IBM Support

IZ57962: IBM.HWCTRLRMD CONNECTIONS IN CLOSE WAIT

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Readme and Release notes for release 1.7.1.7 CSM-1.7.1.7-power-Linux
Readme and Release notes for release 1.7.1.8 CSM-1.7.1.8-power-AIX
Readme and Release notes for release 1.7.1.8 CSM-1.7.1.8-power-Linux
Readme and Release notes for release 1.7.1.8 CSM-1.7.1.8-x86-Linux
Readme and Release notes for release 1.7.1.7 CSM-1.7.1.7-power-AIX
Readme and Release notes for release 1.7.1.7 CSM-1.7.1.7-x86-Linux
Readme and Release notes for release 1.7.1.9 CSM-1.7.1.9-power-AIX
Readme and Release notes for release 1.7.1.9 CSM-1.7.1.9-power-Linux
Readme and Release notes for release 1.7.1.9 CSM-1.7.1.9-x86-Linux
Readme and Release notes for release 1.7.1.10 CSM-1.7.1.10-power-AIX
Readme and Release notes for release 1.7.1.10 CSM-1.7.1.10-power-Linux
Readme and Release notes for release 1.7.1.10 CSM-1.7.1.10-x86-Linux
Readme and Release notes for release 1.7.1.11 CSM-1.7.1.11-power-AIX
Readme and Release notes for release 1.7.1.11 CSM-1.7.1.11-power-Linux
Readme and Release notes for release 1.7.1.11 CSM-1.7.1.11-x86-Linux
Readme and Release notes for release 1.7.1.12 CSM-1.7.1.12-power-AIX
Readme and Release notes for release 1.7.1.13 CSM-1.7.1.13-power-AIX

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APAR status

  • Closed as program error.

Error description

  • An invalid LParID will result in a "Node not found"
error which makes the IBM.HWCTLRM request the lib to
reopen the event socket repeatedly.
In libhmc_power.so, when it receives a request to
reopen the event socket, it will reopen a new event
socket even when the previous opened event socket is
still active. The old socket is replaced by the new
socket and the old will never be closed.

Local fix

  • 



Problem summary


    

  • There are certain conditions, including an invalid LParID,
which cause IBM.HWCTRLRM to reopen an event socket even
though an event socket is still open.  In this situation
the old socket is never closed.  netstat -a will show these
socket connections in a CLOSE_WAIT state.

    



Problem conclusion


    

  • Instances when event sockets were not being closed have
been corrected.  In addition, before reopening an event
socket, IBM.HWCTRLRM will now verify that the socket has
been closed, and if it hasn't, it will close it.

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IZ57962
    • 

  • Reported component name
    CSM FOR AIX BAS
    • 

  • Reported component ID
    5765F6700
    • 

  • Reported release
    171
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2009-08-11
    • 

  • Closed date
    2009-09-15
    • 

  • Last modified date
    2016-03-24
    • 





    

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

    • 

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

    
U830583
    

    • 



Fix information


    

  • Fixed component name
    CSM FOR AIX BAS
    • 

  • Fixed component ID
    5765F6700
    • 



Applicable component levels


    

  • R171  PSY  U872436
       UP16/03/24  I  1000
    • 



PTF to Fileset Mapping








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            22 August 2022
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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