A query wrt RMI on JRockit JVM

Hi
I have a query wrt RMI on JRockit JVM.
In case of SUN JVM we define it as : -Djava.rmi.server.codebase=file:///%SERVER_DIR%/a_loadbalancer_rmi_server.jar file:///%SERVER_DIR%/a_init.jar
Either in the start script of the server or in JVM arguments
i.e. the files which need to be utilized are separated by a space
But with JRockit we have to modify it to : -Djava.rmi.server.codebase=file:///%SERVER_DIR%/a_loadbalancer_rmi_server.jar:file:///%SERVER_DIR%/a_init.jar
(“:” (colon) is added in between the rmi jars instead of a “ “(space))
Is this expected behavior - is there any document / link which outlines the same?
Thanks and regards
Anil

HI Anil,
If that is happening with Sun JDK then it is right to have the codebase separated by a Single Space as mentioned in the following Document:
http://download.oracle.com/javase/1.4.2/docs/guide/rmi/javarmiproperties.html
-Djava.rmi.server.codebase="http://webfront/myStuff.jar http://webwave/myOtherStuff.jar"
NOTE: the space Separated Whole Path must be present inside a Double Quote as mentioned above.
Thanks
Ravish Mody

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    There is a JVM crash (code generation) when hashCode() in called on a String. Error message is: Illegal memory access. We have tried turning off optimization using -XnoOpt as well -Xnoopt without success. Crash is seen on both the platforms.
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    ===== BEGIN DUMP =============================================================
    JRockit dump produced after 0 days, 00:06:07 on Thu Apr 16 12:07:54 2009
    * If you see this dump, please go to *
    * http://edocs.bea.com/jrockit/go2troubleshooting.html *
    * for troubleshooting information. *
    Additional information is available in:
    D:\tools\bea103\user_projects\domains\cim8\jrockit.4588.dump
    D:\tools\bea103\user_projects\domains\cim8\jrockit.4588.mdmp
    Error Message: Illegal memory access. [54]
    Exception Rec: EXCEPTION_ACCESS_VIOLATION (c0000005) at 0x0046D11A - memory at 0x0000001B could not be read.
    Minidump : Wrote mdmp. Size is 770MB
    SafeDllMode : -1
    Version : BEA JRockit(R) R27.6.0-50_o-100423-1.6.0_05-20080626-2105-windows-ia32
    GC Strategy : Mode: throughput. Currently using strategy: genparpar
    GC Status : OC is not running. Last finished OC was OC#4.
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    OC History : Strategy genparpar was used for OC#1 to OC#4.
    YC History : Ran 5 YCs before OC#1.
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    : Ran 1 YCs before OC#3.
    : Ran 1 YCs before OC#4.
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    YC Promotion : Last YC successfully promoted all objects
    Heap : 0x00C00000 - 0x20C00000 (Size: 512 MB)
    Compaction : 0x02C00000 - 0x04C00000 (Current compaction type: internal)
    NurseryList : 0x00F09148 - 0x0F8F6BE8
    KeepArea : 0x101E3398 - 0x0FA7BB38
    NurseryMarker: [ 0x101E3398,  0x0FA7BB38 ]
    CompRefs : References are 32-bit.
    CPU : Intel Pentium 4 SSE SSE2 SSE3 NetBurst EM64T
    Number CPUs : 2
    Tot Phys Mem : 3489136640 (3327 MB)
    OS version : Microsoft Windows XP version 5.1 Service Pack 3 (Build 2600) (32-bit)
    Thread System: Windows Threads
    Java locking : Normal
    State : JVM is running
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    OutOfMemory : 0 OutOfMemoryErrors have occured
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    eax = 0000001b ecx = 2ff00210 edx = 2ff00960 ebx = 2ff07a40
    esp = 256bf3b8 ebp = 2ff04a28 esi = 256bf574 edi = 2f5626e8
    es = 00000023 cs = 0000001b ss = 00000023 ds = 00000023
    fs = 0000003b gs = 00000000
    eip = 0046d11a eflags = 00010202
    Stack:
    (* marks the word pointed to by the stack pointer)
    256bf3b8: 256bf574* 256bf5b5 000000b5 000000a9 00000000 0047b101
    256bf3d0: 0000001b 2ff079b0 00000000 00000039 256bf574 00000038
    256bf3e8: 000000a9 2432042c 256bf424 00000030 0042f73c 256bf5b5
    256bf400: 00000039 2ff04a28 2ff048e0 2ff04a28 00000042 00000005
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    (* marks the word pointed to by the instruction pointer)
    0046d0e8: 6a57006a e8515302 0003419c 833c468b c08540c4 0e8b5a75
    0046d100: c085018b 008b0274 082440f6 518b4a75 003a830c 448b4274
    0046d118: 108b1824* 0000e281 fa811ff0 00100000 d2330474 408b05eb
    0046d130: 8b108b18 74c08501 f6008b02 74082440 ebc03304 0c498b05
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    (* denotes the module causing the exception)
    00400000-00410fff d:\tools\bea103\JROCKI~1\bin\java.exe
    7c900000-7c9aefff C:\WINDOWS\system32\ntdll.dll
    7c800000-7c8f5fff C:\WINDOWS\system32\kernel32.dll
    77dd0000-77e6afff C:\WINDOWS\system32\ADVAPI32.dll
    77e70000-77f01fff C:\WINDOWS\system32\RPCRT4.dll
    77fe0000-77ff0fff C:\WINDOWS\system32\Secur32.dll
    77c10000-77c67fff C:\WINDOWS\system32\MSVCRT.dll
    7c340000-7c395fff d:\tools\bea103\JROCKI~1\jre\bin\msvcr71.dll
    00420000-006c3fff *d:\tools\bea103\JROCKI~1\jre\bin\jrockit\jvm.dll
    76b40000-76b6cfff C:\WINDOWS\system32\WINMM.dll
    77f10000-77f58fff C:\WINDOWS\system32\GDI32.dll
    7e410000-7e4a0fff C:\WINDOWS\system32\USER32.dll
    71ab0000-71ac6fff C:\WINDOWS\system32\WS2_32.dll
    71aa0000-71aa7fff C:\WINDOWS\system32\WS2HELP.dll
    6d410000-6d438fff d:\tools\bea103\JROCKI~1\jre\bin\jdwp.dll
    6d770000-6d775fff d:\tools\bea103\JROCKI~1\jre\bin\npt.dll
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    6d3c0000-6d3defff d:\tools\bea103\JROCKI~1\jre\bin\java.dll
    6d320000-6d327fff d:\tools\bea103\JROCKI~1\jre\bin\hpi.dll
    6d860000-6d86efff D:\tools\bea103\jrockit_160_05\jre\bin\zip.dll
    6d290000-6d296fff d:\tools\bea103\JROCKI~1\jre\bin\dt_socket.dll
    71a50000-71a8efff C:\WINDOWS\system32\mswsock.dll
    662b0000-66307fff C:\WINDOWS\system32\hnetcfg.dll
    71a90000-71a97fff C:\WINDOWS\System32\wshtcpip.dll
    6d620000-6d632fff D:\tools\bea103\jrockit_160_05\jre\bin\net.dll
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    25c10000-25c27fff C:\WINDOWS\system32\MPRAPI.dll
    77cc0000-77cf1fff C:\WINDOWS\system32\ACTIVEDS.dll
    25c30000-25c54fff C:\WINDOWS\system32\adsldpc.dll
    76b20000-76b30fff C:\WINDOWS\system32\ATL.DLL
    774e0000-7761cfff C:\WINDOWS\system32\ole32.dll
    25c60000-25ceafff C:\WINDOWS\system32\OLEAUT32.dll
    25cf0000-25cfdfff C:\WINDOWS\system32\rtutils.dll
    71bf0000-71c02fff C:\WINDOWS\system32\SAMLIB.dll
    77920000-77a12fff C:\WINDOWS\system32\SETUPAPI.dll
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    6d800000-6d807fff D:\tools\bea103\jrockit_160_05\jre\bin\sunmscapi.dll
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    77b20000-77b31fff C:\WINDOWS\system32\MSASN1.dll
    76bf0000-76bfafff C:\WINDOWS\system32\psapi.dll
    6d7c0000-6d7c5fff D:\tools\bea103\jrockit_160_05\jre\bin\rmi.dll
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    ===== END DUMP ===============================================================

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    Regards,
    -Nader
    -server -mx1024m -verbose:gc -XX:MaxPermSize=128m -Xmanagement -classpath d:\bea\JROCKI~1\lib\tools.jar;d:\bea\WEBLOG~1\server\lib\weblogic_sp.jar;d:\bea\WEBLOG~1\server\lib\weblogic.jar;d:\bea\jdk142_04\jre\lib\rt.jar;d:\bea\WEBLOG~1\server\lib\webservices.jar -Dweblogic.RootDirectory=d:\bea\j2ee\domains\PERFD-RD2 -Dweblogic.Name=perfd-rpd2a -Dbea.home=d:\bea -Dweblogic.management.username=system -Dweblogic.management.password=weblogic -Dweblogic.management.server=http://10.198.39.237:7001 -Djava.security.policy=d:\bea\WEBLOG~1\server\lib\weblogic.policy -Dsun.net.inetaddr.ttl=0 weblogic.Server

  • Daylight Savings Time 2007 and Jrockit JVM 1.4.2_04

    If I have applications running on WLS 8.1 SP2 with Jrockit JVM 1.4.2_04 on AS3, would the NEW Energy act of 2007 which resets the DST in march insteadt of April affect my JVM? If yes is there a patch?

    This fix is included in JRockit release R27.1 1.4.2_12 publically available from the download site.
    Read more: http://java.sun.com/developer/technicalArticles/Intl/USDST/
    BEA JRockit ports and includes the JDK from the Sun Java distribution, so things fixed in a Sun JDK is fixed in the corresponding BEA JDK.
    Kind regards, Cecilia
    BEA JRockit
    Kind regards,
    Cecilia Borg
    BEA WebLogic JRockit

  • Determine the method optimizing which the Jrockit JVM crashed.

