From mboxrd@z Thu Jan 1 00:00:00 1970 From: Zachary Amsden Subject: kvm-kmod broken with user-return-notifiers Date: Wed, 28 Oct 2009 13:53:40 -1000 Message-ID: <4AE8D984.3030906@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit To: kvm@vger.kernel.org, Avi Kivity , Jan Kiszka Return-path: Received: from mx1.redhat.com ([209.132.183.28]:31951 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752711AbZJ1XxY (ORCPT ); Wed, 28 Oct 2009 19:53:24 -0400 Sender: kvm-owner@vger.kernel.org List-ID: With current upstream changes, VMX operation now relies on have the user-notifiers infrastructure. This makes kvm-kmod use on older kernels untenable. I looked a bit at fixing the underlying problem by simulating the user-return callback when we context switch, but it is uglier than I would like. Is anyone currently working on a fix? This is blocking my development work, so if there is no action it looks like I will have to fix it myself. Thanks, Zach