PK76137: DFHME0121 MESSAGE ISSUED WHEN FORMATTING MESSAGE DFHWB0153

Obtain the fix for this APAR.

APAR status

• Closed as unreproducible.

Error description

• NOTIFY_ERROR routine is called in module DFHWBSO due to
  tid_wbso_notify_error being set. CICS is being driven through
  this path due to an ECONNABORTED condition on a client socket
  which had an ASYNC RECEIVE outstanding. When driven via this
  path, the clientipaddress and tcpipservice message inserts, for
  message DFHWB0153, are not primed so DFHWBSO is passing random
  stack storage to the message domain. The message domain issues
  message DFHME0121 when trying to format the DFHWB0153 message.
  Message domain thinks it has received "Invalid DBCS format" data
  .
  ADDITONAL KEYWORDS:  MSGDFHWB0153 MSGDFHME0121
  KIXREVGJT
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All                                          *
  ****************************************************************
  * PROBLEM DESCRIPTION: MSGDFHME0121 reports an invalid DBCS    *
  *                      format error when CICS tries to issue   *
  *                      message DFHWB0153.                      *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  An HTTP client socket is in an asynchronous receive. This
  receive completes with an ECONNABORTED error. DFHWBSO is called
  to process the error and it calls a subroutine which attempts to
  issue MSGDFHWB0153. DFHWBSO tries to pass two message inserts to
  message domain - the TCPIPSERVICE name and the CLIENT IP
  address. However, the domain call which initializes these fields
  gets bypassed in this situation and garbage is passed to message
  domain.
  One of the message inserts contains a spurious shift-in (X'0F')
  without a preceding shift-out (X'0E'). This results in message
  DFHME0121 with system dump code ME0121.
  

Problem conclusion

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

• DFHWBSO has been changed to ensure that both the TCPIPSERVICE
  name and CLIENT IP address are correctly passed to message
  domain for message DFHWB0153.
  

APAR Information

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

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

  UK42478

Modules/Macros

•    DESWBSO  DFHWBSO
  

Fix information

• Fixed component name

  CICSTS V3 Z/OS

• Fixed component ID

  5655M1500

Applicable component levels

• R400 PSY UK42478

     UP08/12/18 P F812

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.