Remote repair of operating system state using backdoors
- 10 June 2004
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
Backdoors is a novel system architecture that enables remote monitoring and recovery/repair of the software state of a computer system without using its processors or relying on its OS resources. We have implemented a Backdoors prototype in the FreeBSD kernel using Myrinet NICs for remote access to the target machine. In a previous paper, we have shown how Backdoors can be used for recovery of "good" OS and application state from a failed system on other healthy systems. In this paper, we describe how Backdoors can be used to detect and repair damage to the OS state of a computer system. We present two case studies of remote repair of an OS subject to resource depletion (fork bomb and memory hog) to the point where it cannot perform useful work and local repair is impossible. We show that our prototype detects OS resource exhaustion efficiently and it successfully repairs the affected system.Keywords
This publication has 4 references indexed in Scilit:
- Automatic detection and repair of errors in data structuresPublished by Association for Computing Machinery (ACM) ,2003
- Self-monitoring and self-adapting operating systemsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Defensive programmingPublished by Association for Computing Machinery (ACM) ,2002
- The Virtual Interface ArchitectureIEEE Micro, 1998