IBM Support

IV56693: SUPPRESS DOUBLE DELIVERY OF DISCONNECT/TEARDOWN EVENTS APPLIES TO AIX 6100-09

A fix is available

 

APAR status

  • Closed as program error.

Error description

  • In some cases, for a connection, two teardown related events
    may be delivered (e.g. DISCONNECT & UNREACHABLE). If the
    application can't handle those scenarios (as the CF usually
    frees resources after the first event) there could be a
    problem. Hence we eliminate the double delivery.
    

Local fix

Problem summary

  • In some cases, for a connection, two teardown related events
    may be delivered (e.g. DISCONNECT & UNREACHABLE). If the
    application can't handle those scenarios (as the CF usually
    frees resources after the first event) there could be a
    problem. Hence we eliminate the double delivery.
    

Problem conclusion

  • In the notification delivery paths (server side and client
    side) for BROKEN/UNREACHABLE/DISCONNECT etc. we ensure that
    if the connection is already disconnected (i.e. a prior
    disconnect type of event has been delivered), we don't
    generate an event for the second time.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV56693

  • Reported component name

    UDAPL

  • Reported component ID

    5765G6240

  • Reported release

    610

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-03-14

  • Closed date

    2014-03-14

  • Last modified date

    2015-11-22

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

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

    IV56788 IV56794

Fix information

  • Fixed component name

    UDAPL

  • Fixed component ID

    5765G6240

Applicable component levels

  • R610 PSY U861472

       UP15/11/22 I 1000

PTF to Fileset Mapping

Document information

More support for: AIX family

Software version: 610

Operating system(s): AIX

Reference #: IV56693

Modified date: 22 November 2015