was产生javacore，用jca分析提示找不到thread dump

看了一下native_stderr.log出现以下日志信息
Unhandled exception
Type=Segmentation error vmState=0x00020002
Unhandled exception
Type=Segmentation error vmState=0x00020002
Windows_ExceptionCode=c0000005 J9Generic_Signal=00000004 ExceptionAddress=000007FFFF5E1AA7 ContextFlags=0010001f
Handler1=000007FFFF67CBF0 Handler2=000007FFFF64BC60
RDI=000000001BE4800E RSI=00000000002AB8E0 RAX=000000000000000E RBX=00000000012C3668
RCX=00000000B1401BEE RDX=00000000012C3668 R8=000000001BE4800E R9=000000001BE79187
R10=0000000000000001 R11=0000000000000000 R12=000007FFFF609090 R13=0000000000000000
R14=000000001BE4801A R15=0000000000000000
RIP=000007FFFF5E1AA7 RSP=000000006CA5F980 RBP=0000000000000000
XMM0 000000000000027f (f: 639.000000, d: 3.157079e-321)
XMM1 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM2 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM3 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM4 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM5 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM6 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM7 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM8 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM9 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM10 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM11 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM12 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM13 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM14 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM15 0000000000000000 (f: 0.000000, d: 0.000000e+000)
Module=C:Program FilesIBMWebSphereAppServerjavajrebincompressedrefsj9gc24.dll
Module_base_address=000007FFFF5C0000 Offset_in_DLL=0000000000021aa7
Target=2_40_20080816_022093_LEdSMr (Windows Server 2008 6.0 build 6002 Service Pack 2)
CPU=amd64 (16 logical CPUs) (0x3fefd5000 RAM)
Windows_ExceptionCode=c0000005 J9Generic_Signal=00000004 ExceptionAddress=000007FFFF5E1AA7 ContextFlags=0010001f
Handler1=000007FFFF67CBF0 Handler2=000007FFFF64BC60
RDI=000000001B90800E RSI=00000000002AB8E0 RAX=000000000000000E RBX=000000006C130BC8
RCX=0000000055400F1E RDX=000000006C130BC8 R8=000000001B90800E R9=000007FFFD1C0000
R10=0020000000000000 R11=0000000067930300 R12=000007FFFF609090 R13=0000000000000000
R14=000000001B90801A R15=0000000000000000
RIP=000007FFFF5E1AA7 RSP=000000006D75F980 RBP=0000000000000000
XMM0 000000000000027f (f: 639.000000, d: 3.157079e-321)
XMM1 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM2 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM3 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM4 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM5 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM6 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM7 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM8 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM9 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM10 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM11 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM12 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM13 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM14 0000000000000000 (f: 0.000000, d: 0.000000e+000)
XMM15 0000000000000000 (f: 0.000000, d: 0.000000e+000)
Module=C:Program FilesIBMWebSphereAppServerjavajrebincompressedrefsj9gc24.dll
Module_base_address=000007FFFF5C0000 Offset_in_DLL=0000000000021aa7
Target=2_40_20080816_022093_LEdSMr (Windows Server 2008 6.0 build 6002 Service Pack 2)
CPU=amd64 (16 logical CPUs) (0x3fefd5000 RAM)
JVMDUMP006I 正在处理转储事件“gpf”，详细信息“” － 请稍候。
JVMDUMP007I JVM 正在请求 System 转储（使用“C:Program FilesIBMWebSphereAppServerprofilesAppSrv01core.20120224.140226.5648.0001.dmp”）
JVMDUMP006I 正在处理转储事件“gpf”，详细信息“” － 请稍候。
JVMDUMP010I System 转储已写入 C:Program FilesIBMWebSphereAppServerprofilesAppSrv01core.20120224.140226.5648.0001.dmp 中
JVMDUMP007I JVM 正在请求 Snap 转储（使用“C:Program FilesIBMWebSphereAppServerprofilesAppSrv01Snap.20120224.140226.5648.0002.trc”）
JVMDUMP010I Snap 转储已写入 C:Program FilesIBMWebSphereAppServerprofilesAppSrv01Snap.20120224.140226.5648.0002.trc 中
UTE107: Error writing to tracefile:
JVMDUMP007I JVM 正在请求 Java 转储（使用“C:Program FilesIBMWebSphereAppServerprofilesAppSrv01javacore.20120224.140226.5648.0003.txt”）
JVMDUMP007I JVM 正在请求 System 转储（使用“C:Program FilesIBMWebSphereAppServerprofilesAppSrv01core.20120224.140226.5648.0004.dmp”）
JVMDUMP012E Java 转储中出错：C:Program FilesIBMWebSphereAppServerprofilesAppSrv01javacore.20120224.140226.5648.0003.txt
JVMDUMP013I 已处理转储事件“gpf”，详细信息“”。

用jca分析提示1.3G的javacore提示找不到thread dump，大家帮忙看看，是什么原因