linux-kernel - Re: x86 embedded - Problem getting past 'move compressed kernel before decompression'

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Message-ID: <4B8BEF71.5040105@zytor.com>
Date:	Mon, 01 Mar 2010 08:46:41 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Graeme Russ <graeme.russ@...il.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: x86 embedded - Problem getting past 'move compressed kernel 
 before decompression'

On 03/01/2010 03:56 AM, Graeme Russ wrote:
> 
> I have done a little more digging. By adding an ascii string before
> relocated: label, I am able to determine that the int3 after the relocated:
> label exists in bzImage at offset 0x1C3FD7
> 
> EAX holds (for the jump) 0x5379d0 (different bzImage of course). The
> contents of memory at this address is in bzImage at offset 0x1C09D7 - A
> difference of 0x3600 (seems too even to be random)
> 
> I'm obviously doing something hideously wrong, but what?
> 

0x3600 sounds like the size of the real-mode code in bzImage.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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