From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anthony Liguori Subject: Re: rtc: lost some interrupts at 1024Hz. Date: Fri, 13 Apr 2007 10:10:23 -0500 Message-ID: <461F9D5F.1090009@codemonkey.ws> References: <461F70FF.9010704@wpkg.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org To: Tomasz Chmielewski Return-path: In-Reply-To: <461F70FF.9010704-Nem3ZqsbT/g@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: kvm.vger.kernel.org Tomasz Chmielewski wrote: > Whenever I start a guest, I get kernel log filled with "rtc: lost some > interrupts at 1024Hz". > Does rebooting the host machine with nolapic on the kernel command line help? What sort of system are you using? Regards, Anthony Liguori > What's the reason for it? > > > I searched the archives, and it looks that this problem did already > happen for a couple of people. > > Also in my case, it looks that KVM is not the problem here, but Qemu. > > > Searching Qemu forums revealed one such report with no reply[1]. > > Searching Qemu-devel list revealed one report, with no solution[2] > > Because of that, the performance is really bad. > > Is there a solution for that? I use kvm-intel, if needed, I can attach > kernel .config. > > > [1] http://qemu-forum.ipi.fi/viewtopic.php?t=1468 > [2] http://lists.gnu.org/archive/html/qemu-devel/2006-07/threads.html#00193 > > > ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV