Attention mechanism for immediately displaying/logging system checkpoints
US6658594B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2000 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | May 10, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/0766
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, system, and apparatus of recording information generated by a data processing system prior to completion enablement of programmed input/output services for the data processing system is provided. In one embodiment, a service processor receives an attention interrupt from a host processor. The service processor then stops the operation of all host processors in the data processing system. The service processor then reads the information, such as a system checkpoint, from a buffer within the host processor's system memory and writes the information into a non-volatile random access memory as well as displays the information to a user via a video display. The service processor then restarts the host processors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.