Kernel substitution method in multi-processor system and multi-processor system having kernel substitution function
US5825649A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 18, 1995 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | May 18, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F8/656
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
At the time of starting to a kernel substitution, all processes executed on a first process are migrated to a second processor. Thereafter, a new kernel is loaded onto a main memory (substitution memory) set to be in a standby state in advance, and the first processor is rebooted based on the new kernel. Thereby, the new kernel can be applied to only the first processor. Thereafter, the process on the second processor operated based on a previous kernel is migrated to the first processor operated based on the new kernel. Thereafter, the second processor is rebooted based on the new kernel, and the main memory (substitution memory) is accessed, so that the first and second processors are operated based on the new kernel. As a result, a function of the new kernel can be applied to the multi-processor system. Therefore, the kernel can be substituted with a new one without stopping the operation of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.