IV37298: KUXAGENT PROCESS CAN CRASH DUE TO TIMEOUT ON PIPE COMMUNICATION

IBM Tivoli Monitoring 6.2.3 Fix Pack 5 (6.2.3-TIV-ITM-FP0005)
IBM Tivoli Monitoring 6.2.3 Fix Pack 4 (6.2.3-TIV-ITM-FP0004)

APAR status

• Closed as program error.

Error description

• Problem Description: On Solaris the Monitoring Agent for UNIX OS
  kuxagent can crash if it is experiencing delays in
       communication on pipes with other OS Agent processes (like
  stat_daemon or mount_stat), generating a crash with the
  following
    stack trace:
  
    /opt/IBM/ITM/sol296/ux/bin/kuxagent:stacktrace_handler+0x58
    /lib/sparcv9/libc.so.1:0xd8684
    /lib/sparcv9/libc.so.1:0xcc1f8
    /lib/sparcv9/libc.so.1:0xcc404
    /lib/sparcv9/libc.so.1:0xd85fc [ Signal 14 (ALRM)]
    /lib/sparcv9/libc.so.1:0xd1de4
    /lib/sparcv9/libc.so.1:cond_wait+0x10
    /lib/sparcv9/libc.so.1:_pthread_cond_wait+0x8
    /opt/IBM/ITM/tmaitm6/sol286/lib/libkdc.so:0x36f88
    /opt/IBM/ITM/tmaitm6/sol286/lib/libkdc.so:0x37520
    /opt/IBM/ITM/tmaitm6/sol286/lib/libkdc.so:rpc__listen+0x330
    /opt/IBM/ITM/tmaitm6/sol286/lib/libkra.so:0x2a399c
    /opt/IBM/ITM/tmaitm6/sol286/lib/libkra.so:kglpsrvr+0x6a8
  /opt/IBM/ITM/tmaitm6/sol286/lib/libkra.so:kramain+0x684
    /opt/IBM/ITM/sol296/ux/bin/kuxagent:main+0x3a4
    /opt/IBM/ITM/sol296/ux/bin/kuxagent:_start+0x17c
    Fatal Error (14) Detected. Exiting
    This process is not in the root of the chain. Just to be sure
  send a
    SIGTERM to the parent.
  

Local fix

• n/a
  

Problem summary

• The kuxagent process can crash due to timeout on pipe
  communication.
  
  
  On Solaris,the Monitoring Agent for UNIX OS kuxagent can crash
  if it is experiencing delays in communication on pipes with
  other OS Agent processes (like stat_daemon or mount_stat),
  generating a crash with the following stack trace:
  
  /opt/IBM/ITM/sol296/ux/bin/kuxagent:stacktrace_handler+0x58
  /lib/sparcv9/libc.so.1:0xd8684
  /lib/sparcv9/libc.so.1:0xcc1f8
  /lib/sparcv9/libc.so.1:0xcc404
  /lib/sparcv9/libc.so.1:0xd85fc [ Signal 14 (ALRM)]
  /lib/sparcv9/libc.so.1:0xd1de4
  /lib/sparcv9/libc.so.1:cond_wait+0x10
  /lib/sparcv9/libc.so.1:_pthread_cond_wait+0x8
  /opt/IBM/ITM/tmaitm6/sol286/lib/libkdc.so:0x36f88
  /opt/IBM/ITM/tmaitm6/sol286/lib/libkdc.so:0x37520
  /opt/IBM/ITM/tmaitm6/sol286/lib/libkdc.so:rpc__listen+0x330
  /opt/IBM/ITM/tmaitm6/sol286/lib/libkra.so:0x2a399c
  /opt/IBM/ITM/tmaitm6/sol286/lib/libkra.so:kglpsrvr+0x6a8
  /opt/IBM/ITM/tmaitm6/sol286/lib/libkra.so:kramain+0x684
  /opt/IBM/ITM/sol296/ux/bin/kuxagent:main+0x3a4
  /opt/IBM/ITM/sol296/ux/bin/kuxagent:_start+0x17c
  Fatal Error (14) Detected.  Exiting
  

Problem conclusion

• Code has been changed in order to improve code strength on
  possible communication issues.
  
  The fix for this APAR is going to be included in the following
  maintenance vehicle:
      | fix pack | 6.2.3-TIV-ITM-FP0004
  

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

  ITM AGENT UNIX

• Fixed component ID

  5724C040U

Applicable component levels

• R623 PSY

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