From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755945Ab2GaIxZ (ORCPT ); Tue, 31 Jul 2012 04:53:25 -0400 Received: from mailhub.sw.ru ([195.214.232.25]:16221 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755849Ab2GaIxX (ORCPT ); Tue, 31 Jul 2012 04:53:23 -0400 Message-ID: <50179CF0.7050200@parallels.com> Date: Tue, 31 Jul 2012 12:53:04 +0400 From: Pavel Emelyanov User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.1) Gecko/20120209 Thunderbird/10.0.1 MIME-Version: 1.0 To: richard -rw- weinberger CC: Linux Kernel Mailing List , "lwn@lwn.net" , "criu@openvz.org" , "users@openvz.org" , Containers , cgroups mailinglist Subject: Re: [Announce] Checkpoint-restore tool v0.1 References: <500D09C9.7060903@parallels.com> <500D1116.7070301@parallels.com> In-Reply-To: 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 07/30/2012 02:42 PM, richard -rw- weinberger wrote: > On Mon, Jul 23, 2012 at 10:53 AM, Pavel Emelyanov wrote: >> This project is an attempt to implement the checkpoint-restore functionality >> for processes and containers without driving too much code into the kernel tree, >> but putting there "various oddball helper code" instead. > > Is CRIU able to checkpoint a process tree where one or more processes > are traced using ptrace()? No it's not (currently). > crtools seem to use ptrace() to execute parasite system calls. > AFAIK this will only work if the target process is currently not > ptraced() by another process. > Yup, exactly. Thanks, Pavel