IC96466: TIVOLI STORAGE MANAGER CLIENT MAY HANG WHEN DOING BACKUP VM

IBM Tivoli Storage Manager (TSM) client 7.1.0.x interim fix downloads
IBM Tivoli Storage Manager (TSM) Client 7.1.1 Downloads and READMEs

APAR status

• Closed as program error.

Error description

• When taking VM backup by "backup vm", it may never end due to
  the hang of Tivoli Storage Manager Client process.   The
  problem may happen depending on system load due to the race
  condition between threads processing the internal message queue.
  
  The problem may happen with both dsmc and dsmagent, i.e. GUI
  client.
  
  Tivoli Storage Manager Versions affected:
  Tivoli Storage Manager Client 6.4 on Windows and Linux
  platforms.
  
  Additional Keywords:
  
  
  Additional L2 info:
  The thread that interferes is the main thread sitting in msg
  loop
  ---
  dsmc.exe!psTimedWaitCondition(void * * condP, void * * mutexP,
  long iWaitMilliSeconds, volatile int * predicate)
  dsmc.exe!pkTimedWaitCb(conditionBundle * cbP, long
  iWaitMilliSeconds)
  dsmc.exe!DccTaskStatus::ccMsgLoop(const volatile int *
  isFinishedP, const int bWaitForFinish)
  dsmc.exe!DccBackupController::bacWaitTillComplete(int
  bDisplayFinalStats)
  dsmc.exe!DscBackupVMFullvStor(Sess_o * sessP, LinkedList_t *
  vmListP)
  dsmc.exe!DscBackupVM(Sess_o * sessP)
  dsmc.exe!DscBackupTop(Sess_o * sessP)
  dsmc.exe!DoFunc(DsmcGlobalCB_t * cbP)
  dsmc.exe!dscLoop(int argc, char * * argv)
  dsmc.exe!dscmain(int argc, char * * argv)
  dsmc.exe!main(int argc, char * * argv)
  dsmc.exe!__tmainCRTStartup()
  kernel32.dll!000000007783652d()
  ntdll.dll!0000000077a6c541()
  --
  
  Initial Impact:
  Middle
  

Local fix

• Force to terminate dsmc.exe using Windows Task Manager, then
  retry backup vm.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Backup-archive client versions 6.4 running   *
  *                 on all Microsoft Windows and Linux           *
  *                 platforms.                                   *
  ****************************************************************
  * PROBLEM DESCRIPTION: See ERROR DESCRIPTION                   *
  ****************************************************************
  * RECOMMENDATION: Apply fixing level when available. This      *
  *                 problem is currently projected to be fixed   *
  *                 in level 6.4.2. Note that until the fixing   *
  *                 level is available, this information is      *
  *                 subject to change at the discretion of IBM.  *
  ****************************************************************
  *
  

Problem conclusion

• The problem has been fixed so that it no longer occurs.
  

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:

Modules/Macros

• DSM
  

Fix information

• Fixed component name

  TSM CLIENT

• Fixed component ID

  5698ISMCL

Applicable component levels

• R64L PSY

     UP

• R64W PSY

     UP