PK78699: CUSTOMER IS RECEIVING A DFHSM0001 ABEND CODE 0C4/AKEA IN DFHS2SR

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• The dump showed the reason why the 0C4 occured in DFHS2SR is
  due to not enough space is available to complete the
  COPY_BELOW_BAR_TO_ABOVE. CICS is attempting a PUT_CONTAINER for
  DFHRESPONSE at an above the bar address for a length of X'14'.
  This goes pass the length in which was getmained but due to this
  occuring on a page boundary and the next page not being
  allocated the abend 0C4 occurs.
  .
  Additional KEYWORDS: DFHS2SR X'0604' 0604 DFHSM0001 SM0001 0C4
  COPY_BELOW_BAR_TO_ABOVE
  KIXREVSCB
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: Abend 0C4 in DFHS2SR in function        *
  *                      COPY_BELOW_BAR_TO_ABOVE.                *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When DFHS2SR is handling a PUT_CONTAINER request with a type of
  APPEND, it will attempt to use free space at the end of the
  current container buffer if there is room for the data. The
  calculation of the amount of free space is incorrect in that it
  does not take into account that there is a 4-byte reserved area
  at the beginning of the container buffer area, and this may
  result in an attempt to move up to 4 bytes past the end of the
  buffer in the COPY_BELOW_BAR_TO_ABOVE function.
  
  This will result in a S0C4 abend if the area of storage that
  follows the buffer has not been allocated.
  
  Additional keywords: abendAKEA abend0C4 abendS0C4 msgDFHSM0001
  

Problem conclusion

• DFHPGCR has been changed to factor in the size of the 4-byte
  reserved area at the beginning of the buffer area when it
  performs a PUT_CONTAINER APPEND request using an existing
  buffer.
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

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

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

  UK44793

Modules/Macros

•    DESPGCR  DFHPGCR
  

Fix information

• Fixed component name

  CICSTS V3 Z/OS

• Fixed component ID

  5655M1500

Applicable component levels

• R500 PSY UK44793

     UP09/03/17 P F903

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.