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Date:	Sun, 01 Mar 2009 12:16:34 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Brian Maly <bmaly@...hat.com>
CC:	Ingo Molnar <mingo@...e.hu>, Huang Ying <ying.huang@...el.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Fix e820 end address with EFI

Brian Maly wrote:
> I was able verify the kernel that does not boot on the MacBook (vanilla
> 2.6.29-rc4) does call efi_ioremap() which bails out early returning
> NULL. So no remapping happens in this case.  I have no idea if
> efi_ioremap ever does succeed in mapping any ranges though being I have
> no video or console this early in the boot and have to rely on triple
> faulting as a means of debugging.

earlyprintk=vga should work at that point....

YH
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