PM83042: ABEND0C4 IN DFSYCMD0 IN SUBROUTINE CMD_YCM20 DUE TO AN INVALID POINTER IN MSGPRE_PTR.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Abend0c4 in DFSYCMD0 at offset x'DCC' because Register 6 has
  an invalid address. The code is expectiong Reg 6 to contain
  the OTMA prefix address.  In subroutine Init_PRE the code
  obtained a temporary prefix address and saved the pointer to
  the temporary address in MSGPRE_Ptr. At the end of the
  subroutine, the storage was released by the pointer was not
  cleared. When the pointer is used again the abend can happen.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All IMS V13 OTMA users issuing IMS commands  *
  *                 via Commit-then-Send (CM0) protocol.         *
  ****************************************************************
  * PROBLEM DESCRIPTION: ABEND0C4 in DFSYCMD0 due to an invalid  *
  *                      message prefix pointer (MSGPRE_PTR).    *
  *                                                              *
  *                      Forward Fit of PM78031.                 *
  ****************************************************************
  * RECOMMENDATION: INSTALL CORRECTIVE SERVICE FOR APAR/PTF      *
  ****************************************************************
  When an IMS command is issued from an OTMA client using CM0
  protocol, DFSYCMD0 gets a temporary block of storage to use as
  the YQAB message prefix for an insert call to the QMGR, and
  stores the address in MSGPRE_PTR. After the QMGR insert call,
  the storage is released. However, MSGPRE_PTR is not restored
  with the prefix address that is pointed to by YTIB_PREFIX_PTR,
  which can lead to an ABEND0C4.
  

Problem conclusion

• GEN:
  KEYWORDS:
  
  *** END IMS KEYWORDS ***
  DFSYCMD0 was modified to restore the message prefix pointer
  after the temporary storage is released.
  

Temporary fix

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

Comments

APAR Information

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

  PM78031

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

  UK92152

Modules/Macros

•    DFSYCMD0
  

Fix information

• Fixed component name

  IMS V13

• Fixed component ID

  5635A0400

Applicable component levels

• R300 PSY UK92152

     UP13/03/05 P F303 Ž

Fix is available

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