From: Dave Hansen <dave@linux.vnet.ibm.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Oren Laadan <orenl@cs.columbia.edu>,
Kirill Korotaev <dev@parallels.com>,
containers@lists.linux-foundation.org,
linux-kernel@vger.kernel.org, Nadia.Derbey@bull.net,
Andrew Morton <akpm@linux-foundation.org>,
nick@nick-andrew.net, Alexey Dobriyan <adobriyan@gmail.com>,
"Serge E. Hallyn" <serue@us.ibm.com>
Subject: Re: Checkpoint/restart (was Re: [PATCH 0/4] - v2 - Object creation with a specified id)
Date: Thu, 10 Jul 2008 10:12:29 -0700 [thread overview]
Message-ID: <1215709949.9398.15.camel@nimitz> (raw)
In-Reply-To: <m1y74a7b4w.fsf@frodo.ebiederm.org>
On Wed, 2008-07-09 at 18:58 -0700, Eric W. Biederman wrote:
> In the worst case today we can restore a checkpoint by replaying all of
> the user space actions that took us to get there. That is a tedious
> and slow approach.
Yes, tedious and slow, *and* minimally invasive in the kernel. Once we
have a tedious and slow process, we'll have some really good points when
we try to push the next set of patches to make it less slow and tedious.
We'll be able to describe an _actual_ set of problems to our fellow
kernel hackers.
So, the checkpoint-as-a-corefile idea sounds good to me, but it
definitely leaves a lot of questions about exactly how we'll need to do
the restore.
-- Dave
next prev parent reply other threads:[~2008-07-10 17:12 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-18 5:44 [PATCH 0/4] - v2 - Object creation with a specified id Nadia.Derbey
2008-04-18 5:45 ` [PATCH 1/4] - v2 - Provide a new procfs interface to set next id Nadia.Derbey-6ktuUTfB/bM
2008-04-18 5:45 ` Nadia.Derbey
2008-04-18 5:45 ` [PATCH 2/4] - v2 - Provide a new procfs interface to set next upid nr(s) Nadia.Derbey-6ktuUTfB/bM
2008-04-18 5:45 ` Nadia.Derbey
2008-04-18 5:45 ` [PATCH 3/4] - v2 - IPC: use the target ID specified in procfs Nadia.Derbey-6ktuUTfB/bM
2008-04-18 5:45 ` Nadia.Derbey
2008-04-18 5:45 ` [PATCH 4/4] - v2 - PID: " Nadia.Derbey-6ktuUTfB/bM
2008-04-18 5:45 ` Nadia.Derbey
2008-04-22 19:36 ` Checkpoint/restart (was Re: [PATCH 0/4] - v2 - Object creation with a specified id) Alexey Dobriyan
[not found] ` <20080422193612.GA15835-QDJVlCTZ4KWTKS93B3g+7KFoa47nwP16@public.gmane.org>
2008-04-22 18:56 ` Dave Hansen
2008-04-22 18:56 ` Dave Hansen
[not found] ` <1208890580.17117.14.camel-FpcvD5N4B9G9xGwK5P7XA+TW4wlIGRCZ@public.gmane.org>
2008-04-22 19:51 ` Serge E. Hallyn
2008-04-22 19:51 ` Serge E. Hallyn
2008-04-22 21:01 ` Alexey Dobriyan
2008-04-22 21:01 ` Alexey Dobriyan
2008-04-22 22:56 ` Dave Hansen
[not found] ` <1208904967.17117.51.camel-FpcvD5N4B9G9xGwK5P7XA+TW4wlIGRCZ@public.gmane.org>
2008-04-23 6:40 ` Kirill Korotaev
2008-04-23 6:40 ` Kirill Korotaev
2008-04-23 15:33 ` Dave Hansen
[not found] ` <1208964798.17117.72.camel-FpcvD5N4B9G9xGwK5P7XA+TW4wlIGRCZ@public.gmane.org>
2008-04-24 7:00 ` Kirill Korotaev
2008-04-24 7:00 ` Kirill Korotaev
2008-04-24 18:30 ` Dave Hansen
[not found] ` <1209061809.12718.36.camel-FpcvD5N4B9G9xGwK5P7XA+TW4wlIGRCZ@public.gmane.org>
2008-04-24 23:13 ` Oren Laadan
2008-04-24 23:13 ` Oren Laadan
[not found] ` <48103002.5090806-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2008-04-24 18:30 ` Dave Hansen
[not found] ` <480ED9D5.1010906-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2008-04-23 15:33 ` Dave Hansen
2008-04-24 1:19 ` Oren Laadan
2008-04-24 1:19 ` Oren Laadan
2008-07-10 1:58 ` Eric W. Biederman
2008-07-10 17:12 ` Dave Hansen [this message]
2008-07-10 17:32 ` Serge E. Hallyn
[not found] ` <20080710173246.GA1857-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-07-10 18:55 ` Eric W. Biederman
2008-07-10 18:55 ` Eric W. Biederman
[not found] ` <m163rd1sd5.fsf-B27657KtZYmhTnVgQlOflh2eb7JE58TQ@public.gmane.org>
2008-07-10 19:06 ` Dave Hansen
2008-07-10 19:06 ` Dave Hansen
2008-07-10 19:21 ` Eric W. Biederman
2008-07-10 19:21 ` Eric W. Biederman
2008-07-10 19:47 ` Dave Hansen
2008-07-11 0:32 ` Alexey Dobriyan
2008-07-11 0:32 ` Alexey Dobriyan
2008-07-17 23:19 ` Oren Laadan
2008-07-17 23:19 ` Oren Laadan
[not found] ` <m14p6xy27s.fsf-B27657KtZYmhTnVgQlOflh2eb7JE58TQ@public.gmane.org>
2008-07-10 19:47 ` Dave Hansen
2008-07-17 23:16 ` Oren Laadan
2008-07-17 23:16 ` Oren Laadan
2008-07-18 16:18 ` Serge E. Hallyn
2008-07-10 17:32 ` Serge E. Hallyn
2008-07-17 23:14 ` Oren Laadan
2008-07-17 23:14 ` Oren Laadan
[not found] ` <m1y74a7b4w.fsf-B27657KtZYmhTnVgQlOflh2eb7JE58TQ@public.gmane.org>
2008-07-10 17:12 ` Dave Hansen
2008-07-17 23:09 ` Oren Laadan
2008-07-17 23:09 ` Oren Laadan
[not found] ` <480FE037.2010302-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2008-07-10 1:58 ` Eric W. Biederman
[not found] ` <20080422210130.GA15937-QDJVlCTZ4KWTKS93B3g+7KFoa47nwP16@public.gmane.org>
2008-04-22 22:56 ` Dave Hansen
[not found] ` <20080418054459.891481000-6ktuUTfB/bM@public.gmane.org>
2008-04-18 17:07 ` [PATCH 0/4] - v2 - Object creation with a specified id Dave Hansen
2008-04-18 17:07 ` Dave Hansen
[not found] ` <1208538427.25363.40.camel-FpcvD5N4B9G9xGwK5P7XA+TW4wlIGRCZ@public.gmane.org>
2008-04-21 11:32 ` Nadia Derbey
2008-04-21 11:32 ` Nadia Derbey
2008-04-22 19:36 ` Checkpoint/restart (was Re: [PATCH 0/4] - v2 - Object creation with a specified id) Alexey Dobriyan
2008-04-23 14:23 ` [PATCH 0/4] - v2 - Object creation with a specified id Pavel Machek
2008-04-23 14:23 ` Pavel Machek
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