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From: "Serge E. Hallyn" <serue@us.ibm.com>
To: Oren Laadan <orenl@cs.columbia.edu>
Cc: Daniel Lezcano <dlezcano@fr.ibm.com>,
	Louis.Rilling@kerlabs.com, containers@lists.linux-foundation.org,
	Dave Hansen <dave@linux.vnet.ibm.com>,
	linux-kernel@vger.kernel.org, Andrey Mirkin <major@openvz.org>
Subject: Re: [PATCH 0/9] OpenVZ kernel based checkpointing/restart
Date: Mon, 20 Oct 2008 11:51:17 -0500	[thread overview]
Message-ID: <20081020165117.GA25885@us.ibm.com> (raw)
In-Reply-To: <48FCA97C.1040108@cs.columbia.edu>

Quoting Oren Laadan (orenl@cs.columbia.edu):
> This is a misconception: my patches are not "internal checkpoint". My
> patches are basically "external checkpoint" by design, which *also*
> accommodates self-checkpointing (aka internal). The same holds for the
> restart. The implementation is demonstrated with "self-checkpoint" to
> avoid complicating things at this early stage of proof-of-concept.
> 
> For multiple processes all that is needed is a container and a loop
> on the checkpoint side, and a method to recreate processes on the
> restart side. Andrew suggests to do it in kernel space, I still have
> doubts.

Yes I still prefer in-kernel.  Can you elaborate on advantages of doing
more work in userspace?

> While I held out the multi-process part of the patch so far because I

Yup, and i appreciate your restraint until now :)  It made your patchset
much easier to review.

> was explicitly asked to do it, it seems like this would be a good time
> to push it out and get feedback.

Can you send that out as a patch(set) on top of your v7?  I'd love to
see (and test) it.

thanks,
-serge

  parent reply	other threads:[~2008-10-20 16:51 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-09-03 10:57 Andrey Mirkin
2008-09-03 10:57 ` [PATCH 1/9] Introduce trivial sys_checkpoint and sys_restore system calls Andrey Mirkin
2008-09-03 10:57   ` [PATCH 2/9] Make checkpoint/restart functionality modular Andrey Mirkin
2008-09-03 10:57     ` [PATCH 3/9] Introduce context structure needed during checkpointing/restart Andrey Mirkin
2008-09-03 10:57       ` [PATCH 4/9] Introduce container dump function Andrey Mirkin
2008-09-03 10:57         ` [PATCH 5/9] Introduce function to dump process Andrey Mirkin
2008-09-03 10:57           ` [PATCH 6/9] Introduce functions to dump mm Andrey Mirkin
2008-09-03 10:57             ` [PATCH 7/9] Introduce function for restarting a container Andrey Mirkin
2008-09-03 10:57               ` [PATCH 8/9] Introduce functions to restart a process Andrey Mirkin
2008-09-03 10:57                 ` [PATCH 9/9] Introduce functions to restore mm Andrey Mirkin
2008-09-03 14:32                 ` [PATCH 8/9] Introduce functions to restart a process Louis Rilling
2008-09-13 17:34                   ` Pavel Machek
2008-09-03 14:17             ` [PATCH 6/9] Introduce functions to dump mm Louis Rilling
2008-09-03 14:23         ` [PATCH 4/9] Introduce container dump function Serge E. Hallyn
2008-09-03 14:45           ` Andrey Mirkin
2008-09-03 12:29       ` [PATCH 3/9] Introduce context structure needed during checkpointing/restart Matthieu Fertré
2008-09-03 14:11         ` Andrey Mirkin
2008-09-03 13:56       ` Louis Rilling
2008-09-03 14:07         ` Andrey Mirkin
2008-09-03 14:13       ` Cedric Le Goater
2008-09-03 14:29         ` Andrey Mirkin
2008-09-03 14:27     ` [PATCH 2/9] Make checkpoint/restart functionality modular Serge E. Hallyn
2008-09-03 14:51       ` Andrey Mirkin
2008-09-03 11:44   ` [PATCH 1/9] Introduce trivial sys_checkpoint and sys_restore system calls Cedric Le Goater
2008-09-03 13:05     ` [Devel] " Andrey Mirkin
2008-09-03 12:28 ` [PATCH 0/9] OpenVZ kernel based checkpointing/restart Cedric Le Goater
2008-09-03 13:59   ` [Devel] " Andrey Mirkin
2008-09-04 22:55     ` Dave Hansen
2008-09-03 14:18   ` Serge E. Hallyn
2008-09-03 13:49 ` Louis Rilling
2008-09-03 14:06   ` Louis Rilling
2008-09-03 14:19     ` Andrey Mirkin
2008-09-03 14:26     ` Cedric Le Goater
2008-09-03 14:53       ` Andrey Mirkin
2008-09-04  8:14 ` Oren Laadan
2008-09-04 14:05 ` Dave Hansen
2008-10-17 23:33 ` Dave Hansen
2008-10-20 11:10   ` Louis Rilling
2008-10-20 13:25     ` Daniel Lezcano
2008-10-20 13:48       ` Cedric Le Goater
2008-10-20 13:49         ` Daniel Lezcano
2008-10-20 15:53       ` Oren Laadan
2008-10-20 16:37         ` Daniel Lezcano
2008-10-20 17:23           ` Serge E. Hallyn
2008-10-21  0:18             ` Oren Laadan
2008-10-21  0:58               ` Serge E. Hallyn
2008-10-21 13:24               ` Daniel Lezcano
2008-10-27 14:45           ` [Devel] " Andrey Mirkin
2008-10-20 16:51         ` Serge E. Hallyn [this message]
2008-10-21  9:36         ` Cedric Le Goater
2008-10-20 16:36     ` Dave Hansen
2008-10-20 12:14   ` [Devel] " Andrey Mirkin
2008-10-20 15:55     ` Dave Hansen
2008-10-27 14:07       ` Andrey Mirkin
2008-10-27 14:39         ` Oren Laadan
2008-10-30  6:02           ` Andrey Mirkin
2008-10-30 11:47             ` Louis Rilling
2008-10-30 17:08               ` Dave Hansen
2008-10-30 18:01                 ` Louis Rilling
2008-10-30 18:28                   ` Oren Laadan
2008-10-30 17:45               ` Oren Laadan
2008-10-30 18:14                 ` Louis Rilling
2008-10-30 18:32                   ` Oren Laadan
2008-10-31 10:37                     ` Louis Rilling
2008-10-30 14:08             ` Serge E. Hallyn
2008-10-30 17:03             ` Dave Hansen
2008-11-03 19:35         ` Oren Laadan
2008-10-20 17:17     ` Oren Laadan
2008-10-27 14:38       ` Andrey Mirkin

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