IT09373: "BACKUP IMAGE" CAN CRASH THE CLIENT WHEN "COMPRESSION YES" AND "COMPRESSALWAYS NO" OPTIONS ARE ENABLED.

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IBM Tivoli Storage Manager (TSM) client 6.3.2.x interim fix downloads - EOL

APAR status

• Closed as program error.

Error description

• Tivoli Storage Manager Client "backup image" command on all
  platforms, can crash or hang
  when compression is enabled and "compressalways no" is set.
  
  For example:
  compressionalways no
  dsm.sys      has
  compression  yes
  
  
  Using dbx on AIX platform against the generated core file shows:
  
  IOT/Abort trap in pthread_kill at 0x90000000063beb4 ($t27132)
  0x90000000063beb4 (pthread_kill+0xd4) e8410028          ld
  r2,0x28(r1)
  
  (dbx) where
  pthread_kill(??, ??) at 0x90000000063beb4
  _p_raise(??) at 0x90000000063b708
  raise.raise(??) at 0x90000000002baac
  abort() at 0x90000000007c944
  psunxthr.psAbort()() at 0x100029f40
  psunxthr.psTrapHandler(int,int,__sigcontext*)() at 0x100029eb0
  apisend.ApiObjRead(unsigned char*,unsigned int,void*,unsigned
  int,unsigned int*,int*,S_DSANCHOR*)() at 0x9000000017fb5c4
  apisend.CompressedObjSend(Sess_o*,unsigned char*,unsigned
  int,short,int*,S_DSANCHOR*)() at 0x9000000017f9f14
  apiSendData(Sess_o*,unsigned char,int*,DataBlk*,S_DSANCHOR*)()
  at
  0x9000000017f794c
  dsmsend.sendDataOnly(S_DSANCHOR*,DataBlk*)() at
  0x9000000017e38d4
  dsmsend.tsmEndSendObjEx() at 0x9000000017e6c48
  .() at 0x900000000be56e0 [inaccessible: missing
  /usr/tivoli/tsm/client/ba/bin64/plugins/libPiIMG.a]
  .() at 0x900000000be044c [inaccessible: missing
  /usr/tivoli/tsm/client/ba/bin64/plugins/libPiIMG.a]
  .() at 0x900000000bdbb54 [inaccessible: missing
  /usr/tivoli/tsm/client/ba/bin64/plugins/libPiIMG.a]
  image.imgSelective(imageObject_t*)() at 0x1003d8bd0
  txncon.tlImageSend(txnConsumerObject_t*,txnSpec_t*)() at
  0x100534498
  bacontrl.DccTxnConsumer::IPRA.$HandleQueue()() at 0x100588524
  bacontrl.DccTxnConsumer::Run(void*)() at 0x10058772c
  bacontrl.DccTxnConsumer::DoThread(void*)() at 0x100589fac
  bacontrl.callDoCThread2(void*)() at 0x10058624c
  thrdmgr.startThread2(Threadstart*)() at 0x10003c910
  thrdmgr.startThread(Threadstart*)() at 0x10003c80c
  
  In the dsmerror.log it is seen before the crash period:
  
  ANS2101E Compressed data grew.
  ANS2101E (RC155)  Compressed data grew.
  ANS1424W Retrying failed image operation for volume
  /abcdef/abc.
  
  
  Tivoli Storage Manager Client Versions Affected:  6.3.x, 6.4.x
  and 7.1.x on all platforms
  
  |
  
  Initial Impact: Medium
  
  Additional Keywords:  TSM crash client core image backup
  compression
  

Local fix

• Either use "compressalways yes"
  or do not use compression at all.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Tivoli Storage Manager versions 6.3, 6.4     *
  *                 and 7.1 running on all platforms             *
  ****************************************************************
  * PROBLEM DESCRIPTION: See ERROR DESCRIPTION.                  *
  ****************************************************************
  * RECOMMENDATION: This issue is projected to be fixed in the   *
  *                 Tivoli Storage Manager Client on all         *
  *                 platforms in 7.1.4 versions.                 *
  ****************************************************************
  *
  

Problem conclusion

• Image backup has been corrected, so now the backup will not
  hang or crash.
  

Temporary fix

• A fix for this problem is currently targeted for interim fix
  package 6.3.2.5.
  Until the interim fix is actually available this information
  is subject to change at the discretion of IBM.
  

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

• DSMC
  

Fix information

• Fixed component name

  TSM CLIENT

• Fixed component ID

  5698ISMCL

Applicable component levels

• R63A PSY

     UP

• R63H PSY

     UP

• R63L PSY

     UP

• R63S PSY

     UP

• R63W PSY

     UP

• R71A PSY

     UP

• R71H PSY

     UP

• R71L PSY

     UP

• R71S PSY

     UP

• R71W PSY

     UP