linux-kernel - Re: [RFC/PATCH v2 02/10] x86

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Message-ID: <20140911044650.GN4120@two.firstfloor.org>
Date:	Thu, 11 Sep 2014 06:46:50 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Sasha Levin <sasha.levin@...cle.com>,
	Dave Hansen <dave.hansen@...el.com>,
	Andrey Ryabinin <ryabinin.a.a@...il.com>,
	Andrey Ryabinin <a.ryabinin@...sung.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Dmitry Vyukov <dvyukov@...gle.com>,
	Konstantin Serebryany <kcc@...gle.com>,
	Dmitry Chernenkov <dmitryc@...gle.com>,
	Andrey Konovalov <adech.fo@...il.com>,
	Yuri Gribov <tetra2005@...il.com>,
	Konstantin Khlebnikov <koct9i@...il.com>,
	Christoph Lameter <cl@...ux.com>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Andi Kleen <andi@...stfloor.org>,
	Vegard Nossum <vegard.nossum@...il.com>,
	"x86@...nel.org" <x86@...nel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>
Subject: Re: [RFC/PATCH v2 02/10] x86_64: add KASan support

On Wed, Sep 10, 2014 at 09:33:11PM -0700, H. Peter Anvin wrote:
> On 09/10/2014 09:29 PM, Sasha Levin wrote:
> > On 09/11/2014 12:26 AM, H. Peter Anvin wrote:
> >> Except you just broke PVop kernels.
> > 
> > So is this why v2 refuses to boot on my KVM guest? (was digging
> > into that before I send a mail out).
> > 
> 
> No, KVM should be fine.  It is Xen PV which ends up as a smoldering crater.

Just exclude it in Kconfig? I assume PV will eventually go away anyways.

-Andi
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