Hotspot PIT testing, happened once on Windows-i586
Maybe it relates to JDK-8164315

#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x71617c5c, pid=22556, tid=29780
#
# JRE version: Java(TM) SE Runtime Environment (9.0) (build 9-internal+0-2016-08-12-205858.amurillo.jdk9-hs-2016-08-12-snapshot)
# Java VM: Java HotSpot(TM) Server VM (9-internal+0-2016-08-12-205858.amurillo.jdk9-hs-2016-08-12-snapshot, mixed mode, parallel gc, windows-x86)
# Problematic frame:
# V [jvm.dll+0x3f7c5c]
#
# Core dump will be written. Default location: C:\Users\aurora\sandbox\results\workDir\compiler\unsafe\SunMiscUnsafeAccessTestObject\hs_err_pid22556.mdmp
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#

--------------- S U M M A R Y ------------

Command Line: -Dtest.src=C:\Users\aurora\CommonData\j2se_jdk\hotspot\test\compiler\unsafe -Dtest.src.path=C:\Users\aurora\CommonData\j2se_jdk\hotspot\test\compiler\unsafe -Dtest.classes=C:\Users\aurora\sandbox\results\workDir\classes\1\compiler\unsafe -Dtest.class.path=C:\Users\aurora\sandbox\results\workDir\classes\1\compiler\unsafe -Dtest.vm.opts= -Dtest.tool.vm.opts= -Dtest.compiler.opts= -Dtest.java.opts=-Xmixed -server -XX:+CreateCoredumpOnCrash -XX:+IgnoreUnrecognizedVMOptions -XX:ReservedCodeCacheSize=256M -XX:+UseParallelGC -Dtest.jdk=c:\users\aurora\CommonData\TEST_JAVA_HOME -Dcompile.jdk=c:\users\aurora\CommonData\TEST_JAVA_HOME -Dtest.timeout.factor=16.0 -Dtest.modules=jdk.unsupported/sun.misc -Dtest.nativepath=C:\users\aurora\sandbox\JTREG_NATIVEPATH_LIBRARY_PREPARED --add-exports=jdk.unsupported/sun.misc=ALL-UNNAMED -Xmixed -XX:+CreateCoredumpOnCrash -XX:+IgnoreUnrecognizedVMOptions -XX:ReservedCodeCacheSize=256M -XX:+UseParallelGC -Djava.library.path=C:\users\aurora\sandbox\JTREG_NATIVEPATH_LIBRARY_PREPARED -Diters=20000 -XX:-TieredCompilation com.sun.javatest.regtest.agent.MainWrapper C:\Users\aurora\sandbox\results\workDir\compiler\unsafe\SunMiscUnsafeAccessTestObject.d\testng.2.jta compiler/unsafe/SunMiscUnsafeAccessTestObject.java compiler.unsafe.SunMiscUnsafeAccessTestObject

Host: Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz, 2 cores, 15G, Windows Server 2012 R2 , 64 bit Build 9600 (6.3.9600.17415)
Time: Sun Aug 14 23:02:27 2016 ric elapsed time: 0 seconds (0d 0h 0m 0s)

--------------- T H R E A D ---------------

Current thread (0x40b7cc00): JavaThread "C2 CompilerThread0" daemon [_thread_in_vm, id=29780, stack(0x40fd0000,0x41020000)]


Current CompileTask:
C2: 906 97 % compiler.unsafe.SunMiscUnsafeAccessTestObject::testFieldInstance @ 10 (31 bytes)

Stack: [0x40fd0000,0x41020000], sp=0x4101eba8, free space=314k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [jvm.dll+0x3f7c5c]
V [jvm.dll+0x3f776b]
V [jvm.dll+0x407005]
V [jvm.dll+0x3f704d]
V [jvm.dll+0x3f9040]
V [jvm.dll+0x119947]
V [jvm.dll+0x161285]
V [jvm.dll+0x10534c]
V [jvm.dll+0x16b07f]
V [jvm.dll+0x16a424]
V [jvm.dll+0x4c8ecc]
V [jvm.dll+0x4c850d]
V [jvm.dll+0x4128bc]
C [msvcr120.dll+0x2c01d]
C [msvcr120.dll+0x2c001]
C [KERNEL32.DLL+0x17c04]
C [ntdll.dll+0x5ab8f]
C [ntdll.dll+0x5ab5a]
C 0x00000000


siginfo: EXCEPTION_ACCESS_VIOLATION (0xc0000005), reading address 0xb1840c08