PK19085: DFHSO0102 ERROR (CODE X'0C62') DFHSOLS UK04721 FOLLOWED BY DFHSM0002 ERROR (CODE X'0305') DFHSMGF DURING SHUTDOWN.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• In trace at shutdown we see:
  SO 0C10 SOLS  EVENT ASYNCIO_EXIT          -1,113,1178011C
  SO 0C11 SOLS  *EXC* ASYNCIO_ERROR         -1,113,1178011C
  LM 0003 LMLM  ENTRY UNLOCK                26F2A808,EXCLUSIVE
  LM 0004 LMLM  EXIT  UNLOCK/EXCEPTION      NOT_LOCK_OWNER
  SO 0C62 SOLS  *EXC* EIO_RECEIVED          -1,122,00000000
  and then invalid freemain occurs.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All.                                         *
  ****************************************************************
  * PROBLEM DESCRIPTION: MSGDFHSM0002 error X'0305' caused by    *
  *                      invalid freemain during immediate       *
  *                      close processing of TCPIPSERVICEs       *
  *                      following the loss of TCPIP connections *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  If the TCPIP connections to more than one TCPIPSERVICE are lost,
  for example due to a loss of the TCPIP stack, a manual DROP of
  the connections or an F OMVS, SHUTDOWN command, DFHSOLS will
  receive an EIO or EUNATCH response to the outstanding async
  accept calls for these TCPIPSERVICEs. DFHSOLS will execute part
  of a refstep to reissue the async accept call in error, after
  doing an immediate close of the first TCPIPSERVICE affected.
  This causes the end of the SO Anchor block and the start of
  DFHSOMG to be overlaid, corrupting the subpool token required
  on any subsequent storage manager call to freemain a socket.
  When an immediate close is done for the next TCPIPSERVICE the
  freemain of the socket fails with SM0002 error X'0305'.
  Additional keywords: asynchronous 0C63 0C62 X'0C63' SO0102
                       MSGDFHSO0102
  

Problem conclusion

• DFHSOLS has been altered so that ASYNC ACCEPT processing is no
  longer invalidly issued following the immclose processing for
  an EIO or EUNATCH error.
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

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

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

  UK12517

Modules/Macros

•    DESSOLS  DFHSOLS
  

Fix information

• Fixed component name

  CICSTS 3.1 Z/OS

• Fixed component ID

  5655M1500

Applicable component levels

• R400 PSY UK12517

     UP06/03/14 P F603

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.