Re: [PATCH 1/2] Use structs instead of hardcoded offsets in x86 bootdecompressor.

[H. Peter Anvin]

Rik van Riel wrote:
> On Fri, 23 May 2008 23:17:01 -0700
> "H. Peter Anvin" <hpa@xxxxxxxxx> wrote:
>
> > Uhm... except it doesn't live at address zero, at all.
> >
> > It's called "zeropage" because we used to recycle it into 
> > empty_zero_page, a long long time ago.
> >
> > The bootparms structure is pointed to by %esi being passed from the 
> > setup code to the decompressor to the kernel.
>
> Then why does dereferencing the uninitialized
> pointer work, both in the code before and after
> the patch?
>
> What am I misssing?

Heck if I know.  It definitely *shouldn't* work...

	-hpa
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