From: Pavel Machek <pavel@ucw.cz>
To: Nigel Cunningham <nigel@nigel.suspend2.net>
Cc: Miklos Szeredi <miklos@szeredi.hu>,
rjw@sisk.pl, miltonm@bga.com, stern@rowland.harvard.edu,
ying.huang@intel.com, linux-kernel@vger.kernel.org,
david@lang.hm, linux-pm@lists.linux-foundation.org, jbms@cmu.edu
Subject: Re: [linux-pm] Re: Hibernation considerations
Date: Wed, 1 Aug 2007 09:19:50 +0000 [thread overview]
Message-ID: <20070801091949.GA4808@ucw.cz> (raw)
In-Reply-To: <200707212243.35602.nigel@nigel.suspend2.net>
Hi!
> > > The problem with FUSE is related to the fact that the freezer can't
> > > freeze uninterruptible tasks and we said that perhaps we might avoid
> > > it if FUSE was made freezing-aware. Still, no one has gone in this
> > > direction and I don't know of any plans to do that.
> >
> > I thought we have fully explored this direction. Lots of emails, and
> > an IRC session with Pavel. Conclusion:
>
> What am I missing in the following suggested solution?
>
> 1) In the freezer code, we implement a new TIF_LATEFREEZE process flag, which,
> when set, causes a userspace process to be frozen with kernel threads
> instead of with userspace ones. When freezing, we freezing !TIF_LATEFREEZE,
> sync and then freeze TIF_LATEFREEZE and freezable kernel threads.
>
> 2) In the fuse code, the PID of the process that will do the work gets passed
The list of neccessary PIDs is not known to the kernel. FUSE servers
may depend on another parts of userland.
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2007-08-02 15:48 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 [this message]
[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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