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Date: Tue, 1 Sep 2015 15:56:36 +0200
From: Markus Trippelsdorf <markus@trippelsdorf.de>
To: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Cc: Ingo Molnar <mingo@kernel.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        linux-kernel@vger.kernel.org, Peter Zijlstra <a.p.zijlstra@chello.nl>,
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        Andrew Morton <akpm@linux-foundation.org>,
        Mike Galbraith <efault@gmx.de>, Joerg Roedel <jroedel@suse.de>,
        Paolo Bonzini <pbonzini@redhat.com>, kvm@vger.kernel.org
Subject: Re: commit 3c2e7f7de3 (KVM use NPT page attributes) causes boot
 failures
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On 2015.09.01 at 21:00 +0800, Xiao Guangrong wrote:
> 
> Did it trigger the BUG()/BUG_ON() in mtrr2protval()/fallback_mtrr_type()?
> If yes, could you please print the actual value out?

It is the BUG() in fallback_mtrr_type(). I changed it to a printk and
it prints 1 for the value of mtrr.

 MTRR_TYPE_WRCOMB     1

-- 
Markus