Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752744AbZIZO4u (ORCPT ); Sat, 26 Sep 2009 10:56:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752451AbZIZO4t (ORCPT ); Sat, 26 Sep 2009 10:56:49 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:47263 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751952AbZIZO4s (ORCPT ); Sat, 26 Sep 2009 10:56:48 -0400 Date: Sat, 26 Sep 2009 16:56:06 +0200 From: Ingo Molnar To: Dan Smith Cc: Andrew Morton , Oren Laadan , linux-api@vger.kernel.org, containers@lists.linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, torvalds@linux-foundation.org, xemul@openvz.org Subject: Re: [PATCH 00/80] Kernel based checkpoint/restart [v18] Message-ID: <20090926145606.GA30071@elte.hu> References: <1253749920-18673-1-git-send-email-orenl@librato.com> <20090924154139.2a7dd5ec.akpm@linux-foundation.org> <87ljk39lcl.fsf@caffeine.danplanet.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87ljk39lcl.fsf@caffeine.danplanet.com> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.5 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1263 Lines: 30 * Dan Smith wrote: > >> Q: What additional work needs to be done to it? A: Fill in the > >> gory details following the examples so far. Current WIP includes > >> inet sockets, event-poll, and early work on inotify, mount > >> namespace and mount-points, pseudo file systems > > AM> Will this new code muck up the kernel, or will it be clean? > > I have (and have previously posted) prototype code to do c/r of open > sockets, ignoring some things like updating timers and such. It looks > rather similar to the existing UNIX bits, and is even easier in some > ways. > > One particular use case is only migrating listening sockets and > allowing the connected ones to be reset upon restart. That enables a > bunch of things like apache, postfix, vncserver, and even sshd. I > will pull the listen-only bits out of my current patch, scrape off a > little bitrot, and post them in a few days. That looks useful. (Btw., the other four questions Andrew asked look relevant too.) Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/