PI44028: EYUXL0905E ABEND ASRB IN WMWS OR WMAM IN CMAS DURING WLM INITIALISATION.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• CPSM CMAS 5.1 suffers abends during startup during WLM
  initialisation and transactions are then not routed as expected.
  CMAS message log shows:
  EYUXL0900I   Starting Environment Recovery
  EYUXL0905E,CMASaaaa,ASRB IN WMAM, OFFSET 000002BE PSW=07855000
  B486773E
  EYUXL0905E INTC=0029 ILC=6 TXCP=3AF9D801 SCODE=S00E0 TRAN=WMGR
  or
  EYUXL0905E CMASaaaa ASRB IN WMWS, OFFSET 000004E6 PSW=07855000
  B48BF71E
  EYUXL0905E INTC=0029 ILC=4 TXCP=004D0401 SCODE=S00E0 TRAN=XLEV
  .
  EYUWI0010E KISD51D3 WLM Initialization Failed.
  .
  Once this problem is encountered it recurrs on each attempt
  to restart the CMAS.
  EYU0WMWS (base 510) + 4E2 on suffers pic 29 on SAC 512
  instruction.
  

Local fix

• Removing all active connections to the CMAS on this LPAR
  (e.g COSH on MAS) and then restarting CMAS will cause WLM data
  space to be recreated and this allows CMAS/ WLM to restart ok.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICSPlex SM V4R1M0 and V4R2M0 Users      *
  ****************************************************************
  * PROBLEM DESCRIPTION: Various errors can occur when a target  *
  *                      region is added to or removed from a    *
  *                      workload by adding or removing the      *
  *                      CSYSDEF for the target region from a    *
  *                      CICS system group (CSYSGRP) which is    *
  *                      either the AORSCOPE for the WLMSPEC for *
  *                      the workload or a WLMDEF associated     *
  *                      with the workload, or is a member of a  *
  *                      CSYSGRP that is the AORSCOPE.           *
  *                                                              *
  *                      Errors seen include, but are no limited *
  *                      to:                                     *
  *                                                              *
  *                      -  overlays of the WLM data cache.      *
  *                                                              *
  *                      -  abend ASRB/S0E0 in method EYU0WMWS   *
  *                         (WMWS) or EYU0WMAM (WMAM) during     *
  *                         CMAS initialization.  This abend     *
  *                         will cause WLM initialization to     *
  *                         fail, and its services will not be   *
  *                         available for the lifetime of the    *
  *                         CMAS.                                *
  *                                                              *
  *                         Note that if this abend occurs, then *
  *                         it will occur everytime the CMAS is  *
  *                         restarted until a CPSM CMAS cold     *
  *                         start occurs                         *
  *                                                              *
  *                         A CPSM CMAS cold start is defined as *
  *                         a start of a CMAS while no MASes or  *
  *                         batch API programs that were         *
  *                         connected to it when it was last     *
  *                         active, are currently active.  The   *
  *                         CICS START SIT parameter has no      *
  *                         affect on this.                      *
  *                                                              *
  *                      -  a target region will be marked as    *
  *                         inactive for optimization when it    *
  *                         should be active.                    *
  *                                                              *
  *                      -  routing decisions made by CPSM WLM   *
  *                         routing regions may be incorrect.    *
  ****************************************************************
  * RECOMMENDATION: After applying the PTF that resolves this    *
  *                 APAR, all CMASes 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.                                        *
  ****************************************************************
  When a target region is added to the AORSCOPE of a workload
  by adding its CSYSDEF to a CSYSGRP, then method EYU0WMAA
  (WMAA) is called.  As part of its processing, WMAA updates
  the AOR descriptor, EYURWAOR, for the target region.  One
  value in the EYURWAOR that is updated is the name of the
  CMAS to which the target region is connected.  This is
  used during routing decision processing and also when a
  target region is removed from a workload to determine
  processing paths.  A logic error in WMAA may cause it to set
  the connected CMAS name in the EYURWAOR to nulls, which can
  result in several problems, for example, incorrect routing
  decisions, etc.
  
  When a target region is removed from the AORSCOPE of a workload
  by removing its CSYSDEF from a CSYSGRP, then method EYU0WMAT
  (WMAT) is called.  During exit processing, WMAT resets the
  optimization flag for the target region to inactive.
  Additionally, if the target region is connected to another CMAS,
  then it will free the WLM data cache region status block
  associated with the target region.  If the target region is
  still a target region for another workload, then invalid
  processing can occur.
  

Problem conclusion

• WMAA has been updated to ensure that the connected CMAS name
  in the EYURWAOR is always set correctly when called.
  
  WMAT has been updated to reset a target region's optimization
  flag and free its region status block only if the target region
  is being removed as a target region from all workloads or is
  being terminated.
  

Temporary fix

•             *********
              * HIPER *
              *********
  FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

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

  PI43487

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

  UI30524 UI30525

Modules/Macros

• EYU0WMAA EYU0WMAT
  

Fix information

• Fixed component name

  CICS TS Z/OS V4

• Fixed component ID

  5655S9700

Applicable component levels

• R60M PSY UI30524

     UP15/08/28 P F508 ½

• R70M PSY UI30525

     UP15/08/28 P F508 ½

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.