IT11966: QUERY PROCESS MAY CAUSE SERVER CRASH

7.1.5.000-TIV-TSMSRV-AIX
7.1.5.000-TIV-TSMSRV-HP-UX
7.1.5.000-TIV-TSMSRV-Linuxppc64
7.1.5.000-TIV-TSMSRV-Linuxs390x
7.1.5.000-TIV-TSMSRV-Linuxx86_64
7.1.5.000-TIV-TSMSRV-SolarisSPARC
7.1.5.000-TIV-TSMSRV-WIN
IBM Spectrum Protect Server V7.1 Fix Pack 5 (7.1.5.000) Downloads

APAR status

• Closed as program error.

Error description

• There is a small timing window when a Tivoli Storage Manager
  Server may crash after execution of QUERY PROCESS command
  against a process that has just started and still has the
  Process ID number equal to zero.
  The following errors maybe logged into the Server Activity Log
  some moments before the crash:
  
  for example:
  
  ANR9999D_3000086854 icQueryBackup(icback.c:668) Thread<504982>:
  Query backup process 205; does not match  with the current
  backup DB process 0
  
  Where the Query backup process matches the process id in the
  message that came right before this, that is:
  
  ANR2280I Full database backup started as process 205
  
  while the current backup DB process is 0.
  
  The following core dump stack has been observed on AIX for this
  problem:
  
  PsAbortServer(??) at 0x100012b80
  pkAbort(??) at 0x10000ba24
  pkAcquireMutexTracked(??, ??, ??) at 0x100007208
  procReportContext(??, ??, ??) at 0x100324ea0
  OutDiagToCons(??, ??, ??, ??, ??) at 0x10001d8f4
  outDiagfExt(0x3e, 0x0, 0x119116880, 0x101c88380, 0xcb, 0x0,
  0x11933bd08,0x0) at 0x1000098c4
  icQueryBackup(??, ??, ??, ??, ??) at 0x1006cebcc
  procQueryProcess(??, ??, ??, ??) at 0x100324230
  AdmQueryProcess(??) at 0x100f35258
  AdmCommandLocal(??, ??, ??, ??, ??) at 0x100355fd0
  admCommand(??, ??, ??, ??, ??) at 0x100353f54
  RunScript(??, ??, ??, ??) at 0x10035c600
  DoRunScript(??) at 0x100351360
  AdmCommandLocal(??, ??, ??, ??, ??) at 0x100355fd0
  admCommand(??, ??, ??, ??, ??) at 0x100353f54
  SmExecScheduledCommand(??) at 0x10088ebbc
  smScheduledConsoleSession(??) at 0x10088e880
  CsRunCmdThread(??) at 0x10088ca2c
  StartThread(0x0) at 0x10000cadc
  
  
  Also the following error messages can be logged into the
  "dsmserv.err" file:
  
  ANR9999D Mutex acquire deadlock at process.c.1492: mutex for
  process.c.346 thread 504982 (tid 3c96) - mutex is owned by
  thread 504982 (tid 3c96) for process.c.1026, errno=45.
  ANR9999D Mutex acquisition failure, errno=45 from
  process.c.1492; thread 504982 (tid 3c96).
  ANR7838S Server operation terminated.
  
  This problem might happen for any Server process and will only
  occur in scenario when the Context Reporting is enabled (
  default to ON and controlled by SET CONTEXTMESSAGING command)
  
  
  
  Tivoli Storage Manager Versions Affected:
  All supported versions of Tivoli Storage Manager Server
  
  
  
  Initial Impact:
  Medium
  
  
  
  Additional Keywords:
  TSM Server SP Spectrum Protect ANR9999D Mutex acquire deadlock
  "errno=45" ANR7838S  ANR9999D_3000086854 "Q PROCESS" crash core
  dump
  

Local fix

• Disable the Server Message Context Reporting by command
  "SET CONTEXTMESSAGING OFF"
  

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 7.1.5. 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