IBM Support

IV65755: UNMOUNT OF AUTOMOUNT FILESYSTEMS OR STOPWPAR CAN HANG IN WPAR APPLIES TO AIX 7100-04

A fix is available

Obtain the fix for this APAR.

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • On AIX systems with WPARs, where the WPARs are setup for
automount, unmount of the autofs mount points or even the
stopwpar command could hang.
The dump from the time of the problem shows an aump
thread
stuck in:

(0)> f 583
pvthread+024700 STACK:
[001051A0]e_block_thread+000280 ()
[004F1244]sosbwait+0003C4 (??, ??)
[0054A36C]soereceive+00146C (??, ??, ??, ??, ??, ??, ??)
[00570790]soreceive+000010 (??, ??, ??, ??, ??, ??)
[00014F50].kernel_add_gate_cstack+000030 ()
[062444E0]clntkudp_callit+000BE0 (F1000A00E0EA4628,
0000000000000000,
   0000000006299BD8, 0000000000000000, 0000000006299BD8,
0000000000000000,
   0000000000000002, 0000000000000000)
[F1000000C054F3A4]auto_calldaemon+000204 (??, ??, ??, ??,
??, ??, ??, ??)
[F1000000C054BBF8]auto_null_request+000078 (??, ??, ??)
[F1000000C0549960]unmount_tree+000260 ()
[00014D70].hkey_legacy_gate+00004C ()
[00267D08]threadentry+000088 (??, ??, ??, ??)
[kdb_read_mem] no real storage @ FFFFFFFFFFF8D40

And the dump will also show that there is no automountd
daemon running on the WPAR.
Only a reboot of the global system will help recover from
this WPAR being in hung state.

Local fix

  • None. Global system needs to be rebooted to recover from
the WPAR hang.

Problem summary

  • When WPARs are setup for automount, unmount of the autofs mount
points or even the stopwpar command could hang after automount
daemon is stopped.

Problem conclusion

  • Handle automount exit as needed.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IV65755
    • 

  • Reported component name
    AIX V7.1
    • 

  • Reported component ID
    5765H4000
    • 

  • Reported release
    710
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2014-10-11
    • 

  • Closed date
    2014-10-11
    • 

  • Last modified date
    2015-12-31
    • 





    

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

    
IV64670
    

    • 

  • 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  U861544
       UP15/11/23  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:
            

            31 December 2015
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
Page Feedback