OW54126: ABEND0C4 IN ISTSLU7F +X'6D6' BAD RUPE POINTER

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Abend0c4 in ISTSLU7F at x'6d6'
  This was caused by  a bad RUPE Pointer that came from ISTSLSYR.
  SITCB RUPE_POINTER is zeros. This caused R6 to be an invalid
  address, which caused the abend0C4
  attempting to Load halfword from the invalid address in R6.
  SAVE AREA CHAIN (STARTING WITH SAVE AREA AT 134391A0):
  SLCRT -> SLRDP -> SLUFR -> SLUAS -> SLSYR -> SLUIF -> SLU7F
  CURRENT SAVE AREA = SLU7F
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All network nodes.                           *
  ****************************************************************
  * PROBLEM DESCRIPTION: ABEND0C4 in ISTSLU7F +X'6D6' with       *
  *                      null RUPE pointer.                      *
  *                      The ABEND could occur in other          *
  *                      modules with the null RUPE pointer.     *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  This problem was caused by ISTSLSYR issuing a FFST probe
  without a RUPE pointer.  During searching for a cross subnet
  DLUR, SSL created a child SITCB to search for the DLUR TGVs.
  When the search completed, ISTSLUAS transferred the DLU
  information from the child SITCB to the parent SITCB and
  drove the parent SITCB FSM.  But the pointer to the
  current RUPE was not transferred.  During the processing
  of the parent SITCB, a FFST probe was attempted without the
  RUPE pointer and the ABEND occurred.
  

Problem conclusion

• This problem was fixed in ISTSLUAS by transferring the RUPE
  pointer to the parent before driving the parent SITCB.
  

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:

  UW88224 UW88225 UW88226 OW55200 DY45992 VM63199

Modules/Macros

• ISTSLUAS
  

Fix information

• Fixed component name

  VTAM V4 MVS/ESA

• Fixed component ID

  569511701

Applicable component levels

• R10A PSY UW88225

     UP02/05/11 P F205

• R120 PSY UW88224

     UP02/05/11 P F205

• R801 PSY UW88226

     UP02/05/11 P F205

Fix is available

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