linux-kernel - Re: linux-next: reservetop fix disables mem=

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Message-ID: <20090919183224.GA3038@elte.hu>
Date:	Sat, 19 Sep 2009 20:32:24 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Hugh Dickins <hugh.dickins@...cali.co.uk>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: linux-next: reservetop fix disables mem=


* Yinghai Lu <yinghai@...nel.org> wrote:

> Yinghai Lu wrote:
> > Ingo Molnar wrote:
> >> I thoroughly zapped it. Do you know about any commit ID where it snuck 
> >> in?
> > 
> > after close looking, it will break
> > 1. some cpu feature  in early stage too, like cpu_has_x2apic
> > 2. will break built-in-command line
> > 3. will break other memmap= and mem=
> > 4. early_dbgp and early_console that will use early_ioremap to access mmio (?)

thanks Yinghai - i have queued up your revert. Thanks Hugh for noticing 
it!

> after revet it, it seem mem=32g etc still broken, maybe some other 
> commit about x86 platform support from Thomas broke it.

Thomas?

	Ingo
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