title: kernel thread --- "kthreadd"
body: <p>As we all know, kthreadd is a kernel thread, which is used to help others create new kernel threads (Review <code>kthread_create_list</code> to see if there is any new kernel thread need to create).</p>
  
  <p>But I can not understand why we do not use <code>create_kthread</code> to create a new kernel thread?
  I do not see any difference kthreadd makes.</p>
  
  <p>Could you give me some suggestions, please.</p>
  
  <p>Thanks for your great help.</p>