    I have an application that is running on Jrockit JVM. which crashed after 3-4 hours.
    From the jrockit.<pid>.dump I could determine that the crash was on the Thread: "(Code Optimization Thread 1) .
    And by using -XnoOpt we can stop code Optimization.
    However, how do we determine which exact method caused it so that i can use the option -XX:OptFile
    I am running Jrockit R28.0.1-21-133393-1.6.0_20-20100512-2126-linux-x86_64
    on RED HAT LINUX 5.3 (64 bit)
    Thread:
    "(Code Optimization Thread 1)" id=5 idx=0x54 tid=29997 lastJavaFrame=0xfffffffffffffffc
    Stack 0: start=0x41a70000, end=0x41ab2000, guards=0x41a75000 (ok), forbidden=0x41a73000
    Thread Stack Trace:
    at mspace_free+473(osal_mspace.c:4608)
    at irAliasValidate+1760(aliases.c:558)
    at irInfoGet+61(irinfo.c:143)
    at irAliasMustBeAliases+59(aliases.c:112)
    at update_callvector+4976(inline.c:284)

    Many bugs were reported for JVM crast at acGetOperand in JRockit R27.x
    But no bugs are reported exactly with the same stack trace.
    Regarding a workaround, the below stack is actually misleading us. It does not give us a clue about the reasons for the crash (whether it is happening due to concurrent GC or parallel GC or Compaction etc.), so we cannot really say what GC settings would avoid it.
    I recommend that we collect another textual dump if the crash occurs again and hope that the stack trace generated the next time will give us better insight into the root cause.
    Another suggestion would be to upgrade to R28.x

  • JRockit JVM Freezes on server start and WLST domain configuration

    Hi,
    Here is our configuration:
    OS:
    cat /etc/redhat-release
    Red Hat Enterprise Linux Server release 5.3 (Tikanga)
    uname -a
    Linux ********* 2.6.18-128.el5 #1 SMP Wed Dec 17 11:41:38 EST 2008 x86_64 x86_64 x86_64 GNU/Linux
    rpm -qa | grep glibc
    glibc-2.5-34
    glibc-common-2.5-34
    glibc-2.5-34
    We are using WLS 10.3 with 64 bit OS and 64 bit JRockit JVM on Xeon system.
    The JVM freezes for about 10m when I am trying to start the server. I also see the same behavior when I am trying to create the domain using WLST. Here is the thread dump during the freeze. The JVM eventually recovers from this and continues processing. During domain configuration, the freeze happens when it is trying to write the domain files to disk. All writes are happening to local disk.
    ===== FULL THREAD DUMP ===============
    Mon Apr 20 18:37:41 2009
    BEA JRockit(R) R27.6.0-50_o-100423-1.6.0_05-20080626-2104-linux-x86_64
    "Main Thread" id=1 idx=0x4 tid=30539 prio=5 alive, in native
    at jrockit/io/FileNativeIO.readBytesPinned(Ljava/io/FileDescriptor;[BII)I(Native Method)
        at jrockit/io/FileNativeIO.readBytes(FileNativeIO.java:46)
        at java/io/FileInputStream.readBytes([BII)I(FileInputStream.java)
        at java/io/FileInputStream.read(FileInputStream.java:199)
        at sun/security/provider/NativePRNG$RandomIO.readFully(NativePRNG.java:185)
        at sun/security/provider/NativePRNG$RandomIO.implGenerateSeed(NativePRNG.java:202)
        ^-- Holding lock: java/lang/Object@0x8577948[biased lock]
    at sun/security/provider/NativePRNG$RandomIO.access$300(NativePRNG.java:108)
    at sun/security/provider/NativePRNG.engineGenerateSeed(NativePRNG.java:102)
    at java/security/SecureRandom.generateSeed(SecureRandom.java:495)
    at com/bea/security/utils/random/AbstractRandomData.ensureInittedAndSeeded(AbstractRandomData.java:83)
    ^-- Holding lock: com/bea/security/utils/random/SecureRandomData@0x95f5db0[recursive]
    at com/bea/security/utils/random/AbstractRandomData.getRandomBytes(AbstractRandomData.java:97)
    ^-- Holding lock: com/bea/security/utils/random/SecureRandomData@0x95f5db0[biased lock]
    at com/bea/security/utils/random/AbstractRandomData.getRandomBytes(AbstractRandomData.java:92)
    at weblogic/security/Salt.getRandomBytes(Salt.java:18)
    at weblogic/security/internal/encryption/JSafeSecretKeyEncryptor.decryptSecretKey(JSafeSecretKeyEncryptor.java:108)
    at weblogic/security/internal/encryption/JSafeEncryptionServiceImpl.<init>(JSafeEncryptionServiceImpl.java:206)
    at weblogic/security/internal/encryption/JSafeEncryptionServiceFactory.getEncryptionService(JSafeEncryptionServiceFactory.java:23)
    at weblogic/security/internal/SerializedSystemIni.getEncryptionService(SerializedSystemIni.java:214)
    at weblogic/security/internal/SerializedSystemIni.getExistingEncryptionService(SerializedSystemIni.java:240)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    at jrockit/vm/Reflect.invokeMethod(Ljava/lang/Object;Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;(Native Method)
        at sun/reflect/NativeMethodAccessorImpl.invoke0(Ljava/lang/reflect/Method;Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;(Native Method)
        at sun/reflect/NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun/reflect/DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java/lang/reflect/Method.invoke(Method.java:597)
        at weblogic/descriptor/DescriptorManager$SecurityServiceImpl$SecurityProxy.<init>(DescriptorManager.java:149)
        at weblogic/descriptor/DescriptorManager$SecurityServiceImpl$SecurityProxy.instance(DescriptorManager.java:137)
        at weblogic/descriptor/DescriptorManager$SecurityServiceImpl.isEncrypted(DescriptorManager.java:108)
        at weblogic/descriptor/internal/AbstractDescriptorBean._isEncrypted(AbstractDescriptorBean.java:968)
        at weblogic/management/configuration/SecurityConfigurationMBeanImpl.setCredentialEncrypted(SecurityConfigurationMBeanImpl.java:1557)
        at weblogic/management/configuration/SecurityConfigurationMBeanImpl.setCredentialEncryptedAsString(SecurityConfigurationMBeanImpl.java:781)
        at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
        at jrockit/vm/Reflect.invokeMethod(Ljava/lang/Object;Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;(Native Method)
        at sun/reflect/NativeMethodAccessorImpl.invoke0(Ljava/lang/reflect/Method;Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;(Native Method)
        at sun/reflect/NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun/reflect/DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java/lang/reflect/Method.invoke(Method.java:597)
        at com/bea/staxb/runtime/internal/util/ReflectionUtils.invokeMethod(ReflectionUtils.java:48)
        at com/bea/staxb/runtime/internal/RuntimeBindingType$BeanRuntimeProperty.setValue(RuntimeBindingType.java:531)
        at com/bea/staxb/runtime/internal/MultiIntermediary.setValue(MultiIntermediary.java:80)
        at com/bea/staxb/runtime/internal/ByNameRuntimeBindingType$ElementQNameProperty.fill(ByNameRuntimeBindingType.java:348)
        at com/bea/staxb/runtime/internal/LiteralUnmarshalResult.extractAndFillElementProp(LiteralUnmarshalResult.java:139)
        at com/bea/staxb/runtime/internal/ByNameUnmarshaller.deserializeContents(ByNameUnmarshaller.java:51)
        at com/bea/staxb/runtime/internal/AttributeUnmarshaller.unmarshalIntoIntermediary(AttributeUnmarshaller.java:47)
        at com/bea/staxb/runtime/internal/LiteralUnmarshalResult.unmarshalElementProperty(LiteralUnmarshalResult.java:164)
        at com/bea/staxb/runtime/internal/LiteralUnmarshalResult.extractAndFillElementProp(LiteralUnmarshalResult.java:136)
        at com/bea/staxb/runtime/internal/ByNameUnmarshaller.deserializeContents(ByNameUnmarshaller.java:51)
        at com/bea/staxb/runtime/internal/AttributeUnmarshaller.unmarshalIntoIntermediary(AttributeUnmarshaller.java:47)
        at com/bea/staxb/runtime/internal/UnmarshalResult.unmarshalBindingType(UnmarshalResult.java:189)
        at com/bea/staxb/runtime/internal/UnmarshalResult.unmarshalDocument(UnmarshalResult.java:159)
        at com/bea/staxb/runtime/internal/UnmarshallerImpl.unmarshal(UnmarshallerImpl.java:65)
        at weblogic/descriptor/internal/MarshallerFactory$1.createDescriptor(MarshallerFactory.java:95)
        at weblogic/descriptor/BasicDescriptorManager.createDescriptor(BasicDescriptorManager.java:240)
        at weblogic/management/provider/internal/DescriptorManagerHelper.loadDescriptor(DescriptorManagerHelper.java:63)
        at weblogic/management/provider/internal/RuntimeAccessImpl$IOHelperImpl.parseXML(RuntimeAccessImpl.java:683)
        at weblogic/management/provider/internal/RuntimeAccessImpl.parseNewStyleConfig(RuntimeAccessImpl.java:268)
        at weblogic/management/provider/internal/RuntimeAccessImpl.<init>(RuntimeAccessImpl.java:115)
        at weblogic/management/provider/internal/RuntimeAccessService.start(RuntimeAccessService.java:39)
        at weblogic/t3/srvr/ServerServicesManager.startService(ServerServicesManager.java:459)
        at weblogic/t3/srvr/ServerServicesManager.startInStandbyState(ServerServicesManager.java:164)
        ^-- Holding lock: java/lang/Class@0x939df30[biased lock]
    at weblogic/t3/srvr/T3Srvr.initializeStandby(T3Srvr.java:711)
    at weblogic/t3/srvr/T3Srvr.startup(T3Srvr.java:482)
    at weblogic/t3/srvr/T3Srvr.run(T3Srvr.java:440)
    at weblogic/Server.main(Server.java:67)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace
    <<Truncated for brevity>>
    ===== END OF THREAD DUMP ===============
    The same process works fine on a VM with the same OS. Any ideas what might be going on?
    Thanks,
    Chengi

    This does not look familiar to me. Download R27.6.3 and see if that works things out: http://www.oracle.com/technology/software/products/jrockit/index.html. If that does not help, I recommend you to report the issue to JRockit support (see how to below).
    Best Regards,
    Tuva
    JRockit PM
    How to report to JRockit support:
    You must register and file the issue on Metalink, http://metalink.oracle.com. Note that you must have purchased support to continue.
    If you have problems during the registration or filing you can call our support +1.800.223.1711* or 1-800-633-0738 directly.
    In case you have not purchased support call 1.800.833.3536* for support sales.
    More information on our support site: http://www.oracle.com/support/index.html.
    *) US numbers - for global technical support contacts see: http://www.oracle.com/support/contact.html

