PH10066: DFHSM0002 0305 DFHSMGF DOUBLE FREEMAIN OF PROGRAM_LISTFREE STORAGE 19/10/18 PTF PECHANGE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Running CICS TS 5.2 you experience the following error message:
  
  DFHSM0002 A severe error (code X'0305') has occurred in
                         module DFHSMGF
  
  Here is the exception trace entry from the dump:
  SM 0305 SMGF  *EXC* - Invalid_freemain_address -
                               FUNCTION(FREEMAIN)
                               ADDRESS(addr) STORAGE_CLASS(CICS)
  
  Searching on the addresss in trace, you can see it getmained
  by DFHPISN and also first freemained by DFHPISN.
  Then this  freed address is referenced in the following
  trace entry:
  
  PI 0C81 PISH  EXIT  RECEIVE-RESPONSE
                PROGRAM_LIST_PTR(addr)  <---
                HEADER_PROGRAM_RESPONSE(1)
                RESPONSE(1) REASON(0)
  
  DFHPISN then tries to freemain this same addr, causing the
  DFHSM0002 error
  
  Additional Symptom(s) Search Keyword(s): KIXREVDAM
  PROGRAM_LIST
  This problem is possibly related to APAR PI87928.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS Users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: A program that issues a web services    *
  *                      request abends SM0002 due to severe     *
  *                      error (code X'0305') in module DFHSMGF. *
  ****************************************************************
  A requester PIPELINE with 12 or more SOAP header handlers is
  installed in CICS.  A program issues an EXEC CICS INVOKE
  WEBSERVICE command that specifies this PIPELINE.
  The SEND-REQUEST phase of the PIPELINE works correctly, and it
  creates a PROGRAM_LIST structure for the SOAP header handlers
  which after calling them it then freemains.
  
  When a response is received, and the RECEIVE-RESPONSE phase of
  the PIPELINE runs it also creates a PROGRAM_LIST structure for
  the SOAP header handlers.  Since there are 12 or more SOAP
  header handlers a larger PROGRAM_LIST is getmained and the
  initial PROGRAM_LIST is freemained.
  However, although the RECEIVE-RESPONSE phase does correctly call
  each of the SOAP header handlers it keeps the address of the
  initial PROGRAM_LIST instead of the larger PROGRAM_LIST.
  This results in an abend SM0002 together with message DFHSM0002
  when it attempts to freemain the initial PROGRAM_LIST which has
  already been freemained.
  
  DFHSM0002 applid A severe error (code X'0305') has occurred in
  module DFHSMGF.
  
  Additional keywords: msgDFHSM0002
  

Problem conclusion

• UI52924 UI52925 UI52929 UI53223 UI60737 UI57327
  
  DFHPISN routine process_response has been changed to return the
  correct PROGRAM_LIST address to be freemained.
  

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:

  PH18332 UI66230 UI66231 UI66232

Modules/Macros

• DFHECEI  DFHEPAS  DFHMEPIC DFHMEPIE DFHMEPIK DFHMLJS  DFHMLTF
  DFHPIA1  DFHPIAD  DFHPIAT  DFHPICA  DFHPICC  DFHPIDM  DFHPIDSH
  DFHPIDUF DFHPIII  DFHPIIW  DFHPIJG  DFHPIJP  DFHPIJP1 DFHPIJS
  DFHPIJW  DFHPILN  DFHPIMM  DFHPIPL  DFHPIPM  DFHPIPM2 DFHPIPS
  DFHPIRE  DFHPIRI  DFHPIRL  DFHPIRM  DFHPIRN  DFHPIRS  DFHPISC
  DFHPISF  DFHPISN  DFHPIST  DFHPITC  DFHPITC1 DFHPITC2 DFHPITC3
  DFHPITE  DFHPITH  DFHPITL  DFHPITQ  DFHPITRI DFHPITS  DFHPIUE
  DFHPIWR  DFHPIWT  DFHPIXI  DFHPIXM  DFHPIXO  DFHWSADH DFHWSATR
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R000 PSY UI66232

     UP19/11/30 P F911 {

• R100 PSY UI66231

     UP19/11/30 P F911 {

• R900 PSY UI66230

     UP19/11/30 P F911 {

Fix is available

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