PK19422: FPB RELOAD (FABCUR3) RELOADS SDEP=LOGICAL SEGMENTS INCORRECTLY.

APAR status

• Closed as program error.

Error description

• FPB Reload ( FABCUR3 ) reloads SDEP=LOGICAL segments
  incorrectly when multiple areas are reloaded from
  an unloaded segment records file which contains
  segment records of multiple areas.
  The first area is reloaded correctly but SDEP segments
  of succeeding areas will be reloaded incorrectly.
  
  This is a forward fit of FPB V2.1 APAR PK19384 (FPB V1.2
  APAR PK18848).
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All DEDB Unload/Reload users of High         *
  *                 Performance Fast Path Utilities FP Basic     *
  *                 Tools Version 2 Release 2 (FMID: H31A220).   *
  ****************************************************************
  * PROBLEM DESCRIPTION: Forward Fit APAR of FPB V1R2 PK18848:   *
  *                      1. FPB Reload ( FABCUR3 ) reloads       *
  *                         SDEP=LOGICAL segments incorrectly.   *
  *                      2. FPB Reload processing fails          *
  *                         with LOADCTL= option.                *
  ****************************************************************
  * RECOMMENDATION: Apply the maintenance for this APAR.         *
  ****************************************************************
  Forward Fit APAR of FPB V1R2 PK18848:
  1. FPB Reload reloads SDEP=LOGICAL segments incorrectly
     when multiple areas are reloaded from an unloaded segment
     records file (USR file) contains segment records of
     multiple areas.
     The first area is reloaded correctly but SDEP segments
     of succeeding areas will be reloaded incorrectly.
  
  2. FPB Reload processing fails when it reloads
     from the USR file produced by FABCUR1 ( Unload )
     which had a return code 04 due to specifying a ROOT segment
     or a SDEP segment in LOADCTL= control statement.
  

Problem conclusion

• 1. APAR PK14867 (UK09542) supported an Area Information Record
     (A.I.R.) suppression. Due to this APAR, multiple area reload
     with SDEP=LOGICAL option from a USR file causes a incorrect
     reload processing.
     The module FABC3ARE uses a field of A.I.R. when Reload
     determines whether A.I.R. indicates SDEP=LOGICAL or not.
     But because the base register of the USR file is already
     relocated by the root key length to access fields succeeding
     the root key field, FABCUR3 checks incorrect offset for
     the SDEP= option field. Thus, FABCUR3 cannot reload the SDEP
     segments correctly.
  
     FABCUR3 has been modified to add a length of ROOT segment key
     to a base register of the USR file in the USR file read
     sub-routine.
     FABC3ARE has been modified not to use directly the field of
     A.I.R in buffer but to use its save area.
     FABC3UOW and FABC3END have been modified not to add a length
     of ROOT segment key to a base register of the USR file.
  
  2. FPB V2R2 base code succeeds FPB V2R1 APAR PQ96893 (UQ95203)
     to support LOADCTL=(segname,0) and LOADPLACE=RAP|DOVF|IOVF
     control statements.
     FABCUR1 produces a incorrect USR file when specifies ROOT
     segment or SDEP segment in LOADCTL= control statement.
  
  FABC1INI has been modified to force change the ILC count of
  ROOT segment and SDEP segment from 0 to H-word value =H'32767'
  to ignore LOADCTL process for these two segments.
  220Y
  FABCUR3
  FABC1INI
  FABC3ARE
  FABC3END
  FABC3UOW
  UR3WRK10
  

Temporary fix

Comments

APAR Information

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

  PK19384

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

  UK11998

Modules/Macros

•    FABCUR3  FABC1INI FABC3ARE FABC3END FABC3UOW
  UR3WRK10
  

Fix information

• Fixed component name

  IMS HP FP UTILI

• Fixed component ID

  5655K9400

Applicable component levels

• R220 PSY UK11998

     UP06/02/23 P F602