PM93959: ABEND0C4 RC11 WHEN EXECUTING MODIFY COMMAND DURING SMTP INITIALIZATION

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• A MODIFY command was issued for SMTP before SMTP had fully
  initialized causing an ABEND0C4 RC11.
  
  This APAR could have multiple symptoms.
  
  Verification Step:
  
  Verification Steps for ABEND during SMS processing:
  
  1) The following message is issued:
  IGD300I AN ABEND OCCURRED DURING SMS PROCESSING
  
  2) Dump Title is:
  DUMP TITLE=COMPON=SMS,COMPID=DF101,ISSUER=IGDERDM2,CSECT=UNKNOW
             N ,OFFSET=UNKNOWN ,ASMDATE=UNKNOWN,FMID=UNKNOWN
  
  3) Last call in RB chain is DYNALLOC.
  
  
  Additional Symptom(s) Search Keyword(s): SMSG
  

Local fix

• Wait until SMTP has fully initialized and attempt command again.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of the IBM Communications Server   *
  *                 for z/OS Version 1 Release(s) 12 and 13 IP:  *
  *                 SMTP                                         *
  ****************************************************************
  * PROBLEM DESCRIPTION:   An ABEND0C4 occurred in SMS module    *
  *                      IGDERDM2 when a Modify SMTP,SMSG        *
  *                      command was issued before SMTP          *
  *                      had fully initialized.                  *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The problem can be summarized as follows:
  1. SMTP was started.
  2. Before SMTP had finished initialization, an operator issued
     a MODIFY SMTP,SMSG command.
  3. The address of the external interrupt handler had not been
     filled in yet, so MVPIOINT took a wild branch that eventually
     lead to an ABEND0C4 in SMS module IGDERDM2.
  +-------------------------------------------------------------+
  + Please check our Communications Server for OS/390 homepages +
  + for common networking tips and fixes.  The URL for these    +
  + homepages can be found in Informational APAR II11334.       +
  +-------------------------------------------------------------+
  

Problem conclusion

• MVPOCM has been changed to verify that the external interrupt
  handler address has been set before scheduling an IRB for
  MVSIOINT to process the MODIFY SMTP,SMSG command.  If it has not
  been set, MVPOCM will issue new message EZY1979I to inform the
  operator that they should try the SMSG command again later.
  
  The following is the documentation update for the new message:
  
  ---------------------------------------------------------------
  IP Messages Volume 3 (EZY), SC31-8785-10 and SC31-8785-11
  
  EZY1979I SMTP cannot accept the MODIFY command - try again later
  
  Results: The MVS platform received a command to modify SMTP,
    but the command was not accepted because SMTP initialization
    had not completed.
  
  Example:
  
  F SMTP,SMSG,ST
  EZY1979I SMTP cannot accept the MODIFY command - try again later
  
  System Action:  SMTP continues.
  
  Operator Response:  Issue the command after SMTP initialization
    completes.
  
  User Response:  Not Applicable.
  
  System Programmer Response:  No Action Needed.
  
  Problem Determination:  Not Applicable.
  
  Source:  z/OS Communications Server TCP/IP: SMTP
  
  Module:  MVPOCM
  
  Routing Codes:  10
  
  Descriptor Codes:  12
  
  Automation:  This message is sent to the console where the
    command was entered.  Automation could be used to issue the
    MODIFY command at a later time.
  
  * Cross Reference between External and Internal Names
  EZAAA00A (MSMVP   )  EZACA01Y (MVPOCM  )
  

Temporary fix

Comments

APAR Information

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

  PM77026

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

  UK96458 UK96459

Modules/Macros

• EZAAA00A EZACA01Y
  

Fix information

• Fixed component name

  TCP/IP V3 MVS

• Fixed component ID

  5655HAL00

Applicable component levels

• R1C0 PSY UK96458

     UP13/08/31 P F308

• R1D0 PSY UK96459

     UP13/08/31 P F308

Fix is available

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