From: Jeremy Maitin-Shepard <jbms@cmu.edu>
To: david@lang.hm
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>,
Alan Stern <stern@rowland.harvard.edu>,
LKML <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
"Eric W. Biederman" <ebiederm@xmission.com>, "Huang\,
Ying" <ying.huang@intel.com>, Kyle Moffett <mrmacman_g4@mac.com>,
Nigel Cunningham <nigel@nigel.suspend2.net>,
Pavel Machek <pavel@ucw.cz>,
pm list <linux-pm@lists.linux-foundation.org>,
Al Boldi <a1426z@gawab.com>
Subject: Re: Hibernation considerations
Date: Tue, 17 Jul 2007 16:54:08 -0400 [thread overview]
Message-ID: <87fy3mg39r.fsf@jbms.ath.cx> (raw)
In-Reply-To: <Pine.LNX.4.64.0707171328450.2467@asgard.lang.hm> (david@lang.hm's message of "Tue\, 17 Jul 2007 13\:34\:24 -0700 \(PDT\)")
david@lang.hm writes:
[snip]
> this is where we disagree.
> why not? if all that the hibernated kernel does is to suspend-to-ram and makes
> no changes to disks or TCP connections anything that it does do would be lost if
> power were to fail and you instead did a restore from disk.
It would be okay to switch the "hibernated" kernel in order to
e.g. initiate a suspend to ram provided that everything is done
atomically with interrupts off, for instance. It is not clear, though,
that it is possible to suspend to ram atomically like that.
There is also the question of what state the devices will be in when
switching back from the "save image" kernel to the "hibernated" kernel.
[snip]
--
Jeremy Maitin-Shepard
next prev parent reply other threads:[~2007-07-17 20:54 UTC|newest]
Thread overview: 220+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-15 12:33 Hibernation considerations Rafael J. Wysocki
2007-07-15 12:51 ` Nigel Cunningham
2007-07-15 12:58 ` Dr. David Alan Gilbert
2007-07-15 22:38 ` Rafael J. Wysocki
2007-07-15 22:27 ` david
2007-07-17 17:40 ` Dr. David Alan Gilbert
2007-07-17 17:49 ` david
2007-07-29 6:53 ` Vojtech Pavlik
2007-07-29 9:56 ` Rafael J. Wysocki
2007-08-05 19:56 ` encrypted hibernation (was Re: Hibernation considerations) Pavel Machek
2007-08-11 23:43 ` Dr. David Alan Gilbert
2007-08-12 22:12 ` Rafael J. Wysocki
2007-08-18 19:37 ` Dr. David Alan Gilbert
2007-08-21 7:29 ` Pavel Machek
2007-08-13 2:30 ` Michael Chang
2007-08-13 4:53 ` alon.barlev
2007-07-15 15:10 ` Hibernation considerations Al Boldi
2007-07-15 15:35 ` jimmy bahuleyan
2007-07-15 17:40 ` Al Boldi
2007-07-15 16:29 ` Alan Stern
2007-07-15 17:40 ` Al Boldi
2007-07-15 23:28 ` Alan Stern
2007-07-15 23:58 ` david
2007-07-16 5:02 ` Al Boldi
2007-07-16 6:49 ` david
2007-07-16 13:32 ` Al Boldi
2007-07-17 4:33 ` david
2007-07-17 12:08 ` Al Boldi
2007-07-17 14:18 ` Rafael J. Wysocki
2007-07-17 15:23 ` david
2007-07-16 14:53 ` Alan Stern
2007-07-16 16:51 ` Al Boldi
2007-07-17 4:37 ` david
2007-07-15 19:52 ` david
2007-07-15 20:13 ` david
2007-07-15 22:47 ` Rafael J. Wysocki
2007-07-15 22:42 ` david
2007-07-15 23:15 ` Alan Stern
2007-07-15 23:38 ` Nigel Cunningham
2007-07-16 14:15 ` Alan Stern
2007-07-16 15:25 ` Rafael J. Wysocki
2007-07-15 23:41 ` david
