2026-09-19T15:20:27Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/24042 2023-07-10 col_2142_5131 col_2142_8888 com_2142_5130 com_2142_8887 com_2142_234

replication Sanders, William H. Adve, Vikram S. Sanders, William H. Adve, Vikram S. Nicol, David M. Patel, Sanjay J. Lefever, Ryan M. 2011-05-25T15:05:32Z 2011-05-25T15:05:32Z 2011-05-25T15:05:32Z 2011-05 An important approach for software dependability is the use of diversity to detect and/or tolerate errors. We develop and evaluate an approach for automated program diversity called Diverse Partial Memory Replication (DPMR), aimed at detecting memory safety errors. DPMR is an automatic compiler transformation that replicates some subset of an executable's data memory and applies one or more diversity transformations to the replica. DPMR can detect any kind of memory safety error in any part of a program's data memory. Moreover, DPMR is novel because it uses partial replication within a single address space, replicating (and comparing) only a subset of a program's memory. We propose and evaluate two strategies for handling pointers stored in memory, a key challenge to DPMR. We also perform a detailed study of the diversity mechanisms and state comparison policies in DPMR (a first of its kind for such diversity approaches), which is valuable for exploiting the high flexibility of DPMR. Finally, we explore the use of Data Structure Analysis to eliminate nearly all restrictions on input programs that would otherwise be necessary. Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2011-04-11T13:18:53Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Lefever_Ryan.tgz: 7869862 bytes, checksum: c62c6909c168c86b7e36820a3845d8b0 (MD5) Lefever_Ryan.pdf: 780685 bytes, checksum: 89be24d0fcf3ccbe19bb28efea8483ab (MD5) Made available in DSpace on 2011-05-25T15:05:32Z (GMT). No. of bitstreams: 3 Lefever_Ryan.pdf: 780685 bytes, checksum: 89be24d0fcf3ccbe19bb28efea8483ab (MD5) license.txt: 4061 bytes, checksum: e99c1cba6714032e6796b80cdb9fd097 (MD5) Lefever_Ryan.tgz: 7869862 bytes, checksum: c62c6909c168c86b7e36820a3845d8b0 (MD5) http://hdl.handle.net/2142/24042 en Copyright 2011 Ryan M. Lefever diverse partial memory replication software memory errors memory safety software diversity partial replication fault injection experimental evaluation Diverse partial memory replication Electrical & Computer Eng 1933 Electrical & Computer Engr 1200 University of Illinois at Urbana-Champaign Dissertation Ph.D. PHD:Electr & Computer Eng-UIUC 10KS1200PHD