Question

它发生在我的代码中的同一个地方（虽然不是第一次执行该方法）但我无法做出错误的头或尾。（因此它是机器人的代码）。

如果有人能够让我知道它是什么类型的问题，那就非常感激。我认为它与线程（多线程应用程序）有关，但我真的不知道是什么？！？担心uni项目的最后期限迫在眉睫!!!

消息：

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0xb70f0ca7, pid=5065, tid=2145643376
#
# JRE version: 6.0_15-b03
# Java VM: Java HotSpot(TM) Server VM (14.1-b02 mixed mode linux-x86 )
# Problematic frame:
# V  [libjvm.so+0x4c9ca7]
#
# An error report file with more information is saved as:
# /home/thomas/workspace/sir13/hs_err_pid5065.log
#
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
#

日志：

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0xb70f0ca7, pid=5065, tid=2145643376
#
# JRE version: 6.0_15-b03
# Java VM: Java HotSpot(TM) Server VM (14.1-b02 mixed mode linux-x86 )
# Problematic frame:
# V  [libjvm.so+0x4c9ca7]
#
# 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 (0x0904ec00):  JavaThread "CompilerThread1" daemon [_thread_in_native, id=5078, stack(0x7fdbe000,0x7fe3f000)]

siginfo:si_signo=SIGSEGV: si_errno=0, si_code=1 (SEGV_MAPERR), si_addr=0x00000004

Registers:
EAX=0x00000000, EBX=0xb733d720, ECX=0x000003b4, EDX=0x00000000
ESP=0x7fe3bf30, EBP=0x7fe3bf78, ESI=0x7fe3c250, EDI=0x7e9a7790
EIP=0xb70f0ca7, CR2=0x00000004, EFLAGS=0x00010283

Top of Stack: (sp=0x7fe3bf30)
0x7fe3bf30:   00020008 7ec8de5c 7fe3c250 00000000
0x7fe3bf40:   7f610451 00001803 7e9a7790 000003f5
0x7fe3bf50:   7e920030 7f239910 7f23b349 7f23b348
0x7fe3bf60:   7f550e35 7fe3c250 0000021b b733d720
0x7fe3bf70:   000003bc 7f23db10 7fe3bfc8 b70f0997
0x7fe3bf80:   7fe3c240 7f23db10 00000000 00000002
0x7fe3bf90:   00000000 7fe3c1b0 00000000 00000000
0x7fe3bfa0:   00004000 00000020 7ec88870 00000002 

Instructions: (pc=0xb70f0ca7)
0xb70f0c97:   7d 08 8b 87 c8 02 00 00 89 c7 8b 45 c4 8b 14 87
0xb70f0ca7:   8b 42 04 8b 00 85 c0 75 22 8b 4e 04 8b 52 1c 39 

Stack: [0x7fdbe000,0x7fe3f000],  sp=0x7fe3bf30,  free space=503k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V  [libjvm.so+0x4c9ca7]
V  [libjvm.so+0x4c9997]
V  [libjvm.so+0x4c6e23]
V  [libjvm.so+0x25b75f]
V  [libjvm.so+0x2585df]
V  [libjvm.so+0x1f2c2f]
V  [libjvm.so+0x260ceb]
V  [libjvm.so+0x260609]
V  [libjvm.so+0x617286]
V  [libjvm.so+0x6108fe]
V  [libjvm.so+0x531c4e]
C  [libpthread.so.0+0x580e]


Current CompileTask:
C2:133  !   BehaviourLeftUnexplored.action()V (326 bytes)


