PM78244: CICS TG fails to shut down after an IPIC connection has been closed.

A fix is available

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • While a heavy IPIC workload was being run, an IPIC connection
    was closed. CICS TG would not shut down.
    
    A core dump was taken while CICS TG was unresponsive and this
    showed a "Deadlock detected" message and the deadlocked threads
    were performing IPIC work.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of CICS TG with IPIC connected     *
    *                 CICS servers.                                *
    ****************************************************************
    * PROBLEM DESCRIPTION: The Gateway daemon does not shut down   *
    *                      normally.                               *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    When an IPIC connection is stopped, CICS TG threads could
    become deadlocked.  This prevents the Gateway daemon shutting
    down.
    

Problem conclusion

  • CICS TG has been changed to prevent the reported deadlock.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM78244

  • Reported component name

    CTG V8 FOR Z/OS

  • Reported component ID

    5655W1000

  • Reported release

    800

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-12-03

  • Closed date

    2013-01-14

  • Last modified date

    2013-02-04

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

    PM77227

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

    UK90925

Modules/Macros

  •    CTG00201 CTG00204 CTG00585
    

Fix information

  • Fixed component name

    CTG V8 FOR Z/OS

  • Fixed component ID

    5655W1000

Applicable component levels

  • R800 PSY UK90925

       UP13/01/24 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:

CICS Transaction Gateway
CTG

Software version:

8.0

Reference #:

PM78244

Modified date:

2013-02-04

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