IBM Support

IV99172: TRUSS -F MAY HANG IF CHILD TRUSS PROCESS ABORTS APPLIES TO AIX 6100-09

A fix is available

Obtain the fix for this APAR.

 

APAR status

  • Closed as program error.

Error description

  • truss may hang in:

pvthread+01BF00 STACK:
[001313DC]sigsuspend+00025C (000000001001B2C0 [??])
[00003938]syscall+000230 ()
[D0121290]sigsuspend+0001F0 (??)
[D03ABDC8]sigpause+0000C8 (??)
[10004FEC]control+00010C (??, ??, ??)
[1000171C]main+00127C (??, ??)
[10000168]__start+000068 ()

Local fix

  • 



Problem summary


    

  • when truss is run with -f option to follow children, and if any
kernelextensions which exposes system calls, are loaded
unloaded on the fly, truss child may hit coredump and truss
parent will hang.

Due to this customer cannot view the trace of system/library
calls of the debugged process.

    



Problem conclusion


    

  • Fixed the code where truss may hit coredump and hence avoiding
the coredump issue and the parent truss's hang issue.

    



Temporary fix


    

  • 



Comments


    

  • 6100-09 - use AIX APAR IV99172
6100-09 - use AIX APAR IV99172
7100-04 - use AIX APAR IJ01770
7100-05 - use AIX APAR IV99529
7200-00 - use AIX APAR IJ01707
7200-01 - use AIX APAR IJ01443
7200-02 - use AIX APAR IJ00532

    



APAR Information




    

  • APAR number
    IV99172
    • 

  • Reported component name
    AIX 6.1 EXT SUP
    • 

  • Reported component ID
    5765G6299
    • 

  • Reported release
    61E
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2017-08-21
    • 

  • Closed date
    2017-08-21
    • 

  • Last modified date
    2018-09-21
    • 





    

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

    
IV96937
    

    • 

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

    • 



Fix information


    

  • Fixed component name
    AIX 6.1 EXT SUP
    • 

  • Fixed component ID
    5765G6299
    • 



Applicable component levels


    



PTF to Fileset Mapping








      
              
                            

              

              [{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SG11Q","label":"AIX 6.1 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"61E","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SG11Q","label":"AIX 6.1 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"61E","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}}]
              

                                                                    

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            17 December 2021
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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