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

Java Threads: ( => current thread )
  0x08fb5400 JavaThread "DestroyJavaVM" [_thread_blocked, id=5066, stack(0xb6bb0000,0xb6c01000)]
  0x09213c00 JavaThread "Thread-4" [_thread_blocked, id=5085, stack(0x7eeaf000,0x7ef00000)]
  0x09212c00 JavaThread "Thread-3" [_thread_in_Java, id=5084, stack(0x7f863000,0x7f8b4000)]
  0x09206800 JavaThread "AWT-XAWT" daemon [_thread_in_native, id=5083, stack(0x7f8b4000,0x7f905000)]
  0x091b7400 JavaThread "Java2D Disposer" daemon [_thread_blocked, id=5082, stack(0x7f93e000,0x7f98f000)]
  0x09163c00 JavaThread "Thread-0" [_thread_in_native, id=5081, stack(0x7fc87000,0x7fcd8000)]
  0x09050c00 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=5079, stack(0x7fd6d000,0x7fdbe000)]
=>0x0904ec00 JavaThread "CompilerThread1" daemon [_thread_in_native, id=5078, stack(0x7fdbe000,0x7fe3f000)]
  0x0904c000 JavaThread "CompilerThread0" daemon [_thread_blocked, id=5077, stack(0x7fe3f000,0x7fec0000)]
  0x0904a800 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=5076, stack(0x7fec0000,0x7ff11000)]
  0x09036c00 JavaThread "Finalizer" daemon [_thread_blocked, id=5075, stack(0x7ff57000,0x7ffa8000)]
  0x09035400 JavaThread "Reference Handler" daemon [_thread_blocked, id=5074, stack(0x7ffa8000,0x7fff9000)]

Other Threads:
  0x09031400 VMThread [stack: 0x7fff9000,0x8007a000] [id=5073]
  0x09052800 WatcherThread [stack: 0x7fcec000,0x7fd6d000] [id=5080]

VM state:not at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread: None

Heap
 PSYoungGen      total 46784K, used 32032K [0xae650000, 0xb3440000, 0xb3a50000)
  eden space 46720K, 68% used [0xae650000,0xb0588f48,0xb13f0000)
  from space 64K, 95% used [0xb3390000,0xb339f428,0xb33a0000)
  to   space 384K, 0% used [0xb33e0000,0xb33e0000,0xb3440000)
 PSOldGen        total 43008K, used 20872K [0x84650000, 0x87050000, 0xae650000)
  object space 43008K, 48% used [0x84650000,0x85ab2308,0x87050000)
 PSPermGen       total 16384K, used 5115K [0x80650000, 0x81650000, 0x84650000)
  object space 16384K, 31% used [0x80650000,0x80b4ec30,0x81650000)

