This appears to be a new failure in the nightlies.

http://sqeweb/nfs/results/vm/gtee/JDK7/NIGHTLY/VM/2012-02-08/Comp_Baseline/vm/windows-amd64/server/comp/windows-amd64_vm_server_comp_vm.gc.testlist/ResultDir/JumbleGC002/

;; Using jvm: "C:/local/common/jdk/baseline/windows-amd64/jre/bin/server/jvm.dll"

Warning: This error log is *not* generated by the following JVM:
           C:/local/common/jdk/baseline/windows-amd64/jre/bin/server/jvm.dll
         
         Expected vm_info: [Java HotSpot(TM) 64-Bit Server VM (23.0-b15-internal-201202080913.rwestrel.hotspot-fastdebug) for windows-amd64 JRE (1.8.0), built on Feb 8 2012 01:20:42 by "jprtadm" with unknown MS VC++:1600]
         Actual vm_info: []
         
         JVM symbol lookup may be incorrect.
         Please use --jvm=<path/to/jvm> to point to the correct JVM.
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (C:\temp\jprt\P1\091302.rwestrel\source\src\share\vm\compiler\oopMap.cpp:308), pid=11132, tid=3248
# assert(m->offset() == pc_offset) failed: oopmap not found
#
# JRE version: 7.0_04-b10
# Java VM: Java HotSpot(TM) 64-Bit Server VM (23.0-b15-internal-201202080913.rwestrel.hotspot-fastdebug compiled mode windows-amd64 )
# Core dump written. Default location: c:\local\58069.JDK7.NIGHTLY.VM_windows-amd64_vm_server_comp_vm.gc.testlist\results\ResultDir\JumbleGC002\hs_err_pid11132.mdmp
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
#

VM Arguments:
jvm_args: -Xcomp -XX:-PrintVMOptions -XX:CompileThreshold=100 -XX:DefaultMaxRAMFraction=8 -XX:+UnlockExperimentalVMOptions -XX:+IgnoreUnrecognizedVMOptions -XX:-UseCompressedOops -XX:+IgnoreUnrecognizedVMOptions -XX:+AggressiveOpts -XX:-UseGCOverheadLimit
java_command: gc.gctests.JumbleGC002.JumbleGC002 -stressTime 30
Launcher Type: SUN_STANDARD



--------------- S Y S T E M ---------------

OS: Windows Server 2008 , 64 bit Build 6002 Service Pack 2

CPU:total 4 (8 cores per cpu, 1 threads per core) family 6 model 23 stepping 6, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1, tsc

Memory: 4k page, physical 4192984k(1797624k free), swap 8608488k(6816536k free)

vm_info: Java HotSpot(TM) 64-Bit Server VM (23.0-b15-internal-201202080913.rwestrel.hotspot-fastdebug) for windows-amd64 JRE (1.8.0), built on Feb 8 2012 01:20:42 by "jprtadm" with unknown MS VC++:1600

time: Thu Feb 09 13:44:17 2012
elapsed time: 21 seconds

# Host info: CYGWIN_NT-6.0-WOW64 jfx-vm444-new 1.5.25(0.156/4/2) 2008-06-12 19:34 i686 Cygwin