Message-ID: <49AAED22.5010700@kernel.org>
Date: Sun, 01 Mar 2009 12:16:34 -0800
From: Yinghai Lu <yinghai@kernel.org>
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To: Brian Maly <bmaly@redhat.com>
CC: Ingo Molnar <mingo@elte.hu>, Huang Ying <ying.huang@intel.com>,
       linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Fix e820 end address with EFI
References: <49A965AD.10701@redhat.com>	 <86802c440902282014he17bb6an1f59872ef30db0c5@mail.gmail.com> <86802c440902282142p14f623b8td8a88600ff2a6bbe@mail.gmail.com> <49AAEC79.3000808@redhat.com>
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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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