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

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Message-ID: <AANLkTi=JJHfw4fvL+RjBkJ0UuSD_j1eiTMj2Bc7_bAHC@mail.gmail.com>
Date:	Mon, 18 Oct 2010 22:17:05 +0800
From:	Dave Young <hidave.darkstar@...il.com>
To:	Avi Kivity <avi@...hat.com>
Cc:	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	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 Mon, Oct 18, 2010 at 10:15 PM, Dave Young <hidave.darkstar@...il.com> wrote:
> On Mon, Oct 18, 2010 at 10:13 PM, Avi Kivity <avi@...hat.com> wrote:
>>  On 10/18/2010 04:11 PM, Dave Young wrote:
>>>
>>> On Mon, Oct 18, 2010 at 10:06 PM, Avi Kivity<avi@...hat.com>  wrote:
>>> >    On 10/18/2010 03:58 PM, Dave Young wrote:
>>> >>
>>> >>  >
>>> >>  >    Please patch hardware_setup() to show the value of
>>> >>  >    boot_cpu_has(X86_FEATURE_NX).
>>> >>
>>> >>  It's 0
>>>
>>> Please wait, I reply too quick, actually it boots two times fine then
>>> one time fail.
>>
>> What boots fine?  The guest?
>
> Yes the guest
>
>>
>>> The printk only happen once. So to make sure the result I retested
>>> several times, can not get the print as well.
>>
>> boot_cpu_has() is called only when the kvm module is inserted.
>
> Oh, then I need to test again.

I'm lucky, this time I can make sure has_nx = 0

after insmod, guest boot failed at the first test
>
>>
>> --
>> error compiling committee.c: too many arguments to function
>>
>>
>
>
>
> --
> Regards
> dave
>



-- 
Regards
dave
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