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Date: Wed, 6 Dec 2006 12:50:50 -0700
From: Matthew Wilcox <matthew@wil.cx>
Subject: Re: [PATCH] WorkStruct: Implement generic UP cmpxchg() where an arch doesn't support it
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References: <20061206164314.19870.33519.stgit@warthog.cambridge.redhat.com> <Pine.LNX.4.64.0612061054360.27047@schroedinger.engr.sgi.com> <Pine.LNX.4.64.0612061103260.3542@woody.osdl.org> <20061206192647.GW3013@parisc-linux.org> <Pine.LNX.4.64.0612061128340.27363@schroedinger.engr.sgi.com> <20061206193641.GY3013@parisc-linux.org> <Pine.LNX.4.64.0612061147000.27534@schroedinger.engr.sgi.com>
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To: Christoph Lameter <clameter@sgi.com>
Cc: Linus Torvalds <torvalds@osdl.org>, Russell King <rmk+lkml@arm.linux.org.uk>, David Howells <dhowells@redhat.com>, Andrew Morton <akpm@osdl.org>, linux-arm-kernel@lists.arm.linux.org.uk, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, linux-arch@vger.kernel.org
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On Wed, Dec 06, 2006 at 11:47:40AM -0800, Christoph Lameter wrote:
> Nope this is a UP implementation. There is no cpu B.

Follow the thread back.  I'm talking about parisc.  Machines exist (are
still being sold) with up to 128 cores.  I think the largest we've
confirmed work are 8 CPUs.