AIX6.1 + ibm jdk1.5 SR12 OA 不定时宕机 jvm 进程直接 crash 掉

在AIX6.0 或者 5.3 上面一点问题没有，部署到 AIX6.1 上就不定时宕机，jvm 进程直接crash 掉了； 5天会宕机3 4次，OA运行日志 在宕机前10分钟内什么错误都没有。留给我分析的就下面这个 javacore 里面的内容，根据 javacore 判断肯定没有内存溢出，因为宕机的时候有 20% 的空闲内存。 核心信息就两句 Dump Event "gpf" (00002000) received  和 /oa/jdk_bak/jre/bin/libj9jit23.so 。
    此问题压抑了快两个月，用户快绝望的时候找到解决办法了。
    最终解决问题：换成 ibm jdk 1.6SR16，代码什么都不用改。


NULL           ------------------------------------------------------------------------
0SECTION       TITLE subcomponent dump routine
NULL           ===============================
1TISIGINFO     Dump Event "gpf" (00002000) received
1TIDATETIME    Date:                 2014/07/21 at 08:49:23
1TIFILENAME    Javacore filename:   /oa/bin/javacore.20140721.084905.495716.0003.txt
NULL           ------------------------------------------------------------------------
0SECTION       GPINFO subcomponent dump routine
NULL           ================================
2XHOSLEVEL     OS Level         : AIX 6.1
2XHCPUS        Processors -
3XHCPUARCH       Architecture   : ppc64
3XHNUMCPUS       How Many       : 16
NULL          
1XHEXCPCODE    J9Generic_Signal_Number: 0000000000000004
1XHEXCPCODE    Signal_Number: 000000000000000B
1XHEXCPCODE    Error_Value: 0000000000000000
1XHEXCPCODE    Signal_Code: 0000000000000033
1XHEXCPCODE    Handler1: 08001000A001E9F0
1XHEXCPCODE    Handler2: 08001000A0016DB8
NULL          
1XHEXCPMODULE  Module: /oa/jdk_bak/jre/bin/libj9jit23.so
1XHEXCPMODULE  Module_base_address: 0800000000128000
NULL          
1XHREGISTERS   Registers:
2XHREGISTER      R0:00000001163E5859
2XHREGISTER      R1:000000013063ABD0
2XHREGISTER      R2:08001000A0081740
2XHREGISTER      R3:0000000000000000
2XHREGISTER      R4:00000001163E5858
2XHREGISTER      R5:070000000D9A3C88
2XHREGISTER      R6:070000000D9A3C88
2XHREGISTER      R7:0000000000000000
2XHREGISTER      R8:0000000000000002
2XHREGISTER      R9:0000000000000008
2XHREGISTER      R10:00000000009BEE88
2XHREGISTER      R11:0800000000147680
2XHREGISTER      R12:0700000000E928F0
2XHREGISTER      R13:0000000130643800
2XHREGISTER      R14:0000000126244410
2XHREGISTER      R15:0000000121359100
2XHREGISTER      R16:000000011394ECB0
2XHREGISTER      R17:00000001159BDF10
2XHREGISTER      R18:0000000116361308
2XHREGISTER      R19:0000000000000064
2XHREGISTER      R20:0000000000000000
2XHREGISTER      R21:0000000000000000
2XHREGISTER      R22:070000006F2CA068
2XHREGISTER      R23:0000000116A5B6D0
2XHREGISTER      R24:0000000000000000
2XHREGISTER      R25:070000000D9A3C88
2XHREGISTER      R26:0700000000EB3590
2XHREGISTER      R27:070000000D9A3C88
2XHREGISTER      R28:0000000000000601
2XHREGISTER      R29:070000000D89C7A0
2XHREGISTER      R30:070000000D9A3C88
2XHREGISTER      R31:0000000116361308
2XHREGISTER      FPR0:FFF8000000000001
2XHREGISTER      FPR1:3FF8000000000000
2XHREGISTER      FPR2:3FE8000000000000
2XHREGISTER      FPR3:4105F90000000000
2XHREGISTER      FPR4:4051800000000000
2XHREGISTER      FPR5:0000000000000000
2XHREGISTER      FPR6:0000000000000000
2XHREGISTER      FPR7:0000000000000000
2XHREGISTER      FPR8:0000000000000000
2XHREGISTER      FPR9:0000000000000000
2XHREGISTER      FPR10:0000000000000000
2XHREGISTER      FPR11:0000000000000000
2XHREGISTER      FPR12:0000000000000000
2XHREGISTER      FPR13:0000000000000000
2XHREGISTER      FPR14:0000000000000000
2XHREGISTER      FPR15:0000000000000000
2XHREGISTER      FPR16:0000000000000000
2XHREGISTER      FPR17:0000000000000000
2XHREGISTER      FPR18:0000000000000000
2XHREGISTER      FPR19:0000000000000000
2XHREGISTER      FPR20:0000000000000000
2XHREGISTER      FPR21:0000000000000000
2XHREGISTER      FPR22:0000000000000000
2XHREGISTER      FPR23:0000000000000000
2XHREGISTER      FPR24:0000000000000000
2XHREGISTER      FPR25:0000000000000000
2XHREGISTER      FPR26:0000000000000000
2XHREGISTER      FPR27:0000000000000000
2XHREGISTER      FPR28:0000000000000000
2XHREGISTER      FPR29:0000000000000000
2XHREGISTER      FPR30:0000000000000000
2XHREGISTER      FPR31:0000000000000000
2XHREGISTER      IAR:0800000000146E94
2XHREGISTER      LR:0800000000147848
2XHREGISTER      MSR:A00000000000D032
2XHREGISTER      CTR:0800000000147680
2XHREGISTER      CR:2400002420000000
2XHREGISTER      FPSCR:8202200000000000
2XHREGISTER      XER:2000000082022000
NULL          
1XHFLAGS       VM flags:00000000
NULL          
NULL           ------------------------------------------------------------------------
0SECTION       ENVINFO subcomponent dump routine