From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751625AbYICKzn (ORCPT ); Wed, 3 Sep 2008 06:55:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751822AbYICKzL (ORCPT ); Wed, 3 Sep 2008 06:55:11 -0400 Received: from mailhub.sw.ru ([195.214.232.25]:38240 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750890AbYICKzJ (ORCPT ); Wed, 3 Sep 2008 06:55:09 -0400 From: Andrey Mirkin To: linux-kernel@vger.kernel.org Cc: containers@lists.linux-foundation.org, Andrey Mirkin Subject: [PATCH 0/9] OpenVZ kernel based checkpointing/restart Date: Wed, 3 Sep 2008 14:57:47 +0400 Message-Id: <1220439476-16465-1-git-send-email-major@openvz.org> X-Mailer: git-send-email 1.5.6 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patchset introduces kernel based checkpointing/restart as it is implemented in OpenVZ project. This patchset has limited functionality and are able to checkpoint/restart only single process. Recently Oren Laaden sent another kernel based implementation of checkpoint/restart. The main differences between this patchset and Oren's patchset are: * In this patchset checkpointing initiated not from the process (right now we do not have a container, only namespaces), Oren's patchset performs checkpointing from the process context. * Restart in this patchset is initiated from process, which restarts a new process (in new namespaces) with saved state. Oren's patchset uses the same process from which restart was initiated and restore saved state over it. * Checkpoint/restart functionality in this patchset is implemented as a kernel module As checkpointing is initiated not from the process which state should be saved we should freeze a process before saving its state. Right now Container Freezer from Matt Helsley can be used for this. This patchset introduce only a concept how kernel based checkpointing/restart can be implemented and are able to checkpoint/restart only a single process with simple VMAs. I've tried to split my patchset in small patches to make review more easier.