PK54978: ABEND0C4 FABADBCI X'5F4' RUNNING POINTER CHECKER

APAR status

• Closed as program error.

Error description

• ABENDS0C4 in FABADBCI at x'5F4' when running pointer checker.
  Symptom dump shows the abend occuring in the FABADA1 routine.
  
  This is a forward fit of HPFPU FPA APAR PK54813 V2R2.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All DEDB Pointer Checker users of High       *
  *                 Performance Fast Path Utilities FP Basic     *
  *                 Tools Version 3 Release 1 (FMID: H31A310).   *
  ****************************************************************
  * PROBLEM DESCRIPTION: Forward Fit APAR of FPB V2R2 PK54813 :  *
  *                      ABENDS0C4 in FABADBCI at x'5F4' when    *
  *                      running pointer checker.                *
  ****************************************************************
  * RECOMMENDATION: Apply the maintenance for this APAR.         *
  ****************************************************************
  Forward Fit APAR of FPB V2R2 PK54813 :
  When validating each entries of an IOVF bitmap CI image in the
  buffer through Do loop process, the logic referred out of the
  buffer that could not be accessed, thus S0C4 occurred.
  

Problem conclusion

• The IOVF bitmap CI is the last CI of the IOVF part, that is, the
  bitmap CI doesn't control any IOVF data CI.
  But the validation logic doesn't consider about such condition.
  The logic at first calculated the number of entries in the
  bitmap CI and got zero, that is, no entry.
  Since DO loop uses exit out condition of the loop with UNTIL
  function, thus zero loop count was treated huge number of loop
  count and eventually locate out of buffer to locate some entry.
  
  The module FABADBCI has been modified to change from DO UNTIL=
  to DO WHILE= so that DO loop is not done in case of loop count
  zero.
  310Y
  FABADBCI
  

Temporary fix

Comments

APAR Information

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

  PK54813

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

  UK30521

Modules/Macros

•    FABADBCI
  

Fix information

• Fixed component name

  IMS HP FP UTILI

• Fixed component ID

  5655K9400

Applicable component levels

• R310 PSY UK30521

     UP07/10/24 P F710