JVM Crash 学习分析

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遇到如下错误 

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  Internal Error (ad_x86_32.cpp:879), pid=26139, tid=1847638928
#  Error: Unimplemented()
#
# JRE version: 6.0_21-b06
# Java VM: Java HotSpot(TM) Server VM (17.0-b16 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 (0x0989b000):  JavaThread "CompilerThread0" daemon [_thread_in_native, id=26152, stack(0x6e18b000,0x6e20c000)]

Stack: [0x6e18b000,0x6e20c000],  sp=0x6e209a00,  free space=1fa6e20c000k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V  [libjvm.so+0x6a9262]
V  [libjvm.so+0x2b290f]
V  [libjvm.so+0xa65f1]
V  [libjvm.so+0xa6f96]
V  [libjvm.so+0x5802d7]
V  [libjvm.so+0x582cdd]
V  [libjvm.so+0x57fae3]
V  [libjvm.so+0x27c096]
V  [libjvm.so+0x278099]
V  [libjvm.so+0x209767]
V  [libjvm.so+0x280f8c]
V  [libjvm.so+0x280839]
V  [libjvm.so+0x66feb6]
V  [libjvm.so+0x66959e]
V  [libjvm.so+0x57a89e]
C  [libpthread.so.0+0x5832]


Current CompileTask:
C2:3389      org.red5.server.net.rtmp.codec.RTMPProtocolEncoder.getHeaderType(Lorg/red5/server/net/rtmp/codec/RTMP;Lorg/red5/server/net/rtmp/message/Header;Lorg/red5/server/net/rtmp/message/Header;)B (142 bytes)

 后来发现是jdk的bug，真是破天荒呀，我也会遇到。

这个问题应该是jdk1.6_29版以前的bug，以后的版本修复

下面是解决办法，记忆备份

http://hllvm.group.iteye.com/group/topic/28201

http://seanhe.iteye.com/blog/905997