IV94415: TACMD EXECUTECOMMAND ABNORMALLY TERMINATES

IBM Tivoli Monitoring 6.3.0 Fix Pack 7 Service Pack 1 (6.3.0.7-TIV-ITM-SP0001)

APAR status

• Closed as program error.

Error description

• Issuing an executecommand request may abnormally terminate after
  the
  command has completed its processing on the target system with
  the
  following output to the user's screen,
  
  *** glibc detected *** /opt/IBM/ITM/lx8266/ue/bin/tacmd: double
  free or
  corruption (!prev): 0x0000000000605bd0 ***
  RECREATE INSTRUCTIONS:
  The occurrance of the problem is dependent on the contents of
  memory at
  the moment in time that the command completes and it is the
  duplicate freeing of the allocated Heap storage that results in
  the
  error.
  
  1. Install ITM 630 FP7 TEMS
  2. Enable KT1 Security setting
  3. Install OS Agent on target endpoint
  4. Execute the command
  /opt/IBM/ITM/bin/tacmd executecommand -m agent:LZ -c 'if [ !
  -f
  $configDir ]; then mkdir -m 2775 -p /opt/IBM/ITM/custom/conf/ &&
  chown
  tivoli:tivoli /opt/IBM/ITM/custom/conf/; fi; mv
  /opt/IBM/ITM/custom/conf/pingfile.conf
  /opt/IBM/ITM/custom/conf/pingfile.conf.bak'
  5. Observe the error displayed to the user
  *** glibc detected *** /opt/IBM/ITM/lx8266/ue/bin/tacmd: double
  free or
  corruption (!prev): 0x0000000000605bd0 ***
  

Local fix

Problem summary

• Executing the Command Line command /opt/IBM/ITM/bin/tacmd
  executecommand -m <MSN> -c <Command String> may abend with the
  following error message displayed at the user's console,
  
  *** glibc detected *** /opt/IBM/ITM/lx8266/ue/bin/tacmd: double
  free or corruption (!prev): 0x0000000000605bd0 ***
  
  
  The executecommand processing incorrectly attempts to free heap
  storage that is not allocated.
  

Problem conclusion

• The processing will only free heap storage that is already
  allocated.
  
  
  The fix for this APAR is contained in the following maintenance
  packages:
  
     | service pack | 6.3.0.7-TIV-ITM-SP0001
  

Temporary fix

• Temporarily use the 063006000 (ITM 630 Fix Pack 6) version
  software (KUE) as a Command Line interface until this fix is
  applied.
  

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

  TEMS

• Fixed component ID

  5724C04MS

Applicable component levels