Re: Questions about ACPI and PCI interrupt routing

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> For unloading drivers and re-probing devices, I found that hotplugging
> is very useful if the bus controller is compatible. However, I
> discovered that a new device does not work properly after using rescan
> because the kernel try to setup an interrupt using the old routing
> information.
>
> Is it possible to re-configure interrupt via ACPI? My current
> understanding is that ACPI layer is configured during boot process by
> reading various tables and create handlers for various method to
> handle devices. So my initial thought is that routing via IOAPIC is a
> simpler model and easier to tackle at first.
> 
> Any suggestion is welcome.

I suggest resuming the image on hardware identical to where it 
suspended:-)

This concept has come up before -- mostly in terms of handling
things that might be un/plugged while suspended.  However, nobody
has proposed replacing the motherboard itself while suspended.

cheers,
-Len
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