivas MANDAVA

IPC: G06F11/10

CPC classification number: G06F11/10

Abstract: A memory subsystem includes memory devices with space dynamically allocated for improvement of reliability, availability, and serviceability (RAS) in the system. Error checking and correction (ECC) logic detects an error in all or a portion of a memory device. In response to error detection, the system can dynamically perform one or more of: allocate active memory device space for sparing to spare a failed memory segment; write a poison pattern into a failed cacheline to mark it as failed; perform permanent fault detection (PFD) and adjust application of ECC based on PFD detection; or, spare only a portion of a device and leave another portion active, including adjusting ECC based on the spared portion. The error detection can be based on bits of an ECC device, and error correction based on those bits and additional bits stored on the data devices.

公开(公告)号：US20220350500A1

公开(公告)日：2022-11-03

申请号：US17855688

申请日：2022-06-30

Applicant: Intel Corporation

Inventor： Wei P. CHEN ,  Theodros YIGZAW ,  Sarathy JAYAKUMAR ,  Anthony LUCK ,  Deep K. BUCH ,  Rajat AGARWAL ,  Kuljit S. BAINS ,  John G. HOLM ,  Brent CHARTRAND ,  Keith KLAYMAN

IPC: G06F3/06

Abstract: An apparatus is described. The apparatus includes a processor. The processor includes a memory controller to read and write from a memory. The memory controller includes error correction coding (ECC) circuitry to correct errors in data read from the memory. The processor includes register space to track read data error information. The processor includes an embedded controller. The processor includes local memory coupled to the embedded controller. The embedded controller is to read the read data error information and store the read data error information in the local memory.