From mboxrd@z Thu Jan  1 00:00:00 1970
From: Chris Clayton <chris2553@googlemail.com>
Subject: Re: qemu-kvm-1.1.0 crashing with kernel 3.5.0-rc6
Date: Sun, 29 Jul 2012 16:21:55 +0100
Message-ID: <50155513.9060602@googlemail.com>
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Cc: Eric Northup <digitaleric@google.com>, kvm@vger.kernel.org,
	Gleb Natapov <gleb@redhat.com>,
	Jan Kiszka <jan.kiszka@siemens.com>
To: Avi Kivity <avi@redhat.com>
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On 07/29/12 15:48, Avi Kivity wrote:
> On 07/29/2012 05:18 PM, Avi Kivity wrote:
>>>
>>> I think you are saying that the problem isn't in kvm, so where would you
>>> recommend I continue investigations. I'm not seeing a crash with any
>>> other applications.
>>
>> What might have happened is that the movdqu instruction faulted (as it's
>> an fpu instruction), and on the way back from the fault, ds and es
>> didn't get restored correctly.
>>
>> You can test this by writing a trivial version of g_str_equal()
>> somewhere in the qemu source code and rebuilding it.
>
> You're running a 32-bit kernel, yes?  Please confirm.
>
>
Yes, I am running a 32-bit kernel and userland.