Dynamic libraries:
08048000-08052000 r-xp 00000000 08:05 34708      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/bin/java
08052000-08053000 rwxp 00009000 08:05 34708      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/bin/java
08faf000-09220000 rwxp 00000000 00:00 0          [heap]
7e900000-7e9f9000 rwxp 00000000 00:00 0 
7e9f9000-7ea00000 ---p 00000000 00:00 0 
7ea00000-7ea41000 rwxp 00000000 00:00 0 
7ea41000-7eb00000 ---p 00000000 00:00 0 
7eb00000-7ebfc000 rwxp 00000000 00:00 0 
7ebfc000-7ec00000 ---p 00000000 00:00 0 
7ec00000-7ecf7000 rwxp 00000000 00:00 0 
7ecf7000-7ed00000 ---p 00000000 00:00 0 
7ed00000-7ede7000 rwxp 00000000 00:00 0 
7ede7000-7ee00000 ---p 00000000 00:00 0 
7eeaf000-7eeb2000 ---p 00000000 00:00 0 
7eeb2000-7ef00000 rwxp 00000000 00:00 0 
7ef00000-7eff9000 rwxp 00000000 00:00 0 
7eff9000-7f000000 ---p 00000000 00:00 0 
7f100000-7f1f6000 rwxp 00000000 00:00 0 
7f1f6000-7f200000 ---p 00000000 00:00 0 
7f200000-7f2fc000 rwxp 00000000 00:00 0 
7f2fc000-7f300000 ---p 00000000 00:00 0 
7f300000-7f4fe000 rwxp 00000000 00:00 0 
7f4fe000-7f500000 ---p 00000000 00:00 0 
7f500000-7f5fb000 rwxp 00000000 00:00 0 
7f5fb000-7f600000 ---p 00000000 00:00 0 
7f600000-7f6f9000 rwxp 00000000 00:00 0 
7f6f9000-7f700000 ---p 00000000 00:00 0 
7f700000-7f800000 rwxp 00000000 00:00 0 
7f830000-7f836000 r-xs 00000000 08:05 241611     /var/cache/fontconfig/945677eb7aeaf62f1d50efc3fb3ec7d8-x86.cache-2
7f836000-7f838000 r-xs 00000000 08:05 241612     /var/cache/fontconfig/99e8ed0e538f840c565b6ed5dad60d56-x86.cache-2
7f838000-7f83b000 r-xs 00000000 08:05 241620     /var/cache/fontconfig/e383d7ea5fbe662a33d9b44caf393297-x86.cache-2
7f83b000-7f846000 r-xs 00000000 08:05 241600     /var/cache/fontconfig/0f34bcd4b6ee430af32735b75db7f02b-x86.cache-2
7f863000-7f866000 ---p 00000000 00:00 0 
7f866000-7f8b4000 rwxp 00000000 00:00 0 
7f8b4000-7f8b7000 ---p 00000000 00:00 0 
7f8b7000-7f905000 rwxp 00000000 00:00 0 
7f905000-7f909000 r-xp 00000000 08:05 5012       /usr/lib/libXfixes.so.3.1.0
7f909000-7f90a000 r-xp 00003000 08:05 5012       /usr/lib/libXfixes.so.3.1.0
7f90a000-7f90b000 rwxp 00004000 08:05 5012       /usr/lib/libXfixes.so.3.1.0
7f90b000-7f913000 r-xp 00000000 08:05 5032       /usr/lib/libXrender.so.1.3.0
7f913000-7f914000 r-xp 00007000 08:05 5032       /usr/lib/libXrender.so.1.3.0
7f914000-7f915000 rwxp 00008000 08:05 5032       /usr/lib/libXrender.so.1.3.0
7f915000-7f91e000 r-xp 00000000 08:05 5004       /usr/lib/libXcursor.so.1.0.2
7f91e000-7f91f000 r-xp 00008000 08:05 5004       /usr/lib/libXcursor.so.1.0.2
7f91f000-7f920000 rwxp 00009000 08:05 5004       /usr/lib/libXcursor.so.1.0.2
7f92f000-7f931000 r-xs 00000000 08:05 241622     /var/cache/fontconfig/f24b2111ab8703b4e963115a8cf14259-x86.cache-2
7f931000-7f932000 r-xs 00000000 08:05 241606     /var/cache/fontconfig/4c73fe0c47614734b17d736dbde7580a-x86.cache-2
7f932000-7f936000 r-xs 00000000 08:05 241599     /var/cache/fontconfig/062808c12e6e608270f93bb230aed730-x86.cache-2
7f936000-7f93e000 r-xs 00000000 08:05 241617     /var/cache/fontconfig/d52a8644073d54c13679302ca1180695-x86.cache-2
7f93e000-7f941000 ---p 00000000 00:00 0 
7f941000-7f98f000 rwxp 00000000 00:00 0 
7f98f000-7fa0e000 r-xp 00000000 08:05 34755      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/libfontmanager.so
7fa0e000-7fa19000 rwxp 0007e000 08:05 34755      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/libfontmanager.so
7fa19000-7fa1d000 rwxp 00000000 00:00 0 
7fa1d000-7fa21000 r-xp 00000000 08:05 5008       /usr/lib/libXdmcp.so.6.0.0
7fa21000-7fa22000 rwxp 00003000 08:05 5008       /usr/lib/libXdmcp.so.6.0.0
7fa22000-7fa3e000 r-xp 00000000 08:05 6029       /usr/lib/libxcb.so.1.1.0
7fa3e000-7fa3f000 r-xp 0001c000 08:05 6029       /usr/lib/libxcb.so.1.1.0
7fa3f000-7fa40000 rwxp 0001d000 08:05 6029       /usr/lib/libxcb.so.1.1.0
7fa40000-7fa42000 r-xp 00000000 08:05 4997       /usr/lib/libXau.so.6.0.0
7fa42000-7fa43000 r-xp 00001000 08:05 4997       /usr/lib/libXau.so.6.0.0
7fa43000-7fa44000 rwxp 00002000 08:05 4997       /usr/lib/libXau.so.6.0.0
7fa44000-7fb6e000 r-xp 00000000 08:05 4991       /usr/lib/libX11.so.6.2.0
7fb6e000-7fb6f000 ---p 0012a000 08:05 4991       /usr/lib/libX11.so.6.2.0
7fb6f000-7fb70000 r-xp 0012a000 08:05 4991       /usr/lib/libX11.so.6.2.0
7fb70000-7fb72000 rwxp 0012b000 08:05 4991       /usr/lib/libX11.so.6.2.0
7fb72000-7fb73000 rwxp 00000000 00:00 0 
7fb73000-7fb81000 r-xp 00000000 08:05 5010       /usr/lib/libXext.so.6.4.0
