IC72640: SHARED MEMORY SESSIONS TERMINATION FOR A SERVER HALT MAY CAUSE CRASH

IBM Tivoli Storage Manager V5.5 Fix Pack 6 (5.5.6) Server Downloads

APAR status

• Closed as program error.

Error description

• If Tivoli Storage Manager client is using shared memory as a
  communication method and HALT command is issued, this may cause
  server crash. Before shutdown is initiated, Tivoli Storage
  Manager server terminates all shared memory sessions. The crash
  may occur, if session thread is canceled at the same time.
  
  The call stack may look like following:
  
  0x0000000000d33d8f in shmHalt ()
  0x0000000000cc3895 in psCommTerm ()
  0x000000000059cd2a in admHaltServer (command=0x17dd518 "HALT",
  quiesce=False)
  0x000000000059cef4 in AdmHalt (cmdP=0x17dd3b8)
  0x00000000004809e4 in AdmCommandLocal (cmdP=0x17dd3b8,
  cmdMode=admAnyCmd, impliedCommit=True, confirmReq=<value
  optimized out>,     validateOnly=False)
  0x0000000000481e03 in admCommand (cmdP=0x17dd3b8,
  cmdMode=admAnyCmd, impliedCommit=True, confirmReq=False,
  validateOnly=False)
  0x0000000000b1b76a in SmAdminCommandThread (smCmdP=<value
  optimized out>)
  0x0000000000cb66fb in StartThread (startInfoP=0x1783888)
  0x00002b2cf6c67193 in start_thread () from
  /lib64/libpthread.so.0
  0x00002b2cf9473e2d in clone () from /lib64/libc.so.6
  
  TSM Versions Affected:
  Tivoli Storage Manager server 6.x on UNIX platform.
  
  Initial Impact:
  Low
  
  Additional Keywords:
  zz62 zz61 shmhalt sharedmem
  

Local fix

• The problem is avoidable by changing to a TCPIP communication
  method until fixing level is available.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All Tivoli Storage Manager server users      *
  *                 of the shared memory communication method.   *
  ****************************************************************
  * PROBLEM DESCRIPTION: See ERROR DESCRIPTION.                  *
  ****************************************************************
  * RECOMMENDATION: Apply fixing level when available.           *
  *                 This problem is currently projected          *
  *                 to be fixed in levels 5.5.6, 6.1.5 and       *
  *                 6.2.3. Note that this is subject             *
  *                 to change at the discretion of IBM.          *
  ****************************************************************
  *
  

Problem conclusion

• This problem was fixed.
  Affected platforms:  AIX, HP-UX, Sun Solaris, Linux, and z/OS.
  

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

• R55A PSY

     UP

• R55H PSY

     UP

• R55L PSY

     UP

• R55S PSY

     UP

• R61A PSY

     UP

• R61H PSY

     UP

• R61L PSY

     UP

• R61S PSY

     UP

• R62A PSY

     UP

• R62H PSY

     UP

• R62L PSY

     UP