PI25134: ABN=0C4-00000011,C=R3600.710.IFC -CSQWTRC,M=CSQGFRCV,LOC=CSQWVCOL.CSQWVCOL+000007DE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• ABN=0C4-00000011,C=R3600.710.IFC
  -CSQWTRC,M=CSQGFRCV,LOC=CSQWVCOL.CSQWVCOL+000007DE
   0C4 abends in CSQWVCOL: these are linked to ERQE blocks that
  are created in CSQESEX for CF structure events, and then
  queued for structure tasks to be processed. In some conditions,
  the entire ERQE block is traced at the exit of CSQESEX. In
  this instance, CSQESEX was delayed after queueing the ERQE
  element, and the structure task had processed and freed it,
  causing the 0C4 when CSQESEX attempted to trace it.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 7 *
  *                 Release 1 Modification 0.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: Following a storage shortage an 0C4     *
  *                      abend occurs in the queue manager       *
  *                      address space, in CSQWVCOL.             *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  A CF structure event was driven in the queue manager, calling
  CSQESEX, which allocates and schedules an ERQE for the
  appropriate structure task.
  Following a queue manager storage shortage the previously
  processed ERQE is freed such that on exit CSQESEX is not able
  to trace it, resulting in an 0C4 when GTF trace is active.
  

Problem conclusion

• Code has been changed to prevent an 0C4 occurring.
  
  100Y
  CSQESEX
  

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:

  PI31009 UI24181

Modules/Macros

• CSQESEX
  

Fix information

• Fixed component name

  WMQ Z/OS V7

• Fixed component ID

  5655R3600

Applicable component levels

• R100 PSY UI24181

     UP15/02/04 P F502

Fix is available

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