  • Jrockit JVM GC issue - weblogic performance and crashes at times

    On enabling the verbose gc for memory debug, we have observer the following and we frequently face a JVM issue i.e JVM will be unresponsive due to GC pause and on checking we found the following in GC log.
    [memdbg ][Tue Jul 13 01:02:12 2010][26381] GC reason: TLA allocation failed, cause: Get TLA From Nursery
    [memdbg ][Tue Jul 13 01:02:12 2010][26381] Stopping of javathreads took 2.234 ms
    As of now the following is the TLA size:-
    [memdbg ][Tue Jul 13 01:00:10 2010][26381] Minimum TLA size is 2048 bytes
    [memdbg ][Tue Jul 13 01:00:10 2010][26381] Preferred TLA size is 65536 bytes
    [memdbg ][Tue Jul 13 01:00:10 2010][26381] Large object limit is 2048 bytes
    After consultaion with oracle support team, they have asked to us increase the TLA size and we did as follows but we still see the same message.
    tried setting
    -XXlargeObjectLimit:16k -XXminBlockSize:16k -XXtlaSize:min=16k,preferred=32k
    it was still a problem, tried
    -XXlargeObjectLimit:32k -XXminBlockSize:32k -XXtlaSize:min=32k,preferred=64k
    and we sill the following message.
    [memdbg ][Wed Jul 21 03:14:06 2010][11864] f0 3.75Gb
    [memdbg ][Wed Jul 21 03:14:06 2010][11864] Minimum TLA size is 16384 bytes
    [memdbg ][Wed Jul 21 03:14:06 2010][11864] Preferred TLA size is 32768 bytes
    [memdbg ][Wed Jul 21 03:14:06 2010][11864] Large object limit is 16384 bytes
    [memdbg ][Wed Jul 21 03:14:06 2010][11864] Minimal blocksize on the freelist is 16384 bytes
    [memdbg ][Wed Jul 21 03:14:06 2010][11864] Initial and maximum number of gc threads: 8, of which 8 parallel threads, 4 concurrent threads, and 8 yc threads.
    [memdbg ][Wed Jul 21 03:14:06 2010][11864] Preferred free list cache percentage 10%.
    [memdbg ][Wed Jul 21 03:14:06 2010][11864] Maximum nursery percentage of free heap is: 95.
    [nursery][Wed Jul 21 03:14:06 2010][11864] Optimal nursery size: 536870912, free heap: 1073741824
    [nursery][Wed Jul 21 03:14:06 2010][11864] Setting mmNurseryMarker[0] to 0x12affff8
    [nursery][Wed Jul 21 03:14:06 2010][11864] Setting mmNurseryMarker[1] to 0x1aaffff0
    [nursery][Wed Jul 21 03:14:06 2010][11864] Nursery size increased from 0kb to 524288kb. Parts: 1
    [memdbg ][Wed Jul 21 03:14:06 2010][11864] Prefetch distance in balanced tree: 4
    [compact][Wed Jul 21 03:14:06 2010][11864] Compactset limit: 7600010, Using matrixes: 0, Static: 0
    [memory ][Wed Jul 21 03:14:06 2010][11864] GC mode: Garbage collection optimized for throughput, initial strategy: Generational Parallel Mark & Sweep
    [memory ][Wed Jul 21 03:14:06 2010][11864] heap size: 1048576K, maximal heap size: 1048576K, nursery size: 524288K
    [memory ][Wed Jul 21 03:14:06 2010][11864] <s>-<end>: GC <before>K-><after>K (<heap>K), <pause> ms
    [memory ][Wed Jul 21 03:14:06 2010][11864] <s/start> - start time of collection (seconds since jvm start)
    [memory ][Wed Jul 21 03:14:06 2010][11864] <end> - end time of collection (seconds since jvm start)
    [memory ][Wed Jul 21 03:14:06 2010][11864] <before> - memory used by objects before collection (KB)
    [memory ][Wed Jul 21 03:14:06 2010][11864] <after> - memory used by objects after collection (KB)
    [memory ][Wed Jul 21 03:14:06 2010][11864] <heap> - size of heap after collection (KB)
    [memory ][Wed Jul 21 03:14:06 2010][11864] <pause> - total sum of pauses during collection (milliseconds)
    [memory ][Wed Jul 21 03:14:06 2010][11864] run with -Xverbose:gcpause to see individual pauses
    [memdbg ][Wed Jul 21 03:14:39 2010][11864] GC reason: TLA allocation failed, cause: Get TLA From Nursery
    [memdbg ][Wed Jul 21 03:14:39 2010][11864] Stopping of javathreads took 1.627 ms
    [nursery][Wed Jul 21 03:14:39 2010][11864] KeepAreaStart: 0x1aaffff0 KeepAreaEnd: 0x22b00000
    [nursery][Wed Jul 21 03:14:39 2010][11864] Young collection 1 started. This YC is running while the OC is in phase: not running.
    [memdbg ][Wed Jul 21 03:14:39 2010][11864] A pinned object was found: 0x11a4d4a0
    [memdbg ][Wed Jul 21 03:14:39 2010][11864] A pinned object was found: 0x11a30010
    [nursery][Wed Jul 21 03:14:39 2010][11864] Found pinned object: 0x11a4d4a0 - 0x11a4f4b0
    Are there any standard tuning recommendations for Jrockit JVM to come over this GC issue? At present, we are using following JAVA options.
    -XXlargeObjectLimit:32k -XXminBlockSize:32k -XXtlaSize:min=32k,preferred=64k -verbose:gc -Xverboselog:/tmp/gc.log -Xverbose:memory,gcpause,memdbg,compaction,gc -Xverbosetimestamp -Xgcreport
    -RR
    Regards
    Ranga

    If you want to optimize for pausetime, you can use for example
    -Xms512m -Xmx512m -Xns256m -XXkeepAreaRatio:25 -Xgcprio:pausetime -XpauseTarget:200msThe parameters xms and xmx can be adjusted to your wishes.

  • JMAPI - How to get a handle on a Remote JRockit JVM

    Using the JVMFactory.getJVM() returns the handle to the current instance of the
    JVM in which this code executes.
    How do i get a handle to a remote JVM executing on a different host? I.E i am
    looking for the API that the Jrockit Console uses to connect to the Management
    server on a remote JRockit JVM.

    There is no such API. The JRockit console has two parts - one resides in
    the JVM you are managing and get the data from JRockit, the data is then
    sent over the wire to the the other part (the console itself). The wire
    protocol in this case is proprietary, but you could implement something
    like it yourself.
    Regards,
    /Staffan
    Code Warrior wrote:
    Using the JVMFactory.getJVM() returns the handle to the current instance of the
    JVM in which this code executes.
    How do i get a handle to a remote JVM executing on a different host? I.E i am
    looking for the API that the Jrockit Console uses to connect to the Management
    server on a remote JRockit JVM.

  • BEA JRockit JVM?

    Does anyone here (other than me) use JRockit JVM too? I found it's 1.5x faster to start JBoss but very slow for swing apps... I'm not sure if I should switch to it now, please give me suggestions/comments!

    Seems pretty obvious - if, in your experience, it's slower for Swing apps, and you mainly use Swing apps, then don't touch it!
    Perhaps it's a matter of picking the right tool for the job. JRockit may be better for j2ee systems, in which case utilise its strengths. For Swing apps, just use the standard jvm from Sun.