7fb81000-7fb82000 r-xp 0000d000 08:05 5010       /usr/lib/libXext.so.6.4.0
7fb82000-7fb83000 rwxp 0000e000 08:05 5010       /usr/lib/libXext.so.6.4.0
7fb83000-7fb84000 r-xs 00000000 08:05 241614     /var/cache/fontconfig/c05880de57d1f5e948fdfacc138775d9-x86.cache-2
7fb84000-7fb87000 r-xs 00000000 08:05 241613     /var/cache/fontconfig/a755afe4a08bf5b97852ceb7400b47bc-x86.cache-2
7fb87000-7fb8a000 r-xs 00000000 08:05 241608     /var/cache/fontconfig/6d41288fd70b0be22e8c3a91e032eec0-x86.cache-2
7fb8a000-7fb92000 r-xs 00000000 08:05 219560     /var/cache/fontconfig/e13b20fdb08344e0e664864cc2ede53d-x86.cache-2
7fb92000-7fbd5000 r-xp 00000000 08:05 34752      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/xawt/libmawt.so
7fbd5000-7fbd7000 rwxp 00043000 08:05 34752      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/xawt/libmawt.so
7fbd7000-7fbd8000 rwxp 00000000 00:00 0 
7fbd8000-7fc5c000 r-xp 00000000 08:05 34750      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/libawt.so
7fc5c000-7fc63000 rwxp 00084000 08:05 34750      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/libawt.so
7fc63000-7fc87000 rwxp 00000000 00:00 0 
7fc87000-7fc8a000 ---p 00000000 00:00 0 
7fc8a000-7fcd8000 rwxp 00000000 00:00 0 
7fcd8000-7fceb000 r-xp 00000000 08:05 34739      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/libnet.so
7fceb000-7fcec000 rwxp 00013000 08:05 34739      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/libnet.so
7fcec000-7fced000 ---p 00000000 00:00 0 
7fced000-7fd6d000 rwxp 00000000 00:00 0 
7fd6d000-7fd70000 ---p 00000000 00:00 0 
7fd70000-7fdbe000 rwxp 00000000 00:00 0 
7fdbe000-7fdc1000 ---p 00000000 00:00 0 
7fdc1000-7fe3f000 rwxp 00000000 00:00 0 
7fe3f000-7fe42000 ---p 00000000 00:00 0 
7fe42000-7fec0000 rwxp 00000000 00:00 0 
7fec0000-7fec3000 ---p 00000000 00:00 0 
7fec3000-7ff11000 rwxp 00000000 00:00 0 
7ff11000-7ff18000 r-xs 00000000 08:05 134616     /usr/lib/gconv/gconv-modules.cache
7ff18000-7ff57000 r-xp 00000000 08:05 136279     /usr/lib/locale/en_GB.utf8/LC_CTYPE
7ff57000-7ff5a000 ---p 00000000 00:00 0 
7ff5a000-7ffa8000 rwxp 00000000 00:00 0 
7ffa8000-7ffab000 ---p 00000000 00:00 0 
7ffab000-7fff9000 rwxp 00000000 00:00 0 
7fff9000-7fffa000 ---p 00000000 00:00 0 
7fffa000-800ad000 rwxp 00000000 00:00 0 
800ad000-80243000 r-xs 02fb3000 08:05 34883      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/rt.jar
80243000-80244000 ---p 00000000 00:00 0 
80244000-802c4000 rwxp 00000000 00:00 0 
802c4000-802c5000 ---p 00000000 00:00 0 
802c5000-8034d000 rwxp 00000000 00:00 0 
8034d000-80365000 rwxp 00000000 00:00 0 
80365000-8037a000 rwxp 00000000 00:00 0 
8037a000-804b5000 rwxp 00000000 00:00 0 
804b5000-804bd000 rwxp 00000000 00:00 0 
804bd000-804d5000 rwxp 00000000 00:00 0 
804d5000-804ea000 rwxp 00000000 00:00 0 
804ea000-80625000 rwxp 00000000 00:00 0 
80625000-8064c000 rwxp 00000000 00:00 0 
8064c000-8064f000 rwxp 00000000 00:00 0 
8064f000-81650000 rwxp 00000000 00:00 0 
81650000-84650000 rwxp 00000000 00:00 0 
84650000-87050000 rwxp 00000000 00:00 0 
87050000-ae650000 rwxp 00000000 00:00 0 
ae650000-b3440000 rwxp 00000000 00:00 0 
b3440000-b3a50000 rwxp 00000000 00:00 0 
b3a50000-b3a52000 r-xs 00000000 08:05 241602     /var/cache/fontconfig/2c5ba8142dffc8bf0377700342b8ca1a-x86.cache-2
b3a52000-b3a5b000 r-xp 00000000 08:05 5018       /usr/lib/libXi.so.6.0.0
b3a5b000-b3a5c000 r-xp 00008000 08:05 5018       /usr/lib/libXi.so.6.0.0
b3a5c000-b3a5d000 rwxp 00009000 08:05 5018       /usr/lib/libXi.so.6.0.0
b3a5d000-b3a66000 rwxp 00000000 00:00 0 
b3a66000-b3b1d000 rwxp 00000000 00:00 0 
b3b1d000-b3d5d000 rwxp 00000000 00:00 0 
b3d5d000-b6b1d000 rwxp 00000000 00:00 0 
b6b1d000-b6b2c000 r-xp 00000000 08:05 34735      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/libzip.so
b6b2c000-b6b2e000 rwxp 0000e000 08:05 34735      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/libzip.so
b6b2e000-b6b38000 r-xp 00000000 08:05 1042       /lib/tls/i686/cmov/libnss_files-2.10.1.so
b6b38000-b6b39000 r-xp 00009000 08:05 1042       /lib/tls/i686/cmov/libnss_files-2.10.1.so
b6b39000-b6b3a000 rwxp 0000a000 08:05 1042       /lib/tls/i686/cmov/libnss_files-2.10.1.so
b6b3a000-b6b43000 r-xp 00000000 08:05 1055       /lib/tls/i686/cmov/libnss_nis-2.10.1.so
b6b43000-b6b44000 r-xp 00008000 08:05 1055       /lib/tls/i686/cmov/libnss_nis-2.10.1.so
b6b44000-b6b45000 rwxp 00009000 08:05 1055       /lib/tls/i686/cmov/libnss_nis-2.10.1.so
