linux-kernel - Re: i387/FPU init issues...

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Message-ID: <481CB6E5.7010009@zytor.com>
Date:	Sat, 03 May 2008 12:03:01 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Mikael Pettersson <mikpe@...uu.se>
CC:	Thomas Gleixner <tglx@...utronix.de>, jamal <hadi@...erus.ca>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	Ingo Molnar <mingo@...e.hu>,
	LKML <linux-kernel@...r.kernel.org>,
	Jan Beulich <jbeulich@...ell.com>
Subject: Re: i387/FPU init issues...

Mikael Pettersson wrote:
> 
> Are you absolutely sure it's this 3-byte NOP that oopses?
> 
> I also noticed that jamal's /proc/cpuinfo contains
>> cpu MHz         : 1063.771
> which is either wrong or indicates serious overclocking.
> The PIIs maxed out at about 400/450MHz.
> 

Good spotting, and yes, the roof for Pentium II was 450 MHz.  Pentium II 
had a TSC, so it shouldn't be wrong unless there wasn't a bigger 
timekeeping error on this platform.

Jamal, can you clarify?

	-hpa
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