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To: Jeff Dike <jdike@addtoit.com>
Cc: linux-kernel@vger.kernel.org, user-mode-linux-devel@lists.sourceforge.net,
       Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Subject: Re: [PATCH 4/9] UML - Mark SMP on UML/x86_64 as broken
References: <200508292007.j7TK72Or029927@ccure.user-mode-linux.org>
From: Andi Kleen <ak@suse.de>
Date: 30 Aug 2005 22:42:15 +0200
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Jeff Dike <jdike@addtoit.com> writes:

> Noticed by Al Viro - SMP on x86_64 is fundamentally broken due to
> UML's reuse of the host arch's percpu stuff.  This is OK on x86, but
> the x86_64 pda stuff just won't work for UML.

The generic one should work too, it's just less efficient.
So you can probably easily replace them.

-Andi