PI59511: CACHE OF A PREVIOUS (DYNAMIC CALL BY LITERAL) CALLER IS WRONGLY ASSOCIATED WITH THE CURRENT CALL GIVING U4039

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• A dynamic call by literal uses a cache to keep information
  about the subprogram. In this case, the cache of a previous
  caller is wrongly associated with the current call, causing it
  to branch to the wrong subprogram, giving a U4039 abend. This
  wrong association happens due to a rare combination of the call
  literal address and the hash used to identify the cache.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of Enterprise COBOL V5 and later       *
  *                 compilers running batch programs that        *
  *                 contain dynamic call by literal statements   *
  *                 and CANCEL statements.                       *
  *                                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: Runtime ABEND: The COBOL library is     *
  *                      doing dynamic call to a COBOL           *
  *                      subprogram. The COBOL subprogram        *
  *                      ABENDs U4039 RC=0 U=0008 because the    *
  *                      COBOL library passes incorrect          *
  *                      parameter information to the            *
  *                      subprogram.                             *
  *                                                              *
  ****************************************************************
  * RECOMMENDATION: Apply the provided PTF.                      *
  ****************************************************************
  When doing dynamic call by literal, the COBOL library uses a
  cache to keep information about called programs. The purpose is
  to speed up subsequent calls to the same subprogram. Due to an
  error in accessing the cache, the cached information could be
  incorrect after a previous program cancel. As a result, wrong
  information about the entry point of the subprogram may be used
  in subsequent calls, leading to the ABEND. This affects only
  batch programs.
  

Problem conclusion

• The COBOL library code is fixed to access the dynamic call
  cache correctly.
  

Temporary fix

Comments

APAR Information

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

  PI59362

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

Modules/Macros

• IGZXBST1 IGZXBST2
  

Fix information

• Fixed component name

  LE ENT COBOL LI

• Fixed component ID

  568819812

Applicable component levels

• R780 PSY UI36468

     UP16/03/30 P F603

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.