  • JRockit JVM Crashed with the following dump

    I am using JRockit VM as the JVM for the Integrated Weblogic Server with JDeveloper. I got this dump, when I was debugging my application. Just thought of sharing it here.
    [JRockit] ERROR: The JVM has crashed. Writing crash information to /scratch/xxxxxxxx/view_storage/xxxxxxxx_fixcommit/.jdev_user_home/system11.1.1.5.37.59.86/DefaultDomain/jrockit.18628.dump.
    ===== BEGIN DUMP =============================================================
    JRockit dump produced after 0 days, 00:46:27 on Sat Aug 20 19:49:11 2011
    * If you see this dump, please go to *
    * http://download.oracle.com/docs/cd/E15289_01/go2troubleshooting.html *
    * for troubleshooting information. *
    Additional information is available in:
    /scratch/xxxxxxxx/view_storage/xxxxxxxx_fixcommit/.jdev_user_home/system11.1.1.5.37.59.86/DefaultDomain/jrockit.18628.dump
    No snapshot file (core dump) will be created because core dumps have been
    disabled. To enable core dumping, try "ulimit -c unlimited"
    before starting JRockit again.
    Error Message: Illegal memory access. [54]
    Signal info : si_signo=11, si_code=1 si_addr=0x13
    Version : Oracle JRockit(R) R28.1.3-11-141760-1.6.0_24-20110301-1432-linux-x86_64
    CPU : Intel Core 2 SSE SSE2 SSE3 SSSE3 SSE4.1 Core Intel64
    Number CPUs : 2
    Tot Phys Mem : 3978702848 (3794 MB)
    OS version : Red Hat Enterprise Linux Server release 5.4 (Tikanga)
    Linux version 2.6.18-164.0.0.0.1.el5 ([email protected]) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-46)) #1 SMP Thu Sep 3 00:21:28 EDT 2009 (x86_64)
    Thread System: Linux NPTL
    LibC release : 2.5-stable
    Java locking : Normal
    State : JVM is running
    Command Line : -Xms256M -Xmx1536M -Dweblogic.Name=DefaultServer -Djava.security.policy=/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/wlserver_10.3/server/lib/weblogic.policy -agentlib:jdwp=transport=dt_socket,server=y,address=8986 -Djavax.net.ssl.trustStore=/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/wlserver_10.3/server/lib/DemoTrust.jks -Doracle.adfm.usemds=true -DAFLOG_ECHOED=Y -DAFLOG_ECHOED_PATTERN="[%t][%c][%m][%x]" -DAFLOG_ENABLED=Y -DAFLOG_LEVEL=FINEST -DAFLOG_MODULE=oracle.apps.projects.% -Djbo.debugoutput=silent -Djbo.jdbc.trace=false -Djbo.logging.trace.threshold=1 -Dweblogic.nodemanager.ServiceEnabled=true -Xverify:none -da -Dplatform.home=/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/wlserver_10.3 -Dwls.home=/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/wlserver_10.3/server -Dweblogic.home=/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/wlserver_10.3/server -Djps.app.credential.overwrite.allowed=true -Dcommon.components.home=/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/oracle_common -Djrf.version=11.1.1 -Dorg.apache.commons.logging.Log=org.apache.commons.logging.impl.Jdk14Logger -Ddomain.home=/scratch/xxxxxxxx/view_storage/xxxxxxxx_fixcommit/.jdev_user_home/system11.1.1.5.37.59.86/DefaultDomain -Djrockit.optfile=/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/oracle_common/modules/oracle.jrf_11.1.1/jrocket_optfile.txt -Doracle.server.config.dir=/scratch/xxxxxxxx/view_storage/xxxxxxxx_fixcommit/.jdev_user_home/system11.1.1.5.37.59.86/DefaultDomain/config/fmwconfig/servers/DefaultServer -Doracle.domain.config.dir=/scratch/xxxxxxxx/view_storage/xxxxxxxx_fixcommit/.jdev_user_home/system11.1.1.5.37.59.86/DefaultDomain/config/fmwconfig -Djava.util.logging.manager=oracle.core.ojdl.logging.ODLLogManager -Digf.arisidbeans.carmlloc=/scratch/xxxxxxxx/view_storage/xxxxxxxx_fixcommit/.jdev_user_home/system11.1.1.5.37.59.86/DefaultDomain/config/fmwconfig/carml -Digf.arisidstack.home=/scratch/xxxxxxxx/view_storage/xxxxxxxx_fixcommit/.jdev_user_home/system11.1.1.5.37.59.86/DefaultDomain/config/fmwconfig/arisidprovider -Doracle.security.jps.config=/scratch/xxxxxxxx/view_storage/xxxxxxxx_fixcommit/.jdev_user_home/system11.1.1.5.37.59.86/DefaultDomain/config/fmwconfig/jps-config.xml -Doracle.deployed.app.dir=/scratch/xxxxxxxx/view_storage/xxxxxxxx_fixcommit/.jdev_user_home/system11.1.1.5.37.59.86/DefaultDomain/servers/DefaultServer/tmp/_WL_user -Doracle.deployed.app.ext=/- -Dweblogic.alternateTypesDirectory=/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/oracle_common/modules/oracle.ossoiap_11.1.1,/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/oracle_common/modules/oracle.oamprovider_11.1.1 -Djava.protocol.handler.pkgs=oracle.mds.net.protocol -Dweblogic.jdbc.remoteEnabled=false -Dwsm.repository.path=/scratch/xxxxxxxx/view_storage/xxxxxxxx_fixcommit/.jdev_user_home/system11.1.1.5.37.59.86/DefaultDomain/oracle/store/gmds -Datgpf.oracle.home=/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/jdeveloper -Doracle.fusion.appsMode=true -DUSE_JAAS=false -Djps.policystore.hybrid.mode=false -Djps.combiner.optimize.lazyeval=true -Djps.combiner.optimize=true -Djps.auth=ACC -Doracle.core.ojdl.logging.usercontextprovider=oracle.core.ojdl.logging.impl.UserContextImpl -Xverify:none -Doracle.webcenter.analytics.disable-native-partitioning=false -Doracle.webcenter.tagging.scopeTags=false -Doracle.webcenter.framework.service.LOAD_FROM_MDS=true -Doracle.webcenter.framework.resource.authorizerClass.oracle.webcenter.page=oracle.webcenter.spaces.internal.model.GroupSpacePageResourceAuthorizer -Djrockit.codegen.newlockmatching=true -Dwc.oracle.home=/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/jdeveloper -Dportlet.oracle.home=/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/jdeveloper -Dweblogic.ejb.container.MDBDestinationPollIntervalMillis=30000 -Dweblogic.mdb.message.MinimizeAQSessions=true -Doracle.jdbc.createDescriptorUseCurrentSchemaForSchemaName=true -Djbo.ampool.minavailablesize=0 -Djbo.recyclethreshold=25 -Dbip.client.config.dir=/home/xxxxxxxx/XMLPClientConfigDir -Dweblogic.SocketReaders=3 -Djava.awt.headless=true -Dweblogic.transaction.blocking.commit=true -Dweblogic.transaction.blocking.rollback=true -Doracle.ecsf.crawl.mode.debug=true -Doracle.ecsf.applcore.session.enabled=true -DLWSSESSIONCONTEXT=oracle.apps.fnd.applcore.common.ApplSessionManagement -Dlog4j.debug=true -Djps.app.credential.overwrite.allowed=true -Dodi.oracle.home=/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/jdeveloper -Dess.oracle.home=/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/jdeveloper -Dweblogic.management.discover=true -Dwlw.iterativeDev= -Dwlw.testConsole= -Dwlw.logErrorsToConsole= -Dweblogic.ext.dirs=/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/patch_wls1035/profiles/default/sysext_manifest_classpath:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/patch_jdev1111/profiles/default/sysext_manifest_classpath -Dsun.java.launcher=SUN_STANDARD weblogic.Server
    Repository : /tmp/2011_08_20_19_02_53_18628
    java.home : /scratch/software/bea/jrockit/jre
    j.class.path : /scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/oracle_common/modules/oracle.jdbc_11.1.1/ojdbc6dms.jar:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/patch_wls1035/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/patch_jdev1111/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/scratch/software/bea/jrockit/lib/tools.jar:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/wlserver_10.3/server/lib/weblogic_sp.jar:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/wlserver_10.3/server/lib/weblogic.jar:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/modules/features/weblogic.server.modules_10.3.5.0.jar:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/wlserver_10.3/server/lib/webservices.jar:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/modules/org.apache.ant_1.7.1/lib/ant-all.jar:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/modules/net.sf.antcontrib_1.1.0.0_1-0b2/lib/ant-contrib.jar:/scratch/xxxxxxxx/view_storage/xxxxxxxx_fixcommit/.jdev_user_home/system11.1.1.5.37.59.86/DefaultDomain/wcps-lib/derby-10.6.1.0.jar:/scratch/xxxxxxxx/view_storage/xxxxxxxx_fixcommit/.jdev_user_home/system11.1.1.5.37.59.86/DefaultDomain/wcps-lib/derbytools-10.6.1.0.jar:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/jdeveloper/modules/oracle.ess_11.1.1/ess-sec.jar:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/jdeveloper/webcenter/modules/oracle.portlet.server_11.1.1/oracle-portlet-api.jar:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/oracle_common/modules/oracle.jrf_11.1.1/jrf.jar:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/jdeveloper/webcenter/modules/wcps_11.1.1.4.0/wcps-connection-mbeans.jar:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/wlserver_10.3/common/derby/lib/derbyclient.jar:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/wlserver_10.3/server/lib/xqrl.jar
    j.lib.path : /scratch/software/bea/jrockit/jre/lib/amd64/jrockit:/scratch/software/bea/jrockit/jre/lib/amd64:/scratch/software/bea/jrockit/jre/../lib/amd64:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/patch_wls1035/profiles/default/native:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/patch_jdev1111/profiles/default/native:/ade_autofs/ade_fusion_linux/JDK6_MAIN_LINUX.rdd/090126.6.11.FCS.B03/jdk6/jre/lib/i386/server:/ade_autofs/ade_fusion_linux/JDK6_MAIN_LINUX.rdd/090126.6.11.FCS.B03/jdk6/jre/lib/i386:/ade_autofs/ade_fusion_linux/JDK6_MAIN_LINUX.rdd/090126.6.11.FCS.B03/jdk6/jre/../lib/i386:/usr/lib:/ade/xxxxxxxx_fixcommit/dmsc/lib:/ade/xxxxxxxx_fixcommit/ldap/bin:/ade/xxxxxxxx_fixcommit/oracle/lib:/ade/xxxxxxxx_fixcommit/atgpf/lib/linuxx64:/ade/xxxxxxxx_fixcommit/fusionapps/lib/linuxx64:/ade/xxxxxxxx_fixcommit/fusionapps/hcm/pyt/lib/linuxx64:/ade/xxxxxxxx_fixcommit/bishiphome/dist/clients/epm/Essbase/EssbaseRTC/bin:/ade/xxxxxxxx_fixcommit/opmn/lib:/ade/xxxxxxxx_fixcommit/fatp/linuxx64/demantra/bin:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/wlserver_10.3/server/native/linux/i686:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/wlserver_10.3/server/native/linux/i686/oci920_8
