Multilevel Memory Failure Bypass via Proactive Far Memory Offlining

The patent applies preliminary action by proactively offlining far memory locations that are mapped to a faulty near memory location before actual errors occur. When a fault is detected in near memory, the system preemptively identifies and takes offline all far memory locations that map to the faulty near memory location, preventing potential errors before they happen. This is implemented through firmware or operating system logic that monitors near memory health and automatically offlines corresponding far memory locations in advance.

The patent uses an intermediary approach by introducing a faulty near memory location list that acts as a mediator between near memory faults and far memory management. This list stores information about faulty near memory locations and serves as an intermediary data structure that enables the system to identify and offline corresponding far memory locations without requiring complex direct mapping logic. The intermediary list simplifies the error management structure by providing a centralized repository for fault information.

The patent applies the taking out principle by extracting and isolating only the specific far memory locations that are mapped to faulty near memory locations, rather than offlining entire memory banks or systems. This selective extraction approach minimizes the impact on overall system operation by taking offline only the specific memory locations that would cause errors, while leaving the rest of the memory system operational and accessible.