Messages in this thread | | | Date | Sun, 25 May 2008 00:03:30 -0400 | From | Rik van Riel <> | Subject | Re: [PATCH 1/2] Use structs instead of hardcoded offsets in x86 boot decompressor. |
| |
On Fri, 23 May 2008 23:17:01 -0700 "H. Peter Anvin" <hpa@zytor.com> 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?
| |