From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Serge E. Hallyn" Subject: Re: [RFC v17][PATCH 00/60] Kernel based checkpoint/restart Date: Fri, 24 Jul 2009 14:09:53 -0500 Message-ID: <20090724190953.GA22641@us.ibm.com> References: <1248256822-23416-1-git-send-email-orenl@librato.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1248256822-23416-1-git-send-email-orenl-RdfvBDnrOixBDgjK7y7TUQ@public.gmane.org> Sender: linux-api-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Oren Laadan Cc: Andrew Morton , Linus Torvalds , containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org, linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Dave Hansen , Ingo Molnar , "H. Peter Anvin" , Alexander Viro , Pavel Emelyanov , Alexey Dobriyan List-Id: linux-api@vger.kernel.org Quoting Oren Laadan (orenl-RdfvBDnrOixBDgjK7y7TUQ@public.gmane.org): > Application checkpoint/restart (c/r) is the ability to save the state > of a running application so that it can later resume its execution > from the time at which it was checkpointed, on the same or a different > machine. > > This version introduces 'clone_with_pids()' syscall to preset pid(s) > for a child process. It is used by restart(2) to recreate process > hierarchy with the same pids as at checkpoint time. > > It also adds a freezer state CHECKPOINTING to safeguard processes > during a checkpoint. Other important changes include support for > threads and zombies, credentials, signal handling, and improved > restart logic. See below for a more detailed changelog. > > Compiled and tested against v2.6.31-rc3. With the s390 patch I recently sent on top of this set, all of my c/r tests pass, and ltp behaves the same as on plain v2.6.31-rc3 (up to and including hanging on mallocstress). -serge -- 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