PM82546: WITH PK70512 APPLIED, DELETING A TYPE-2 LARGE LOGICAL RECORD (LLR) CAN RESULT IN LOST ADDRESSES

APAR status

• Closed as program error.

Error description

• See Problem Summary.
  

Local fix

• na
  

Problem summary

• APAR NUMBER:  PM82546
  PRODUCT:  z/TPFDF
  FUNCTIONAL AREA:  TPFDF CENTRAL DATABASE ROUTINES
  SHIPPED IN PUT:  10
  
  ABSTRACT:
  With PK70512 applied, deleting a type-2 large logical record
  (LLR) can result in lost addresses.
  
  PACKAGE CONTENTS:
  Source Segments:
  (C) tpfdf/rt/ufka03.cpp
  
  Object Only Binaries:
  None.
  
  Configuration Independent Binaries:
  None.
  
  Support Files:
  None.
  
  OTHER BINARIES TO BUILD: YES
  (C) <sys>/obj/ufka03.o
  (C) <sys>/load/UFKA.so
  
  COMMENTS:
  When a large logical record (LLR) is deleted, the LLR release
  processing creates a child ECB with a copy of the large LREC
  interface block (LLIB) containing the large LREC data block
  (LLDB) addresses to release. The LLIB copy is erroneously set
  up with the length of the blocktype value L4 (0x51) instead of
  the correct 4K blocksize (_GBSZE, defined as 4095). All LLDB
  references in the core block starting at displacement 0x52 up
  to the end of the block are then not released and will show up
  as lost addresses in recoup.
  

Problem conclusion

• SOLUTION:
  In segment ufka03.cpp, the correct length equate (_GBSZE) is
  used to copy the full content of the LLIB core block (list of
  LLDBs to be released).
  
  COREQS: NO
  None.
  
  MIGRATION CONSIDERATIONS: NO
  None.
  
  BUILD COMMANDS AND INSTRUCTIONS: YES
  #maketpf commands for linux
  maketpf -f UFKA ufka03.o
  maketpf UFKA link
  
  UPDATED INFORMATION UNITS: NO
  None.
  
  See your IBM representative if you need additional information.
  
  DOWNLOAD INSTRUCTIONS:
  http://www.ibm.com/software/htp/tpf/maint/maintztpf.html
  
  APAR URL:
  http://www.ibm.com/software/htp/tpf/ztpfmaint/put10/PM82546.htm
  

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:

Fix information

• Fixed component name

  ZTPFDF

• Fixed component ID

  5748F1501

Applicable component levels

• R110 PSY

     UP