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Date: Wed, 24 Jun 2009 17:52:10 -0500
From: Scott Wood <scottwood@freescale.com>
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To: kernel mailz <kernelmailz@googlemail.com>
Subject: Re: 85xx Address space query
References: <abe8a1fd0906240244i6e33c260xadff5cf462df7b8c@mail.gmail.com>	<D47FC871-1535-4DBF-8617-6EEA8C180484@kernel.crashing.org>
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kernel mailz wrote:
> But If the app was running with PID=1, interrupt occurs, kernel code
> gets executed in PID=1, how does the kernel handle this ? and goes
> back to PID=0, since its translations are all in PID=0

PID 0 is special, it's mappings are present regardless of the value of 
the PID register.

-Scott