PM63805: Client/server channel fails. FDC records written by amqrmppa process, with probes XC130003 and RM816101

A fix is available

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APAR status

  • Closed as program error.

Error description

  • A client/server channel fails on the server side.
    
    There is a memory exception in the SVRCONN channel thread, which
    most commonly runs inside a process named amqrmppa.
    
    FDC files are written, containing probes XC130003 and RM816101,
    like the following examples.
    
    Probe Id     :- XC130003
    Component    :- xehExceptionHandler
    Program Name :- amqrmppa
    Comment1     :- SIGSEGV: address not mapped((nil))
    MQM Function Stack
    ...
    rriAddMPHToAPIReply
    xcsFFST
    
    Probe Id     :- RM816101
    Component    :- rriAddMPHToAPIReply
    Program Name :- amqrmppa
    

Local fix

  • NA
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of WebSphere MQ for z/OS           *
    *                 Version 7 Release 0 Modification 1 and       *
    *                 Release 1 Modification 0.                    *
    ****************************************************************
    * PROBLEM DESCRIPTION: Abend S0C4 may occur in CMQXRSRV when   *
    *                      using message properties with a SVRCONN *
    *                      channel.                                *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    Under certain circumstances an internal buffer may be freed
    without clearing the associated buffer length field. If the
    buffer pointer is used without first checking that the buffer is
    valid, then an S0C4 abend may occur.
    

Problem conclusion

  • Processing has been amended to ensure the buffer is checked
    before use.
    010Y
    100Y
    CMQXRSRV
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM63805

  • Reported component name

    WMQ Z/OS V7

  • Reported component ID

    5655R3600

  • Reported release

    010

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-05-03

  • Closed date

    2013-02-11

  • Last modified date

    2013-03-04

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

    IV17091

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

    UK91580 UK91581

Modules/Macros

  • CMQXRSRV
    

Fix information

  • Fixed component name

    WMQ Z/OS V7

  • Fixed component ID

    5655R3600

Applicable component levels

  • R010 PSY UK91580

       UP13/03/01 P F302

  • R100 PSY UK91581

       UP13/03/01 P F302

Fix is available

  • Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.



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Document information


More support for:

z/OS family

Software version:

7.0.1

Reference #:

PM63805

Modified date:

2013-03-04

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