PM83578: ABENDS S0C4 DBFCMP11 DEDB 64-BIT FPBP64=Y SYSTEM WITH COMPRESSED DB, HIGH HALF R0 NONZERO IN MOVESEG3 ( NON ZERO ENTRY DBFCMP11 )

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• S0C4-4B DBFCMP11 MOVESEG3 on 64-bit DEDB buffering system
  ( FPBP64 = Y ) and DEDB with segment compression.
  R0 is used in MOVESEG3 to reference 31-bit work area by MVCL
  in 64-bit mode, but R0 at entry to DBFCMP11 as x'00000001'
  and it is never cleared in DBFCMP11 before MOVESEG3 is called.
  It appears the caller, PL/X module DBFMCSS2, may have corrupted
  the register. It should be cleared before use in DBFCMP11.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: IMSFP V11 DEDB users with 64-BIT, FPBP64=Y   *
  *                 system with compressed DBs.                  *
  ****************************************************************
  * PROBLEM DESCRIPTION: Abend S0C4 in DBFCMP11 DEDB 64-BIT,     *
  *                      FPBP64=Y system with compressed DBs.    *
  *                      The HIGH HALF of R0 is NONZERO upon     *
  *                      entry to MOVESEG2 routine.              *
  ****************************************************************
  * RECOMMENDATION: INSTALL CORRECTIVE SERVICE FOR APAR/PTF      *
  ****************************************************************
  Register 0, R0 has residual data in the HI-HALF before we use
  it in 64-bit mode routine MOVESEG2. It needs to be cleared.
  

Problem conclusion

• GEN:
  KEYWORDS:
  
  *** END IMS KEYWORDS ***
  
  DBFCMP11 - Code has been added to clear the HI-HALF R0 in
             MOVESEG2.
  

Temporary fix

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

Comments

APAR Information

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

  PM79175

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

  UK92354

Modules/Macros

•    DBFCMP11
  

Fix information

• Fixed component name

  IMS V11

• Fixed component ID

  5635A0200

Applicable component levels

• R100 PSY UK92354

     UP13/03/12 P F303

Fix is available

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