From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Lezcano Subject: Re: [PATCH 00/80] Kernel based checkpoint/restart [v18] Date: Tue, 29 Sep 2009 15:29:28 +0200 Message-ID: <4AC20BB8.4070509@free.fr> References: <1253749920-18673-1-git-send-email-orenl@librato.com> <20090924154139.2a7dd5ec.akpm@linux-foundation.org> <20090928163704.GA3327@us.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20090928163704.GA3327-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org> Sender: linux-api-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: "Serge E. Hallyn" Cc: Andrew Morton , linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org, mingo-X9Un+BFzKDI@public.gmane.org, torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org, xemul-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org List-Id: linux-api@vger.kernel.org Serge E. Hallyn wrote: > Quoting Andrew Morton (akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org): > >> On Wed, 23 Sep 2009 19:50:40 -0400 >> Oren Laadan wrote: >> >>> Q: What about namespaces ? >>> A: Currrently, UTS and IPC namespaces are restored. They demonstrate >>> how namespaces are handled. More to come. >>> >> Will this new code muck up the kernel? >> [ cut ] > For network namespaces i think it's clearer that a wrapper > program should set up the network for the restarted init task, > while the usrspace code should recreate any private network > namespaces and veth's which were created by the application. > But it still needs discussion. > Ok for the restart, but for the checkpoint, how do you access the network setup from a process which belongs to another namespace context ? -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752360AbZI2N33 (ORCPT ); Tue, 29 Sep 2009 09:29:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752162AbZI2N33 (ORCPT ); Tue, 29 Sep 2009 09:29:29 -0400 Received: from mtagate4.de.ibm.com ([195.212.17.164]:48736 "EHLO mtagate4.de.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751643AbZI2N32 (ORCPT ); Tue, 29 Sep 2009 09:29:28 -0400 Message-ID: <4AC20BB8.4070509@free.fr> Date: Tue, 29 Sep 2009 15:29:28 +0200 From: Daniel Lezcano User-Agent: Thunderbird 2.0.0.21 (X11/20090320) MIME-Version: 1.0 To: "Serge E. Hallyn" CC: Andrew Morton , linux-api@vger.kernel.org, containers@lists.linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mingo@elte.hu, torvalds@linux-foundation.org, xemul@openvz.org Subject: Re: [PATCH 00/80] Kernel based checkpoint/restart [v18] References: <1253749920-18673-1-git-send-email-orenl@librato.com> <20090924154139.2a7dd5ec.akpm@linux-foundation.org> <20090928163704.GA3327@us.ibm.com> In-Reply-To: <20090928163704.GA3327@us.ibm.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Serge E. Hallyn wrote: > Quoting Andrew Morton (akpm@linux-foundation.org): > >> On Wed, 23 Sep 2009 19:50:40 -0400 >> Oren Laadan wrote: >> >>> Q: What about namespaces ? >>> A: Currrently, UTS and IPC namespaces are restored. They demonstrate >>> how namespaces are handled. More to come. >>> >> Will this new code muck up the kernel? >> [ cut ] > For network namespaces i think it's clearer that a wrapper > program should set up the network for the restarted init task, > while the usrspace code should recreate any private network > namespaces and veth's which were created by the application. > But it still needs discussion. > Ok for the restart, but for the checkpoint, how do you access the network setup from a process which belongs to another namespace context ? From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail203.messagelabs.com (mail203.messagelabs.com [216.82.254.243]) by kanga.kvack.org (Postfix) with ESMTP id A03C16B005A for ; Tue, 29 Sep 2009 09:04:14 -0400 (EDT) Received: from d12nrmr1607.megacenter.de.ibm.com (d12nrmr1607.megacenter.de.ibm.com [9.149.167.49]) by mtagate2.de.ibm.com (8.13.1/8.13.1) with ESMTP id n8TDTUBK013018 for ; Tue, 29 Sep 2009 13:29:30 GMT Received: from d12av04.megacenter.de.ibm.com (d12av04.megacenter.de.ibm.com [9.149.165.229]) by d12nrmr1607.megacenter.de.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id n8TDTToa3276900 for ; Tue, 29 Sep 2009 15:29:29 +0200 Received: from d12av04.megacenter.de.ibm.com (loopback [127.0.0.1]) by d12av04.megacenter.de.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id n8TDTSiX031863 for ; Tue, 29 Sep 2009 15:29:28 +0200 Message-ID: <4AC20BB8.4070509@free.fr> Date: Tue, 29 Sep 2009 15:29:28 +0200 From: Daniel Lezcano MIME-Version: 1.0 Subject: Re: [PATCH 00/80] Kernel based checkpoint/restart [v18] References: <1253749920-18673-1-git-send-email-orenl@librato.com> <20090924154139.2a7dd5ec.akpm@linux-foundation.org> <20090928163704.GA3327@us.ibm.com> In-Reply-To: <20090928163704.GA3327@us.ibm.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: "Serge E. Hallyn" Cc: Andrew Morton , linux-api@vger.kernel.org, containers@lists.linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mingo@elte.hu, torvalds@linux-foundation.org, xemul@openvz.org List-ID: Serge E. Hallyn wrote: > Quoting Andrew Morton (akpm@linux-foundation.org): > >> On Wed, 23 Sep 2009 19:50:40 -0400 >> Oren Laadan wrote: >> >>> Q: What about namespaces ? >>> A: Currrently, UTS and IPC namespaces are restored. They demonstrate >>> how namespaces are handled. More to come. >>> >> Will this new code muck up the kernel? >> [ cut ] > For network namespaces i think it's clearer that a wrapper > program should set up the network for the restarted init task, > while the usrspace code should recreate any private network > namespaces and veth's which were created by the application. > But it still needs discussion. > Ok for the restart, but for the checkpoint, how do you access the network setup from a process which belongs to another namespace context ? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org