Test gc/gctests/FinalizeLock intermittently fails on solaris10-x86 with options
-client -Xmixed -XX:+UseConcMarkSweepGC

Failure log is provided below 

It seems to me that this failure is similar to CR 6482915 and 6635560

This bug is reproducible only with -XX:+UseConcMarkSweepGC option.

;; Using jvm: "/export/jdk/jdk1.6.0_19/jre/lib/i386/client/libjvm.so"
#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0xfe90dcd4, pid=29026, tid=6
#
# JRE version: 6.0_19-b04
# Java VM: Java HotSpot(TM) Client VM (16.2-b04 mixed mode solaris-x86 )
# Problematic frame:
# V  [libjvm.so+0x10dcd4]
#
# 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 (0x0815cc00):  VMThread [stack: 0xf217f000,0xf21ff000] [id=6]

siginfo:si_signo=SIGSEGV: si_errno=0, si_code=1 (SEGV_MAPERR), si_addr=0xe822e118;; 

Registers:
EAX=0xe822e118, EBX=0xf29b2000, ECX=0x00000001, EDX=0xf29b1ff0
ESP=0xf21fe924, EBP=0xf21fe934, ESI=0xf2ee0000, EDI=0xf2ee0000
EIP=0xfe90dcd4, EFLAGS=0x00010286

Top of Stack: (sp=0xf21fe924)
0xf21fe924:   fe90dc70 08076cb8 f21fe990 f81ffbc8
0xf21fe934:   f21fe944 fe90dc84 080774e0 f21fe910
0xf21fe944:   f21fe96c fe9e947a f21fe990 080774e0
0xf21fe954:   f21fea20 00000000 08073ac0 fecefac0
0xf21fe964:   f21fe980 f21fe980 f21fe994 fe90dc69
0xf21fe974:   08076cb8 f21fe990 00000001 0815b7f4
0xf21fe984:   08073a70 00000001 08073ac4 fece8474
0xf21fe994:   f21fe9a4 fe90dc40 08076cb8 fecefae0 

Instructions: (pc=0xfe90dcd4)
0xfe90dcc4:   03 83 f8 03 74 47 3b df 73 1f 8b 43 04 83 c0 08
0xfe90dcd4:   8b 08 8b 49 68 53 50 ff d1 83 c4 08 8d 1c 83 3b 
;; fe90dcc4 03 83 f8 03 74 47       add    0x477403f8(%ebx),%eax
;; fe90dcca 3b df                   cmp    %edi,%ebx
;; fe90dccc 73 1f                   jae    0xfe90dced
;; fe90dcce 8b 43 04                mov    0x4(%ebx),%eax
;; fe90dcd1 83 c0 08                add    $0x8,%eax
;; ---------------
;; fe90dcd4 8b 08                   mov    (%eax),%ecx
;; fe90dcd6 8b 49 68                mov    0x68(%ecx),%ecx
;; fe90dcd9 53                      push   %ebx
;; fe90dcda 50                      push   %eax
;; fe90dcdb ff d1                   call   *%ecx
;; fe90dcdd 83 c4 08                add    $0x8,%esp
;; fe90dce0 8d 1c 83                lea    (%ebx,%eax,4),%ebx
;; fe90dce3 3b ff                   cmp    %edi,%edi
;; 
Stack: [0xf217f000,0xf21ff000],  sp=0xf21fe924,  free space=1fefecf6aeck
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V  [libjvm.so+0x10dcd4];;  __1cQCompactibleSpacePadjust_pointers6M_v_+0x48
V  [libjvm.so+0x10dc84];;  __1cVAdjustPointersClosureIdo_space6MpnFSpace__v_+0x14
V  [libjvm.so+0x1e947a];;  __1cQDefNewGenerationNspace_iterate6MpnMSpaceClosure_b_v_+0x1e
V  [libjvm.so+0x10dc69];;  __1cKGenerationPadjust_pointers6M_v_+0x21
V  [libjvm.so+0x10dc40];;  __1cYGenAdjustPointersClosureNdo_generation6MpnKGeneration__v_+0x14
V  [libjvm.so+0x21b725];;  __1cQGenCollectedHeapSgeneration_iterate6Mpn0AKGenClosure_b_v_+0x65
V  [libjvm.so+0x10d7c3];;  __1cMGenMarkSweepRmark_sweep_phase36Fi_v_+0x13f
V  [libjvm.so+0x21c0b7];;  __1cMGenMarkSweepTinvoke_at_safepoint6FipnSReferenceProcessor_b_v_+0xd7
V  [libjvm.so+0x1d5821];;  __1cMCMSCollectorSdo_compaction_work6Mb_v_+0x175
V  [libjvm.so+0x1d53a4];;  __1cMCMSCollectorbBacquire_control_and_collect6Mbb_v_+0x1a8
V  [libjvm.so+0x1d5186];;  __1cMCMSCollectorHcollect6MbbIb_v_+0x3e
V  [libjvm.so+0x1d513f];;  __1cbDConcurrentMarkSweepGenerationHcollect6MbbIb_v_+0x27
V  [libjvm.so+0x21a47d];;  __1cQGenCollectedHeapNdo_collection6MbbIbi_v_+0x555
V  [libjvm.so+0x1bfc98];;  __1cSGenCollectorPolicyZsatisfy_failed_allocation6MIb_pnIHeapWord__+0xb0
V  [libjvm.so+0x21a87e];;  __1cQGenCollectedHeapZsatisfy_failed_allocation6MIb_pnIHeapWord__+0x1e
V  [libjvm.so+0xfb6f5];;  __1cbAVM_GenCollectForAllocationEdoit6M_v_+0x8d
V  [libjvm.so+0xebabe];;  __1cMVM_OperationIevaluate6M_v_+0x76
V  [libjvm.so+0xeb990];;  __1cIVMThreadSevaluate_operation6MpnMVM_Operation__v_+0xac
V  [libjvm.so+0xa573a];;  __1cIVMThreadEloop6M_v_+0x27a
V  [libjvm.so+0xa53cc];;  __1cIVMThreadDrun6M_v_+0x88
V  [libjvm.so+0x329ce1];;  java_start+0xf9
C  [libc.so.1+0xa71d0];;  _thr_setup+0x4e
C  [libc.so.1+0xa74c0];;  _lwp_start+0x0

