From mboxrd@z Thu Jan 1 00:00:00 1970 From: david ahern Subject: Re: [ANNOUNCE] kvm-51 release Date: Tue, 13 Nov 2007 09:12:29 -0700 Message-ID: <4739CCED.2060105@cisco.com> References: <4731F5B5.1000108@qumranet.com> <473435B6.1000503@bppiac.hu> <4736C752.7060703@qumranet.com> <4736FC77.2080804@bppiac.hu> <47371510.3020804@qumranet.com> <47372070.30604@cisco.com> <47372600.9080009@cisco.com> <47373380.8040809@qumranet.com> <47376FB3.30303@cisco.com> <47380C95.1030502@qumranet.com> <4738C9B5.6060609@cisco.com> <4739605A.4010309@qumranet.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm-devel To: Avi Kivity Return-path: In-Reply-To: <4739605A.4010309-atKUWr5tajBWk0Htik3J/w@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 I let the host stay up for 90 minutes before loading kvm and starting a VM. On the first reboot it hangs at 'Starting udev'. I added 'noapic' to the kernel boot options, and it boots fine. (Turns out I only added that to grub.conf in images that run a particular ap for which I am running performance tests.) I would like to know why I need the noapic option to get around this and the networking problem. Are there performance hits as a side effect? david Avi Kivity wrote: > david ahern wrote: >> With kvm-52 my 32-bit host running RHEL5.1 can start an RHEL 5 SMP guest only once. Second and subsequent attempts hang. Removing kvm and kvm_intel modules have no affect; I need to reboot the host to get an SMP guest to start. My similarly configured 64-bit host does not seem to have this problem. >> >> >> > > What happens if you boot a host, wait a while (say a couple of hours), > and then start a guest? > > (I'm suspecting unsynchronized tscs) > ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/