b6b45000-b6b4b000 r-xp 00000000 08:05 1028       /lib/tls/i686/cmov/libnss_compat-2.10.1.so
b6b4b000-b6b4c000 r-xp 00005000 08:05 1028       /lib/tls/i686/cmov/libnss_compat-2.10.1.so
b6b4c000-b6b4d000 rwxp 00006000 08:05 1028       /lib/tls/i686/cmov/libnss_compat-2.10.1.so
b6b4d000-b6b54000 r-xs 00035000 08:05 304369     /home/thomas/workspace/sir13/javaclient/jars/javaclient.jar
b6b54000-b6b5c000 rwxs 00000000 08:05 393570     /tmp/hsperfdata_thomas/5065
b6b5c000-b6b6f000 r-xp 00000000 08:05 1020       /lib/tls/i686/cmov/libnsl-2.10.1.so
b6b6f000-b6b70000 r-xp 00012000 08:05 1020       /lib/tls/i686/cmov/libnsl-2.10.1.so
b6b70000-b6b71000 rwxp 00013000 08:05 1020       /lib/tls/i686/cmov/libnsl-2.10.1.so
b6b71000-b6b73000 rwxp 00000000 00:00 0 
b6b73000-b6b77000 r-xp 00000000 08:05 5038       /usr/lib/libXtst.so.6.1.0
b6b77000-b6b78000 r-xp 00004000 08:05 5038       /usr/lib/libXtst.so.6.1.0
b6b78000-b6b79000 rwxp 00005000 08:05 5038       /usr/lib/libXtst.so.6.1.0
b6b79000-b6b7f000 r-xp 00000000 08:05 34723      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/native_threads/libhpi.so
b6b7f000-b6b80000 rwxp 00006000 08:05 34723      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/native_threads/libhpi.so
b6b80000-b6b81000 rwxp 00000000 00:00 0 
b6b81000-b6b82000 r-xp 00000000 00:00 0 
b6b82000-b6ba5000 r-xp 00000000 08:05 34733      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/libjava.so
b6ba5000-b6ba7000 rwxp 00023000 08:05 34733      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/libjava.so
b6ba7000-b6bae000 r-xp 00000000 08:05 1733       /lib/tls/i686/cmov/librt-2.10.1.so
b6bae000-b6baf000 r-xp 00006000 08:05 1733       /lib/tls/i686/cmov/librt-2.10.1.so
b6baf000-b6bb0000 rwxp 00007000 08:05 1733       /lib/tls/i686/cmov/librt-2.10.1.so
b6bb0000-b6bb3000 ---p 00000000 00:00 0 
b6bb3000-b6c01000 rwxp 00000000 00:00 0 
b6c01000-b6c25000 r-xp 00000000 08:05 1016       /lib/tls/i686/cmov/libm-2.10.1.so
b6c25000-b6c26000 r-xp 00023000 08:05 1016       /lib/tls/i686/cmov/libm-2.10.1.so
b6c26000-b6c27000 rwxp 00024000 08:05 1016       /lib/tls/i686/cmov/libm-2.10.1.so
b6c27000-b72f4000 r-xp 00000000 08:05 34724      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/server/libjvm.so
b72f4000-b7341000 rwxp 006cc000 08:05 34724      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/server/libjvm.so
b7341000-b7765000 rwxp 00000000 00:00 0 
b7765000-b78a3000 r-xp 00000000 08:05 967        /lib/tls/i686/cmov/libc-2.10.1.so
b78a3000-b78a4000 ---p 0013e000 08:05 967        /lib/tls/i686/cmov/libc-2.10.1.so
b78a4000-b78a6000 r-xp 0013e000 08:05 967        /lib/tls/i686/cmov/libc-2.10.1.so
b78a6000-b78a7000 rwxp 00140000 08:05 967        /lib/tls/i686/cmov/libc-2.10.1.so
b78a7000-b78aa000 rwxp 00000000 00:00 0 
b78aa000-b78ac000 r-xp 00000000 08:05 1014       /lib/tls/i686/cmov/libdl-2.10.1.so
b78ac000-b78ad000 r-xp 00001000 08:05 1014       /lib/tls/i686/cmov/libdl-2.10.1.so
b78ad000-b78ae000 rwxp 00002000 08:05 1014       /lib/tls/i686/cmov/libdl-2.10.1.so
b78ae000-b78b5000 r-xp 00000000 08:05 34734      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/jli/libjli.so
b78b5000-b78b7000 rwxp 00006000 08:05 34734      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/jli/libjli.so
b78b7000-b78b8000 rwxp 00000000 00:00 0 
b78b8000-b78cd000 r-xp 00000000 08:05 1081       /lib/tls/i686/cmov/libpthread-2.10.1.so
b78cd000-b78ce000 r-xp 00014000 08:05 1081       /lib/tls/i686/cmov/libpthread-2.10.1.so
b78ce000-b78cf000 rwxp 00015000 08:05 1081       /lib/tls/i686/cmov/libpthread-2.10.1.so
b78cf000-b78d1000 rwxp 00000000 00:00 0 
b78d1000-b78d2000 r-xs 00000000 08:05 161622     /var/cache/fontconfig/4794a0821666d79190d59a36cb4f44b5-x86.cache-2
b78d2000-b78d4000 r-xs 00000000 08:05 241610     /var/cache/fontconfig/7ef2298fde41cc6eeb7af42e48b7d293-x86.cache-2
b78d4000-b78df000 r-xp 00000000 08:05 34732      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/libverify.so
b78df000-b78e0000 rwxp 0000b000 08:05 34732      /usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/libverify.so
b78e0000-b78e2000 rwxp 00000000 00:00 0 
b78e2000-b78e3000 r-xp 00000000 00:00 0          [vdso]
b78e3000-b78fe000 r-xp 00000000 08:05 64         /lib/ld-2.10.1.so
b78fe000-b78ff000 r-xp 0001a000 08:05 64         /lib/ld-2.10.1.so
b78ff000-b7900000 rwxp 0001b000 08:05 64         /lib/ld-2.10.1.so
bfc33000-bfc48000 rwxp 00000000 00:00 0          [stack]

