From: Oren Laadan <orenl-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
To: Dave Hansen <dave-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
Cc: Kirill Korotaev <dev-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>,
containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Alexey Dobriyan
<adobriyan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
"Eric W. Biederman"
<ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>,
Andrew Morton
<akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
nick-dnCCA748QAperShJXdIFYw@public.gmane.org,
Nadia.Derbey-6ktuUTfB/bM@public.gmane.org
Subject: Re: Checkpoint/restart (was Re: [PATCH 0/4] - v2 - Object creation with a specified id)
Date: Thu, 17 Jul 2008 19:14:25 -0400 [thread overview]
Message-ID: <487FD251.9090204@cs.columbia.edu> (raw)
In-Reply-To: <1215709949.9398.15.camel@nimitz>
Dave Hansen wrote:
> 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
"Replaying all of the user space actions that took us to get there" -
this task is not even always possible without deterministic log/replay
mechanism :(
Oren.
> 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:[~2008-07-17 23:14 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20080418054459.891481000@bull.net>
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 ` [PATCH 2/4] - v2 - Provide a new procfs interface to set next upid nr(s) Nadia.Derbey-6ktuUTfB/bM
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 ` [PATCH 4/4] - v2 - PID: " Nadia.Derbey-6ktuUTfB/bM
[not found] ` <20080422193612.GA15835@martell.zuzino.mipt.ru>
[not found] ` <20080422193612.GA15835-QDJVlCTZ4KWTKS93B3g+7KFoa47nwP16@public.gmane.org>
2008-04-22 18:56 ` Checkpoint/restart (was Re: [PATCH 0/4] - v2 - Object creation with a specified id) Dave Hansen
[not found] ` <1208890580.17117.14.camel-FpcvD5N4B9G9xGwK5P7XA+TW4wlIGRCZ@public.gmane.org>
2008-04-22 19:51 ` Serge E. Hallyn
2008-04-22 21:01 ` Alexey Dobriyan
[not found] ` <20080422210130.GA15937@martell.zuzino.mipt.ru>
[not found] ` <20080422210130.GA15937-QDJVlCTZ4KWTKS93B3g+7KFoa47nwP16@public.gmane.org>
2008-04-22 22:56 ` Dave Hansen
[not found] ` <1208904967.17117.51.camel@nimitz.home.sr71.net>
[not found] ` <1208904967.17117.51.camel-FpcvD5N4B9G9xGwK5P7XA+TW4wlIGRCZ@public.gmane.org>
2008-04-23 6:40 ` Kirill Korotaev
[not found] ` <480ED9D5.1010906@parallels.com>
[not found] ` <480ED9D5.1010906-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2008-04-23 15:33 ` Dave Hansen
2008-04-24 1:19 ` Oren Laadan
[not found] ` <480FE037.2010302-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2008-07-10 1:58 ` Eric W. Biederman
[not found] ` <m1y74a7b4w.fsf@frodo.ebiederm.org>
[not found] ` <1215709949.9398.15.camel@nimitz>
2008-07-10 17:32 ` Serge E. Hallyn
[not found] ` <20080710173246.GA1857@us.ibm.com>
[not found] ` <20080710173246.GA1857-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
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 19:21 ` Eric W. Biederman
[not found] ` <m14p6xy27s.fsf@frodo.ebiederm.org>
[not found] ` <m14p6xy27s.fsf-B27657KtZYmhTnVgQlOflh2eb7JE58TQ@public.gmane.org>
2008-07-10 19:47 ` Dave Hansen
[not found] ` <1215719252.9398.53.camel@nimitz>
2008-07-11 0:32 ` Alexey Dobriyan
2008-07-17 23:19 ` Oren Laadan
2008-07-17 23:16 ` Oren Laadan
2008-07-17 23:14 ` Oren Laadan [this message]
[not found] ` <m1y74a7b4w.fsf-B27657KtZYmhTnVgQlOflh2eb7JE58TQ@public.gmane.org>
2008-07-10 17:12 ` Dave Hansen
2008-07-17 23:09 ` Oren Laadan
[not found] ` <1208964798.17117.72.camel@nimitz.home.sr71.net>
[not found] ` <1208964798.17117.72.camel-FpcvD5N4B9G9xGwK5P7XA+TW4wlIGRCZ@public.gmane.org>
2008-04-24 7:00 ` Kirill Korotaev
[not found] ` <48103002.5090806@parallels.com>
[not found] ` <48103002.5090806-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2008-04-24 18:30 ` Dave Hansen
[not found] ` <1209061809.12718.36.camel@nimitz.home.sr71.net>
[not found] ` <1209061809.12718.36.camel-FpcvD5N4B9G9xGwK5P7XA+TW4wlIGRCZ@public.gmane.org>
2008-04-24 23:13 ` Oren Laadan
[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
[not found] ` <1208538427.25363.40.camel-FpcvD5N4B9G9xGwK5P7XA+TW4wlIGRCZ@public.gmane.org>
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
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