PK52313: FPA RELOAD COMMAND WITH LOADCTL LOCATION=DOVF INCORRECTLY LOADS AN AREA CAUSING ANALYZE TO GET A POINTER ERROR

APAR status

• Closed as program error.

Error description

• FPA RELOAD command with a LOADCTL LOCATION=DOVF subcommand
  incorrectly loads an area. The subsequent ANALYZE process gets
  a pointer error message of HFPA0003E.
  .
  Keywords: HFPA0003E MSGHFPA0003E
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of High Performance Fast Path      *
  *                 Advanced Tool Version 3 Release 1.           *
  *                 (FMID: H31A310)                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: FPA RELOAD command with a LOADCTL       *
  *                      LOCATION=DOVF subcommand incorrectly    *
  *                      loads an area.                          *
  *                      The subsequent ANALYZE process gets a   *
  *                      pointer error message of HFPA0003E.     *
  ****************************************************************
  * RECOMMENDATION: Apply the maintenance for this APAR.         *
  ****************************************************************
  FPA RELOAD command with a LOADCTL LOCATION=DOVF subcommand
  incorrectly loads an area. The subsequent ANALYZE process gets
  a pointer error message of HFPA0003E.
  This is due to insert LOADCTL target segment incorrectly into
  the last DOVF CI which is already treated as full and made a
  FSE for the remaining empty space.
  

Problem conclusion

• When preceding segment was tried to insert into the last DOVF
  CI, there was no enough remaining space. So, the CI was treated
  as full CI and made FSE for the remaining space, increment the
  current DOVF CI number to indicate all DOVF CIs were consumed,
  and the segment was inserted into IOVF CI.
  After that, another segment which was the candidate of LOADCTL
  subcommand and it was treated to insert into DOVF part due to
  LOCATION=DOVF specification.
  A thing is that the logic to insert LOADCTL candidate segment
  doesn't consider about the current DOVF CI #. The logic to
  insert a segment into DOVF CI at first checks the remaining
  space of the current DOVF CI. Unfortunately it still indicate
  the value of the last DOVF CI and the remaining space was
  enough to accept the segment. Thus the segment was inserted
  into the space on the top of the space there was already FSE.
  The length part of the FSE is treated as PTF value of the
  segment. Thus, the PTF was assumed to have invalid value by
  the ANALYZE function.
  
  HFPKSEG0 has been modified to check the current DOVF CI number
  before inserting the candidate segment of LOADCTL LOCATION=DOVF.
  If the current DOVF CI number is already over the Max DOVF CI
  number, then the segment is changed into insert IOVF.
  310Y
  HFPKSEG0
  

Temporary fix

Comments

APAR Information

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

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

  UK30071

Modules/Macros

•    HFPKSEG0
  

Fix information

• Fixed component name

  IMS HP FP UTILI

• Fixed component ID

  5655K9400

Applicable component levels

• R310 PSY UK30071

     UP07/10/11 P F710