linux-kernel - Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with preemptible kernel and CPU hotplug

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Message-ID: <48A48086.3010603@novell.com>
Date:	Thu, 14 Aug 2008 14:59:18 -0400
From:	Gregory Haskins <ghaskins@...ell.com>
To:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
CC:	Jeremy Fitzhardinge <jeremy@...p.org>,
	"H. Peter Anvin" <hpa@...or.com>, Andi Kleen <andi@...stfloor.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	Steven Rostedt <rostedt@...dmis.org>,
	Steven Rostedt <srostedt@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Miller <davem@...emloft.net>,
	Roland McGrath <roland@...hat.com>,
	Ulrich Drepper <drepper@...hat.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	"Luis Claudio R. Goncalves" <lclaudio@...g.org>,
	Clark Williams <williams@...hat.com>,
	Christoph Lameter <cl@...ux-foundation.org>
Subject: Re: [RFC PATCH] x86 alternatives : fix LOCK_PREFIX race with	preemptible
 kernel and CPU hotplug

Mathieu Desnoyers wrote:
> * Jeremy Fitzhardinge (jeremy@...p.org) wrote:
>   
>> Mathieu Desnoyers wrote:
>>     
>>> Here are the specs. It's a brand new 64bits dual quad-core (Christmas in
>>> August) :-) None of the specs seems to talk about neither Core2 or
>>> Pentium 4 though. Those appellations seems to hold for desktop
>>> processors, not server processors...
>>>   
>>>       
>> Is it a Dell thingy?  Turns out my main test box has exactly the same 
>> processor.
>>
>>    J
>>     
>
> Nope, it's a custom-made machine from a company in the Montreal area. It
> has a Supermicro X7DAL-E motherboard and, well, I got 16GB of ram in it.
> Pretty useful to take large traces.
>
> Mathieu
>
>
>   

FWIW, I think its a Harpertown:

http://processorfinder.intel.com/details.aspx?sSpec=SLAP2

-Greg


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