Method and apparatus for checkpoint and restarting a stream in a software partition
US7950019B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2007 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Mar 23, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1407
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer implemented method, apparatus, and computer program product for a checkpoint process associated with a device driver in a workload partitioned environment. In response to initiation of a checkpoint process, a stream is frozen. The stream comprises a set of kernel modules driving a device. Freezing the stream prevents any module in the set of kernel modules from sending any messages, other than a checkpoint message, to another module in the set of kernel modules. The message block for each module in the set of kernel modules is updated with internal data to form a restart message. The internal data is data describing a state of the module in the set of kernel modules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.