PK07353: XZPT AICA LOOP XLST EXCEPTION TRACE POINTID 10 CAMR FAIL BAD MAL

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• CMAS loops during shutdown in method XZPT resulting in AICA
  abend.  The following messages are issued.
  .
  EYUXL0900I   Starting Environment Recovery
  EYUXL0905E applid AICA IN XZPT, OFFSET ????????
             PSW=00000000 80DD7948
  EYUXL0905E INTC=0000 ILC=0 TXCP=00000000 SCODE=S???? TRAN=XLST
             TASK=0000170
  EYUXL0905E Methods=XZPT,XLST,XLOP
  EYUXL0906I Registers at ABEND
  EYUXL0907I GPR0-GPR3  000007E0  1AE81080  1A4F59A1  00DC9F10
  EYUXL0907I GPR4-GPR7  00000000  00DC9620  00000090  00000000
  EYUXL0907I GPR8-GPRB  00DD815C  00DD7044  00000034  1AE7D388
  EYUXL0907I GPRC-GPRF  1AE7D080  8004EF98  80DD7948  80DD7948
  EYUXL0908I Storage At ABEND
  EYUXL0909I -20  01010101  01010101  01010101  01010101
  EYUXL0909I -10  01010101  01010101  01010101  01010101
  EYUXL0909I +00  D203B129  B1589140  B0C84780  992C58E0
  EYUXL0909I +10  C00C58EE  01C85800  99641AE0  BFEFE008
  EYUXL0910I  EYU9XLRV Dump,jobname
  ,applid,smfid,CMAS,XLST,0000170,
              AICA,EYU0XZPT,dd/mm/yyyy hh:mm:ss
  EYUXL0999I XLRV Exiting Successfully
  IEA794I SVC DUMP HAS CAPTURED:  468
  DUMPID=034 REQUESTED BY JOB (CICJCA3 )
  DUMP TITLE=EYU9XLRV Dump,jobname
  ,applid,smfid,CMAS,XLST,0000170,
             AICA,EYU0XZPT,dd/mm/yyyy hh:mm:ss
  .
  Method XLST branches to label EXCP_TRAC if the CAMR method
  call fails to write an exception trace.  At this time the MAL
  may have already been freed and should not be traced.
  .
  Additional Symptom(s) Search Keyword(s): XLSB EYURXLSB SA_STCB
  XLSP EYURXLSP STCB_XLSP LOCL_MAL_PFX MAL_CTMP_LEN R5 LENGTH
  MAL_CTMP_MPMAL R4
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICSPlex SM V3R1M0 Users.                *
  ****************************************************************
  * PROBLEM DESCRIPTION: An abend AICA may occur in method       *
  *                      EYU0XZPT (XZPT) during CMAS shutdown,   *
  *                      or when communications to another CMAS  *
  *                      is lost.                                *
  *                                                              *
  *                      Examination of the trace will show a    *
  *                      debug text of EXCEPTIO and a point ID   *
  *                      of 10. The calling method will be XLST. *
  ****************************************************************
  * RECOMMENDATION: After applying the PTF that resolves this    *
  *                 APAR, all CMASes must be recycled to pick    *
  *                 up the new code.  Note that the restarts     *
  *                 do not need to be done at the same time.     *
  ****************************************************************
  When a CMAS receives a Message Argument List (MAL) from another
  CMAS, EYU0XLST (XLST) is typically called to process the
  request.  Once completed, XLST calls EYU0CAMR (CAMR) to return
  the results of the request to the originating CMAS and release
  the MAL.  If the CAMR call fails, for example because
  communications to the originating CMAS is not available, XLST
  will call EYU0XZPT (XZPT) to create an exception trace entry.
  
  One of the parameters passed on the call from XLST to XZPT is
  the MAL. If CAMR released the MAL, residual storage may be used
  for the length of the MAL, causing a loop in XZPT if the length
  used is large.
  

Problem conclusion

• XLST has been changed so that the MAL is not traced if the CAMR
  call fails.
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

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

  PK07279

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

  UK06075

Modules/Macros

•    EYU0XLST
  

Fix information

• Fixed component name

  CPSM CICS 3.1

• Fixed component ID

  5655M1501

Applicable component levels

• R100 PSY UK06075

     UP05/08/11 P F508

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.