PK41982: AN ABEND0C4 MAY OCCUR IN DFHAPLI3 WHEN LOADING VERY SMALL PROGRAMS.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• An 8 byte program defined as assembler, gets loaded by CICS on
  the last x'10' bytes of a page. The load point and entry point
  address is: 001FFFF0 . The code that blows up in DFHAPLI3 is
  CLI X'14'(R7),x'CE' at this instruction R7 has 001FFFF0 in it.
  The task is running in SUBSPACE mode and the adjacent page
  (beginning at 00200000) is task storage belonging to a different
  task, thus causing the CLI to abend.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All.                                         *
  ****************************************************************
  * PROBLEM DESCRIPTION: Abend0C4 in DFHAPLI3 when loading a     *
  *                      very small program.                     *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  An 8 byte assembler program is being loaded on the last 10 bytes
  of a page. When loading the program DFHAPLI3 looks for
  cppl_cel_sig at the start of an XPLINK program. cppl_cel_sig is
  at offset X'14' from the plb_entry_point, which takes us
  into the next page of storage. This storage belongs to a
  different task running in subspace mode (ISOLATE(YES)) and so
  the check fails with abend0C4 at offset X'682' in DFHAPLI3.
  Additional keywords:
  0C4 abends0c4 ceestart_csect cppl_eyecatch APLI3 DFHAPLI
  transaction isolation
  

Problem conclusion

• DFHAPLI3 will check that the length of the program following
  the entry point is sufficient to include the ceestart_csect
  up to the end of field cppl_eyecatch  before attempting to
  check for these fields when attempting to determine if the
  program is compiled with the XPLINK option.
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

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

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

  UK26690 PK48200

Modules/Macros

•    DESLI3   DFHAPLI3 DFHAPLJ3 DFHAPLX3
  

Fix information

• Fixed component name

  CICSTS 3.1 Z/OS

• Fixed component ID

  5655M1500

Applicable component levels

• R400 PSY UK26690

     UP07/07/03 P F707

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.