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Subject: Re: [PATCH] a patch to fix the cpu-offline-online problem caused
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From: Peter Zijlstra <peterz@infradead.org>
To: Luming Yu <luming.yu@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>, Len Brown <lenb@kernel.org>,
        "H. Peter Anvin" <hpa@zytor.com>, tglx <tglx@linutronix.de>
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Date: Mon, 31 Jan 2011 11:48:25 +0100
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On Sun, 2011-01-30 at 22:26 -0500, Luming Yu wrote:
> 
> Booting Node 3 Processor 59 APIC 0x75
> Clocksource tsc unstable (delta = -77316000544 ns)
> Switching to clocksource hpet 

I think that's known NHM-EX suckage, it does all kinds of stupid things
in deeper C states that other NHM/WSM chips don't do.