Java VM Hotspot crash

#26709

Hello ,

we got occasionally a server hotspot crash during dynamic compiling the obfuscated class method

# Java VM: Java HotSpot(TM) Server VM (1.5.0_12-b04 mixed mode)

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T H R E A D

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Current thread (0x53e1c180): JavaThread “CompilerThread1” daemon [_thread_in_vm, id=3180]

Stack: [0x54150000,0x54190000)
[error occurred during error reporting, step 110, id 0xc0000005]

Current CompileTask:
opto:3052 org.zefer.html.doc.o.o00000(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String; (8 bytes)
…

and get none further information (i.e. java stacktrace) in server or system log’s.
(pd4ml.enableDebugInfo() has been set also)

As a result we need a complete web app server restart (tomcat 5)

Without any clue what’s going on it seams not very promising to get a bugfix for it.

So i suggest:
1. We would activate the heap log with param
-XX:+HeapDumpOnOutOfMemoryError
and wait for next error (hopefully with java stack trace)

2. Afterwards – as a workaround – we will set the param
-XX:CompileCommand=exclude,org/zefer/html/doc/o,o00000
to (hopefully) get rid of other server crashes

Do you agree with that ?
Will this lead to further problems or
have your any other proposals for to solve our problem ?

Thanks in advance

#28939

It looks like you’re hitting hotspot compiler bug.

If for some reason an upgrade to the most recent JVM version is not an option for you, as a workaround try to create a .hotspot_compiler file that excludes the call for org.zefer.html.doc.o.o00000

for example:

[language=java:fc72q1tt]#.hotspot_compiler file
exclude org/zefer/html/doc/o o00000[/language:fc72q1tt]
(the library is obfuscated, so the method signatures look strange)

BTW: could you please pubblish “VM Arguments” section contents of the crash report? Didi you overrire the default max heap size value with -Xmx parameter?

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