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IZ93239: LINUX. BLOCKED FOR MORE THAN 120 SECONDS MESSAGES

A fix is available

Tivoli Access Manager for Operating Systems 6.0.0-TIV-PDO-FP0030

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APAR status

  • Closed as program error.

Error description

  • Linux. Blocked for more than 120 seconds messages in syslogd
output file. Message example follows;

kernel: INFO: task ALU:2866 blocked for more than 120 seconds.
kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
        disables this message.
kernel: ALU           D ffff81000a376420     0  2866      1
        2867  2865 (L-TLB)
kernel:  ffff810070f83cf0 0000000000000046 0000000000000002
         0000000000000000
kernel:  0000000000000000 000000000000000a ffff81007fe28040
         ffffffff80309b60
kernel:  000000feb5cb3e06 000000000000237f ffff81007fe28228
         0000000000000002
kernel: Call Trace:
kernel:  [<ffffffff8843668f>] :kail:kail_cond_wait+0x8f/0xd0
kernel:  [<ffffffff8008e16d>] default_wake_function+0x0/0xe
kernel:  [<ffffffff8008e16d>] default_wake_function+0x0/0xe
kernel:  [<ffffffff884794bb>] :kaznmod:
         kpcf_asyncLUThread+0x24b/0x530
kernel:  [<ffffffff8009971e>] switch_uid+0x5f/0x71
kernel:  [<ffffffff80094b84>] daemonize+0x2fa/0x304
kernel:  [<ffffffff88479270>]
:kaznmod:kpcf_asyncLUThread+0x0/0x530
kernel:  [<ffffffff884632f5>] :kaznmod:
         kthread_create_wrapper+0x35/0x50
kernel:  [<ffffffff88479270>]
:kaznmod:kpcf_asyncLUThread+0x0/0x530
kernel:  [<ffffffff8005efb1>] child_rip+0xa/0x11
kernel:  [<ffffffff88479270>]
:kaznmod:kpcf_asyncLUThread+0x0/0x530
kernel:  [<ffffffff884632c0>] :kaznmod:
         kthread_create_wrapper+0x0/0x50
kernel:  [<ffffffff8005efa7>] child_rip+0x0/0x11

Refer to CMVC Defect 103921

Local fix

  • 



Problem summary


    

  • Linux. Blocked for more than 120 seconds messages in syslogd
output file. Message example follows;

kernel: INFO: task ALU:2866 blocked for more than 120 seconds.
kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
        disables this message.
kernel: ALU           D ffff81000a376420     0  2866      1
        2867  2865 (L-TLB)
kernel:  ffff810070f83cf0 0000000000000046 0000000000000002
         0000000000000000
kernel:  0000000000000000 000000000000000a ffff81007fe28040
         ffffffff80309b60
kernel:  000000feb5cb3e06 000000000000237f ffff81007fe28228
         0000000000000002
kernel: Call Trace:
kernel:  [<ffffffff8843668f>] :kail:kail_cond_wait+0x8f/0xd0
kernel:  [<ffffffff8008e16d>] default_wake_function+0x0/0xe
kernel:  [<ffffffff8008e16d>] default_wake_function+0x0/0xe
kernel:  [<ffffffff884794bb>] :kaznmod:
         kpcf_asyncLUThread+0x24b/0x530
kernel:  [<ffffffff8009971e>] switch_uid+0x5f/0x71
kernel:  [<ffffffff80094b84>] daemonize+0x2fa/0x304
kernel:  [<ffffffff88479270>]
:kaznmod:kpcf_asyncLUThread+0x0/0x530
kernel:  [<ffffffff884632f5>] :kaznmod:
         kthread_create_wrapper+0x35/0x50
kernel:  [<ffffffff88479270>]
:kaznmod:kpcf_asyncLUThread+0x0/0x530
kernel:  [<ffffffff8005efb1>] child_rip+0xa/0x11
kernel:  [<ffffffff88479270>]
:kaznmod:kpcf_asyncLUThread+0x0/0x530
kernel:  [<ffffffff884632c0>] :kaznmod:
         kthread_create_wrapper+0x0/0x50
kernel:  [<ffffffff8005efa7>] child_rip+0x0/0x11

    



Problem conclusion


    

  • |fixpack|6.0.0-TIV-PDO-IF0027

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IZ93239
    • 

  • Reported component name
    ACCESS MGR OS
    • 

  • Reported component ID
    5698PDO00
    • 

  • Reported release
    600
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2011-01-26
    • 

  • Closed date
    2011-01-26
    • 

  • Last modified date
    2011-01-26
    • 





    

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

    • 

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

    • 



Fix information


    

  • Fixed component name
    ACCESS MGR OS
    • 

  • Fixed component ID
    5698PDO00
    • 



Applicable component levels


    

  • R600  PSY
       UP
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            26 January 2011
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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