PI63724: COBOL EXCEPTION IN IGZSTOR (FREESTG) ROUTINE AFTER REWRITE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Enterprise COBOL V5 program receives exception in IGZSTOR
  (freestg) when doing a MOVE after a REWRITE. REWRITE
  incorrectly stores R1 as pointer to record buffer cell.
  Exception in freestg at offset x'7E' due to an incorrect
  address in reg4.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Enterprise COBOL V5+ users compiling and     *
  *                 running programs that contain QSAM files     *
  *                 OPENed as I-O and use the REWRITE statement  *
  *                 on such files.                               *
  *                                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: Runtime ABEND 0C4: If after the         *
  *                      REWRITE, without another READ, the      *
  *                      program MOVE data into the FD 01        *
  *                      record, the DCB related to the file     *
  *                      would be corrupted.  This corruption    *
  *                      may not be detected until the file is   *
  *                      CLOSEd and the memory for the control   *
  *                      blocks are released at program          *
  *                      termination, where there may be an 0C4  *
  *                      ABEND in the storage management         *
  *                      routines.                               *
  *                                                              *
  ****************************************************************
  * RECOMMENDATION: Apply the provided PTF.                      *
  *                                                              *
  ****************************************************************
  The memory corruption after REWRITE verb has been corrected.
  

Problem conclusion

• The memory corruption after the REWRITE affect only the file's
  control block.  User data is not corrupted.  However, because
  the file's control block is corrupted, it's possible that
  further I/O to the file after the REWRITE verb would fail. The
  corruption has been fixed.
  

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:

  PI65438

Modules/Macros

• IGZXBST2
  

Fix information

• Fixed component name

  LE ENT COBOL LI

• Fixed component ID

  568819812

Applicable component levels

• R7A0 PSY

     UP

• R780 PSY UI38926

     UP16/06/29 P F606

• R790 PSY

     UP

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.