From mboxrd@z Thu Jan 1 00:00:00 1970 From: TJ Subject: Bug: cpu0 unhandled rdmsr: 0x1900 and inject_general_protection Date: Thu, 08 Nov 2007 12:07:30 +0000 Message-ID: <1194523650.20087.16.camel@hephaestion> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Return-path: 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 Trying to run the latest OLPC XO guest image with kvm-intel on 2.6.22 x86_64 (Ubuntu Gutsy) on a T7200 there are critical problems which don't occur if kvm-intel is not loaded/used. The same issue affects kvm-48, kvm-50 and kvm-51. I don't see these problems with Gutsy or Windows guests. The issues are: 1. Start-up of the image into GRUB is _slow_. The cursor can be seen scanning as the GRUB menu is drawn. It is *much* faster when kvm-intel isn't loaded/used. 2. After choosing a boot option the guest freezes and the host kern.log reports: kernel: [88380.014893] kvm: 12666: cpu0 unhandled rdmsr: 0x1900 kernel: [88380.014900] inject_general_protection: rip 0xc07211ab 3. Guest locks up at this point with host CPU being driven 100% and requires killing. I'm guessing they may be related to the OLPC kernel expecting an AMD Geode CPU? ./include/asm-i386/msr.h #define MSR_GEODE_BUSCONT_CONF0 0x1900 The OLPC disk image and configuration instructions are here: http://wiki.laptop.org/go/Emulating_the_XO/Quick_Start The configuration used here is: vdeq kvm -m 256 -hda olpc-redhat-stream-development-devel_ext3.ovl -soundhw es1370 -net nic,model=rtl8139,macaddr=56:44:45:30:32:31,vlan=0 -net vde,vlan=0 Is this a known issue - I couldn't find anything similar in searches of the mailing-list or bug-tracker ? Thanks. TJ. ------------------------------------------------------------------------- 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/