PM86475: CICS TS 5.1 PROGRAM RUNNING IN AMODE 64 CAUSES AN ABEND0C4 PIC 3B BUT KERNEL INFORMATION SHOWS AN ODD PSW ADDRESS

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• You are running CICS TS 5.1 and have a program running in AMODE
  64 that loades and address with the AMODE=31 indicator switched
  on and branched to this address using BASR R14,R15.   In this
  example R15 = 98561AF0.  This caused the following message to
  be issued:
  DFHSR0001  abend (code 0C4/AKEA) has occurred at offset x'xxx'
  in program.
  This was an abend0C4 PIC 3B.
  The problem is, when looking at the dump, our error information
  reports an 'odd' psw ending in 1, and have turned off the
  'amode=31' indicator in the address.  The address branched to
  was 98561AF0,   CICS kernel error reports the psw as:
      PSW:      079D1001  80000000  00000000  18561AF1
  when it should be:
      PSW1..... 07951001  80000000  00000000  98561AF0
  Additional Symptom(s) Search Keyword(s): AMODE 64, KIXREVJJW
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All                                          *
  ****************************************************************
  * PROBLEM DESCRIPTION: An AMODE64 assembler program invalidly  *
  *                      branches to an address inside the bar.  *
  *                      When looking at the dump, it shows a    *
  *                      PSW address ending in 1.                *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  An AMODE64 assembler program invalidly branches to an address
  inside the bar. In the dump, bits 0-31 of the PSW instruction
  address are correctly displayed as zeros, but bit 32 is off and
  bit 63 is on.
  

Problem conclusion

• DFHKESTX and DFHKEDUF have been changed to display the next
  instruction address correctly.
  

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:

  UK96545

Modules/Macros

• DFHKEDUF DFHKESTX
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R800 PSY UK96545

     UP13/08/15 P F308

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.