VM Arguments:
jvm_args: -Dfile.encoding=UTF-8 
java_command: Main
Launcher Type: SUN_STANDARD

Environment Variables:
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
USERNAME=thomas
LD_LIBRARY_PATH=/usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/server:/usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386:/usr/lib/jvm/java-6-sun-1.6.0.15/jre/../lib/i386:/usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386/client:/usr/lib/jvm/java-6-sun-1.6.0.15/jre/lib/i386:/usr/lib/xulrunner-addons:/usr/lib/xulrunner-addons
SHELL=/bin/bash
DISPLAY=:0.0

Signal Handlers:
SIGSEGV: [libjvm.so+0x650690], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGBUS: [libjvm.so+0x650690], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGFPE: [libjvm.so+0x52f580], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGPIPE: [libjvm.so+0x52f580], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGXFSZ: [libjvm.so+0x52f580], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGILL: [libjvm.so+0x52f580], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGUSR1: SIG_DFL, sa_mask[0]=0x00000000, sa_flags=0x00000000
SIGUSR2: [libjvm.so+0x532170], sa_mask[0]=0x00000004, sa_flags=0x10000004
SIGHUP: [libjvm.so+0x531ea0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGINT: [libjvm.so+0x531ea0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGTERM: [libjvm.so+0x531ea0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGQUIT: [libjvm.so+0x531ea0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004


