I got the following build error when building JDK 8 (latest sources) on linux-i586. It is reproducable. I have attached the log.

make[3]: Entering directory `/home/mullan/hg/jdk8/7201068/make/com/sun/jmx'
/bin/mkdir -p ../../../../build/linux-i586/classes/javax/management/remote/rmi
rm -f ../../../../build/linux-i586/classes/javax/management/remote/rmi/RMIConnectionImpl_Stub.class
../../../../build/linux-i586/bin/java -XX:-PrintVMOptions -XX:+UnlockDiagnosticVMOptions -XX:-LogVMOutput -client -Xmx512m -Xms512m -XX:PermSize=32m -XX:MaxPermSize=160m -cp ../../../../build/linux-i586/classes sun.rmi.rmic.Main -classpath "../../../../build/linux-i586/classes" \
                -d ../../../../build/linux-i586/classes \
                -v1.2 \
                -keepgenerated \
                javax.management.remote.rmi.RMIConnectionImpl
Java HotSpot(TM) Client VM warning: ignoring option PermSize=32m; support was removed in 8.0
Java HotSpot(TM) Client VM warning: ignoring option MaxPermSize=160m; support was removed in 8.0
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00000000, pid=11286, tid=1086405440
#
# JRE version: (8.0)
# Java VM: Java HotSpot(TM) Client VM (25.0-b03 mixed mode linux-x86 )
# Problematic frame:
# C 0x00000000
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /home/mullan/hg/jdk8/7201068/make/com/sun/jmx/hs_err_pid11286.log
Phoning home...
Using server: 10.161.186.18, port 4711
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
#
Aborted (core dumped)