SoftECC : a system for software memory integrity checking

Author(s)
Dopson, Dave
Thumbnail
DownloadFull printable version (1.762Mb)
Alternative title
Soft ECC : a system for software memory integrity checking
Other Contributors
Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
Advisor
Frans Kaashoek.
Terms of use
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582
Metadata
Show full item record
Abstract
SoftECC is software memory integrity checking agent. SoftECC repeatedly computes page-level checksums as an efficient means to verify that a page's contents have not changed. Memory errors that occur between two checksum computations will cause the two checksum values to disagree. Legitimate memory writes also cause a change in checksum value, so a page can only be protected during periods of time when it is not being written to. Preliminary measurements with an implementation of SoftECC in the JOS kernel on the x86 architecture show that SoftECC can halve the number of undetectable soft errors using minimal compute time.
Description
Thesis (M. Eng. and S.B.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2005.
 
Includes bibliographical references (leaves 51-52).
 
Date issued
2005
URI
http://hdl.handle.net/1721.1/36769
Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Publisher
Massachusetts Institute of Technology
Keywords
Electrical Engineering and Computer Science.
Collections