IC68126: 6.X SERVER CRASH WHEN MULTIPLE BACKUP DATABASE PROCESSES ATTEMPT TO RUN AT THE SAME TIME.

IBM Tivoli Storage Manager V6.1 Fix Pack 4 (6.1.4) Server Downloads

APAR status

• Closed as program error.

Error description

• There is a very small timing window near the end of backup
  database processing in which a second backup database process
  can start. If this should occur it is possible for the second of
  the two processes to end up with an invalid pointer at startup
  resulting in a segmentation fault in IcInsertCtlItem.
  The following is the stack trace at the time of a failure:
  pthdb_session.c, 833: 0 PTHDB_INTERNAL (internal error)
  pthreaded.c, 1953: PTHDB_INTERNAL (internal error)
  IcInsertCtlItem(??) at 0x1003247f8
  icStartBackup(??, ??, ??, ??, ??, ??, ??, ??) at 0x10062dba0
  AdmBackupDb(??) at 0x10093d778
  AdmCommandLocal(??, ??, ??, ??, ??) at 0x100175cdc
  admCommand(??, ??, ??, ??, ??) at 0x100174348
  SmExecScheduledCommand(??) at 0x1005f6cd4
  smScheduledConsoleSession(??) at 0x1005f6994
  CsRunCmdThread(??) at 0x1005f5fcc
  StartThread(??) at 0x100009bb0
  Tivoli Storage Manager Versions Affected: 6.1 and 6.2
  Initial Impact: Medium
  Additional Keywords: db backups core zz61 zz62
  

Local fix

• Ensure scheduled database backups are scheduled to start far
  enough apart to avoid any overlap.
  

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  6.1.4.0 and 6.2.2.0. Note that     *
  *                 this is                                      *
  *                 subject to change at the discretion of IBM.  *
  ****************************************************************
  *
  

Problem conclusion

• This problem was fixed.
  

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

• R61A PSY

     UP

• R61H PSY

     UP

• R61L PSY

     UP

• R61S PSY

     UP

• R61W PSY

     UP

• R62A PSY

     UP

• R62H PSY

     UP

• R62L PSY

     UP

• R62S PSY

     UP

• R62W PSY

     UP