PI70890: MQ V9: 0C4-00000004 AFTER SET CHLAUTH ACTION(REMOVE) COMMAND

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• After using SET CHLAUTH...ACTION(REMOVE) CMDSCOPE(*) command
  the following abend occured:
  ABN=0C4-00000004,U=STCMQS  ,C=MQ900.900.MMC -CSQMSCA
      ,M=CSQGFRCV,LOC =CSQTOPLM.CMQXRSCF+00011C7A
  
  Afterwards command server was unresponsive.
  

Local fix

• n/a
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All users of IBM MQ for z/OS Version 9 Release 0             *
  * Modification 0.                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * Incorrect configuration event messages are written, and/or   *
  * abend 0C4 occurs when issuing SET CHLAUTH(x) TYPE(BLOCKUSER) *
  * to create or delete chlauth rules when the USERLIST          *
  * parameter contains multiple userids.                         *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * None                                                         *
  ****************************************************************
  When issuing the SET CHLAUTH(x) TYPE(BLOCKUSER) command,
  rsiAddUserBlockList and rsiRemoveUserBlockList are called to
  add/remove control blocks for each specified userid. If
  configuration events are enabled, the code responsible for
  generating event messages recording the commands does not
  correctly account for multiple users being specified.
  In the case of rsiAddUserBlockList this results in configuration
  event messages with Reason=MQRC_CONFIG_CHANGE_OBJECT with
  incorrect values in the MQCACH_MCA_USER_ID_LIST parameter being
  written when a new rule is created, instead of a message with
  Reason=MQRC_CONFIG_CREATE_OBJECT.
  In the case of rsiRemoveUserBlockList, an attempt is made to
  write event messages with Reason=MQRC_CONFIG_CHANGE_OBJECT
  instead of the expected event message with
  Reason=MQRC_CONFIG_DELETE_OBJECT, however an invalid memory
  reference results in the command abending S0C4.
  

Problem conclusion

• rsiAddUserBlockList and rsiRemoveUserBLockList are changed to
  correctly generate event messages whene creating/deleting rules
  with multiple users specified in the USERLIST paramater.
  

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:

  UI44304

Modules/Macros

• CMQXRSCF
  

Fix information

• Fixed component name

  MQ Z/OS V9

• Fixed component ID

  5655MQ900

Applicable component levels

• R000 PSY UI44304

     UP17/02/08 P F702

Fix is available

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