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Date: Tue, 15 Nov 2005 08:14:29 -0800
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Dave Jones <davej@redhat.com>
CC: Arjan van de Ven <arjan@infradead.org>, Zachary Amsden <zach@vmware.com>,
       Gerd Knorr <kraxel@suse.de>, Linus Torvalds <torvalds@osdl.org>,
       Pavel Machek <pavel@ucw.cz>, Andrew Morton <akpm@osdl.org>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Zwane Mwaikambo <zwane@arm.linux.org.uk>,
       Pratap Subrahmanyam <pratap@vmware.com>,
       Christopher Li <chrisl@vmware.com>,
       "Eric W. Biederman" <ebiederm@xmission.com>,
       Ingo Molnar <mingo@elte.hu>
Subject: Re: [PATCH 1/10] Cr4 is valid on some 486s
References: <Pine.LNX.4.64.0511111218110.4627@g5.osdl.org> <20051113074241.GA29796@redhat.com> <Pine.LNX.4.64.0511131118020.3263@g5.osdl.org> <Pine.LNX.4.64.0511131210570.3263@g5.osdl.org> <4378A7F3.9070704@suse.de> <Pine.LNX.4.64.0511141118000.3263@g5.osdl.org> <4379ECC1.20005@suse.de> <437A0649.7010702@suse.de> <437A0710.4020107@vmware.com> <1132070764.2822.27.camel@laptopd505.fenrus.org> <20051115161041.GA1749@redhat.com>
In-Reply-To: <20051115161041.GA1749@redhat.com>
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Dave Jones wrote:
> On Tue, Nov 15, 2005 at 05:06:03PM +0100, Arjan van de Ven wrote:
>  
>  > > You still need to preserve the originals so that you can patch in both 
>  > > directions.  
>  > 
>  > why do you insist on both directions? That still sounds like real
>  > overkill to me.
> 
> cpu hotplug going from UP to SMP ? :)
> 

If you have CPU hotplug enabled, you can run SMP code!

	-hpa
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