Dynamic physical memory replacement through address swapping

A method, comprising:

• detecting a reproducible fault at a first physical address targeting a first physical memory segment in one of a plurality of memory devices;
• in response to the detection of the reproducible fault, remapping the first physical address to a second physical address, the second physical address targeting a second physical memory segment in one of the plurality of memory devices;
• storing the first and second physical addresses in an entry in an address swap cache;
• receiving a memory transaction targeting the first physical address;
• performing a lookup to identify the entry in the address swap cache storing the first physical address;
• and
• in response to the identification, swapping the second physical address into the memory transaction for the first physical address.

A machine-readable medium having stored thereon instructions, which if executed by a machine causes the machine to perform a method comprising:

• detecting a reproducible fault at a first physical address targeting a first physical memory segment in one of a plurality of memory devices;
• in response to the detection of the reproducible fault, remapping the first physical address to a second physical address, the second physical address targeting a second physical memory segment in one of the plurality of memory devices;
• storing the first and second physical addresses in an entry in an address swap cache;
• receiving a memory transaction targeting the first physical address;
• performing a lookup to identify the entry in the address swap cache storing the first physical address;
• and
• in response to the identification, swapping the second physical address into the memory transaction for the first physical address.

A system, comprising:

• a memory module comprising a plurality of memory devices;
• a memory controller including
• an address swap cache;
• and
• a memory segment swap logic to
• detect a reproducible fault at a first physical address targeting a first physical memory segment in one of the plurality of memory devices;
• in response to the detection of the reproducible fault, remap the first physical address to a second physical address, the second physical address targeting a second physical memory segment in one of the plurality of memory devices;
• store the first and second physical addresses in an entry in the address swap cache;
• receive a memory transaction targeting the first physical address;
• perform a lookup to identify the entry in the address swap cache storing the first physical address;
• and
• in response to the identification, swap the second physical address into the memory transaction for the first physical address.