From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: [ANNOUNCE] kvm-51 release Date: Tue, 13 Nov 2007 18:15:41 +0200 Message-ID: <4739CDAD.1030506@qumranet.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> <4739CCED.2060105@cisco.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm-devel To: david ahern Return-path: In-Reply-To: <4739CCED.2060105-FYB4Gu1CFyUAvxtiuMwx3w@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 david ahern wrote: > 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'. > > First reboot or first boot? I thought the problem was cold starting a VM. > 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? > > Looks like there's a bug in the apic emulation. There probably are performance implications. Does -no-kvm-irqchip help? -- error compiling committee.c: too many arguments to function ------------------------------------------------------------------------- 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/