IC83697: TIMING WINDOW ERROR DURING CLIENT BACKUP WITH CLIENT SIDE DEDUPLICATION MAY CAUSE SERVER CRASH

IBM Tivoli Storage Manager (TSM) server V6.3.3.x interim fix downloads

APAR status

• Closed as program error.

Error description

• There is a timing window on client side deduplication which can
  cause a server crash if the client ends the main session before
  the chunk query session terminates.  It is not guaranteed to
  result in a crash,  but rather is just a timing window issue
  when the client main session and chunk query session are ending
  at the same time.   The client should finish the chunk query
  session first but this does not always occur.
  
  Customer/L2 Diagnostics (if applicable)
  Call stack:
  (dbx) where
  tmAbortX(??, ??, ??) at 0x1000b5660
  bfEndChunkQrySession(??) at 0x1005ca0c4
  SmNodeSession(??, ??) at 0x10066762c
  HandleNodeSession(??, ??, ??) at 0x100198588
  smExecuteSession(??, ??, ??, ??, ??, ??, ??, ??) at 0x10018d1e8
  psSessionThread(??) at 0x100057904
  StartThread(??) at 0x100020bdc
  
  The following ANR9999D message may also be seen:
  ANR9999D_0974559572
  bfDedupEndSession(bfddedup.c:1167)  Thread<46363>: bfSessP
  11c03ec78, Bad eyecatcher.  (SESSION:
  15914)
  ANR9999D Thread<46363> issued message 9999 from:
  (SESSION: 15914)
     SSION: 15914)
  ANR9999D Thread<46363>  0x000000010000d1b8 StdPutText (SESSION:
  15914)
  ANR9999D Thread<46363>  0x000000010000dc34
  OutDiagToCons (SESSION:
  15914)
  ANR9999D Thread<46363>  0x0000000100008e9c outDiagfExt (SESSION:
  15914)
  ANR9999D Thread<46363>  0x00000001005ccd00  bfDedupEndSession
  (SESSION: 15914)
  ANR9999D Thread<46363>  0x000000010069a230  EndDedupBfSession
  (SESSION: 15914)
  ANR9999D Thread<46363>  0x000000010067f37c
  EndBfSession (SESSION:
  15914)
  ANR9999D Thread<46363>  0x00000001006903d4
  CloseSessStats (SESSION:
  15914)
  ANR9999D Thread<46363>  0x00000001006672e0
  SmNodeSession (SESSION:
  15914)
  ANR9999D Thread<46363>  0x000000010019858c  HandleNodeSession
  (SESSION: 15914)
  ANR9999D Thread<46363>  0x000000010018d1ec  smExecuteSession
  (SESSION: 15914)
  ANR9999D Thread<46363>  0x0000000100057908 psSessionThread
  (SESSION: 15914)
  ANR9999D Thread<46363>  0x0000000100020be0 StartThread (SESSION:
  15914)
  
  *NOTE*
  None
  
  Platforms affected:
  Server  6.2, 6.3 Unix/Linux/Windows
  
  Initial Impact: Medium
  
  Additional Keywords: crash core abend ZZ63 ZZ62 dedup chunk
  

Local fix

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 6.2.5 and 6.3.4. 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

• 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