Method and system for preserving crash dump in a diskless system
US7484127B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 13, 2005 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Sep 11, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/0778
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention discloses a method for preserving crash dump data in case of operating system crash in a diskless device. The method and the system according to the invention uses two stage booting where in a primary and a secondary kernel are loaded. The primary kernel is a compact kernel that comprises a limited set of functionality and the secondary kernel is a fully functional kernel used for running applications. In case of a crash of the secondary kernel, the kernel prepares a jump back to the primary kernel. Then the primary kernel preserves the crash dump support data and secondary kernel's RAM contents by sending it to a remote system which can store it on a nonvolatile memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.