title: Getting Error Cannot fork() a new process
body: <p>I am working on ruby on rails and I am facing this problem on my site's apache error log after some time and apache stops working and after restarting apache it works. </p>
  
  <pre><code>ERROR: Cannot fork() a new process: Cannot allocate memory (errno=12) 
                                               in apache2 error log
  </code></pre>
  
  <p>I have searched for this and I found "update the passenger to fixed this issue". I have updated passenger but my problem is not fixed. Can anybody help me to fix this issue. Thank you</p>