title: Understanding kernel message 'nobody cared (try booting with the "irqpoll" option)'
body: <p>I'm trying to understand the meaning of the following message:</p>
  
  <pre><code>irq N:nobody cared (try booting with the "irqpoll" option)
  </code></pre>
  
  <p>Does this mean the IRQ handler not processing the response even it has gotten the interrupt? Or that the scheduler failed to call an irq handler?</p>
  
  <p>In what condition is this happening?</p>