From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1O3klB-0006FT-Ty for qemu-devel@nongnu.org; Mon, 19 Apr 2010 02:47:09 -0400 Received: from [140.186.70.92] (port=34764 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1O3kl9-0006FL-IM for qemu-devel@nongnu.org; Mon, 19 Apr 2010 02:47:08 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1O3kl8-0007Xm-B3 for qemu-devel@nongnu.org; Mon, 19 Apr 2010 02:47:07 -0400 Received: from chello084112167138.7.11.vie.surfer.at ([84.112.167.138]:39491 helo=wiesinger.com) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1O3kl7-0007Kw-Sv for qemu-devel@nongnu.org; Mon, 19 Apr 2010 02:47:06 -0400 Date: Mon, 19 Apr 2010 08:45:18 +0200 (CEST) From: Gerhard Wiesinger In-Reply-To: <4BC49CB4.2060200@siemens.com> Message-ID: References: <20100412120739.GC18075@shareable.org> <4BC49CB4.2060200@siemens.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Subject: [Qemu-devel] Re: Problem with QEMU on KVM List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Jan Kiszka Cc: Mulyadi Santosa , qemu-devel@nongnu.org On Tue, 13 Apr 2010, Jan Kiszka wrote: > Mulyadi Santosa wrote: >> Hi Jamie... >> >> On Mon, Apr 12, 2010 at 19:07, Jamie Lokier 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). Thnx. Ciao, Gerhard -- http://www.wiesinger.com/