From mboxrd@z Thu Jan 1 00:00:00 1970 From: Erik Rull Subject: Re: git bisect results: ec757c67c40a56492001487e69272f62144fd124 breaks windows boot in qemu-kvm Date: Wed, 01 Feb 2012 23:05:24 +0100 Message-ID: <4F29B724.7020008@rdsoftware.de> References: <923364617.199626.1328100735285.JavaMail.open-xchange@email.1und1.de> <4F298C42.6050700@siemens.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: "kvm@vger.kernel.org" , "qemu-devel@nongnu.org" , Avi Kivity To: Jan Kiszka Return-path: Received: from moutng.kundenserver.de ([212.227.17.8]:61735 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753669Ab2BAWFX (ORCPT ); Wed, 1 Feb 2012 17:05:23 -0500 In-Reply-To: <4F298C42.6050700@siemens.com> Sender: kvm-owner@vger.kernel.org List-ID: Jan Kiszka wrote: > On 2012-02-01 13:52, Erik Rull wrote: >> Hi all, >> >> first of all I'm a bit confused: >> >> What is the difference between qemu with command line option --enable-kvm >> and qemu-kvm? >> It seems to be a difference in code so far, from the performance point of >> view it seems to be the same... >> >> Now my issue that lead me to a git bisect on qemu-kvm: >> The following commit / merge breaks my windows guest boot sequence and >> causes resets infinitely: > > Cannot confirm yet, but I have no ACPI-free Windows installation at > hand. Where does it reset, after the BIOS? > >> ec757c67c40a56492001487e69272f62144fd124 Merge branch 'upstream-merge' into >> next >> Thu, 5 Jan 2012 11:00:07 +0000 (13:00 +0200) Avi Kivity >> >> >> Interesting: qemu with --enable-kvm master and the same command line >> options as qemu-kvm runs perfect. >> My command line options are: >> qemu-system-x86_64 -serial /dev/ttyS2 -readconfig /etc/ich9-ehci-uhci.cfg >> -device usb-host,bus=ehci.0 -device usb-tablet -drive >> file=/dev/sda2,cache=off -m 1024 -net nic,macaddr=$MACADDR -net >> tap,script=/etc/qemu-ifup -no-acpi -monitor stdio -L /usr/X11R6/share/qemu >> -boot c -localtime > > Is the BIOS at /usr/X11R6/share/qemu in sync with the qemu version you > try? Does leaving out options change the picture? > > Jan > It happens directly after the windows boot progress bar is completed (I boot without logo) With the -no-kvm-irqchip it seems to be fine... Best regards, Erik