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IV57545: GSSD DAEMON CORE DUMPS IN GETHOSTCRED() APPLIES TO AIX 7100-01

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APAR status

  • Closed as program error.

Error description

  • AIX NFSv4 daemon, gssd, core dumps in the gethostcred()
routine
with the following stack:


IOT/Abort trap in pth_signal.pthread_kill
[./usr/lib/libpthreads.a] at 0xd05187c0 ($t1)
0xd05187c0 (pthread_kill+0xa0) 80410014         lwz
r2,0x14(r1)

(dbx) where
pth_signal.pthread_kill(??, ??) at 0xd05187c0
pth_signal._p_raise(??) at 0xd0517c64
raise.raise(??) at 0xd0120ba0
abort() at 0xd017bf64
gethostcred(minor_status = 0x2ff229a4), line 181 in
"gssd_proc.c"
gss_init_sec_context_1_svc(argp = 0x2ff22920, res =
0x2ff22998, rqstp = 0x200d16c8), line 2033 in
"gssd_proc.c"
gssprog_1(rqstp = 0x200d16c8, transp = 0x200d1578), line
321 in "gssd_svc.c"
_svc_prog_dispatch(??, ??, ??) at 0xd135b03c
_svc_run_mt() at 0xd135dc80
svc_run.svc_run() at 0xd135eff0
main(argc = 1, argv = 0x2ff22c50), line 437 in "gssd.c"

Local fix

  • 



Problem summary


    

  • gssd core dumps at gethostcred()

    



Problem conclusion


    

  • In gethostcred(), remove call krb5_cc_close(), since it is
attempting to access freed memory for hostkeycache

    



Temporary fix


    

  • 



Comments


    

  • 6100-07 - use AIX APAR IV58296
6100-08 - use AIX APAR IV57838
6100-09 - use AIX APAR IV51995
6100-09 - use AIX APAR IV51995
6100-09 - use AIX APAR IV51995
7100-01 - use AIX APAR IV57545
7100-02 - use AIX APAR IV37673
7100-02 - use AIX APAR IV37673
7100-03 - use AIX APAR IV52721

    



APAR Information




    

  • APAR number
    IV57545
    • 

  • Reported component name
    AIX V7.1
    • 

  • Reported component ID
    5765H4000
    • 

  • Reported release
    710
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2014-03-26
    • 

  • Closed date
    2014-03-26
    • 

  • Last modified date
    2014-08-14
    • 





    

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

    
IV37673
    

    • 

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

    • 



Fix information


    

  • Fixed component name
    AIX V7.1
    • 

  • Fixed component ID
    5765H4000
    • 



Applicable component levels


    

  • R710  PSY  U861849
       UP14/08/12  I  1000
    • 



PTF to Fileset Mapping








      
              
                            

              

              [{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSMV87","label":"AIX 6.1 Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSMVAX","label":"AIX Express Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11R","label":"AIX 7.1 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Edition":"","Line of Business":{"code":"","label":""}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            14 August 2014
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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