linux-kernel - Re: 2.6.31.5 x86-64 KVM: 'emulation failed (pagetable) rip 7fb49335da7b 66 0f 7f 07'

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Date:	Mon, 30 Nov 2009 10:15:12 +0200
From:	Avi Kivity <avi@...hat.com>
To:	Nix <nix@...eri.org.uk>
CC:	kvm@...r.kernel.org,
	Linux-Kernel-Mailing-List <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.31.5 x86-64 KVM: 'emulation failed (pagetable) rip 7fb49335da7b
 66 0f 7f 07'

On 11/30/2009 01:31 AM, Nix wrote:
> On 29 Nov 2009, Avi Kivity stated:
>    
>> Most likely, either this or something similar is called on a userspace
>> device driver.  Can you check if this is triggered by starting X?
>>      
> *sigh* I just wasted twenty minutes trying to find some way, *any* way
> to not start X under Ubuntu Karmic, so as to test this. None is evident.
> I can't even figure out what and where in upstart's horrific dependency
> tangle is starting X in the first place: deleting suspicious-looking
> things from rc*.d has no effect at all. I can't even tell if rc*.d is
> still used, nor if the concept of runlevel is even meaningful any
> longer. There are lots of things googleable that claim to say how to do
> this, but all relate to the non-dependency-based inittab-emulating
> method used in previous Ubuntu versions.
>
> Anyone know?
>    

At least on Fedora, you you can change the runlevel in /etc/inittab (the 
sole remaining function of the file).

-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

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