Assertion was triggered by running TestMaxNewSize
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/opt/jprt/T/P1/201217.amurillo/s/src/share/vm/memory/collectorPolicy.cpp:256), pid=803, tid=3054209904
# assert(NewSize == _initial_gen0_size) failed: Discrepancy between NewSize flag and local storage
#
# JRE version: (8.0-b114) (build )
# Java VM: Java HotSpot(TM) Server VM (25.0-b58-internal-201311022012.amurillo.hs25-b58-gc-sync-fastdebug mixed mode linux-x86 )
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
#

No core-file was generated. Looking at the log for the test one can see that it was the following command-line that was run when triggering the assertion:
java -XX:+UseSerialGC -Xmx128M -XX:OldSize=96M -XX:+PrintFlagsFinal -version

I was able to reproduce this locally with a 32-bit fastdebug-build on my 64-bit Ubuntu but not with a 64-bit build.