PH55002: S5C6-00C510AF ABEND OCCURRED IN CSQEMULK

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• S5C6-00C510AF abend occurred in CSQEMULK because of gets by
  MsgToken (MQMO_MATCH_MSG_TOKEN) of browse-locked messages from
  shared queues. An earlier MQGET by MsgToken doesn't correctly
  clear the internal browse lock cursor in CSQEMGEK. This results
  in a later MQGET trying to locate an eTROP associated with the
  browse locked message. This eTROP isn't found, because it was
  deleted when the message was destructively got, and so an abend
  is issued.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of IBM MQ for z/OS Version 9       *
  *                 Release 2 Modification 0 and                 *
  *                 Release 3 Modification 0.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: When running an MQ application that     *
  *                      makes MQGET browse calls, it is         *
  *                      possible for an 5C6-00C510AF abend in   *
  *                      CSQEMULK to occur.                      *
  ****************************************************************
  The code which handles moving a browse locked TROP to the
  correct chain was not correctly updating the browse cursor.
  This caused a further MQGET to not correctly find the browse
  TROP chain, subsequently abending.
  

Problem conclusion

• The code has been changed to correctly update the browse cursor
  so the abend no longer occurs.
  

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:

  UI94340 UI94341

Modules/Macros

• CSQEMGEK
  

Fix information

• Fixed component name

  IBM MQ Z/OS V9

• Fixed component ID

  5655MQ900

Applicable component levels

• R200 PSY UI94341

     UP23/11/15 P F311

• R300 PSY UI94340

     UP23/11/15 P F311

Fix is available

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