PI90036: ENF SIGNALLING STORAGE LEAK MSGDSNV508I DSNV508I ACAE AUTHEXIT

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• DSNV508I DSNVMON - DB2 DBM1 BELOW THE BAR STORAGE
  ENF79 signal causing storage leaks
  Subpool 230 Key 7 / SP230K7
  
  The reported case is only for External Exit usage, example: RACF
  Access Control Module.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All Db2 V11 and V12 for z/OS users of                        *
  * Access Control Authorization Exit                            *
  * (DSNX@XAC) and set the system                                *
  * parameter AUTHEXIT_CACHEREFRESH                              *
  * to ALL.                                                      *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * DSNV508I DSNVMON - Db2 DBM1 BELOW THE                        *
  * BAR STORAGE alert message was issued                         *
  * when AUTHEXIT_CACHEREFRESH system                            *
  * parameter is set to ALL                                      *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply corrective PTF when available.                         *
  ****************************************************************
  RACF sends an ENF 79 signal when the PERMIT, RDEFINE, RALTER,
  or RDELETE command is issued in RACF. Db2 only processes the
  ENF 79 notification for the following RACF command options:
  PERMIT with ACCESS(NONE), DELETE or RESET
  RALTER with UACC(NONE) or DELMEM
  RDELETE with any options
  The storage obtained to process the ENF 79 signal was not
  freed correctly for other RACF PERMIT, RDEFINE or RALTER
  options specified. This resulted in a storage leak
  in the DBM1 address space.
  

Problem conclusion

• Db2 code has been changed to free the storage correctly in the
  above scenario.
  
  Keywords:
  DB2STGLK/K
  

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:

  UI54018 UI54021

Modules/Macros

• DSNXAE79
  

Fix information

• Fixed component name

  DB2 OS/390 & Z/

• Fixed component ID

  5740XYR00

Applicable component levels

• RC10 PSY UI54018

     UP18/03/10 P F803

• RB10 PSY UI54021

     UP18/03/10 P F803

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.