    JAVA_HOME : /scratch/software/bea/jrockit
    JAVAOPTIONS: <not set>
    LD_LIBRARY_PATH: /scratch/software/bea/jrockit/jre/lib/amd64/jrockit:/scratch/software/bea/jrockit/jre/lib/amd64:/scratch/software/bea/jrockit/jre/../lib/amd64:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/patch_wls1035/profiles/default/native:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/patch_jdev1111/profiles/default/native:/ade_autofs/ade_fusion_linux/JDK6_MAIN_LINUX.rdd/090126.6.11.FCS.B03/jdk6/jre/lib/i386/server:/ade_autofs/ade_fusion_linux/JDK6_MAIN_LINUX.rdd/090126.6.11.FCS.B03/jdk6/jre/lib/i386:/ade_autofs/ade_fusion_linux/JDK6_MAIN_LINUX.rdd/090126.6.11.FCS.B03/jdk6/jre/../lib/i386:/usr/lib:/ade/xxxxxxxx_fixcommit/dmsc/lib:/ade/xxxxxxxx_fixcommit/ldap/bin:/ade/xxxxxxxx_fixcommit/oracle/lib:/ade/xxxxxxxx_fixcommit/atgpf/lib/linuxx64:/ade/xxxxxxxx_fixcommit/fusionapps/lib/linuxx64:/ade/xxxxxxxx_fixcommit/fusionapps/hcm/pyt/lib/linuxx64:/ade/xxxxxxxx_fixcommit/bishiphome/dist/clients/epm/Essbase/EssbaseRTC/bin:/ade/xxxxxxxx_fixcommit/opmn/lib:/ade/xxxxxxxx_fixcommit/fatp/linuxx64/demantra/bin:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/wlserver_10.3/server/native/linux/i686:/scratch/software/mw_local/FMWTOOLS_11.1.1.5.0_GENERIC_110330.1115/xxxxxxxx/mw_home/wlserver_10.3/server/native/linux/i686/oci920_8
    LD_ASSUME_KERNEL: <not set>
    LD_PRELOAD : <not set>
    StackOverFlow: 0 StackOverFlowErrors have occured
    OutOfMemory : 0 OutOfMemoryErrors have occured
    C Heap : Good; no memory allocations have failed
    GC Strategy : Mode: throughput, with strategy: genparpar (basic strategy: genparpar)
    GC Status : OC is not running. Last finished OC was OC#18.
    : YC is not running. Last finished YC was YC#150.
    YC Promotion : Last YC successfully promoted all objects
    YC History : Ran 7 YCs before OC#14.
    : Ran 3 YCs before OC#15.
    : Ran 26 YCs before OC#16.
    : Ran 9 YCs before OC#17.
    : Ran 18 YCs before OC#18.
    : Ran 9 YCs since last OC.
    Heap : 0xa0000000 - 0xbf417000 (Size: 500 MB)
    Heap History : OC#7 - 0xb0000000 (256 MB -> 303 MB; +47856 KB)
    : OC#11 - 0xb2ebc000 (303 MB -> 343 MB; +41060 KB)
    : OC#12 - 0xb56d5000 (343 MB -> 393 MB; +51672 KB)
    : OC#15 - 0xb894b000 (393 MB -> 443 MB; +50700 KB)
    : OC#16 - 0xbbace000 (443 MB -> 500 MB; +58660 KB)
    Compaction : (no compaction area)
    Allocation : TLA-min: 2048, TLA-preferred: 65536 TLA-waste limit: 2048
    NurseryList : 0xa1ac4930 - 0xb2659cf8
    KeepArea : 0xad7221e8 - 0xaea1a448
    KA Markers : [ 0xad7221e8,  0xaea1a448 , 0xb2659cf8 ]
    Forbidden A : (none)
    Previous KA : 0xaea1a448 - 0xb2659cf8
    Previous FA : (none)
    CompRefs : References are compressed, with heap base 0x0 and shift 0.
    Registers (from ThreadContext: 0x40ee7820:
    rax = 0000000000000000 rcx = 74752f6176616a4c
    rdx = 0000000040ee7d60 rbx = 0000000000000000
    rsp = 0000000040ee7c60 rbp = 0000000040ee7c90
    rsi = 0000000000000001 rdi = 000000000d0b37e0
    r8 = 003b7465532f6c69 r9 = 0000000000000001
    r10 = 0000000000000000 r11 = 0000000000000001
    r12 = 0000000000000001 r13 = 0000000040ee7d58
    r14 = 0000000040ee7d60 r15 = 000000000db4d368
    cs = 0000000000000033 fs = 0000000400000000
    gs = 0004000000000000
    rip = 00002ad027bc7a63 flags = 0000000000000202
    Loaded modules:
    (* denotes the module where the exception occured)
    0000000000400000-0000000000412703 /scratch/software/bea/jrockit/bin/java
    000000379b800000-000000379b801f93 /lib64/libdl.so.2
    000000379c000000-000000379c0156ff /lib64/libpthread.so.0
    000000379b400000-000000379b54ced7 /lib64/libc.so.6
    000000379a400000-000000379a41bb3f /lib64/ld-linux-x86-64.so.2
    00002ad027a60000-00002ad027d65343 */scratch/software/bea/jrockit/jre/lib/amd64/jrockit/libjvm.so
    00002ad02803f000-00002ad02805d9eb /scratch/software/bea/jrockit/jre/lib/amd64/libosal.so
    00002ad028260000-00002ad02826c4fb /scratch/software/bea/jrockit/jre/lib/amd64/libutil.so
    000000379bc00000-000000379bc8122f /lib64/libm.so.6
    000000379f400000-000000379f406e8b /lib64/librt.so.1
    00002aaaaac00000-00002aaaaac35c17 /scratch/software/bea/jrockit/jre/lib/amd64/libjdwp.so
    00002aaaaad3f000-00002aaaaad41307 /scratch/software/bea/jrockit/jre/lib/amd64/libnpt.so
    00002aaaaae49000-00002aaaaae54d03 /scratch/software/bea/jrockit/jre/lib/amd64/libjfr.so
    00002aaaee50b000-00002aaaee517337 /scratch/software/bea/jrockit/jre/lib/amd64/libverify.so
    00002aaaee61a000-00002aaaee64219b /scratch/software/bea/jrockit/jre/lib/amd64/libjava.so
    00000037a2000000-00000037a20140c7 /lib64/libnsl.so.1
    00002aaaee789000-00002aaaee78f5bf /scratch/software/bea/jrockit/jre/lib/amd64/native_threads/libhpi.so
    00002aaaee954000-00002aaaee961bc3 /scratch/software/bea/jrockit/jre/lib/amd64/libzip.so
    00002aaaeeb28000-00002aaaeeb2ae73 /scratch/software/bea/jrockit/jre/lib/amd64/libdt_socket.so
    00002aaaeec7b000-00002aaaeec8464b /lib64/libnss_files.so.2
    00002aaaef086000-00002aaaef098d1f /scratch/software/bea/jrockit/jre/lib/amd64/libnet.so
    00002aaaef652000-00002aaaef657f43 /scratch/software/bea/jrockit/jre/lib/amd64/liborii.so
    00002aaaef919000-00002aaaef91f97b /scratch/software/bea/jrockit/jre/lib/amd64/libnio.so
    00002aaaf4840000-00002aaaf484547b /scratch/software/bea/jrockit/jre/lib/amd64/libmanagement.so
    00002aaaf740f000-00002aaaf7418bbb /scratch/software/bea/jrockit/jre/lib/amd64/libjmapi.so
    00002aab02cbe000-00002aab02cbe8bb /scratch/software/bea/jrockit/jre/lib/amd64/librmi.so
    00002aab05c3e000-00002aab05ccf86b /scratch/software/bea/jrockit/jre/lib/amd64/libawt.so
    00002aab05e0d000-00002aab05e1199f /scratch/software/bea/jrockit/jre/lib/amd64/headless/libmawt.so
    00002aab09453000-00002aab094cb21f /scratch/software/bea/jrockit/jre/lib/amd64/libfontmanager.so
    Stack:
    (* marks the word pointed to by the stack pointer)
    0000000040ee7c60: 000000000d133ac0* 00002aaaf31531d0 0000000000000000 0000000040ee7d50
    0000000040ee7c80: 0000000040ee7d58 000000000d0b37e0 0000000040ee7cd0 00002ad027bb10bf
    0000000040ee7ca0: 0000000000000001 0000000000000064 000000000dd11ed0 000000000d0b37e0
    0000000040ee7cc0: 0000000040ee7d60 0000000040ee7d58 0000000040ee7d40 00002ad027bb2404
    0000000040ee7ce0: 0000000040ee7d60 000000000dd11ed0 0000000040ee7d50 00002aab08b2ea20
    0000000040ee7d00: 0000000012469d70 00002aab08b2ea20 00002aab08b25a38 00002aaaaad360f0
    Code:
    (* marks the word pointed to by the instruction pointer)
    00002ad027bc7a00: 00401f0fd7ebed31 480010b89f058d4c 8d48001249050d8d 3d8d48001025bb35
    00002ad027bc7a20: 000018ba001024f1 ffed6d18e8c03100 2e66666666669eeb 0000000000841f0f
    00002ad027bc7a40: e865894ce5894855 48f48949f875894c 48f06d894ce05d89 8949f6854830ec83
    00002ad027bc7a60: 481246b70f4d74d6* 4c01688d4cd8558d 85fffffd99e8ee89 7d8b481775c389c0
    00002ad027bc7a80: ea894c24348b49d8 458b48ffed793be8 8b4cd889068949d8 8b4ce05d8b48e865
    00002ad027bc7aa0: c3c9f8758b4cf06d 0000000000841f0f 89fffffea9e8f631 0000441f0fd9ebc3
    Last optimized methods:
    No methods optimized.
    Thread:
    "JDWP Transport Listener: dt_soc" id=10 idx=0x30 tid=18640 lastJavaFrame=0xfffffffffffffffc
    Stack 0: start=0x40ea7000, end=0x40ee9000, guards=0x40eac000 (ok), forbidden=0x40eaa000
    Thread Stack Trace:
    at jvmtiIStrdup+35(jvmtimemory.c:111)@0x2ad027bc7a63
    at get_name_and_signatures+110(jvmticlass.c:931)@0x2ad027bb10bf
    at jvmti_GetFieldName+611(jvmticlass.c:283)@0x2ad027bb2404
    at fieldSignature+108()@0x2aaaaac27bdd
    -- Java stack --
    Memory usage report:
    Total mapped 3530424KB (reserved=2192956KB)
    - Java heap 1572864KB (reserved=1060772KB)
    - GC tables 52620KB
    - Thread stacks 32156KB (#threads=84)
    - Compiled code 1048576KB (used=37710KB)
    - Internal 1416KB
    - OS 298768KB
    - Other 192248KB
    - Classblocks 18688KB (malloced=18313KB #46446)
    Not tracing sites.
    - Java class data 312064KB (malloced=310392KB #215032 in 46446 classes)
    Not tracing sites.
    - Native memory tracking 1024KB (malloced=153KB #10)
    Not tracing sites.
    Set the env variable TRACE_ALLOC_SITES=1 or use the print_memusage switch
    trace_alloc_sites=true to enable alloc site tracing.
    * If you see this dump, please go to *
    * http://download.oracle.com/docs/cd/E15289_01/go2troubleshooting.html *
    * for troubleshooting information. *
    ===== END DUMP ===============================================================
    /scratch/xxxxxxxx/view_storage/xxxxxxxx_fixcommit/.jdev_user_home/system11.1.1.5.37.59.86/DefaultDomain/bin/startWebLogic.sh: line 180: 18628 Aborted ${JAVA_HOME}/bin/java ${JAVA_VM} ${MEM_ARGS} -Dweblogic.Name=${SERVER_NAME} -Djava.security.policy=${WL_HOME}/server/lib/weblogic.policy ${JAVA_OPTIONS} ${PROXY_SETTINGS} ${SERVER_CLASS}
    Debugger connection to debuggee process has been lost.
    [Server Instance IntegratedWebLogicServer is shutting down.  All applications currently running will be terminated and undeployed.]

