IC79957: SHOW DEDUPDELETEINFO COMMAND MIGHT CRASH THE TIVOLI STORAGE MANAGER SERVER

APAR status

• Closed as program error.

Error description

• There is a rare chance that the SHOW DEDUPDELETEINFO command
  crashes a Tivoli Storage Manager server, the symptom is seen
  if there are not any deref deletion threads running along with
  the deref queue thread.
  
  If the server is hit by the symptom, the following traceback
  will be reported (AIX system):
  Segmentation fault in pkAcquireMutexTracked at 0x1000078a0
  ($t1503979)
  0x1000078a0 (pkAcquireMutexTracked+0x80) 801c0058 lwz
  r0,0x58(r28)
  (dbx) where
  pkAcquireMutexTracked(??, ??, ??) at 0x1000078a0
  bfShowDedupDeleteInfo(??) at 0x10030575c
  AdmShow(??) at 0x100b90808
  AdmCommandLocal(??, ??, ??, ??, ??) at 0x100183360
  admCommand(??, ??, ??, ??, ??) at 0x100181d50
  SmAdminCommandThread(??) at 0x100891610
  StartThread(??) at 0x10001bbe4
  _pthread_body(??) at 0x9000000004854f4
  
    Tivoli Storage Manager Versions Affected: all V6
    Initial Impact: Low
    Additional Keywords: ZZ61 ZZ62 ZZ63
  

Local fix

• Do not use the SHOW DEDUPDELETEINFO command while the fix for
  the symptom is not installed
  .
  If the SHOW THREADS command shows a bfDerefQueueThread is
  present, then the crash will not occur for the
  SHOW DEDUPDELETEINFO command.
  

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 levels 6.2.4 and 6.3.3.             *
  *                 Note that this is subject to change at       *
  *                 the discretion of IBM.                       *
  ****************************************************************
  *
  
  AFFECTED PLATFORMS:
  AIX, HP-UX, Solaris, Linux, and Windows.
  

Problem conclusion

• The described problem has been resolved.
  

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

• R62A PSY

     UP

• R62H PSY

     UP

• R62L PSY

     UP

• R62S PSY

     UP

• R62W PSY

     UP

• R63A PSY

     UP

• R63H PSY

     UP

• R63L PSY

     UP

• R63S PSY

     UP

• R63W PSY

     UP