From: Jeremy Maitin-Shepard <jbms@cmu.edu>
To: david@lang.hm
Cc: Alan Stern <stern@rowland.harvard.edu>,
"Rafael J. Wysocki" <rjw@sisk.pl>,
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: Mon, 16 Jul 2007 01:18:15 -0400 [thread overview]
Message-ID: <87wsx1ylig.fsf@jbms.ath.cx> (raw)
In-Reply-To: <Pine.LNX.4.64.0707151650090.25614@asgard.lang.hm> (david@lang.hm's message of "Sun\, 15 Jul 2007 16\:53\:47 -0700 \(PDT\)")
david@lang.hm writes:
[snip]
>> Isn't is possible to avoid this problem by mounting an ext3 filesystem
>> as readonly ext2? Provided the filesystem isn't dirty it should be
>> doable. (And provided the filesystem doesn't use any ext3 extensions
>> that are incompatible with ext2.)
> from the last discussion I saw on the kernel mailing list, no. the act of
> mounting the ext3 filesystem as ext2 read-only will change it as the unsupported
> extentions get turned off (and I think the journal contents at least are lost as
> part of this)
The fact of the matter is that it really doesn't matter whether mounting
it read-only actually corrupts the data on disk or not. Regardless, it
should not be done, because you are accessing a dirty filesystem that is
still in use, and consequently there are no guarantees that either the
metadata or the file contents are consistent. It isn't necessary for
hibernation to be able to access mounted partitions anyway.
--
Jeremy Maitin-Shepard
next prev parent reply other threads:[~2007-07-16 5:18 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
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 [this message]
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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