    Hi DH,
    This is a known issue to the engineering team and a future release will include a fix for this. Unfortunately, at this point there is no work around available.
    I will recommend that you keep an eye on our release notes page to get more updates on it - Release notes | Adobe Muse CC
    - Abhishek Maurya

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  • Lots of exceptions thrown with JRockit JVM

    Hi,
    We are switching to test our codes based on JRockitRealTime 3.0.0, 1.6, linux 64 from Sun HotSpot.
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    We notice a quite a few things are significant slower when compared to the results based on HotSpot.
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    at jrockit/vm/Reflect.fillInStackTrace0(Ljava/lang/Throwable;)V(Native Method)^M
    at java/lang/Throwable.fillInStackTrace()Ljava/lang/Throwable;(Native Method)^M
    at java/lang/Throwable.<init>(Throwable.java:196)^M
    at java/lang/Exception.<init>(Exception.java:41)^M
    at java/lang/NoSuchMethodException.<init>(NoSuchMethodException.java:32)^M
    at java/lang/Class.getMethod(Class.java:1605)^M
    at com/tangosol/run/xml/PropertyAdapter.<init>(PropertyAdapter.java:152)^M
    at com/tangosol/run/xml/SimpleAdapter.<init>(SimpleAdapter.java:59)^M
    at com/tangosol/run/xml/SimpleAdapter$StringAdapter.<init>(SimpleAdapter.java:1415)^M
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)^M
    at jrockit/vm/Reflect.invokeMethod(Ljava/lang/Object;Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;(Native Method)^M
    at sun/reflect/NativeConstructorAccessorImpl.newInstance0(Ljava/lang/reflect/Constructor;[Ljava/lang/Object;)Ljava/lang/Object;(Native Method)^M
    at sun/reflect/NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)^M
    at sun/reflect/DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)^M
    at java/lang/reflect/Constructor.newInstance(Constructor.java:513)^M
    at com/tangosol/run/xml/XmlBean$BeanInfo.makeAdapter(XmlBean.java:1141)^M
    at com/tangosol/run/xml/XmlBean$BeanInfo.<init>(XmlBean.java:966)^M
    at com/tangosol/run/xml/XmlBean.initBeanInfo(XmlBean.java:874)^M
    at com/tangosol/run/xml/XmlBean.findBeanInfo(XmlBean.java:814)^M
    at com/tangosol/run/xml/XmlBean.getBeanInfo(XmlBean.java:362)^M
    at com/tangosol/util/ExternalizableHelper.writeXmlBean(ExternalizableHelper.java:2009)^M
    at com/tangosol/util/ExternalizableHelper.internalWriteObject(ExternalizableHelper.java:2505)^M
    at com/tangosol/util/ExternalizableHelper.toBinary(ExternalizableHelper.java:169)^M
    at com/tangosol/coherence/component/util/daemon/queueProcessor/service/DistributedCache$ConverterKeyToBinary.convert(DistributedCache.CDB:30)^M
    at com/tangosol/util/ConverterCollections$ConverterMap.put(ConverterCollections.java:1317)^M
    at com/tangosol/coherence/component/util/daemon/queueProcessor/service/DistributedCache$ViewMap.put(DistributedCache.CDB:1)^M
    at com/tangosol/coherence/component/util/SafeNamedCache.put(SafeNamedCache.CDB:1)^M
    at com/oracle/ngc/prototype/platform/CacheHelper.createObject(CacheHelper.java:808)^M
    at com/oracle/ngc/prototype/object/Account.BulkCreate(Account.java:186)^M at com/oracle/ngc/prototype/loader/PopulateSubscriptionCache$LoadDaemon.run(PopulateSubscriptionCache.java:379)^M
    at com/tangosol/util/Daemon$DaemonWorker.run(Daemon.java:519)^M
    at java/lang/Thread.run(Thread.java:619)^M
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)^M
    --- End of stack trace^M                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   

    Hi Jasper,
    First, I'd like to underscore that what you see are exceptions that are expected and handled gracefully by the standard Java serialization or Coherence classes.
    The reason you don't see those exceptions with Sun's JVM is that it does not have an option (at least to my knowledge) to show them. This is a very nice debugging feature of JRockit that allows you to see what is going on (and always has been!) under the hood.
    The example you gave is a part of the XmlBean introspection logic checking for a public "clone" method. This code runs once per a class initialization as a part of the static initializer and, as a result, does not impact an application performance. However, if you see exceptions that are occurring constantly, it definitely should be of concern.
    Regards,
    Gene