VM_Operation (0xf14ab674): GenCollectForAllocation, mode: safepoint, requested by thread 0x081c5c00


---------------  P R O C E S S  ---------------

Java Threads: ( => current thread )
  0x081c5c00 JavaThread "gc.gctests.FinalizeLock.FinalizeLock$SyncMethodCaller@1d1acd3" [_thread_blocked, id=15, stack(0xf145c000,0xf14ac000)]
  0x081c5000 JavaThread "gc.gctests.FinalizeLock.FinalizeLock$GarbageCreator@723d7c" [_thread_blocked, id=14, stack(0xf14ad000,0xf14fd000)]
  0x0817cc00 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=12, stack(0xf1a17000,0xf1a67000)]
  0x0817a000 JavaThread "CompilerThread0" daemon [_thread_blocked, id=11, stack(0xf157f000,0xf15ff000)]
  0x08178800 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=10, stack(0xf208c000,0xf20dc000)]
  0x08177000 JavaThread "Surrogate Locker Thread (CMS)" daemon [_thread_blocked, id=9, stack(0xf20dd000,0xf212d000)]
  0x08163c00 JavaThread "Finalizer" daemon [_thread_blocked, id=8, stack(0xf212e000,0xf217e000)]
  0x0815f000 JavaThread "Reference Handler" daemon [_thread_blocked, id=7, stack(0xfc218000,0xfc268000)]
  0x08070400 JavaThread "main" [_thread_blocked, id=2, stack(0xfe63f000,0xfe68f000)]

Other Threads:
=>0x0815cc00 VMThread [stack: 0xf217f000,0xf21ff000] [id=6]
  0x0817f800 WatcherThread [stack: 0xf14fe000,0xf157e000] [id=13]

VM state:at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread:  ([mutex/lock_event])
[0x0806f7b8] Threads_lock - owner thread: 0x0815cc00
[0x0806fc30] Heap_lock - owner thread: 0x081c5c00

Heap
 par new generation   total 14784K, used 14783K [0xf2200000, 0xf3200000, 0xf3200000)
  eden space 13184K, 100% used [0xf2200000, 0xf2ee0000, 0xf2ee0000)
  from space 1600K,  99% used [0xf2ee0000, 0xf306fd10, 0xf3070000)
  to   space 1600K,   0% used [0xf3070000, 0xf3070000, 0xf3200000)
 concurrent mark-sweep generation total 81920K, used 81919K [0xf3200000, 0xf8200000, 0xf8200000)
 concurrent-mark-sweep perm gen total 12288K, used 1893K [0xf8200000, 0xf8e00000, 0xfc200000)