PI71396: ABEND S0C4 ASRA IN CPSM METHOD WNAL WITH CPSM WLM LEVEL 19 TRACE AND GOAL OR LNGOAL ALGORITHM

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• You are using CPSM Workload Management WLM to manage routing in
  your CICSPlex. Your workload is setup to use the GOAL or LNGOAL
  algorithm. Under the direction of IBM Service, you turn on WLM
  trace level 19. You then find an abend in CPSM method WNAL. In
  the job log for the routing region where this WLM Level 19
  trace was turned on, you see messages similar to the following:
  .
  DFHDU0205 <applid> A SYSTEM DUMP FOR DUMPCODE: AP0001  , WAS
                     SUPPRESSED BY THE XDUREQ USER EXIT
  EYUXL0900I   Starting Environment Recovery
  EYUXL0905E <applid> ASRA IN WNAL, OFFSET 00000A3E
                      PSW=07856000 98D12CCE
  EYUXL0905E INTC=0010 ILC=6 TXCP=7F1D2001 SCODE=S00C4 TRAN=ABCD
                       TASK=0012345
  EYUXL0905E Methods=WNAL,WASV,WDTR,XLOP
  .
  An SVC dump is produced.
  .
  .
  Additional Symptom(s) Search Keyword(s): KIXREVSVR
  

Local fix

• Do not turn CPSM WLM Level 19 trace on when using GOAL or LNGOAL
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All CICSPlex SM V5R3M0 users                                 *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * When using CPSM Workload Manager to control your dynamic     *
  * routing environment, and are routing dynamic transactions    *
  * using the GOAL or LNGOAL routing algorithms, and WLM Trace   *
  * level 19 has been activated, then an ASRA abend is reported  *
  * in module EYU0WNAL.                                          *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * After applying the PTF that resolves this APAR, all MASes    *
  * acting as WLM routing regions (TORs) must be recycled to     *
  * pick up the new code.  Note that regions do not need to be   *
  * brought down and restarted at the same time.                 *
  ****************************************************************
  During execution of the dynamic routing algorithm processor
  (EYU0WNAL), details of the state of each target AOR are held in
  a chain of AOR work element blocks (WAOWs). These blocks are
  constructed in the WLM dataspace, and so require an Alet and an
  Offset to locate each WAOW element. During WAOW data collection,
  Access Register 15 (AR15) is used to locate the first WAOW for
  each new CEC/Sysplex. When addressability to that WAOW is no
  longer required, then General Register 15 (GR15) is cleared but
  but the Alet value in Access Register 15 is not. This residual
  value has no ill effects, until WLM trace level 19 is activated
  and the routing algothm being used is GOAL or LNGOAL. When that
  happens, an attempt to trace out the "GOAL System Group Class
  Block" (WSGC) results in an ASRA abend, because the value held
  in the Alet-to-offset table is located from the address in GR15,
  but the residual ALET value in AR15 causes a mis-location of the
  required conversion table entry.
  

Problem conclusion

• When addressability to the first WAOW element is no longer
  required, then the ALET reference for the WAOR is cleared out of
  Access Register 15.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  PI71334

• APAR is sysrouted TO one or more of the following:

  UI42717

Modules/Macros

• CJA0WNAL CJB0WNAL CJC0WNAL CJD0WNAL CJE0WNAL CJF0WNAL EYU0WNAL
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R00M PSY UI42717

     UP16/12/02 P F612

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.