2007-07-16 14:21 ` Alan Stern
2007-07-17 4:45 ` david
2007-07-17 14:15 ` Alan Stern
2007-07-17 14:40 ` Rafael J. Wysocki
2007-07-17 15:29 ` david
2007-07-17 16:02 ` Rafael J. Wysocki
2007-07-17 17:06 ` david
2007-07-17 19:50 ` Rafael J. Wysocki
2007-07-17 20:18 ` david
2007-07-17 20:39 ` Jeremy Maitin-Shepard
2007-07-17 20:39 ` david
2007-07-17 20:58 ` Rafael J. Wysocki
2007-07-17 20:57 ` Rafael J. Wysocki
2007-07-17 20:53 ` david
2007-07-17 21:37 ` Rafael J. Wysocki
2007-07-17 21:42 ` david
2007-07-17 21:53 ` Jeremy Maitin-Shepard
2007-07-21 10:25 ` Pavel Machek
2007-07-21 15:35 ` Jeremy Maitin-Shepard
2007-07-21 17:56 ` Pavel Machek
2007-07-21 19:35 ` david
2007-07-21 19:49 ` Pavel Machek
2007-07-21 22:14 ` david
2007-08-01 16:58 ` Stefan Seyfried
2007-07-17 20:24 ` Jeremy Maitin-Shepard
2007-07-17 20:44 ` david
2007-07-17 21:00 ` Rafael J. Wysocki
2007-07-17 16:09 ` Jeremy Maitin-Shepard
2007-07-17 19:54 ` Rafael J. Wysocki
2007-07-17 18:32 ` Alan Stern
2007-07-17 20:17 ` Rafael J. Wysocki
2007-07-17 20:34 ` david
2007-07-17 20:54 ` Jeremy Maitin-Shepard [this message]
2007-07-17 21:04 ` david
2007-07-17 21:23 ` Rafael J. Wysocki
2007-07-17 21:17 ` david
2007-07-17 21:27 ` Jeremy Maitin-Shepard
2007-07-17 21:27 ` david
2007-07-17 21:54 ` Rafael J. Wysocki
2007-07-17 21:45 ` Rafael J. Wysocki
2007-07-17 21:43 ` Rafael J. Wysocki
2007-07-17 20:34 ` Jeremy Maitin-Shepard
2007-07-17 20:37 ` david
2007-07-17 20:56 ` Jeremy Maitin-Shepard
2007-07-17 21:06 ` david
2007-07-17 21:40 ` Rafael J. Wysocki
2007-07-17 21:24 ` Rafael J. Wysocki
2007-07-17 21:11 ` Rafael J. Wysocki
2007-07-17 20:27 ` david
2007-07-17 21:20 ` Rafael J. Wysocki
[not found] ` <ea7a437ca4038d408ac544bbc3c2434a@bga.com>
2007-07-19 17:31 ` [linux-pm] " david
2007-07-20 14:24 ` Milton Miller
2007-07-20 15:44 ` david
2007-07-19 20:28 ` Rafael J. Wysocki
2007-07-19 23:07 ` david
2007-07-20 11:17 ` Rafael J. Wysocki
2007-07-20 15:35 ` david
2007-07-20 16:15 ` Alan Stern
2007-07-20 21:46 ` Rafael J. Wysocki
2007-07-20 16:56 ` Milton Miller
2007-07-20 17:31 ` Jeremy Maitin-Shepard
2007-07-20 21:30 ` Rafael J. Wysocki
2007-07-20 19:26 ` david
2007-07-20 21:28 ` Rafael J. Wysocki
2007-07-20 21:33 ` Jeremy Maitin-Shepard
2007-07-20 22:19 ` Rafael J. Wysocki
[not found] ` <20070720152744.GH20529@grifter.jdc.home>
2007-07-20 15:36 ` david
2007-07-20 21:43 ` Rafael J. Wysocki
2007-07-20 21:39 ` david
2007-07-20 22:22 ` Rafael J. Wysocki
2007-07-20 22:39 ` david
2007-07-20 16:08 ` Milton Miller
2007-07-20 16:20 ` Alan Stern
2007-07-20 17:32 ` Milton Miller
2007-07-20 18:17 ` Alan Stern
2007-07-20 19:08 ` Milton Miller
2007-07-20 19:37 ` Alan Stern
2007-07-20 20:03 ` Oliver Neukum
2007-07-20 20:12 ` Alan Stern
2007-07-20 21:35 ` Oliver Neukum
2007-07-20 22:25 ` Alan Stern
2007-07-23 14:23 ` Oliver Neukum
2007-07-23 20:05 ` Towards eliminating the freezer Alan Stern
2007-07-24 8:21 ` Oliver Neukum
2007-07-24 14:27 ` Alan Stern
2007-07-24 9:33 ` Rafael J. Wysocki
2007-07-24 14:29 ` Alan Stern
2007-07-24 15:24 ` Rafael J. Wysocki
2007-07-24 16:06 ` Alan Stern
