PH41406: DFHTR0112 FOLLOWED BY DFHIS0002 RECEIVED FOR TERMINATED SESSION

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• A DFHTR0112  Bad data passed for tracing to module DFHTRPT dump
  is received followed by multiple DFHIS0002 A severe error (code
  X'0206') has occurred in module DFHISIS dumps.
  
  
  The trace in the DFHTR0112 dump shows
  
  IS  0200 ISIS  ENTRY - FUNCTION(BIND_RECEIVER)
  SESSION(xxxxxxxx)
  followed later by -
  
  IS 0206 ISIS  *EXC* - INVALID_DATA_RECEIVED -
  FUNCTION(BIND_RECEIVER) SESSION(xxxxxxxx)
  
  
  In this situation the session has been terminated while this
  mirror task was waiting for its initial data to arrive.  This
  situation was detected and DFHISIS INITIALIZE_RECEIVER returned
  a PURGED response.  That led to an AIPK deferred abend to be
  set.  Importantly the DFHISIS call has not received the actual
  request into an ISSB related buffer.  The issb_purged flag is
  also not set, because this isn't really a direct purge of the
  task.
  
  DFHISXM gets to BIND_XM_CLIENT.  It checks for issb_purged being
  set, which it is not.  Processing continues and DFHISIS is
  called for BIND_RECEIVER.  This expects to process the received
  FMH5.  The request wasn't actually received so this call works
  on residual buffer data.  The residual data causes the exception
  trace to be issued and then also the bad length to be passed to
  trace domain.
  
  Code will changed to avoid calling BIND_RECEIVER when we know
  that the earlier INITIALIZE_RECEIVER call has failed.
  Additional Symptom(s) Search Keyword(s):
  ABENDAPIK bind dfhisis dfhisxm KIXREVRJL
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All.                                         *
  ****************************************************************
  * PROBLEM DESCRIPTION: DFHTR0112 followed by DFHIS0002 for an  *
  *                      IPIC mirror task.                       *
  ****************************************************************
  A request arrives in CICS over an IPCONN and a mirror task is
  attached.  During initialization of the mirror task the IPIC
  connection is lost.  This causes DFHISIS INITIALIZE_RECEIVER
  to return a PURGED response and for a deferred AIPK abend to be
  set.  The mirror task has not received all of the inbound
  request.
  
  DFHISIS BIND_RECEIVER gets called to process the request even
  though it hasn't been received properly.  DFHISIS processes
  residual data.  This leads to an exception trace entry being
  made with an invalid length.  This results in a DFHTR0112
  message followed by a DFHIS0002 message and dump.
  

Problem conclusion

• DFHISXM has been changed to no longer call DFHISIS BIND_RECEIVER
  when the task is abending AIPJ or AIPK.
  

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:

  UI78915 UI78916 UI78917

Modules/Macros

• DFHISXM
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R100 PSY UI78917

     UP22/01/15 P F201

• R200 PSY UI78916

     UP22/01/15 P F201

• R300 PSY UI78915

     UP22/01/15 P F201

Fix is available

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