IT38305: Server can crash if 'protect stgpool type=local' process is cancelled before worker processes are created.

8.1.12.200-IBM-SPSRV-WindowsX64
8.1.12.200-IBM-SPSRV-Linuxx86_64
8.1.12.200-IBM-SPSRV-Linuxs390x
8.1.12.200-IBM-SPSRV-Linuxppc64le
8.1.12.200-IBM-SPSRV-AIX
IBM Spectrum Protect Server V8.1 Fix Pack 13 (V8.1.13) Downloads
IBM Spectrum Protect Server V8.1.12.X interim fix downloads

APAR status

• Closed as program error.

Error description

• IBM Spectrum Protect server can crash if 'protect stgpool'
  process is cancelled.
  The problem can happen if the 'cancel process' happens during
  the deletion phase where it is only seen that the
  
  Summary process (or processes) are created but the worker
  processes have not been created yet.
  
  'query process' will display if the summary and worker processes
   are running for 'protect stgpool' process.
  
  For example;
  
  query process
  
       107     Protect Stgpool                         Protecting
  storage pool CONTAINER on  server Server1 to COPY_TAPE. Protect
  process   phase: DELETING.
                (Summary)
  Extents protected: 0 of 0.   Extents failed to protect: 0.
  Amount protected:  0 bytes of 0 bytes. Amount failed to protect:
  0 bytes.
  
  This shows a 'protect stgpool' summary process running in
  deleting phase. No worker process is listed.
  
  
  
  When seen on an AIX server, using dbx, there be a stack similar
  to:
  
  pthread_kill(??, ??) at 0x900000000513884
  _p_raise(??) at 0x9000000005130c4
  raise.raise(??) at 0x90000000003f6e8
  abort() at 0x90000000005e0b8
  PsAbortServer(??) at 0x10001a690
  pkAbort(??) at 0x10001028c
  pkAcquireMutexTracked(??, ??, ??) at 0x100009e60
  SdProtQueryProcess(??, ??, ??, ??, ??) at 0x100c169cc
  procQueryProcess(??, ??, ??, ??, ??, ??) at 0x1004c5070
  AdmQueryProcess(??) at 0x101246d5c
  AdmCommandLocal(??, ??, ??, ??, ??) at 0x10089b7d4
  admCommand(??, ??, ??, ??, ??) at 0x1008985cc
  SmAdminCommandThread(??) at 0x1008c4cf0
  StartThread(0x0) at 0x1000114ac
  
  
  Actlog will show a similar sequence to this before server crash
  occurs:
  
  PROTECT STGPOOL_NAME type=local
  [...]
  ANR0984I Process XX for PROTECT STGPOOL (SUMMARY) started in the
  FOREGROUND
  [...]
  CANCEL PROCESS XX  (SESSION: 10560)
  
  
   | MDVREGR 8.1.11.0-TIV_5698MSV |
  
  
  
  
  
  
  
  
  
  
  IBM Spectrum Protect Versions Affected: Server 8.1.11.000 and
  above on all platforms.
  
  
  
  
  
  
  
  
  Additional Keywords: TSM TS005699408 194097  crash abend core
  protect stgpool cancel
  

Local fix

• Do not run 'cancel process' or wait until 'query process' shows
  worker processes, before running 'cancel process'.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All IBM Spectrum Protect server users.                       *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See error description.                                       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply fixing level when available. This problem is currently *
  * projected to be fixed in levels 8.1.12.200 and 8.1.13. Note  *
  * that this is subject to change at the discretion of IBM.     *
  ****************************************************************
  

Problem conclusion

• This problem was fixed.
  Affected platforms for reported release:  AIX, Linux, and
  Windows.
  Platforms fixed:  AIX, 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

• R81A PSY

     UP