IBM Support

PM62520: CLEARCASE MVFS ON SUSE 11 SP1 PANICS ON VNODE_DOP_REVALIDATE THROUGH A VIEW-EXTENDED PATH

Fixes are available

Rational ClearCase Fix Pack 03 (8.0.0.3) for 8.0
Rational ClearCase Fix Pack 11 (8.0.0.11) for 8.0
Rational ClearCase Fix Pack 12 (8.0.0.12) for 8.0
Rational ClearCase Fix Pack 13 (8.0.0.13) for 8.0
Rational ClearCase Fix Pack 14 (8.0.0.14) for 8.0
Rational ClearCase Fix Pack 15 (8.0.0.15) for 8.0
Rational ClearCase Fix Pack 16 (8.0.0.16) for 8.0
Rational ClearCase Fix Pack 17 (8.0.0.17) for 8.0
Rational ClearCase Fix Pack 18 (8.0.0.18) for 8.0
Rational ClearCase Fix Pack 19 (8.0.0.19) for 8.0
Rational ClearCase Fix Pack 20 (8.0.0.20) for 8.0
Rational ClearCase Fix Pack 21 (8.0.0.21) for 8.0

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • ClearCase MVFS on SuSE 11 SP1 panics on vnode_dop_revalidate
through a view-extended path



ClearCase 7.1.2.x


SuSE 11 SP1



Backtrace from the panic:

PID: 20469  TASK: ffff880bbf580540  CPU: 0   COMMAND: 'perl'
 #0 [ffff880bcca85940] machine_kexec at ffffffff81020832
 #1 [ffff880bcca85990] crash_kexec at ffffffff810876c0
 #2 [ffff880bcca85a60] oops_end at ffffffff8139b2f0
 #3 [ffff880bcca85a80] __bad_area_nosemaphore at
ffffffff8102ddc5
 #4 [ffff880bcca85b40] page_fault at ffffffff8139a56f
    [exception RIP: kern_addr_valid+156]
    RIP: ffffffff8102c99c  RSP: ffff880bcca85bf0  RFLAGS:
00010202
    RAX: 00003f81eb8834b0  RBX: ffff880bcf296380  RCX:
ffff880000000000
    RDX: 00003f81eb883000  RSI: 00003ffffffff000  RDI:
00000000000004b0
    RBP: 00000000000000c0   R8: ffff880bbf580b70   R9:
0000000000000000
    R10: ffffffffa03db410  R11: ffff880bcca85df8  R12:
ffff880c1ff20a40
    R13: ffff880b6ae57e00  R14: ffff880bda280a78  R15:
ffff880bda280a48
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
 #5 [ffff880bcca85bf0] kmem_ptr_validate at ffffffff810eea8e
 #6 [ffff880bcca85c10] d_validate at ffffffff811120b7
 #7 [ffff880bcca85c30] vnode_dop_revalidate at ffffffffa03b3b1e
[mvfs]
 #8 [ffff880bcca85cc0] do_lookup at ffffffff81108eeb
 #9 [ffff880bcca85d00] __link_path_walk at ffffffff8110913f
#10 [ffff880bcca85da0] path_walk at ffffffff8110a1ce
#11 [ffff880bcca85dd0] do_path_lookup at ffffffff8110a39b
#12 [ffff880bcca85df0] user_path_at at ffffffff8110b0b7
#13 [ffff880bcca85ec0] vfs_fstatat at ffffffff811017c7
#14 [ffff880bcca85ef0] sys32_stat64 at ffffffff8103513f
#15 [ffff880bcca85f80] sysenter_dispatch at ffffffff81033b89
    RIP: 00000000ffffe430  RSP: 00000000ffdec584  RFLAGS:
00000296
    RAX: 00000000000000c3  RBX: ffffffff81033b89  RCX:
00000000f773a120
    RDX: 00000000f7577ff4  RSI: 0000000008094b38  RDI:
0000000008050078
    RBP: 00000000ffdec598   R8: 0000000000000000   R9:
0000000000000000
    R10: 0000000000000000  R11: 0000000000000000  R12:
00000000080a9fa8
    R13: 00000000ffdea1e8  R14: 0000000000000003  R15:
0000000000000000
    ORIG_RAX: 00000000000000c3  CS: 0023  SS: 002b


Workaround:  None

Local fix

  • 



Problem summary


    

  • ****************************************************************
* USERS AFFECTED:                                              *
****************************************************************
* PROBLEM DESCRIPTION:                                         *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
The customer reported system panics when doing lookups on
files with view-extended pathnames.

    



Problem conclusion


    

  • Examination of the dumps provided indicated that the panics
occurred in portions of the kernel not directly related to
the mvfs.  When the customer upgraded their OS to a later
set of bug fixes, they stopped encountering the panics.
This appears to have been a defect in SUSE Linux itself
which has been fixed by Novell.

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    PM62520
    • 

  • Reported component name
    CLEARCASE UNIX
    • 

  • Reported component ID
    5724G2901
    • 

  • Reported release
    712
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2012-04-16
    • 

  • Closed date
    2012-06-27
    • 

  • Last modified date
    2012-06-27
    • 





    

  • 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
    CLEARCASE UNIX
    • 

  • Fixed component ID
    5724G2901
    • 



Applicable component levels


    

  • R712  PSN
       UP
    • 








      
              
                            

              

              [{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSSH27","label":"Rational ClearCase"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.1.2","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            27 June 2012
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
Page Feedback