From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: [PATCH 0/4] Export offsets of VMCS fields as note information for kdump Date: Sun, 22 Apr 2012 13:57:21 +0300 Message-ID: <4F93E411.7070809@redhat.com> References: <4F8FF7AC.1060309@redhat.com> <20120419.210119.246504497.d.hatayama@jp.fujitsu.com> <4F900020.5010702@redhat.com> <20120420.191133.488341439.d.hatayama@jp.fujitsu.com> <4F93D64B.50803@redhat.com> <20120422103340.GE12768@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: dzickus-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, luto-3s7WtUTddSA@public.gmane.org, mtosatti-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, kvm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, joerg.roedel-5C7GfCeVMHo@public.gmane.org, gregkh-l3A5Bk7waGM@public.gmane.org, kexec-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, paul.gortmaker-CWA4WttNNZF54TAoqtyWWQ@public.gmane.org, HATAYAMA Daisuke , zhangyanfei-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org, ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org, ludwig.nussel-l3A5Bk7waGM@public.gmane.org To: Gleb Natapov Return-path: In-Reply-To: <20120422103340.GE12768-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kexec-bounces-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org Errors-To: kexec-bounces+glkk-kexec=m.gmane.org-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: kvm.vger.kernel.org On 04/22/2012 01:33 PM, Gleb Natapov wrote: > > > > What I don't understand is why you are interested in the guest machine > > at all, if it was qemu that crashed. > > > It would be interesting to extract enough information from the core to be > able to restart the guest from the point where qemu crashed, but > decoding VMCS is not enough for that. Interesting idea. It should be possible if you attach all kvm state to the core (and do quite a lot of digging to recover device model state). -- error compiling committee.c: too many arguments to function