IBM Support

IT10154: MQ CHANNELS FAIL WITH FDC XC006001 AND ERRORS XECS_I_PRIVATE_MEMORY_ERROR AND "INVALID HEAD TAG"

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • When an IBM MQ channel is started the channel may fail with the
    following FDC.
    
    Probe Id :- XC006001
    Component :- xcsFreeMemFn
    Program Name :- amqrmppa
    Thread :- 4 RemoteCaller
    Major Errorcode :- xecS_I_PRIVATE_MEMORY_ERROR
    Probe Description :- AMQ6091: An internal WebSphere MQ error has
    occurred.
    Arith1 :- 4564349920 (0x1100e73e0)
    Comment1 :- invalid head tag
    .
    MQM Function Stack
    rriCallerEntry
    rriFreeSess
    cccFreeMem
    xcsFreeMemFn
    xcsFFST
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users using distributed MQ SSL channels with multiple connection
    names with a queue manager with the IV40268 APAR fix applied.
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    A logic error meant that unnecessary state information was
    retained from the previous connection attempt, and was
    incorrectly reused during the attempt to create a subsequent
    connection.
    

Problem conclusion

  • MQ channel code has been modified to correctly populate the
    channel state information when establishing a new connection in
    this scenario.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v7.0       7.0.1.14
    v7.1       7.1.0.8
    v7.5       7.5.0.6
    v8.0       8.0.0.4
    
    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

    IT10154

  • Reported component name

    WMQ BASE MULTIP

  • Reported component ID

    5724H7251

  • Reported release

    800

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2015-07-17

  • Closed date

    2015-08-27

  • Last modified date

    2015-08-27

  • 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 BASE MULTIP

  • Fixed component ID

    5724H7251

Applicable component levels

  • R800 PSY

       UP

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.0.0.0","Edition":"","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
27 August 2015