title: Varnish died by unknown reason for me
body: <p>tonight I found something strange in the logs. After all, varnish stop to accept connections. After I restart it manually, it start to operation normally. Could somebody clear to me what happens? Thank you!</p>
  
  <pre><code>Linux,2.6.32-5-amd64,x86_64,-smalloc,-smalloc,-hcritbit
  varnish-3.0.4 revision 9f83e8f
  
  Sep 18 03:04:49 m32 varnishd[31985]: Child (12939) not responding to CLI, killing it.
  Sep 18 03:04:54 m32 varnishd[31985]: Child (12939) not responding to CLI, killing it.
  Sep 18 03:04:54 m32 varnishd[31985]: Child (12939) not responding to CLI, killing it.
  Sep 18 03:04:54 m32 varnishd[31985]: Child (12939) died signal=3
  Sep 18 03:04:54 m32 varnishd[31985]: Child cleanup complete
  Sep 18 03:04:54 m32 varnishd[31985]: child (19269) Started
  Sep 18 03:05:04 m32 varnishd[31985]: Pushing vcls failed:#012CLI communication error (hdr)
  Sep 18 03:05:04 m32 varnishd[31985]: Stopping Child
  Sep 18 03:05:04 m32 varnishd[31985]: Child (19269) said Child starts
  Sep 18 03:05:12 m32 varnishd[31985]: Child (19269) said Child dies
  Sep 18 03:05:12 m32 varnishd[31985]: Child (19269) died status=1
  Sep 18 03:05:12 m32 varnishd[31985]: Child cleanup complete
  </code></pre>