title: Apache loads forever even if the PHP file is removed
body: <p>We have a website that, in a certain set of circumstances, crashes and the page is blank and loads forever.</p>
  
  <p>What I don't understand is that once that crash has happened I can close the browser, physically remove index.php from the file system, then point a new browser session (in a different browser) at that URL, and it still loads forever instead of giving a 404 error.</p>
  
  <p>There's no access or error log entries, nothing in dmesg, etc.</p>
  
  <p>The weird thing is, even restarting Apache doesn't fix the issue, so it doesn't appear that it's an Apache process that's locking things up.</p>
  
  <p>I wondered if anybody has experienced anything like this, and knows what the cause could be?</p>