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PI78835: DFHSM0002 A SEVERE ERROR (CODE X'030D') HAS OCCURRED IN MODULE DFHSMGF

A fix is available

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APAR status

  • Closed as program error.

Error description

  • The free QPF chain for the ICE subpool has become corrupt. The
    first byte of the first word of a cell on the free chain has
    been incremented, so that this cell no longer points to the SCA.
    The storage violation trap is active, and storage violations
    have been detected for a task who primary facility is an ICE.
    Additional symptoms:
    You are running with the storage violation trap-
    csfe debug,chkstsk=current
    and it springs.  Later you may see the following:
    DFHSM0002 A severe error (code X'030D') has
              occurred in module DFHSMGF.
    This is occurring on subpool APICE31.
    Similar to PI45278, in that case the storage violation
    trap was no active.
    ICE QPF Invalid FREE cell
    

Local fix

  • n/a
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All CICS users                               *
    ****************************************************************
    * PROBLEM DESCRIPTION: Storage corruption when Storage         *
    *                      Violation Checking detects a violation  *
    *                      caused by a non-terminal task.          *
    ****************************************************************
    * RECOMMENDATION: .                                            *
    ****************************************************************
    A CICS region is running with CHKSTSK Storage Violation checking
    active. A non-terminal task suffers a violation.
    Storage Manager calls DFHTFIQ to increment a counter in
    TCTTESCV, but the task does not have a TCTTE and has an ICE,
    so a piece of storage beyond the ICE is updated.
    

Problem conclusion

  • DFHSMCK has been changed to prevent it from calling DFHTFIQ when
    the task's principal facility is not a TCTTE.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI78835

  • Reported component name

    CICS TS Z/OS V5

  • Reported component ID

    5655Y0400

  • Reported release

    000

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-03-27

  • Closed date

    2017-05-09

  • Last modified date

    2017-06-20

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

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

    UI47095 UI47096 PI83315

Modules/Macros

  • DFHSMCK
    

Fix information

  • Fixed component name

    CICS TS Z/OS V5

  • Fixed component ID

    5655Y0400

Applicable component levels

  • R000 PSY UI47095

       UP17/05/15 P F705

  • R900 PSY UI47096

       UP17/05/15 P F705

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.



Document information

More support for: CICS Transaction Server

Software version: 5.3

Reference #: PI78835

Modified date: 20 June 2017


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