When running the benchmark lusearch (2006-10-MR2) with a large input size, the assertion for the returned address from malloc and the benchmarks fails very often. Probably this comes from the heavy use of several threads in lusearch.
e.g. (using configuration development GenMS)
development-genms_ia32-linux/rvm -X:gc:fixedNursery=32M -Xms175M -Xmx175M -jar dacapo.jar -s large lusearch
ubuntu 10.10: Linux ThinkPad-X61s 2.6.35-23-generic #41-Ubuntu SMP Wed Nov 24 10:18:49 UTC 2010 i686 GNU/Linux
jikes-rvm revision: r16034