PM70293: WMQ V7.1 - CHIN LOOPS IN CSQXGETS AND THE LOG IS FLOODED WITH MESSAGE CSQX068I.

A fix is available

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APAR status

  • Closed as program error.

Error description

  • The CHIN starts looping through CSQXGETS at offset x'4C4'.
    The log is continously writing message:
    
    +CSQX068I MQB0 CSQXBPSG Channel initiator has scavenged 24 MB of
                   transmission buffers
    

Local fix

  • n/a
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 7 *
    *                 Release 1 Modification 0.                    *
    ****************************************************************
    * PROBLEM DESCRIPTION: Chinit may loop in CSQXADPM attempting  *
    *                      to repeatedly resize a buffer that has  *
    *                      grown during data conversion. Message   *
    *                      CSQX068I may also be repeatedly issued. *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    During data conversion when the chinit determines that a buffer
    is too small to contain the output from a converted message, the
    buffer may be resized. Due to a failure to clear a variable it
    is possible that under some circumstances the resizing process
    will enter a loop.
    

Problem conclusion

  • Processing has been amended to ensure that the resize logic will
    not loop incorrectly.
    100Y
    CSQXADPM
    

Temporary fix

  • *********
    * HIPER *
    *********
    

Comments

  • ž**** PE13/04/23 FIX IN ERROR. SEE APAR PM85756  FOR DESCRIPTION
    

APAR Information

  • APAR number

    PM70293

  • Reported component name

    WMQ Z/OS V7

  • Reported component ID

    5655R3600

  • Reported release

    100

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-08-06

  • Closed date

    2012-11-28

  • Last modified date

    2013-04-26

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

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

    UK83816

Modules/Macros

  • CSQXADPM
    

Fix information

  • Fixed component name

    WMQ Z/OS V7

  • Fixed component ID

    5655R3600

Applicable component levels

  • R100 PSY UK83816

       UP13/01/16 P F301

Fix is available

  • Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.



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Document information


More support for:

z/OS family

Software version:

7.1

Reference #:

PM70293

Modified date:

2013-04-26

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