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Date: Thu, 8 Jul 2010 12:17:53 +0200
From: Ingo Molnar <mingo@elte.hu>
To: Lin Ming <ming.m.lin@intel.com>, "H. Peter Anvin" <hpa@zytor.com>,
       Thomas Gleixner <tglx@linutronix.de>
Cc: a.p.zijlstra@chello.nl, ling.ma@intel.com, linux-kernel@vger.kernel.org
Subject: Re: -tip tree panic
Message-ID: <20100708101753.GA32462@elte.hu>
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* Lin Ming <ming.m.lin@intel.com> wrote:

> I just tried latest -tip tree(commit 25fe86a), but it panics.

These commits might be relevant:

 bdc802d: x86, cpu: Support the features flags in new CPUID leaf 7
 83a7a2a: x86, alternatives: Use 16-bit numbers for cpufeature index
 24da9c2: x86, cpu: Add CPU flags for F16C and RDRND

So you could try reverting them. If that doesnt work out please try to bisect 
it.

Thanks,

	Ingo