linux-kernel - Re: [PATCH 0/2 v2] perf-kvm support for SVM

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Message-ID: <4D3310E3.9020909@redhat.com>
Date:	Sun, 16 Jan 2011 17:38:11 +0200
From:	Avi Kivity <avi@...hat.com>
To:	Joerg Roedel <joro@...tes.org>
CC:	Joerg Roedel <joerg.roedel@....com>,
	Marcelo Tosatti <mtosatti@...hat.com>, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/2 v2] perf-kvm support for SVM

On 01/16/2011 05:35 PM, Joerg Roedel wrote:
> On Sun, Jan 16, 2011 at 12:49:41PM +0200, Avi Kivity wrote:
> >  On 01/14/2011 05:45 PM, Joerg Roedel wrote:
>
> >>  here is the reworked version of the patch-set. Only patch 1/2 has
> >>  changed and now contains the real fix for the crashes that were seen and
> >>  has an updated log message.
> >>
> >
> >  Thanks, applied.  2.6.37 and earlier aren't affected, yes?  So I'm
> >  queuing it for 2.6.38 only.
>
> I think the problem is there since KVM has lazy state switching. So the
> fix in patch 1 should make it in all currently maintained stable-trees.
>

The problem is with load_gs_index(), yes?  In 2.6.37 this is called 
before stgi(), so it's protected from nmi.

-- 
error compiling committee.c: too many arguments to function

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