US Patent 12026387 Page swapping to protect memory devices

A page swapping memory protection system tracks accesses to physical memory pages, such as in a table with each row storing a physical memory page address and a counter value. This counter value records the number of accesses (e.g., read access or write accesses) to the corresponding physical memory page. In response to one of the counters exceeding a threshold value, the corresponding physical memory page is swapped with another page in physical memory (e.g., a page the table indicates has a smallest number of accesses). According, unreliability in the physical memory introduced due to frequent accesses to a particular physical memory page is mitigated.