IBM Support

PI12836: SYSTEM BELOW THE LINE STORAGE ABENDS 878-10

A fix is available

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • After adding more INCLUDES in the BEGINVTAM portion of the
    TELNET profile all storage below the line became allocated
    resulting in a system abends878-10. The INCLUDE accesses a
    dataset which requires a DCB that needs to be in below the
    line storage. However the storage is being allocated on a
    page boundary for every include. This causes a new page to
    be allocated for every INCLUDE. The page boundary
    requirement needs to be removed so that the INCLUDES can
    allocate many DCBs on a single page.
    

Local fix

  • Reduce the amount if includes.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of the IBM Communications Server   *
    *                 for z/OS Version 1 Release(s) 13 IP: TN3270  *
    *                 Telnet Server                                *
    ****************************************************************
    * PROBLEM DESCRIPTION: Telnet allocates below the line         *
    *                      storage on page boundaries when         *
    *                      processing INCLUDE statements           *
    *                      in the profile. This can cause          *
    *                      878 abends.                             *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    The problem may be summarized as follows:
    1. Telnet is processing the profile.
    2. An INCLUDE statement is processed.
    3. Telnet obtains below the line storage for the DCB
       for the dataset on a page boundary.
    4. If enough INCLUDE statements are specified in the
       same Telnet statement, Telnet could run out of
       below the line storage, causing an 878 abend.
    +-------------------------------------------------------------+
    + Please check our Communications Server for OS/390 homepages +
    + for common networking tips and fixes.  The URL for these    +
    + homepages can be found in Informational APAR II11334.       +
    +-------------------------------------------------------------+
    

Problem conclusion

  • EZBTMPRF is updated to remove the page boundary specification
    for obtain below the line storage.
    
    * Cross Reference between External and Internal Names
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI12836

  • Reported component name

    TCP/IP V3 MVS

  • Reported component ID

    5655HAL00

  • Reported release

    1D0

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2014-03-03

  • Closed date

    2014-03-25

  • Last modified date

    2014-06-03

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

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

    UI16391 PI14530

Modules/Macros

  • EZBTMPRF
    

Fix information

  • Fixed component name

    TCP/IP V3 MVS

  • Fixed component ID

    5655HAL00

Applicable component levels

  • R1D0 PSY UI16391

       UP14/05/06 P F405

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":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG19M","label":"APARs - z\/OS environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"1D0","Edition":"","Line of Business":{"code":"","label":""}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSCY4DZ","label":"DO NOT USE"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"1D0","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
03 June 2014