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

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 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