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

OS:squeeze/sid

uname:Linux 2.6.31-20-generic #57-Ubuntu SMP Mon Feb 8 09:05:19 UTC 2010 i686
libc:glibc 2.10.1 NPTL 2.10.1 
rlimit: STACK 8192k, CORE 0k, NPROC infinity, NOFILE 1024, AS infinity
load average:1.07 0.55 0.23

CPU:total 2 (2 cores per cpu, 1 threads per core) family 6 model 15 stepping 13, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3

Memory: 4k page, physical 3095836k(1519972k free), swap 1261060k(1261060k free)

vm_info: Java HotSpot(TM) Server VM (14.1-b02) for linux-x86 JRE (1.6.0_15-b03), built on Jul  2 2009 15:49:13 by "java_re" with gcc 3.2.1-7a (J2SE release)

time: Mon Mar 22 12:08:40 2010
elapsed time: 21 seconds

Answer 1

以下错误：

SIGSEGV (0xb) at pc=0xb70f0ca7, pid=5065, tid=2145643376

在某处显示您正在访问无效的内存地址或来自进程ID的NULL（5065）（此时不相关）。

所以，如果你正在编程一个机器人，那就意味着你要么：

使用可以与串口通信的库（DLL）来访问该机器人，与库通信的代码可能会传递一个NULL，而这反过来会在DLL中崩溃。
编写您自己的本机库，然后访问NULL或无效的内存地址。

然后JVM崩溃了。我无法帮助你进一步说明这一点，因为我不知道你的编程（用Java）如何与你的机器人进行通信所以这只是一个调查。

了解SIGSEGV。

Answer 2

您正在运行Java 1.6.0修补程序15.根据发行说明，最新的修补程序版本（Java 1.6.0修补程序18）修复了许多JVM崩溃错误。所以值得尝试升级。

然而，你的问题是由flakey JNI代码引起的理论也是合理的。

以下是关于Java 6的Troubleshooting System Crashes的一些Sun文档。

Java致命错误，不知道是什么意思

2 个答案: