PK07035: EYU0NQD5 LOOPS ON ABEND S0C1 RECOVERING FROM A PREVIOUS ABEND

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• After an original error, an LMAS loops getting:
  .
  EYUXL0900I   Starting Environment Recovery
  EYUXL0905E DHIPD639 ASRA IN NQD5, OFFSET ????????
      PSW=078D2000 80000002
  EYUXL0905E INTC=0001 ILC=2 TXCP=7F6B9000 SCODE=S00C1 TRAN=CONL
  EYUXL0905E Methods=NQD5,NQD2,NLRT,XLEV
  EYUXL0906I Registers at ABEND
  EYUXL0907I GPR0-GPR3  80000000  00000000  289C0304  00000000
  EYUXL0907I GPR4-GPR7  00000000  00000000  00000000  07850000
  EYUXL0907I GPR8-GPRB  80000000  00000000  000342F4  00000000
  EYUXL0907I GPRC-GPRF  00000000  00000000  00000000  00000000
  EYUXL0907I ARR0-ARR3  00000000  00000000  00000000  00000000
  EYUXL0907I ARR4-ARR7  01FF001E  01FF001E  00000000  00000000
  EYUXL0907I ARR8-ARRB  00000000  00000000  00000000  00000000
  EYUXL0907I ARRC-ARRF  00000000  00000000  00000000  00000000
  EYUXL0910I  EYU9XLRV Dump,CICDSPX0,CICDSPX0,DIPD,LMAS,CONL,
      0000022,ASRA,EYU0NQD5,31/05/2005 23:44:
  EYUXL0999I XLRV Exiting Successfully
  .
   When writting the dump information essages,
  EYU9XLRW is abending.  CPSM recovers from that,
  but due to a bad pointer for R13, it overlays some storage,
  which results in the S0C1 abends.
  .
  Additional keywords
  0C1 ABENDS0C1
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICSPlex/SM V3R1M0 Users                 *
  ****************************************************************
  * PROBLEM DESCRIPTION: When a abend occurs in a CMAS or MAS    *
  *                      that is handled by CPSM recovery, if a  *
  *                      subsequent abend occurs during the      *
  *                      recovery process in module EYU9XLRW,    *
  *                      the region may recursively abend until  *
  *                      terminated.                             *
  ****************************************************************
  * RECOMMENDATION: After applying the PTF that resolves this    *
  *                 APAR, all CMASes and MASes must be           *
  *                 restarted.  Note that the restarts do not    *
  *                 need to occur at the same time.              *
  ****************************************************************
  When an abend occurs in a CMAS or MAS, module EYU9XLRV gets
  control from CICS due to a HANDLE ABEND condition.  EYU9XLRV
  calls module EYU9XLRW to issue the abend diagnostic messages
  (e.g., EYUXL0900I, EYUXL0905E, EYUXL0906I, EYUXL0907I,
  EYUXL0908I, EYUXL0909I).  In order to display the storage where
  the abend occurred (messages EYUXL0908I and EYUXL0909I),
  EYU9XLRW must access the storage pointed to by the abend PSW.
  Since this area may be unaddressable, EYU9XLRW PUSHes the
  current HANDLE ABEND and creates a new one, pointing to a local
  recovery routine.  If the area pointed to by the abend PSW is
  unaddressable and an abend occurs when EYU9XLRW accesses this
  area, control is passed to the local recovery routine in
  EYU9XLRW, which assumes that the contents of the general
  registers are correct.  While that is true most of the time for
  most of the registers, it is possible that R13 is not correct.
  When this occurs, an overlay of region storage will most likely
  occur, which may result in recursive abends that will continue
  until the region is terminated.
  

Problem conclusion

• EYU9XLRW has been updated such that its local recovery routine
  ensures that R13 is restored correctly.
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

• When a abend occurs in a CMAS or MAS
  that is handled by CPSM recovery, if a
  subsequent abend occurs during the
  recovery process in module EYU9XLRW,
  the region may recursively abend until
  terminated.
  
  
  When an abend occurs in a CMAS or MAS, module EYU9XLRV gets
  control from CICS due to a HANDLE ABEND condition.  EYU9XLRV
  calls module EYU9XLRW to issue the abend diagnostic messages
  (e.g., EYUXL0900I, EYUXL0905E, EYUXL0906I, EYUXL0907I,
  EYUXL0908I, EYUXL0909I).  In order to display the storage where
  the abend occurred (messages EYUXL0908I and EYUXL0909I),
  EYU9XLRW must access the storage pointed to by the abend PSW.
  Since this area may be unaddressable, EYU9XLRW PUSHes the
  current HANDLE ABEND and creates a new one, pointing to a local
  recovery routine.  If the area pointed to by the abend PSW is
  unaddressable and an abend occurs when EYU9XLRW accesses this
  area, control is passed to the local recovery routine in
  EYU9XLRW, which assumes that the contents of the general
  registers are correct.  While that is true most of the time for
  most of the registers, it is possible that R13 is not correct.
  When this occurs, an overlay of region storage will most likely
  occur, which may result in recursive abends that will continue
  until the region is terminated.
  
  
  EYU9XLRW has been updated such that its local recovery routine
  ensures that R13 is restored correctly.
  

APAR Information

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

  PK07082

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

  UK04533

Modules/Macros

•    EYU9XLRW
  

Fix information

• Fixed component name

  CPSM CICS 3.1

• Fixed component ID

  5655M1501

Applicable component levels

• R100 PSY UK04533

     UP05/06/18 P F506

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.