title: Unable to fork mongo process
body: <p>I am trying to run mongo process instance with this command :</p>
  
  <pre><code>mongod --replSet m101 --logpath "1.log" --dbpath /data/rs1 --port 27017 --smallfiles --oplogSize 64 --fork
  </code></pre>
  
  <p>But i am getting the following error :</p>
  
  <pre><code>about to fork child process, waiting until server is ready for connections.
  forked process: 5088
  ERROR: child process failed, exited with error number 100
  </code></pre>