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

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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

  • ×**** 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 / Xsystem

  • 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 Ž

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

Modified date:
26 April 2013

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