Hi Youquan,

Yes, it works.

But I want to know the root cause: 5520 chipset has issue? The hardware
of my product has issue? or driver of my product has issue?

My plan is: try to print IRTE; if IRTE content is not what I expect, try
to find the time the kernel created the entry and check why the kernel
filled with an unexpected value.

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https://bugs.launchpad.net/bugs/605686

Title:
  nointremap needed - Blocked an interrupt request due to source-id
  verificiation failure

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