Re: [Qemu-devel] [PATCH 11/22] i8259: Update IRQ state after reset

[Avi Kivity]

> > phase 1: reset internal state (-> move all outputs to reset
> > values), don't
> > sample inputs yet
> 
> This solves the problem of old state accidentally interfering with
> reset state.
> 
> > phase 2: allow sampling inputs
> 
> This could lead to incorrect state for complex networks. It would
> still be better than what we have now.
> 

Can you give an example?  Can be theoretical, doesn't have to refer to real 
hardware.