PM44581: DB2 SVC DUMP ABENDS0C4 DSNLZLLM DSNLZS01

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• An entry placed on the current linkage stack by CQM that the DB2
  FRR is unaware of can prevent DB2 recovery from an ABEND0C4
  occurring in DB2 module DSNXORHV at offset X19BC (PTF LVL
  UK39713). Since the linkage stack level is off by one, this can
  result in a subsequent S0C4 ABEND in Db2 module DSNGESLC.
  
  This problem only occurs if there is an ABEND in DB2 during the
  DSNXEDSC - dynamic statement cache - is called and completes.
  
  This APAR will remove the requirement to keep the CQM linkage
  entry across the DSNXEDSC process
  

Local fix

• Add parameter DISABLE_TED_HOOK(Y) to CQMPARMS (recycle the
  collector to pick up the new parameter).
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of DB2 Query Monitor.                  *
  ****************************************************************
  * PROBLEM DESCRIPTION: An entry placed on the current linkage  *
  *                      stack by CQM that the DB2 FRR is        *
  *                      unaware of can prevent DB2 recovery     *
  *                      from an ABEND0C4 occurring in DB2       *
  *                      module DSNXORHV at offset X19BC (PTF    *
  *                      LVL UK39713). Since the linkage stack   *
  *                      level is off by one, this can result    *
  *                      in a subsequent S0C4 ABEND in Db2       *
  *                      module DSNGESLC. This problem only      *
  *                      occurs if there is an ABEND in DB2      *
  *                      during the DSNXEDSC - dynamic           *
  *                      statement cache - is called and         *
  *                      completes. This APAR will remove the    *
  *                      requirement to keep the CQM linkage     *
  *                      entry across the DSNXEDSC process.      *
  ****************************************************************
  * RECOMMENDATION: APPLY the PTF.                               *
  ****************************************************************
  Code has been changed to correct this condition.
  

Problem conclusion

• APPLY the PTF.
  

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:

  UK73465

Modules/Macros

•    CQMTEDA1 CQMTED81 CQMTED91 CQMTXLA1 CQMTXL81
  CQMTXL91
  

Fix information

• Fixed component name

  DB2 QUERY MONIT

• Fixed component ID

  5655E6701

Applicable component levels

• R310 PSY UK73465

     UP11/11/10 P F111

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.