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Date: Mon, 12 Dec 2011 04:11:50 +0100
From: Ingo Molnar <mingo@elte.hu>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
        Keith Packard <keithp@keithp.com>, linux-kernel@vger.kernel.org,
        Matt Fleming <matt.fleming@intel.com>,
        Matthew Garrett <mjg@redhat.com>, Zhang Rui <rui.zhang@intel.com>,
        Huang Ying <huang.ying.caritas@gmail.com>,
        Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH] Revert "x86, efi: Calling __pa() with an ioremap()ed
 address is invalid"
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* H. Peter Anvin <hpa@zytor.com> wrote:

> > That said, if you've verified that if fails for you, I guess 
> > we should revert regardless. Matt, any suggestions for tests 
> > to do?
> > 
> 
> Also... I'd like to know what machines, if any, would break 
> without the patch, so we can figure out what has to be tested.

The offending commit has this bugzilla:

        https://bugzilla.redhat.com/show_bug.cgi?id=748516

Which says this about the orignal failing system:

| Additional info:
| From the affected system:
| dmidecode | grep -i product
|  Product Name: MacBookAir1,1
|  Product Name: Mac-F42C8CC8

Thanks,

	Ingo