From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=50207 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PpjGi-0000qb-S6 for qemu-devel@nongnu.org; Wed, 16 Feb 2011 10:26:17 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1PpjGh-00034k-Ii for qemu-devel@nongnu.org; Wed, 16 Feb 2011 10:26:16 -0500 Received: from adelie.canonical.com ([91.189.90.139]:48156) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1PpjGh-00034X-Bm for qemu-devel@nongnu.org; Wed, 16 Feb 2011 10:26:15 -0500 Received: from loganberry.canonical.com ([91.189.90.37]) by adelie.canonical.com with esmtp (Exim 4.71 #1 (Debian)) id 1PpjGf-00004t-3c for ; Wed, 16 Feb 2011 15:26:13 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id 100CC2E8107 for ; Wed, 16 Feb 2011 15:26:08 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Wed, 16 Feb 2011 15:16:33 -0000 From: Steve Conklin <688085@bugs.launchpad.net> Sender: bounces@canonical.com References: <20101209150919.20263.50551.malonedeb@wampee.canonical.com> Message-Id: <20110216151636.31815.23845.launchpad@potassium.ubuntu.com> Errors-To: bounces@canonical.com Subject: [Qemu-devel] [Bug 688085] Re: Guest kernel hang during boot when KVM is active on i386 host Reply-To: Bug 688085 <688085@bugs.launchpad.net> List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org ** Changed in: linux (Ubuntu) Status: Fix Committed =3D> Fix Released -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/688085 Title: Guest kernel hang during boot when KVM is active on i386 host Status in meego project: In Progress Status in QEMU: Fix Released Status in qemu-kvm: Fix Released Status in =E2=80=9Ckvm=E2=80=9D package in Ubuntu: Invalid Status in =E2=80=9Clinux=E2=80=9D package in Ubuntu: Fix Released Status in =E2=80=9Cqemu=E2=80=9D package in Ubuntu: Invalid Status in =E2=80=9Cqemu-kvm=E2=80=9D package in Ubuntu: Invalid Status in =E2=80=9Ckvm=E2=80=9D source package in Maverick: New Status in =E2=80=9Clinux=E2=80=9D source package in Maverick: New Status in =E2=80=9Cqemu=E2=80=9D source package in Maverick: New Status in =E2=80=9Cqemu-kvm=E2=80=9D source package in Maverick: New Bug description: Binary package hint: qemu Guest kernel hang during boot when KVM is active on i386 host See the patch. http://www.spinics.net/lists/kvm/msg40800.html How to reproduce: 1. install Maversick x86 (not amd64) 2. ensure you have kvm support in processor 3. kvm -kernel /boot/initrd.img-2.6.35-24-generic-pae 4. kvm -no-kvm -kernel /boot/initrd.img-2.6.35-24-generic-pae works OK. SRU Justification: Impact: Users cannot boot KVM guests on i386 hosts 2. How bug addressed: The upstream commit at http://www.spinics.net/list= s/kvm/msg40800.html fixed it 3. Patch: A kernel patch is attached to this bug. 4. Reproduce: boot an i386 kernel on a kvm-capable host. Try to boot a k= vm guest. 5. Regression potential: since this is cherrypicking a commit from a futu= re upstream which had already been changed, regression is possible. Howeve= r if there is a regression, it should only affect users of KVM on i386 host= s, which currently fail anyway.