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IT01947: CRASH WHEN CANCELING BACKUP DB OF TIVOLI STORAGE MANAGER SERVER

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APAR status

  • Closed as program error.

Error description

  • The Tivoli Storage Manager server can crash after issuing the
    CANCEL PROCESS command against an existing BACKUP DB process.
    This problem will not occur every time the CANCEL PROCESS
    command is issued against a running database backup process,
    as it depends on a rare timing condition.
    
    Customer/L2 Diagnostics:
    The following failing callstack can be extracted from the
    dump file generated (Linux example):
    
      #0  PkTrackMutexAcquired()
      #1  pkAcquireMutexTracked()
      #2  PvrPrepareClose()
      #3  pvrClose()
      #4  AsCloseVol()
      #5  asCloseOutputSdStream()
      #6  bfCloseOutputSdStream()
      #7  IcResetCtlDesc()
      #8  IcBackupThread()
      #9  StartThread()
    
    The following call stack is another possible symptom of this
    issue:
      AcquireLatchSpecific()
      PvrGetDevClassLatches()
      PvrRecycleMp()
      pvrClose()
      AsCloseVol()
      asCloseOutputSdStream()
      bfCloseOutputSdStream()
      icReleaseBackupStream()
      SmBackupDB()
      SmNodeSession()
      HandleNodeSession()
      DoNodeGeneral()
      smExecuteSession()
      psSessionThread()
      StartThread()
    Initial Impact:
    High
    
    Tivoli Storage Manager Versions Affected:
    All Tivoli Storage Manager servers users.
    
    Additional Keywords:
    TSM CRASH ABORT ABEND SEG FAULT ICBACKUPTHREAD PVRCLOSE
    PKTRACKMUTEXACQUIRED BACKUP BACK UP DB DATABASE
    

Local fix

  • Do not issue the CANCEL PROCESS command against BACKUP DB
    processes until fixing maintenance can be applied.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All Tivoli Storage Manager server users.                     *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See ERROR DESCRIPTION.                                       *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Apply fixing level when available. This problem is currently *
    * projected to be fixed in level 7.1.1. Note that this is      *
    * subject to change at the discretion of IBM.                  *
    ****************************************************************
    

Problem conclusion

  • This problem was fixed.
    Affected platforms:  AIX, HP-UX, Solaris, Linux, and Windows.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT01947

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    63L

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2014-05-21

  • Closed date

    2014-06-19

  • Last modified date

    2016-12-05

  • 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

    TSM SERVER

  • Fixed component ID

    5698ISMSV

Applicable component levels

  • R71A PSY

       UP

  • R71H PSY

       UP

  • R71L PSY

       UP

  • R71S PSY

       UP

  • R71W PSY

       UP



Document information

More support for: Tivoli Storage Manager

Software version: 63L

Reference #: IT01947

Modified date: 05 December 2016