From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:54568) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RswYa-0007vF-7f for qemu-devel@nongnu.org; Thu, 02 Feb 2012 08:18:37 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RswYU-00012C-2D for qemu-devel@nongnu.org; Thu, 02 Feb 2012 08:18:32 -0500 Received: from moutng.kundenserver.de ([212.227.126.186]:64114) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RswYT-00011f-QP for qemu-devel@nongnu.org; Thu, 02 Feb 2012 08:18:26 -0500 Date: Thu, 2 Feb 2012 14:18:21 +0100 (CET) From: Erik Rull Message-ID: <1121511920.287287.1328188701663.JavaMail.open-xchange@email.1und1.de> In-Reply-To: <4F29B724.7020008@rdsoftware.de> References: <923364617.199626.1328100735285.JavaMail.open-xchange@email.1und1.de> <4F298C42.6050700@siemens.com> <4F29B724.7020008@rdsoftware.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] git bisect results: ec757c67c40a56492001487e69272f62144fd124 breaks windows boot in qemu-kvm Reply-To: Erik Rull List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Jan Kiszka Cc: "qemu-devel@nongnu.org" , "kvm@vger.kernel.org" , Avi Kivity On February 1, 2012 at 11:05 PM Erik Rull wrote: > 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 Hi Jan, I tested with an ACPI-enabled windows. Results: -no-acpi: Continuous reboots like the no-acpi-windows-version without -no-acpi: boots! So I tested the no-acpi-windows-version without -no-acpi option - still rebooting And without -no-acpi and -no-kvm-irqchip => works again Best regards, Erik