PI70486: DFHSM0002 APPLID A SEVERE ERROR (CODE X'4205') HAS OCCURRED IN MODULE DFHS2GF

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• You have a transaction that uses channel/container to transfer
  data.
  Your task issues a GET CONTAINER INTO command with
  BYTEOFFSET(0) specified. The BYTEOFFSET parm results in a piece
  of PGCRSET2 storage to be getmained by CICS and released when
  the task ends.
  The task issues a RETURN TRANSID CHANNEL before terminating.
  This means that the channel and its containers are detached
  from the terminating task, and bound to the new task. The new
  task then tries to freemain the PGCRSET2 storage again which
  results in the DFHSM0002 severe error (code X'4205') in
  DFHS2GF.
  .
  SM 4201 S2GF  ENTRY - FREEMAIN ADDRESS(000000**_********)
  
          FREE_LENGTH(****) REMARK(PGCRSET2)
  STORAGE_CLASS(TASK64)
  SM 4205 S2GF  *EXC* - Invalid_freemain_address - FREEMAIN
  
          ADDRESS(000000**_********) FREE_LENGTH(****)
  .
  This may also followed by a DFHPG0002 severe error (code
  X'190A') in DFHPGCR.
  Additional Symptom(s) Search Keyword(s): KIXREVxxx DFHSM0002
  SM0002 X'4205' 4205 DFHS2GF PGCRSET2 channel container
  BYTEOFFSET GET CONTAINER INTO DFHPG0002 PG0002 X'190A' 190A
  DFHPGCR.
  

Local fix

• Remove the BYTEOFFSET(0) operand from the GET CONTAINER command
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: An attempt to delete a container        *
  *                      results in message DFHSM0002 applid A   *
  *                      severe error (code X'4205') has         *
  *                      occurred in module DFHS2GF.             *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  A task issues a GET CONTAINER request, specifying the BYTEOFFSET
  parameter. This causes CICS to issue a GETMAIN for PGCRSET2
  storage, which is anchored to the container.
  The task ends with a pseudoconversational return, passing the
  channel to the next task. The PGCRSET2 storage is TASK64
  storage, so this is released. A reference to it is retained in
  the container control block (crcb_offset_stg_address).
  The new task runs, and issues a DELETE CONTAINER request to
  delete the container. This could be either an explicit EXEC CICS
  DELETE CONTAINER request, or could occur during task
  termination. The delete container processing sees that there is
  an address in crcb_offset_stg_address, and so attempts to issue
  a freemain for the offset storage.
  .
  CICS produces exception trace entry
  SM 4205 S2GF *EXC* Invalid_freemain_address
  and issues message
  +DFHSM0002 applid A severe error (code X'4205') has occurred in
  module DFHS2GF.
  followed by
  +DFHPG0002 applid A severe error (code X'190A') has occurred in
  module DFHPGCR.
  .
  Additional Keywords: SM0002 msgDFHSM0002 PG0002 msgDFHPG0002
  AEXZ abendAEXZ
  

Problem conclusion

• DFHPGCH has been updated so that delete container requests will
  clear the offset storage address from the CRCB.
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

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

  PI60220

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

  UI42711

Modules/Macros

• DFHPGCH
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R800 PSY UI42711

     UP16/11/23 P F611

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.