  • JRockit JVM crash using RHEL 4

    Hi,
    I am using BEA JRockit(R) R27.5.0-110-94909-1.5.0_14-20080204-1558-linux-x86_64 on RHEL 4 (update 5) running 64 bit AMD Athlon processor. I got a JVM crash from an application which has been running stable all this time. The crash occured 1 hour after the application was started. The error message is "Illegal memory access". From the older discussion forums in BEA I found that this crash is possibly due to a bug in JIT optimization. Below is the complete dump from the crash. It would be great if someone can confirm that this crash is due to the same bug or something else.
    Thanks,
    Rakesh
    ===== BEGIN DUMP =============================================================
    JRockit dump produced after 0 days, 01:06:20 on Tue Jan 20 10:23:21 2009
    * If you see this dump, please go to *
    * http://edocs.bea.com/jrockit/go2troubleshooting.html *
    * for troubleshooting information. *
    Additional information is available in:
    /ha/apps/bin/jrockit.2041.dump
    No snapshot file (core dump) will be created because core dumps have been
    disabled. To enable core dumping, try "ulimit -c unlimited"
    before starting JRockit again.
    Error Message: Illegal memory access. 54
    Signal info : si_signo=11, si_code=128 si_addr=(nil)
    Version : BEA JRockit(R) R27.5.0-110-94909-1.5.0_14-20080204-1558-linux-x86_64
    GC Strategy : Mode: static, with strategy: singleconcon
    GC Status : OC currently running, in phase: marking. This is OC#746.
    Heap : 0x2d00000 - 0x22d00000 (Size: 512 MB)
    Compaction : 0xdd00000 - 0xe100000 (Current compaction type: internal)
    CompRefs : References are compressed, with heap base 0x0.
    CPU : AMD Opteron/Athlon64 SSE SSE2 SSE3 EM64T
    Number CPUs : 8
    Tot Phys Mem : 67561517056 (64431 MB)
    OS version : Red Hat Enterprise Linux AS release 4 (Nahant Update 4)
    Linux version 2.6.9-42.0.8.ELsmp ([email protected]) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-3)) #1 SMP Tue Jan 23 12:49:51 EST 2007 (x86_64)
    Thread System: NPTL
    Java locking : Normal
    State : JVM is running
    Command Line : -Xms512M -Xmx1024M -Xss128M -Xgc:singlecon -XXcompactratio:1 -Djava.ext.dirs=/cms/lib/:/cms/ext/:/ha/apps/lib/:/ha/OracleJar/:/ha/dbwrapper/:.: -DserverID=prod -DSystemProperties=/ha/hi/properties/HITcpBootstrap.prp -Dpid=2041 -Dsun.java.launcher=SUN_STANDARD com.ups.coii.tos.server.TOSServer
    java.home : /opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre
    j.class.path : .
    j.lib.path : /opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/lib/amd64/jrockit:/opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/lib/amd64:/opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/../lib/amd64::/opt/mqm/java/lib64/:/opt/mqm/java/lib/
    JAVA_HOME : <not set>
    JAVAOPTIONS: <not set>
    LD_LIBRARY_PATH: /opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/lib/amd64/jrockit:/opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/lib/amd64:/opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/../lib/amd64::/opt/mqm/java/lib64/:/opt/mqm/java/lib/
    LD_ASSUME_KERNEL: <not set>
    C Heap : Good; no memory allocations have failed
    StackOverFlow: 0 StackOverFlowErrors have occured
    OutOfMemory : 0 OutOfMemoryErrors have occured
    Registers (from ThreadContext: 0x42d82960 / OS context: 0x42d82a20):
    rax = 040000000174c008 rcx = 0000000000000000
    rdx = 0000002a95fe6b70 rbx = 0000000000000002
    rsp = 0000000042d82e60 rbp = 0000000042d82fc0
    rsi = 000000001450000c rdi = 0000000042d82ec0
    r8 = 0000000000000001 r9 = 0000002a96002dac
    r10 = 0000002c7a72c140 r11 = 0000000000000021
    r12 = 0000000000000002 r13 = 0000000042d82ec0
    r14 = 0000002ad6893ff0 r15 = 0000000014500000
    cs = 000000000000ab30 fs = 0000000000000000
    gs = 0000000000000000
    rip = 0000002a95df7d2d flags = 0000000000000246
    Stack:
    (* marks the word pointed to by the stack pointer)
    0000000042d82e60: 0000002ad6893ff0* 0000002ad6893ff0 0000000042d82ec0 0000000042d82f60
    0000000042d82e80: 0000002a961222c0 0000002ad6893ff0 0000000014500008 0000002d00000000
    0000000042d82ea0: 0000000014500008 0000002d00000000 0000000014500008 0000002d00000000
    0000000042d82ec0: 0000000000000000 0000002d00000000 0000000014500008 0000002a00000000
    0000000042d82ee0: 0000000014500000 0000000000000000 00000000004ce628 0000000000000001
    0000000042d82f00: 0000002a00000000 000000001450000c 00000000059165d8 00000000059167d8
    Code:
    (* marks the word pointed to by the instruction pointer)
    0000002a95df7cc8: bd831ceb028b4821 48097503fffffed8 0aebfffffed0858b 48fffffed0858b48
    0000002a95df7ce8: c08548c38948008b 8b4c00000102840f c48949fffffea8b5 48002c1a69058b48
    0000002a95df7d08: e9c148082b48d989 06e8c148c8894803 00000008c5048d48 48002c12b9158b48
    0000002a95df7d28: 008b483fe1830203* 485a7501a8e8d348 8948002c1a32058b 03e9c148082b48d9
    0000002a95df7d48: 8306e8c148c88948 4800000001ba3fe1 048d48d18948e2d3 158b4800000008c5
    0000002a95df7d68: 48020348002c1274 2c1837058b480809 8948087400388300 894cfff7ffa2e8df
    Loaded modules:
    (* denotes the module causing the exception)
    0000000000400000-000000000041196b /opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/bin/java
    0000002a9566c000-0000002a9567aff9 /lib64/tls/libpthread.so.0
    0000002a95782000-0000002a9580659b /lib64/tls/libm.so.6
    0000002a95908000-0000002a95909c73 /lib64/libdl.so.2
    0000002a95a0b000-0000002a95b35df9 /lib64/tls/libc.so.6
    0000002a95556000-0000002a9556a34f /lib64/ld-linux-x86-64.so.2
    0000002a95c41000-0000002a95ee448f */opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/lib/amd64/jrockit/libjvm.so
    0000002a96137000-0000002a9613f95a /lib64/tls/librt.so.1
    0000002a96251000-0000002a9625497b /usr/lib64/libnuma.so
    0000002a96356000-0000002a9635ff13 /lib64/libnss_files.so.2
    0000002a964c1000-0000002a964cd467 /opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/lib/amd64/libverify.so
    0000002a965d0000-0000002a965f321b /opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/lib/amd64/libjava.so
    0000002a96707000-0000002a9671a503 /lib64/libnsl.so.1
    0000002ad69ae000-0000002ad69b463f /opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/lib/amd64/native_threads/libhpi.so
    0000002ad9a30000-0000002ad9a3dd93 /opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/lib/amd64/libzip.so
    0000002ad9db4000-0000002ad9dc55cf /opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/lib/amd64/libnet.so
    Scan Dump Helper:
    Iterating in objIter over object at address 0x14500000 (seems to be real).
    The reference that caused the crash is a normal field.
    Scanned object [0000000014500000 0000000014500018) of class java/lang/ThreadLocal$ThreadLocalMap
    0x14500000 : 0x004ce580 classblock
    0x14500004 : 0x00000000 flags
    ===> 0x14500008 : 0x00000002 .table [Ljava/lang/ThreadLocal$ThreadLocalMap$Entry; (java/lang/ThreadLocal$ThreadLocalMap)
    0x1450000c : 0x00000002
    0x14500010 : 0x0000000a
    0x14500014 : 0x00000000
    The field that caused the crash is marked with "===>"
    The reference is bogus and pointing outside the heap.
    Only reference to this object from another object is
    object [00000000059191e8 0000000005919278) of class com/ups/coii/thread/util/ThreadPool$PooledThread
    0x59191e8 : 0x017b55f0 classblock
    0x59191ec : 0x80000000 flags
    0x59191f0 : 0x05919280 .name [C (java/lang/Thread)
    0x59191f4 : 0x00000000 .threadQ Ljava/lang/Thread; (java/lang/Thread)
    0x59191f8 : 0x00000000 .target Ljava/lang/Runnable; (java/lang/Thread)
    0x59191fc : 0x02d02ae8 .group Ljava/lang/ThreadGroup; (java/lang/Thread)
    0x5919200 : 0x05d50b48 .contextClassLoader Ljava/lang/ClassLoader; (java/lang/Thread)
    0x5919204 : 0x059192c0 .inheritedAccessControlContext Ljava/security/AccessControlContext; (java/lang/Thread)
    ===> 0x5919208 : 0x14500000 .threadLocals Ljava/lang/ThreadLocal$ThreadLocalMap; (java/lang/Thread)
    0x591920c : 0x059192d8 .inheritableThreadLocals Ljava/lang/ThreadLocal$ThreadLocalMap; (java/lang/Thread)
    0x5919210 : 0x00000000 .blocker Lsun/nio/ch/Interruptible; (java/lang/Thread)
    0x5919214 : 0x05919278 .blockerLock Ljava/lang/Object; (java/lang/Thread)
    0x5919218 : 0x00000000 .uncaughtExceptionHandler Ljava/lang/Thread$UncaughtExceptionHandler; (java/lang/Thread)
    0x591921c : 0x05916d38 .cwObj Ljava/lang/Object; (java/lang/Thread)
    0x5919220 : 0x00000000 .blockObj Ljava/lang/Object; (java/lang/Thread)
    0x5919224 : 0x04102cf0 .waitNext Ljava/lang/Thread; (java/lang/Thread)
    0x5919228 : 0x00000000 .lockNext Ljava/lang/Thread; (java/lang/Thread)
    0x591922c : 0x059191e8 .blockThreadStop Ljava/lang/Object; (java/lang/Thread)
    0x5919230 : 0x00000000 .accessControlContext Ljava/security/AccessControlContext; (java/lang/Thread)
    0x5919234 : 0x00000005
    0x5919238 : 0x00000000
    0x591923c : 0x00000000
    0x5919240 : 0x00000000
    0x5919244 : 0x00000000
    0x5919248 : 0x00000026
    0x591924c : 0x00000000
    0x5919250 : 0xda213db0
    0x5919254 : 0x0000002a
    0x5919258 : 0x00000000
    0x591925c : 0x00000000
    0x5919260 : 0x000001a1
    0x5919264 : 0x00000000
    0x5919268 : 0x00000001
    0x591926c : 0x05916150 .this$0 Lcom/ups/coii/thread/util/ThreadPool; (com/ups/coii/thread/util/ThreadPool$PooledThread)
    0x5919270 : 0x00000000
    0x5919274 : 0x00000000
    "(GC Main Thread)" id=3 idx=0xc tid=2058 lastJavaFrame=0xfffffffffffffffc
    Stack 0: start=0x42d42000, end=0x42d84000, guards=0x42d47000 (ok), forbidden=0x42d45000
    Thread Stack Trace:
    at mmSingleConFollowReferences+481()@0x2a95df7d2d
    at mmSingleConMark+220()@0x2a95df87ab
    at mmMark+82()@0x2a95cab846
    at mmGCMainLoop+101()@0x2a95cab8eb
    at mmGCMainThread+51()@0x2a95ce826e
    at tsiCallStartFunction+67()@0x2a95d62bfb
    at tsiThreadStub+308()@0x2a95d63e05
    at ptiThreadStub+14()@0x2a95dcb277
    at start_thread+138()@0x2a9567210a
    -- Java stack --
    Extended, platform specific info:
    libc release: 2.3.4-stable
    Elf headers:
    libc ehdrs: EI: 7f454c46020101000000000000000000 ET: 3 EM: 62 V: 1 ENTRY: 000000000001c4a0 PHOFF: 0000000000000040 SHOFF: 000000000013c290 EF: 0x0 HS: 64 PS: 56 PHN; 10 SS: 64 SHN: 66 STIDX: 63
    libpthread ehdrs: EI: 7f454c46020101000000000000000000 ET: 3 EM: 62 V: 1 ENTRY: 0000000000005620 PHOFF: 0000000000000040 SHOFF: 0000000000011e48 EF: 0x0 HS: 64 PS: 56 PHN; 9 SS: 64 SHN: 35 STIDX: 32
    libjvm ehdrs: EI: 7f454c46020101000000000000000000 ET: 3 EM: 62 V: 1 ENTRY: 000000000003f820 PHOFF: 0000000000000040 SHOFF: 000000000037bd90 EF: 0x0 HS: 64 PS: 56 PHN; 3 SS: 64 SHN: 22 STIDX: 19
    * If you see this dump, please go to *
    * http://edocs.bea.com/jrockit/go2troubleshooting.html *
    * for troubleshooting information. *
    ===== END DUMP ===============================================================                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

    Hello Rakesh,
    The crash is in GC code, possiibly caused by an incorrect reference on the heap. This could have been caused by an earlier JIT optimization issue or by a bug in GC or something else - we would need to analyze the full core to know for sure. If you want to pursue this, contact Oracle Support and provide us with the core.
    Another tip is to upgrade to the latest JRockit version. The latest version available bundled with Oracle products is R27.6.0, I believe R27.6.1 is on its way out with a WLS 10 service pack but don't know the exact date.
    Regards,
    Henrik

  • JRockit JVM crash using RHEL 4 (update 5)

