PM82694: EZBSOH03 DYNAREA CELL POOL STORAGE ORPHANED IN SUBPOOL 0 KEY 8 AFTER SUBTASKS TERMINATE. FINREVERSAL PM39441

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• This APAR is a logical route of FIN APAR PM39441.
  
  Subpool 0 key 8 storage allocated by EZBSOH03 not freed when
  application subtask terminates without issuing TERMAPI call.
  

Local fix

• Issue TERMAPI before terminating the subtask.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of the IBM Communications Server   *
  *                 for z/OS Version 1 Release(s) 13 IP:         *
  *                 Sockets API                                  *
  ****************************************************************
  * PROBLEM DESCRIPTION: Subpool 0 key 8 storage allocated by    *
  *                      EZBSOH03 not freed when application     *
  *                      subtask terminates without issuing      *
  *                      TERMAPI call.                           *
  *                      The orphaned storage eyecatcher in      *
  *                      the dump looks  as follows:             *
  *                      EZBSOH03 DYNAREA CELL PO.               *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Module EZBSOH03 is called by an application subtask as part
  of TCPIP socket processing (e.g. EZASMI or EZASOKET). EZBSOH03
  proceeds to allocate a dynamic storage area in subpool 0
  key 8. This storage area remains allocated until the subtask
  issues a TERMAPI call. If the subtask is attached with the
  SZERO parameter (subpool 0 storage shared), and the subtask
  detaches without first issuing a TERMAPI call, then the
  EZBSOH03 dynamic storage area does not get freed until the
  application main socket API task is terminated.  This can
  lead to a slow growth of subpool 0 key 8 storage over time.
  +-------------------------------------------------------------+
  + 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

• Changes have been made to the sockets API modules to release
  user autodata storage when the task terminates.
  
  * Cross Reference between External and Internal Names
  

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:

  UK93278

Modules/Macros

•    EZBSOH03 EZBSOMIS EZBSORM2 EZBZSDST
  

Fix information

• Fixed component name

  TCP/IP V3 MVS

• Fixed component ID

  5655HAL00

Applicable component levels

• R1D0 PSY UK93278

     UP13/05/10 I 1000

Fix is available

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