IZ78404: MESSAGES WRITTEN TO SYSLOG WHEN -XLOG:NONE ENABLED

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APAR status

  • Closed as program error.

Error description

  • Error Message: -Xlog:none is supposed to stop messages being
    written to the syslog however, on Java 6 SR8 (and earlier SRs),
    messages are written to syslog with -Xlog:none enabled.
    .
    This issue can be reproduced  by running the following java
    command, which shows dump messages generated with the JVM stops:
    $ ./java -Xdump:java:events=vmstop -Xlog:none -version
    java version "1.6.0"
    Java(TM) SE Runtime Environment (build
    pap6460sr8-20100409_01(SR8))
    IBM J9 VM (build 2.4, JRE 1.6.0 IBM J9 2.4 AIX ppc64-64
    jvmap6460sr8-20100401_55940 (JIT enabled, AOT enabled)
    J9VM - 20100401_055940
    JIT  - r9_20100401_15339
    GC   - 20100308_AA)
    JCL  - 20100408_01
    JVMDUMP006I Processing dump event "vmstop", detail
    "#0000000000000000" - please wait.
    JVMDUMP032I JVM requested Java dump using
    '<path>/javacore.20100628.170604.1134826.0001.txt' in response
    to an event
    JVMDUMP010I Java dump written to
    <path>/javacore.20100628.170604.1134826.0001.txt
    JVMDUMP013I Processed dump event "vmstop", detail
    "#0000000000000000".
    .
    Then check the system log to see the JVMDUMP032I message wrongly
    printed there too.
    .
    Stack Trace: N/A
    .
    N/A
    

Local fix

  • N/A
    

Problem summary

  • The problem is caused when the JVM writes a message to the
    syslog, despite -Xlog:none being specified.
    

Problem conclusion

  • The JVM has been updated to respect the -Xlog:none option, and
    not write message to the syslog when it is specified.
    .
    This defect will be fixed in:
    6.0.0 SR9
    

Temporary fix

Comments

APAR Information

  • APAR number

    IZ78404

  • Reported component name

    J9 COMMON CODE

  • Reported component ID

    620700127

  • Reported release

    600

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-06-30

  • Closed date

    2010-07-13

  • Last modified date

    2010-12-02

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

    IZ89805

Fix information

  • Fixed component name

    J9 COMMON CODE

  • Fixed component ID

    620700127

Applicable component levels

  • R600 PSN

       UP



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Document information


More support for:

Runtimes for Java Technology
Virtual Machine

Software version:

6.0

Reference #:

IZ78404

Modified date:

2010-12-02

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