title: Task management on x86
body: <p>Can someone please point out some books or online resources which explain in detail and at an advanced level the task management features of x86? I'm specifically interested in understanding the relationship between x86 hardware and the OS (POSIX style) when an interrupt or context switch occurs. Intel manuals are very confusing and I can't seem to get much out of them.</p>
  
  <p>Thanks,
  -Dhruv</p>