title: Where are core dump files produced by "node --abort-on-uncaught-exception" located?
body: <p>I just read <a href="http://techblog.netflix.com/2015/12/debugging-nodejs-in-production.html" rel="noreferrer">this blog post by Netflix</a> - excellent read. I have been playing around a bit with the tools etc. mentioned; especially with generating core dumps on uncaught exceptions by setting the <code>--abort-on-uncaught-exception</code> flag. This is also described <a href="https://www.joyent.com/developers/node/debug" rel="noreferrer">here</a> for instance. I think it is working so far with a simple test script (that does nothing but throw an error), as I see this output:</p>
  
  <pre><code>Uncaught Error: foo
  
  FROM
  run (/tmp/test/index.js:4:9)
  wrapper [as _onTimeout] (timers.js:265:14)
  Timer.listOnTimeout (timers.js:110:15)
  [1]    18165 illegal hardware instruction (core dumped)  node --abort-on-uncaught-exception index.js
  </code></pre>
  
  <p>However, it seems like I am too stupid to locate the actual <strong>core dump file</strong> that this experiment should produce (?).
  I looked at <code>/var/cores/</code> and <code>/opt/cores/</code> which were mentioned somewhere on the web - but these directories don't exist.
  a quick <code>find / -name core -type f</code> did not yield anything useful either. What am I missing?</p>
  
  <p>EDIT: node version is v0.12.0.</p>