2007-07-24 19:20 ` Rafael J. Wysocki
2007-07-24 20:24 ` Alan Stern
2007-07-24 21:14 ` Rafael J. Wysocki
2007-07-24 22:14 ` Alan Stern
2007-07-25 12:23 ` Rafael J. Wysocki
2007-08-01 9:34 ` [linux-pm] Re: Hibernation considerations Pavel Machek
2007-08-03 3:50 ` david
2007-07-20 20:31 ` david
2007-07-20 21:24 ` Alan Stern
2007-07-20 21:34 ` david
2007-07-20 22:15 ` Rafael J. Wysocki
2007-07-20 21:37 ` Jeremy Maitin-Shepard
2007-07-20 22:35 ` Alan Stern
2007-07-20 22:43 ` david
2007-07-21 5:21 ` Nigel Cunningham
2007-07-21 14:10 ` Alan Stern
2007-07-22 3:43 ` david
2007-07-22 16:00 ` Alan Stern
2007-07-22 21:50 ` david
2007-07-23 15:19 ` Alan Stern
2007-07-23 19:01 ` david
2007-07-23 20:22 ` Alan Stern
2007-07-24 13:26 ` Huang, Ying
2007-07-24 14:50 ` Alan Stern
2007-07-20 22:48 ` Jeremy Maitin-Shepard
2007-07-20 21:02 ` Rafael J. Wysocki
2007-07-21 11:44 ` Miklos Szeredi
2007-07-21 12:43 ` Nigel Cunningham
2007-07-21 13:56 ` Alan Stern
2007-07-21 16:13 ` Jeremy Maitin-Shepard
2007-07-21 18:12 ` Miklos Szeredi
2007-07-21 19:20 ` Rafael J. Wysocki
2007-08-01 9:22 ` Pavel Machek
2007-08-02 17:02 ` Rafael J. Wysocki
2007-07-21 22:21 ` Nigel Cunningham
2007-07-21 22:16 ` Nigel Cunningham
2007-07-22 15:26 ` Alan Stern
2007-07-22 16:27 ` Miklos Szeredi
2007-07-22 20:09 ` Alan Stern
2007-07-22 21:54 ` david
2007-07-22 22:42 ` Nigel Cunningham
2007-07-22 23:09 ` Rafael J. Wysocki
2007-07-22 23:18 ` Nigel Cunningham
2007-07-23 0:04 ` Paul Mackerras
2007-07-23 3:11 ` Nigel Cunningham
2007-07-23 15:23 ` Alan Stern
2007-07-23 21:55 ` Nigel Cunningham
2007-07-23 22:10 ` Rafael J. Wysocki
2007-07-23 5:31 ` david
2007-07-23 10:24 ` Miklos Szeredi
2007-07-23 12:08 ` Rafael J. Wysocki
2007-07-23 12:14 ` Miklos Szeredi
2007-07-23 12:27 ` Rafael J. Wysocki
2007-07-23 12:31 ` Oliver Neukum
2007-07-23 13:08 ` Miklos Szeredi
2007-07-23 14:01 ` Rafael J. Wysocki
2007-07-23 14:01 ` Miklos Szeredi
2007-07-23 19:08 ` david
2007-08-01 9:19 ` Pavel Machek
[not found] ` <40fa2626aff7b6b590ad6aa4737fc873@bga.com>
2007-07-20 14:48 ` Huang, Ying
2007-07-20 15:48 ` david
2007-07-22 2:17 ` Huang, Ying
2007-07-22 2:32 ` david
2007-07-20 21:34 ` Rafael J. Wysocki
2007-07-17 22:38 ` Alan Stern
2007-07-17 22:37 ` david
2007-07-18 14:29 ` Alan Stern
2007-07-18 14:47 ` Rafael J. Wysocki
2007-07-20 4:40 ` Al Boldi
2007-07-20 10:59 ` Rafael J. Wysocki
2007-07-21 10:17 ` Pavel Machek
2007-07-15 23:22 ` Rafael J. Wysocki
2007-07-15 23:49 ` david
2007-07-16 12:06 ` Rafael J. Wysocki
[not found] ` <20070716123849.GC14212@grifter.jdc.home>
2007-07-16 15:29 ` Rafael J. Wysocki
2007-07-17 4:28 ` david
2007-07-17 10:42 ` Matthew Garrett
2007-07-17 15:19 ` david
2007-07-18 2:18 ` Matthew Garrett
2007-07-18 3:54 ` david
2007-07-18 11:10 ` Matthew Garrett
2007-07-18 12:56 ` david
2007-07-15 23:17 ` Alan Stern
2007-07-15 23:53 ` david
2007-07-16 5:18 ` Jeremy Maitin-Shepard
2007-07-15 20:35 ` Cornelius Riemenschneider
2007-07-15 19:46 ` david
2007-07-16 0:51 ` Matthew Garrett
2007-07-16 0:51 ` david
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