IBM Support

PM86724: WHEN ACQUIRE CONNECTION FOR IPIC CONNECTION FAILS, STORAGE IS ORPHANED.

A fix is available

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • If there are repeated attempts to acquire an IPIC Connection
    that fails, there is a storage leak which can result in a
    DFHSM0133 message.
    
    Trace shows that DFHWBCL is doing an OPEN_SESSION. During the
    processing of the OPEN_SESSION, storage is getmained for
    WBCMCSBF from the WBGENRAL subpool. If the OPEN_SESSION fails,
    then the CISC transaction ends without ever freeing the storage
    it getmained for WBCMCSBF
    
    This results in a storage leak and could eventually lead to an
    SOS should this happened repeatedly.
    
    Additional Symptom(s) Search Keyword(s): KIXREVRJL
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All CICS users.                              *
    ****************************************************************
    * PROBLEM DESCRIPTION: WHEN ACQUIRE CONNECTION FOR IPIC        *
    *                      CONNECTION FAILS, STORAGE WBCMCSBF IS   *
    *                      NOT FREEMAINED.                         *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    An IPIC acquire fails because it experience sockets connect
    failure.DFHWBCL open_session is responsible for creating the
    web session from client to server, it allocates storage WBCMCSBF
    which uses as web session peek header buffer. The code will not
    freemain WBCMCSBF storage if its connecting fails.
    CICS will go into SOS after lots of IPIC acquire failure because
    socket connect error.
    Addtional Keywords: Short on storage.
    

Problem conclusion

  • DFHWBCL has been changed to tidy up WBCMCSBF storage after IPIC
    client connecting failure.
    

Temporary fix

  • FIX AVAILABLE BY PTF ONLY
    

Comments

APAR Information

  • APAR number

    PM86724

  • Reported component name

    CICS TS Z/OS V5

  • Reported component ID

    5655Y0400

  • Reported release

    800

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-04-10

  • Closed date

    2013-05-09

  • Last modified date

    2015-03-04

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

    PM86628

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

    UK94184

Modules/Macros

  • DFHWBCL
    

Fix information

  • Fixed component name

    CICS TS Z/OS V5

  • Fixed component ID

    5655Y0400

Applicable component levels

  • R800 PSY UK94184

       UP13/05/17 P F305

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.

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSGMGV","label":"CICS Transaction Server"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.1","Edition":"","Line of Business":{"code":"LOB35","label":"Mainframe SW"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG19M","label":"APARs - z\/OS environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.1","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
04 March 2015