IC66609: TIVOLI STORAGE MANAGER CLIENT CRASH DURING INCREMENTAL BACKUP WITH SNAPDIFF OPTION WHEN EXCLUDED FILES ARE PROCESSED.

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APAR status

  • Closed as program error.

Error description

  • A Tivoli Storage Manager V6.1 client may crash when using the
    -snapdiff option with the incremental backup.The crash occurs
    when the incremental backup processes a file excluded for
    backup. For example :
    
    1. In dsm.sys specifify the option "EXCLUDE filespec".
       For example:
       EXCLUDE /.../myfile
    2. Perform incremental backup with snapdiff.
    3. Create a new directory on the NAS/N-Series file server
       volume and create in this directory the file that should be
       excluded. For example:
         /my_netapp/myfile
    4. Start incremental backup with snapdiff.
    
    Under these circumstances, the client crashes. For example :
    
    # dsmc inc -snapdiff /my_netapp
    ...
    Incremental by snapshot difference of volume '/my_netapp'
    Directory-->               8,192 /my_netapp/ [Sent]
    ...
    ANS1898I ***** Processed    14,000 files *****
    ...
    Normal File-->               925 /my_netapp/path/filename [Sent]
    The assert subroutine failed: mgmtClass != NULL_MGMTCLASS,
    file cubackup.cpp, line 1373
    
    Fatal error: got signal  6
    IOT/Abort trap(coredump)
    
    Customer/L2 Diagnostics:
    In the case of a client running on AIX 5.3, the call stack of
    the core file produced by the crash shows :
    
    abort() at 0x900000000088260
    psunxthr.psAbort__Fv() at 0x10001ec98
    psunxthr.psTrapHandler__FiT1P12__sigcontext() at 0x10001ec0c
    pthread_kill(??, ??) at 0x90000000047789c
    _p_raise(??) at 0x9000000004772b0
    raise.raise(??) at 0x90000000005cbf8
    abort() at 0x90000000008822c
    __assert_c99(??, ??, ??, ??) at 0x900000000093fa0
    cubackup.cuBackInsEnh__FP6Sess_oP10fileSpec_tUcUiT4PcPUcT4UlT...
    senddata.sdSendObj__FP6Sess_oP8TxnBlockPFiP8TxnBlockPv_iPvP12...
    txncon.sendIt__FP17txnPrivConsumer_tP8TxnBlock() at 0x100272dd8
    txncon.PFtxnListLoop__FP19txnConsumerObject_ti() at 0x100272064
    txncon.PrivFlush2__FP19txnConsumerObject_t() at 0x100270d68
    txncon.PrivFlush__FP19txnConsumerObject_t() at 0x10026cd74
    txncon.tlSend__FP19txnConsumerObject_tP9txnSpec_tT2() at 0x10...
    bacontrl.HandleQueue__14DccTxnConsumerFv() at 0x100284f74
    bacontrl.Run__14DccTxnConsumerFPv() at 0x100284930
    bacontrl.DoThread__14DccTxnConsumerFPv() at 0x100285f2c
    bacontrl.callDoCThread2__FPv() at 0x100283c5c
    thrdmgr.startThread2__FP11Threadstart() at 0x100120f40
    thrdmgr.startThread__FP11Threadstart() at 0x100120e70
    
    TSM Versions Affected:
    TSM client V6.1 on all platforms.
    
    Additional Keywords:
    abend cored dump snap diff differential zz61
    

Local fix

  • One of the following 3 methods may be used :
    
    1. Do not exclude files when running incremental backup with the
       -snapdiff option.
    2. If files must be excluded, use the exclude.dir option instead
       of the exclude option.
    3. If files must be excluded and the exclude.dir option is not
       appropriate, use the "TESTFLAG SNAPDIFFINCR" option in the
       client dsm.opt file.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: Backup-archive client versions 6.1 and 6.2   *
    *                 running on IBM AIX and Microsoft Windows     *
    ****************************************************************
    * PROBLEM DESCRIPTION: See ERROR DESCRIPTION                   *
    ****************************************************************
    * RECOMMENDATION: Apply fixing level when available. This      *
    *                 problem is currently projected to be fixed   *
    *                 in levels 6.1.4 and 6.2.2. Note that this    *
    *                 is subject to change at the discretion of    *
    *                 IBM.                                         *
    ****************************************************************
    *
    

Problem conclusion

  • The problem has been fixed so the problem does not occur any
    more.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC66609

  • Reported component name

    TSM CLIENT

  • Reported component ID

    5698ISMCL

  • Reported release

    61A

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-02-23

  • Closed date

    2010-03-22

  • Last modified date

    2010-03-22

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

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

Modules/Macros

  • DSMC
    

Fix information

  • Fixed component name

    TSM CLIENT

  • Fixed component ID

    5698ISMCL

Applicable component levels

  • R61A PSY

       UP

  • R61D PSY

       UP

  • R61F PSY

       UP

  • R61W PSY

       UP



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Document information


More support for:

Tivoli Storage Manager

Software version:

61A

Reference #:

IC66609

Modified date:

2010-03-22

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