title: What killed my process and why?
body: <p>My application runs as a background process on Linux. It is currently started at the command line in a Terminal window.</p>
  
  <p>Recently a user was executing the application for a while and it died mysteriously. The text:</p>
  
  <blockquote>
    <p>Killed</p>
  </blockquote>
  
  <p>was on the terminal. This happened two times. I asked if someone at a different Terminal used the kill command to kill the process? No.</p>
  
  <p>Under what conditions would Linux decide to kill my process?  I believe the shell displayed "killed" because the process died after receiving the kill(9) signal.  If Linux sent the kill signal should there be a message in a system log somewhere that explains why it was killed?</p>