linux-kernel - brk patches..

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Message-ID: <49A8ED3D.1060704@kernel.org>
Date:	Fri, 27 Feb 2009 23:52:29 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>
CC:	Jeremy Fitzhardinge <jeremy@...p.org>,
	the arch/x86 maintainers <x86@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>
Subject: brk patches..

Yinghai Lu wrote:
> wonder if boot loader check uncompress size aka vmlinux size in bzImage
> before it find one good position for bzImage...?
> 

Jeremy's brk patches may break:
1. kexec load 64bit vmlinux on some ram that near the memory hole etc.
blindly to use ram after _end may have some problem
2. coreboot aka linux is using elf (by mkelfImage : vmlinux + initrd), initrd became one section after _end...
could cause initrd get overwrite... by extend _brk

YH
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