IBM Support

PM66088: TELNET PRINTER CONNECTION HANGS

A fix is available

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APAR status

  • Closed as program error.

Error description

  • SSL Telnet printer in session with SNA application. The
    application sends a large print buffer. Part way through
    transmission to client the session hangs. The session is
    terminated with RC=1006 A TCP/IP send data request failed.
    

Local fix

  • Have the SNA application break up the print job into smaller
    pieces.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of the IBM Communications Server   *
    *                 for z/OS Version 1 Release 13 IP Telnet      *
    *                 Services using SSL.                          *
    ****************************************************************
    * PROBLEM DESCRIPTION: Print connection hangs during           *
    *                      a large send.                           *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    The problem may be summarized as follows:
    1. A Telnet SSL connection is established.
    2. The client gets in session with an application.
    3. The application sends a large amount of data to the client.
    4. The send completes asynchronously and has a errnojr of
       xxxx01BF (Description: A read error occurred on the user
       data area passed to the service)
    5. The connection is terminated with RC=1006.
    
    +-------------------------------------------------------------+
    + 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

  • EZBTTSSD is updated to not use a local storage area for the
    IOV for a send that may go asynchronous.
    
    EZBTTSND is updated to save the length of the sent message.
    
    * Cross Reference between External and Internal Names
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM66088

  • Reported component name

    TCP/IP V3 MVS

  • Reported component ID

    5655HAL00

  • Reported release

    1C0

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-06-04

  • Closed date

    2012-06-18

  • Last modified date

    2012-08-09

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

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

    UK79643

Modules/Macros

  • EZBTTSND EZBTTSSD
    

Fix information

  • Fixed component name

    TCP/IP V3 MVS

  • Fixed component ID

    5655HAL00

Applicable component levels

  • R1D0 PSY UK79643

       UP12/07/18 P F207

Fix is available

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Document Information

Modified date:
09 August 2012