PM75822: ABEND0C4 DFSNC110 AFTER LABEL CL1LEAVE BECAUSE REG6 (NCLZWORK) POINTS TO STORAGE THAT IS N/A

A fix is available

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APAR status

  • Closed as program error.

Error description

  • ABEND0C4 occurs at x'9A0' into DFSNC110 under label CL1LEAVE
    because REG6 (NCLZWORK) points to storage that is not available.
    It should point to NCLZERCD.
    Saveflow:
    DFSICIO0, DFSNCLY0, DFSNCLZ0, NCLZSIGN, DFSNC110, DFSNCS40 (ret)
    DFSSPM00 (ret)
    The ABEND0C4 occurs because the NCLZWORK pointed to by REG6
    has been freed. The systrace shows FREEMAIN from DFSMODU0
    for X'00008068'.
    The problem occurs in DFSNCS40 who frees the NCLZWORK area
    under labels PROCFR20 and PROCFR30 before returning to
    DFSNC110. DFSNC110 then tries to use that area. Since this
    is HIOP, the storage could have been available (then no
    abend).
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All IMS V10 users who signon to IMS.         *
    ****************************************************************
    * PROBLEM DESCRIPTION: ABENDS0C4 in DFSNC110 after label       *
    *                      CL1LEAVE accessing storage pointed to   *
    *                      by R6 (NCLZWORK) which has been freed.  *
    ****************************************************************
    * RECOMMENDATION: INSTALL CORRECTIVE SERVICE FOR APAR/PTF      *
    ****************************************************************
    An ABENDS0C4 occurs in DFSNC110 after label CL1LEAVE
    trying to retrieve the reason code from NCLZWORK.
    
    Just before label CL1LEAVE, DFSNC110 calls DFSNCS40 to
    release NCLZWORK. DFSNC110 should not be accessing
    NCLZWORK after the storage has been released.
    

Problem conclusion

  • GEN:
    KEYWORDS:
    
    *** END IMS KEYWORDS ***
    DFSNC110 has been modified to save the reason code before
    calling DFSNCS40 to release NCLZWORK.  On return, the reason
    code will be stored in R15 before returning to the caller.
    

Temporary fix

  • *********
    * HIPER *
    *********
    

Comments

APAR Information

  • APAR number

    PM75822

  • Reported component name

    IMS V10

  • Reported component ID

    5635A0100

  • Reported release

    012

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-10-24

  • Closed date

    2012-11-08

  • Last modified date

    2012-12-04

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

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

    PM75835 PM75836 UK83374

Modules/Macros

  •    DFSNC110
    

Fix information

  • Fixed component name

    IMS V10

  • Fixed component ID

    5635A0100

Applicable component levels

  • R012 PSY UK83374

       UP12/11/13 P F211

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:

IMS

Software version:

012

Reference #:

PM75822

Modified date:

2012-12-04

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