linux-kernel - Re: [BUG] kvm: guest can not startup due to triple fault

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Message-ID: <4CBC4B06.3030300@redhat.com>
Date:	Mon, 18 Oct 2010 15:26:30 +0200
From:	Avi Kivity <avi@...hat.com>
To:	Dave Young <hidave.darkstar@...il.com>
CC:	Jan Kiszka <jan.kiszka@....de>, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [BUG] kvm: guest can not startup due to triple fault

  On 10/18/2010 02:58 PM, Dave Young wrote:
> >
> >  It's secondary_startup_64 enabling efer.sce and efer.nx.
> >
> >  Dave, please post your /proc/cpuinfo.  Is your host running with NX
> >  disabled?
>
> I see nx bit in /proc/cpuinfo, Actually I don't know how to disable it.

Strange.

Please patch arch/x86/kvm/x86.c to printk efer_reserved_bits (a global), 
efer (an argument) and old_efer (a local), and post the results.

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

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