From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754933Ab2CHLNT (ORCPT ); Thu, 8 Mar 2012 06:13:19 -0500 Received: from mx1.redhat.com ([209.132.183.28]:22953 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752679Ab2CHLNQ (ORCPT ); Thu, 8 Mar 2012 06:13:16 -0500 Message-ID: <4F58943E.1050402@redhat.com> Date: Thu, 08 Mar 2012 13:13:02 +0200 From: Avi Kivity User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.1) Gecko/20120216 Thunderbird/10.0.1 MIME-Version: 1.0 To: Wen Congyang CC: kvm list , qemu-devel , "linux-kernel@vger.kernel.org" , "Daniel P. Berrange" , KAMEZAWA Hiroyuki , Jan Kiszka , Gleb Natapov Subject: Re: [PATCH 0/2 v3] kvm: notify host when guest panicked References: <4F58664D.1070800@cn.fujitsu.com> In-Reply-To: <4F58664D.1070800@cn.fujitsu.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 03/08/2012 09:57 AM, Wen Congyang wrote: > We can know the guest is paniced when the guest runs on xen. > But we do not have such feature on kvm. > > Another purpose of this feature is: management app(for example: > libvirt) can do auto dump when the guest is crashed. If management > app does not do auto dump, the guest's user can do dump by hand if > he sees the guest is paniced. > > I touch the hypervisor instead of using virtio-serial, because > 1. it is simple > 2. the virtio-serial is an optional device, and the guest may > not have such device. > > Changes from v2 to v3: > 1. correct spelling > > Changes from v1 to v2: > 1. split up host and guest-side changes > 2. introduce new request flag to avoid changing return values. I see no Documentation/ changes. -- error compiling committee.c: too many arguments to function