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Date: Fri, 7 Jul 2006 11:39:12 +0200
From: Jens Axboe <qemu@kernel.dk>
Subject: Re: [Qemu-devel] Pentium D with guest Ubuntu 6.06 server kernel panic
	with kqemu
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To: qemu-devel@nongnu.org
Cc: "R. Armiento" <reply-2006@armiento.net>

On Fri, Jul 07 2006, Joachim Henke wrote:
> Yes, this patch was included, but it doesn't solve that problem. As  
> this message [http://www.mail-archive.com/qemu-devel@nongnu.org/ 
> msg03972.html] states, the 'monitor' and the 'mwait' instructions  
> have not been added. But your guest OS assumes them to be present,  
> because your host cpu has the MONITOR flag set in CPUID.
> 
> Jo.
> 
> R. Armiento wrote:
> >The error looks very similar to the one reported here:
> >  http://www.mail-archive.com/qemu-devel@nongnu.org/msg03964.html
> >But I believe that reported issue should not appear in recent qemu,  
> >since SSE3 is now emulated (right?). (At least the patch in the end  
> >of that thread seems to already be included in the sources?)
> >
> >So, my hypothesis is that there is some other feature that appears  
> >in my host CPUID, which the booting linux image tries to make use  
> >of, but which qemu does not emulate.

Until that gets fixed up, you can boot with idle=halt.

-- 
Jens Axboe