    Hi,
    I am using BEA JRockit(R) R27.5.0-110-94909-1.5.0_14-20080204-1558-linux-x86_64 on RHEL 4 (update 5) running 64 bit AMD Athlon processor. I got a JVM crash from an application which has been running stable all this time. The crash occured 1 hour after the application was started. The error message is "Illegal memory access". From the older discussion forums in BEA I found that this crash is possibly due to a bug in JIT optimization. Below is the complete dump from the crash. It would be great if someone can confirm that this crash is due to the same bug or something else.
    Thanks,
    Rakesh
    ===== BEGIN DUMP =============================================================
    JRockit dump produced after 0 days, 01:06:20 on Tue Jan 20 10:23:21 2009
    * If you see this dump, please go to *
    * http://edocs.bea.com/jrockit/go2troubleshooting.html *
    * for troubleshooting information. *
    Additional information is available in:
    /ha/apps/bin/jrockit.2041.dump
    No snapshot file (core dump) will be created because core dumps have been
    disabled. To enable core dumping, try "ulimit -c unlimited"
    before starting JRockit again.
    Error Message: Illegal memory access. [54]
    Signal info : si_signo=11, si_code=128 si_addr=(nil)
    Version : BEA JRockit(R) R27.5.0-110-94909-1.5.0_14-20080204-1558-linux-x86_64
    GC Strategy : Mode: static, with strategy: singleconcon
    GC Status : OC currently running, in phase: marking. This is OC#746.
    Heap : 0x2d00000 - 0x22d00000 (Size: 512 MB)
    Compaction : 0xdd00000 - 0xe100000 (Current compaction type: internal)
    CompRefs : References are compressed, with heap base 0x0.
    CPU : AMD Opteron/Athlon64 SSE SSE2 SSE3 EM64T
    Number CPUs : 8
    Tot Phys Mem : 67561517056 (64431 MB)
    OS version : Red Hat Enterprise Linux AS release 4 (Nahant Update 4)
    Linux version 2.6.9-42.0.8.ELsmp ([email protected]) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-3)) #1 SMP Tue Jan 23 12:49:51 EST 2007 (x86_64)
    Thread System: NPTL
    Java locking : Normal
    State : JVM is running
    Command Line : -Xms512M -Xmx1024M -Xss128M -Xgc:singlecon -XXcompactratio:1 -Djava.ext.dirs=/cms/lib/:/cms/ext/:/ha/apps/lib/:/ha/OracleJar/:/ha/dbwrapper/:.: -DserverID=prod -DSystemProperties=/ha/hi/properties/HITcpBootstrap.prp -Dpid=2041 -Dsun.java.launcher=SUN_STANDARD com.ups.coii.tos.server.TOSServer
    java.home : /opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre
    j.class.path : .
    j.lib.path : /opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/lib/amd64/jrockit:/opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/lib/amd64:/opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/../lib/amd64::/opt/mqm/java/lib64/:/opt/mqm/java/lib/
    JAVA_HOME : <not set>
    JAVAOPTIONS: <not set>
    LD_LIBRARY_PATH: /opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/lib/amd64/jrockit:/opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/lib/amd64:/opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/../lib/amd64::/opt/mqm/java/lib64/:/opt/mqm/java/lib/
    LD_ASSUME_KERNEL: <not set>
    C Heap : Good; no memory allocations have failed
    StackOverFlow: 0 StackOverFlowErrors have occured
    OutOfMemory : 0 OutOfMemoryErrors have occured
    Registers (from ThreadContext: 0x42d82960 / OS context: 0x42d82a20):
    rax = 040000000174c008 rcx = 0000000000000000
    rdx = 0000002a95fe6b70 rbx = 0000000000000002
    rsp = 0000000042d82e60 rbp = 0000000042d82fc0
    rsi = 000000001450000c rdi = 0000000042d82ec0
    r8 = 0000000000000001 r9 = 0000002a96002dac
    r10 = 0000002c7a72c140 r11 = 0000000000000021
    r12 = 0000000000000002 r13 = 0000000042d82ec0
    r14 = 0000002ad6893ff0 r15 = 0000000014500000
    cs = 000000000000ab30 fs = 0000000000000000
    gs = 0000000000000000
    rip = 0000002a95df7d2d flags = 0000000000000246
    Stack:
    (* marks the word pointed to by the stack pointer)
    0000000042d82e60: 0000002ad6893ff0* 0000002ad6893ff0 0000000042d82ec0 0000000042d82f60
    0000000042d82e80: 0000002a961222c0 0000002ad6893ff0 0000000014500008 0000002d00000000
    0000000042d82ea0: 0000000014500008 0000002d00000000 0000000014500008 0000002d00000000
    0000000042d82ec0: 0000000000000000 0000002d00000000 0000000014500008 0000002a00000000
    0000000042d82ee0: 0000000014500000 0000000000000000 00000000004ce628 0000000000000001
    0000000042d82f00: 0000002a00000000 000000001450000c 00000000059165d8 00000000059167d8
    Code:
    (* marks the word pointed to by the instruction pointer)
    0000002a95df7cc8: bd831ceb028b4821 48097503fffffed8 0aebfffffed0858b 48fffffed0858b48
    0000002a95df7ce8: c08548c38948008b 8b4c00000102840f c48949fffffea8b5 48002c1a69058b48
    0000002a95df7d08: e9c148082b48d989 06e8c148c8894803 00000008c5048d48 48002c12b9158b48
    0000002a95df7d28: 008b483fe1830203* 485a7501a8e8d348 8948002c1a32058b 03e9c148082b48d9
    0000002a95df7d48: 8306e8c148c88948 4800000001ba3fe1 048d48d18948e2d3 158b4800000008c5
    0000002a95df7d68: 48020348002c1274 2c1837058b480809 8948087400388300 894cfff7ffa2e8df
    Loaded modules:
    (* denotes the module causing the exception)
    0000000000400000-000000000041196b /opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/bin/java
    0000002a9566c000-0000002a9567aff9 /lib64/tls/libpthread.so.0
    0000002a95782000-0000002a9580659b /lib64/tls/libm.so.6
    0000002a95908000-0000002a95909c73 /lib64/libdl.so.2
    0000002a95a0b000-0000002a95b35df9 /lib64/tls/libc.so.6
    0000002a95556000-0000002a9556a34f /lib64/ld-linux-x86-64.so.2
    0000002a95c41000-0000002a95ee448f */opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/lib/amd64/jrockit/libjvm.so
    0000002a96137000-0000002a9613f95a /lib64/tls/librt.so.1
    0000002a96251000-0000002a9625497b /usr/lib64/libnuma.so
    0000002a96356000-0000002a9635ff13 /lib64/libnss_files.so.2
    0000002a964c1000-0000002a964cd467 /opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/lib/amd64/libverify.so
    0000002a965d0000-0000002a965f321b /opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/lib/amd64/libjava.so
    0000002a96707000-0000002a9671a503 /lib64/libnsl.so.1
    0000002ad69ae000-0000002ad69b463f /opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/lib/amd64/native_threads/libhpi.so
    0000002ad9a30000-0000002ad9a3dd93 /opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/lib/amd64/libzip.so
    0000002ad9db4000-0000002ad9dc55cf /opt/bea/jrockit-R27.5.0-jdk1.5.0_14/jre/lib/amd64/libnet.so
    Scan Dump Helper:
    Iterating in objIter over object at address 0x14500000 (seems to be real).
    The reference that caused the crash is a normal field.
    Scanned object [0000000014500000 0000000014500018) of class java/lang/ThreadLocal$ThreadLocalMap
    0x14500000 : 0x004ce580 [classblock]
    0x14500004 : 0x00000000 [flags]
    ===> 0x14500008 : 0x00000002 .table [Ljava/lang/ThreadLocal$ThreadLocalMap$Entry; (java/lang/ThreadLocal$ThreadLocalMap)
          0x1450000c : 0x00000002
          0x14500010 : 0x0000000a
          0x14500014 : 0x00000000
         The field that caused the crash is marked with "===>"
       The reference is bogus and pointing outside the heap.
       Only reference to this object from another object is
    object [00000000059191e8 0000000005919278) of class com/ups/coii/thread/util/ThreadPool$PooledThread
          0x59191e8 : 0x017b55f0 [classblock]
    0x59191ec : 0x80000000 [flags]
    0x59191f0 : 0x05919280 .name [C (java/lang/Thread)
          0x59191f4 : 0x00000000 .threadQ Ljava/lang/Thread; (java/lang/Thread)
          0x59191f8 : 0x00000000 .target Ljava/lang/Runnable; (java/lang/Thread)
          0x59191fc : 0x02d02ae8 .group Ljava/lang/ThreadGroup; (java/lang/Thread)
          0x5919200 : 0x05d50b48 .contextClassLoader Ljava/lang/ClassLoader; (java/lang/Thread)
          0x5919204 : 0x059192c0 .inheritedAccessControlContext Ljava/security/AccessControlContext; (java/lang/Thread)
    ===> 0x5919208 : 0x14500000 .threadLocals Ljava/lang/ThreadLocal$ThreadLocalMap; (java/lang/Thread)
          0x591920c : 0x059192d8 .inheritableThreadLocals Ljava/lang/ThreadLocal$ThreadLocalMap; (java/lang/Thread)
          0x5919210 : 0x00000000 .blocker Lsun/nio/ch/Interruptible; (java/lang/Thread)
          0x5919214 : 0x05919278 .blockerLock Ljava/lang/Object; (java/lang/Thread)
          0x5919218 : 0x00000000 .uncaughtExceptionHandler Ljava/lang/Thread$UncaughtExceptionHandler; (java/lang/Thread)
          0x591921c : 0x05916d38 .cwObj Ljava/lang/Object; (java/lang/Thread)
          0x5919220 : 0x00000000 .blockObj Ljava/lang/Object; (java/lang/Thread)
          0x5919224 : 0x04102cf0 .waitNext Ljava/lang/Thread; (java/lang/Thread)
          0x5919228 : 0x00000000 .lockNext Ljava/lang/Thread; (java/lang/Thread)
          0x591922c : 0x059191e8 .blockThreadStop Ljava/lang/Object; (java/lang/Thread)
          0x5919230 : 0x00000000 .accessControlContext Ljava/security/AccessControlContext; (java/lang/Thread)
          0x5919234 : 0x00000005
          0x5919238 : 0x00000000
          0x591923c : 0x00000000
          0x5919240 : 0x00000000
          0x5919244 : 0x00000000
          0x5919248 : 0x00000026
          0x591924c : 0x00000000
          0x5919250 : 0xda213db0
          0x5919254 : 0x0000002a
          0x5919258 : 0x00000000
          0x591925c : 0x00000000
          0x5919260 : 0x000001a1
          0x5919264 : 0x00000000
          0x5919268 : 0x00000001
          0x591926c : 0x05916150 .this$0 Lcom/ups/coii/thread/util/ThreadPool; (com/ups/coii/thread/util/ThreadPool$PooledThread)
          0x5919270 : 0x00000000
          0x5919274 : 0x00000000
    "(GC Main Thread)" id=3 idx=0xc tid=2058 lastJavaFrame=0xfffffffffffffffc
    Stack 0: start=0x42d42000, end=0x42d84000, guards=0x42d47000 (ok), forbidden=0x42d45000
    Thread Stack Trace:
        at mmSingleConFollowReferences+481()@0x2a95df7d2d
        at mmSingleConMark+220()@0x2a95df87ab
        at mmMark+82()@0x2a95cab846
        at mmGCMainLoop+101()@0x2a95cab8eb
        at mmGCMainThread+51()@0x2a95ce826e
        at tsiCallStartFunction+67()@0x2a95d62bfb
        at tsiThreadStub+308()@0x2a95d63e05
        at ptiThreadStub+14()@0x2a95dcb277
        at start_thread+138()@0x2a9567210a
        -- Java stack --
    Extended, platform specific info:
    libc release: 2.3.4-stable
    Elf headers:
    libc       ehdrs: EI: 7f454c46020101000000000000000000 ET: 3 EM: 62 V: 1 ENTRY: 000000000001c4a0 PHOFF: 0000000000000040 SHOFF: 000000000013c290 EF: 0x0 HS: 64 PS: 56 PHN; 10 SS: 64 SHN: 66 STIDX: 63
    libpthread ehdrs: EI: 7f454c46020101000000000000000000 ET: 3 EM: 62 V: 1 ENTRY: 0000000000005620 PHOFF: 0000000000000040 SHOFF: 0000000000011e48 EF: 0x0 HS: 64 PS: 56 PHN; 9 SS: 64 SHN: 35 STIDX: 32
    libjvm     ehdrs: EI: 7f454c46020101000000000000000000 ET: 3 EM: 62 V: 1 ENTRY: 000000000003f820 PHOFF: 0000000000000040 SHOFF: 000000000037bd90 EF: 0x0 HS: 64 PS: 56 PHN; 3 SS: 64 SHN: 22 STIDX: 19
        *  If you see this dump, please go to                    *
        *  http://edocs.bea.com/jrockit/go2troubleshooting.html  *
        *  for troubleshooting information.                      *
    ===== END DUMP ===============================================================                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

    You should open a tar with support (http://metalink.oracle.com ; I am not sure if that is the correct support site for jrockit)
    Because the information is all about jrockit and not linux, you probably are not going to get much help here.
    You could try the jrockit forum: JRockit

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