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Date: Sat, 28 Feb 2009 00:08:05 -0800
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Yinghai Lu <yinghai@kernel.org>
CC: Cyrill Gorcunov <gorcunov@gmail.com>, Ingo Molnar <mingo@elte.hu>,
       Jeremy Fitzhardinge <jeremy@goop.org>,
       the arch/x86 maintainers <x86@kernel.org>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Subject: Re: does boot loader check uncompressed kernel size?
References: <1235785882-17580-1-git-send-email-jeremy@goop.org>	 <1235785882-17580-4-git-send-email-jeremy@goop.org>	 <86802c440902272302n3787b2bex3741b46a372a19b0@mail.gmail.com>	 <49A8E235.6010900@goop.org> <20090228071534.GB9351@elte.hu>	 <49A8EA1A.50802@kernel.org> <20090228074740.GA7581@localhost> <86802c440902272354s147aa88x2be99b48f2097b67@mail.gmail.com>
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Yinghai Lu wrote:
> On Fri, Feb 27, 2009 at 11:47 PM, Cyrill Gorcunov <gorcunov@gmail.com> wrote:
>> [Yinghai Lu - Fri, Feb 27, 2009 at 11:39:06PM -0800]
>> | wonder if boot loader check uncompress size aka vmlinux size in bzImage
>> | before it find one good position for bzImage...?
>> |
>> | YH
>> |
>>
>> At least for x86-64 in grub-1.96 I didn't find such a check.
>> Btw, but why should it care? Or you mean something else?
> 
> thinking about Jeremy's brk patches that may use ram after _end blindly...
> 

We already do that.  Jeremy's brk patches just formalizes it.

	-hpa