From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754363AbZB1IRr (ORCPT ); Sat, 28 Feb 2009 03:17:47 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753658AbZB1IRc (ORCPT ); Sat, 28 Feb 2009 03:17:32 -0500 Received: from gw.goop.org ([64.81.55.164]:43840 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753609AbZB1IRb (ORCPT ); Sat, 28 Feb 2009 03:17:31 -0500 Message-ID: <49A8F319.3030802@goop.org> Date: Sat, 28 Feb 2009 00:17:29 -0800 From: Jeremy Fitzhardinge User-Agent: Thunderbird 2.0.0.19 (X11/20090105) MIME-Version: 1.0 To: Yinghai Lu CC: Ingo Molnar , "H. Peter Anvin" , the arch/x86 maintainers , Linux Kernel Mailing List , Jeremy Fitzhardinge Subject: Re: brk patches.. 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> <49A8ED3D.1060704@kernel.org> In-Reply-To: <49A8ED3D.1060704@kernel.org> X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Yinghai Lu wrote: > 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 > But its no different from what i386 does now to allocate its initial pagetables. How does this not break now? J