Injection of software faults into an operational system
US7536605B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 2005 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Dec 21, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/3688
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method is provided for injecting faults into an operational system containing software and hardware components to be tested. A fault injection routine is stored in a memory location of the system. An interrupt service routine, preferably operational during normal operation of the system is provided with a pointer to the fault injection routine. A fault injection routine is executed from within the interrupt service routine. In one embodiment, the interrupt service routine provides a clock or timing function. In another embodiment, a number of fault injection subroutines are accessible by the fault injection routine. A value is passed to the fault injection routine indicating the particular fault injection subroutine to be employed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.