PM80682: ABEND0C4 IN CM7VVGR AFTER /RST LINK ALL WITH VGR ACTIVE. THE ECB ADDRESS PASSED TO VTAM IS INVALID. 13/01/16 PTF PECHANGE

A fix is available

Subscribe

You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • An ABEND0C4 occurred in module DFSCM7V0 routine CM7VVGR when an
    invalid ECB address (RPLECB) is passed to VTAM module ISTAICI2
    on a CHANGE ENDAFFIN call. The ABEND occurred in an environment
    with VGR active and APAR PM74023 applied. The invalid address
    was passed to VTAM in R10 and appears in R8 at ABEND. The logs
    show a DFS3201 MAXIMUM SESSIONS REACHED message was issued for
    the MSC link immediately before the ABEND. The output RPL for
    the MSC link is being used to issue the RPLCHNG call, but it has
    not been initialized yet resulting in the ABEND0C4.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All IMS V11 users with PM73190/UK82566       *
    *                 and using MSC VTAM links and VTAM Generic    *
    *                 Resources.                                   *
    ****************************************************************
    * PROBLEM DESCRIPTION: An ABENDS0C4 occurred in module         *
    *                      DFSCM7V0 routine CM7VVGR due to a       *
    *                      residual value in RPLECB.               *
    *                                                              *
    *                      This is a retro-fit APAR PM80478.       *
    ****************************************************************
    * RECOMMENDATION: INSTALL CORRECTIVE SERVICE FOR APAR/PTF      *
    ****************************************************************
    After APAR PM73190/UK82566, an ABEND0C4 occurs in module
    DFSCM7V0 due to an invalid ECB (RPLECB) address.  The problem
    occurs as follows:
    
    1. A cold MSC session is initiated via a /RST LINK command.
    
    2. Due to maximum sessions reached, a MSGDFS3201 message
       is issued.  As a result of this, DFSCM7A0 does not
       initialize the RPL in the output buffer.  CTB7INIT is not
       set to indicate that the RPL has been initialized.
    
    3. DFSCM7V0 gets control and issues a CHANGE ENDAFFNF request
       to VTAM since APAR PM73190 removed the code to check for
       CTB7INIT to determine if the RPLs have been initialized.
    
       Using the residual data in RPLECB results in the abend.
    

Problem conclusion

  • GEN:
    KEYWORDS:
    
    *** END IMS KEYWORDS ***
    DFSCM7V0 has been modified to run the LXB chain to determine
    if the current LLB exists.  If the LLB exists in the LXB chain,
    RPLECB will be updated with the Send ECB from the LXB.
    

Temporary fix

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

Comments

APAR Information

  • APAR number

    PM80682

  • Reported component name

    IMS V11

  • Reported component ID

    5635A0200

  • Reported release

    102

  • Status

    CLOSED PER

  • PE

    YesPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-01-15

  • Closed date

    2013-02-14

  • Last modified date

    2013-03-04

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

    PM80478

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

    UK91686

Modules/Macros

  •    DFSCM7V0
    

Fix information

  • Fixed component name

    IMS V11

  • Fixed component ID

    5635A0200

Applicable component levels

  • R102 PSY UK91686

       UP13/02/20 P F302 ®

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.



Rate this page:

(0 users)Average rating

Add comments

Document information


More support for:

IMS

Software version:

102

Reference #:

PM80682

Modified date:

2013-03-04

Translate my page

Machine Translation

Content navigation