Method and apparatus for isolating uncorrectable errors while system continues to run
US7089461B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2003 |
| Grant date | Aug 8, 2006 |
| Priority date | — |
| Expiry date | Sep 21, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/106
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, apparatus and computer program product are provided for implementing uncorrectable error isolation in a computer system while the system continues to run. A memory controller performs data fetching from a system memory, capturing error information, and responsive to detecting an uncorrectable error, generates a predefined attention to a service processor. The service processor utilizing a processor runtime diagnostic (PRD) program, reads the captured error data and identifies a memory extent with the uncorrectable error. Then the memory controller performs accelerated scrubbing of the identified memory extent with the uncorrectable error, capturing error information and responsive to a scrub correctable error threshold being exceeded, sends a predefined scrub threshold exceeded attention to the service processor. The service processor reads the captured error data and identifies a failed memory chip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.