Memory error isolation and recovery in a multiprocessor computer system
US8656228B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2010 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Nov 25, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/1458
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and computer implemented method for isolating errors in a computer system is provided. The method includes receiving a direct memory access (DMA) command to access a computer memory, a read response, or an interrupt; associating the DMA command to access the computer memory, the read response, or the interrupt with a stream identified by a stream identification (ID); detecting a memory error caused by the DMA command in the stream, the memory error resulting in stale data in the computer memory; and isolating the memory error in the stream associated with the stream ID from other streams associated with other stream IDs upon detecting the memory error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.