Physical memory fault mitigation in a computing environment

US10180866B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Jerry D. Ackaret · Beaverton, US
• Robert M. Dunn · Hyde Park, US
• Susan E. Goodwin · Edmonds, US
• Sumeet Kochar · Apex, US
• Randolph S. Kolvick · Durham, US
• James A. O'Connor · Ulster Park, US
• Wilson E. Smith · Durham, US
• Jeffrey J Van Heuklon · Rochester, US

Key dates

• Filing date: Feb 23, 2015
• Grant date: Jan 15, 2019
• Expiry date: Jul 2, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F2201/84
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Effects of a physical memory fault are mitigated. In one example, to facilitate mitigation, memory is allocated to processing entities of a computing environment, such as applications, operating systems, or virtual machines, in a manner that minimizes impact to the computing environment in the event of a memory failure. Allocation includes using memory structure information, including, information regarding fault containment zones, to allocate memory to the processing entities. By allocating memory based on fault containment zones, a fault only affects a minimum number of processing entities.