From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43)
	id 1O3oNr-0002Vy-K1
	for qemu-devel@nongnu.org; Mon, 19 Apr 2010 06:39:19 -0400
Received: from [140.186.70.92] (port=55860 helo=eggs.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1O3oNn-0002SB-Ii
	for qemu-devel@nongnu.org; Mon, 19 Apr 2010 06:39:19 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69)
	(envelope-from <jan.kiszka@siemens.com>) id 1O3oNg-0001lO-30
	for qemu-devel@nongnu.org; Mon, 19 Apr 2010 06:39:12 -0400
Received: from thoth.sbs.de ([192.35.17.2]:20667)
	by eggs.gnu.org with esmtp (Exim 4.69)
	(envelope-from <jan.kiszka@siemens.com>) id 1O3oNd-0001ip-O8
	for qemu-devel@nongnu.org; Mon, 19 Apr 2010 06:39:07 -0400
Message-ID: <4BCC32C4.9000701@siemens.com>
Date: Mon, 19 Apr 2010 12:39:00 +0200
From: Jan Kiszka <jan.kiszka@siemens.com>
MIME-Version: 1.0
References: <alpine.LFD.2.00.1003310637420.8916@bbs.intern>
	<m2yf284c33d1004110319oe1dcb98fy7579ddfeb3691708@mail.gmail.com>
	<alpine.LFD.2.00.1004111540580.20001@bbs.intern>
	<o2uf284c33d1004120216za6ec44d3o11cd69dd3f1f2942@mail.gmail.com>
	<20100412120739.GC18075@shareable.org>
	<o2tf284c33d1004121728j734544e7lc1bdf1863b9d34f3@mail.gmail.com>
	<4BC49CB4.2060200@siemens.com>
	<alpine.LFD.2.00.1004190842190.16477@bbs.intern>
In-Reply-To: <alpine.LFD.2.00.1004190842190.16477@bbs.intern>
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Subject: [Qemu-devel] Re: Problem with QEMU on KVM
List-Id: qemu-devel.nongnu.org
List-Unsubscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/pipermail/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: Gerhard Wiesinger <lists@wiesinger.com>
Cc: Mulyadi Santosa <mulyadi.santosa@gmail.com>, "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>

Gerhard Wiesinger wrote:
> On Tue, 13 Apr 2010, Jan Kiszka wrote:
> 
>> Mulyadi Santosa wrote:
>>> Hi Jamie...
>>>
>>> On Mon, Apr 12, 2010 at 19:07, Jamie Lokier <jamie@shareable.org> wrote:
>>>> There are various -no-kvm-XXX options to try:
>>>>
>>>> -no-kvm-irqchip disable KVM kernel mode PIC/IOAPIC/LAPIC
>>>> -no-kvm-pit     disable KVM kernel mode PIT
>>>> -no-kvm-pit-reinjection disable KVM kernel mode PIT interrupt reinjection
>>> I try to read the source code without too much luck understanding the
>>> meaning of the above parameters, especially the reinjection. Please
>>> CMIIW, interrupt reinjection is a way to handle lost ticks, right?
>> Those switches only exist in the qemu-kvm branch. The fact that
>> -enable-kvm has some effect for you makes me think that you tried
>> upstream KVM support (ie. the one that comes with vanilla QEMU), right?
>>
> 
> I tried 0.12.3 stable and also qemu git master:
> http://git.savannah.gnu.org/cgit/qemu.git/log/
> 
>> It would be interesting to check if you can reproduce the problem also
>> with qemu-kvm(-0.12.3 or git head). As you may also face an issue of the
>> kvm kernel bits, it would be furthermore helpful to check with the
>> latest kernel from kvm.git or the modules build via kvm-kmod as well.
> 
> Can you please post links to the different git repositories, since a lot 
> of different repositories exist here (qemu-kvm and kernel).

http://www.linux-kvm.org/page/Code

HTH,
Jan

-- 
Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux