The following nightly test:

vm/gc/containers/LinkedList_Arrays

failed with the following crash:

;; Using jvm: "/export/local/common/jdk/baseline/linux-i586/jre/lib/i386/server/libjvm.so"
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/tmp/jprt/P1/B/230657.jcoomes/source/src/share/vm/gc_implementation/g1/concurrentMark.cpp:3508), pid=24653, tid=2882767760
# assert(mr.end() <= _cm->finger()) failed: otherwise the region shouldn't be on the stack
#
# JRE version: 7.0
# Java VM: OpenJDK Server VM (20.0-b01-201009282306.jcoomes.gc-stack-fastdebug mixed mode linux-x86 )
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
#

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

Current thread (0x09862800): ConcurrentGCThread [stack: 0x00000000,0x00000000] [id=24676]

Stack:
[error occurred during error reporting (printing stack bounds), id 0xe0000000]

Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0xa21687];; _ZN7VMError6reportEP12outputStream+0x1207
V [libjvm.so+0xa2190d];; _ZN7VMError14report_and_dieEv+0x18d
V [libjvm.so+0x4917d8];; _Z15report_vm_errorPKciS0_S0_+0x68
V [libjvm.so+0xa2173f];; _ZN7VMError6reportEP12outputStream+0x12bf
V [libjvm.so+0xa2190d];; _ZN7VMError14report_and_dieEv+0x18d
V [libjvm.so+0x4917d8];; _Z15report_vm_errorPKciS0_S0_+0x68
V [libjvm.so+0x447861];; _ZN6CMTask18drain_region_stackEP13BitMapClosure+0x251
V [libjvm.so+0x44cb61];; _ZN6CMTask15do_marking_stepEd+0x2e1
V [libjvm.so+0x451f55];; _ZN23CMConcurrentMarkingTask4workEi+0x125
V [libjvm.so+0xa4b8f0];; _ZN10GangWorker4loopEv+0x130
V [libjvm.so+0xa4a368];; _ZN10GangWorker3runEv+0x18
V [libjvm.so+0x85e839];; _ZL10java_startP6Thread+0xf9
C [libpthread.so.0+0x5832]


Links to failure:

http://sqeweb.sfbay.sun.com/nfs/tools/gtee/results/JDK7/NIGHTLY/VM/2010-09-28/G1_GC_Baseline/vm/linux-i586/server/mixed/linux-i586_vm_server_mixed_vm.gc.testlist/analysis.html

http://sqeweb.sfbay.sun.com/nfs/tools/gtee/results/JDK7/NIGHTLY/VM/2010-09-28/G1_GC_Baseline/vm/linux-i586/server/mixed/linux-i586_vm_server_mixed_vm.gc.testlist/ResultDir/LinkedList_Arrays/

Culprit _must_ be the changes for 6941395 which were pushed yesterday.