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IY97580: FFST PROBE XC130003 IN CCXSEND ON SERVER SIDE OF SSL CHANNEL

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • SSL channel fails to start. On the listening side, an FFST with
    probe ID XC130003 occurred with the following function stack:
    
       ccxResponder
       rrxResponder
       rriAcceptSess
       ccxSend
       xcsFFST
    
    The error reported is a SIGSEGV, SIGBUS or a similar memory
    access violation. This APAR only applies where rriAcceptSess and
    ccxSend are at the end of the function stack.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Customers using SSL channels. This particular issue affects the
    server (responding) end of SSL channels in rare cases.
    
    Platforms affected:
     All Distributed (iSeries, all Unix and Windows)
    ****************************************************************
    PROBLEM SUMMARY:
    Shortly before the error occurs, WMQ disconnected the channel
    status table memory from the amqrmppa process. Later on, the
    ccxSend function tried to access the status entry for the
    channel and this caused a memory access violation.
    

Problem conclusion

  • The WMQ SSL initialisation code has been modified so that it
    nullifies the pointer to the channel status entry at the time
    that the status table memory is disconnected.
    
    The channel code will not attempt to access the status table if
    the pointer is null, so this prevents the access violation.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
                       v6.0
    Platform           Fix Pack 6.0.2.3
    --------           --------------------
    Windows            U200279
    AIX                U811346
    HP-UX (PA-RISC)    U811630
    HP-UX (Itanium)    U811631
    Solaris (SPARC)    U811632
    Solaris (x86-64)   U811633
    iSeries            SI27288
    Linux (x86)        U811634
    Linux (x86-64)     U811635
    Linux (zSeries)    U811636
    Linux (Power)      U811637
    Linux (s390x)      U811638
    
    The latest available maintenance can be obtained from
    'WebSphere MQ Recommended Fixes'
    http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037
    
    If the maintenance level is not yet available, information on
    its planned availability can be found in 'WebSphere MQ
    Planned Maintenance Release Dates'
    http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
    ---------------------------------------------------------------
    

Temporary fix

Comments

APAR Information

  • APAR number

    IY97580

  • Reported component name

    WMQ LIN X86 V6

  • Reported component ID

    5724H7204

  • Reported release

    600

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2007-04-19

  • Closed date

    2007-05-21

  • Last modified date

    2007-07-27

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

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

Fix information

  • Fixed component name

    WMQ LIN X86 V6

  • Fixed component ID

    5724H7204

Applicable component levels

  • R600 PSY

       UP

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Document Information

Modified date:
27 July 2007