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From: Nigel Cunningham <nigel@nigel.suspend2.net>
To: Jeremy Maitin-Shepard <jbms@cmu.edu>
Cc: david@lang.hm, Miklos Szeredi <miklos@szeredi.hu>,
	linux-kernel@vger.kernel.org, miltonm@bga.com,
	ying.huang@intel.com, linux-pm@lists.linux-foundation.org
Subject: Re: Re: Hibernation considerations
Date: Sun, 22 Jul 2007 08:16:02 +1000	[thread overview]
Message-ID: <200707220816.03838.nigel@nigel.suspend2.net> (raw)
In-Reply-To: <87lkd9ohtn.fsf@jbms.ath.cx>


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Hi.

On Sunday 22 July 2007 02:13:56 Jeremy Maitin-Shepard wrote:
> It seems that you could still potentially get a failure to freeze if one
> FUSE process depends on another, and the one that is frozen second just
> happens to be waiting on the one that is frozen first when it is frozen.
> I admit that this situation is unlikely, and perhaps acceptable.
> 
> A larger concern is that it seems that freezing FUSE processes at all
> _will_ generate deadlocks if a non-synchronous or memory-map-supporting
> filesystem is loopback mounted from a FUSE filesystem.  In that case, if
> you attempt to sync or free memory once FUSE is frozen, you are sure to
> get a deadlock.

Ok. So then (in response to Alan too), how about keeping a tree of mounts, 
akin to the device tree, and working from the deepest nodes up? (In 
conjunction with what I already suggested)?

Regards,

Nigel
-- 
See http://www.tuxonice.net for Howtos, FAQs, mailing
lists, wiki and bugzilla info.

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  parent reply	other threads:[~2007-07-21 22:16 UTC|newest]

Thread overview: 141+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <Pine.LNX.4.44L0.0707171416120.3728-100000@iolanthe.rowland.org>
2007-07-17 20:17 ` Hibernation considerations Rafael J. Wysocki
2007-07-17 20:27 ` david
2007-07-17 21:20   ` Rafael J. Wysocki
2007-07-17 22:38   ` Alan Stern
     [not found] ` <200707172217.01890.rjw@sisk.pl>
2007-07-17 20:34   ` david
2007-07-17 20:54     ` Jeremy Maitin-Shepard
     [not found]     ` <87fy3mg39r.fsf@jbms.ath.cx>
2007-07-17 21:04       ` david
     [not found]     ` <200707172323.51702.rjw@sisk.pl>
2007-07-17 21:17       ` david
     [not found]         ` <871wf6g1q1.fsf@jbms.ath.cx>
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 21:27         ` Jeremy Maitin-Shepard
2007-07-17 21:43         ` Rafael J. Wysocki
2007-07-17 21:23     ` Rafael J. Wysocki
2007-07-17 20:34   ` Jeremy Maitin-Shepard
     [not found]   ` <87odiag45q.fsf@jbms.ath.cx>
     [not found]     ` <200707151433.34625.rjw@sisk.pl>
2007-07-15 12:51       ` Nigel Cunningham
2007-07-15 12:58       ` Dr. David Alan Gilbert
     [not found]       ` <200707151810.33554.a1426z@gawab.com>
2007-07-15 15:35         ` jimmy bahuleyan
2007-07-15 16:29         ` Alan Stern
     [not found]         ` <469A3EB9.8000304@gmail.com>
2007-07-15 17:40           ` Al Boldi
     [not found]       ` <469A8515.3080109@gmx.de>
2007-07-15 19:46         ` david
2007-07-15 20:13       ` david
     [not found]         ` <200707160047.28420.rjw@sisk.pl>
2007-07-15 22:42           ` david
2007-07-15 23:15             ` Alan Stern
2007-07-15 23:22             ` Rafael J. Wysocki
     [not found]             ` <200707160122.09840.rjw@sisk.pl>
2007-07-15 23:49               ` david
2007-07-16 12:06                 ` Rafael J. Wysocki
2007-07-16 12:38                   ` Jim Crilly
2007-07-16 15:29                     ` Rafael J. Wysocki
     [not found]                     ` <200707161729.16440.rjw@sisk.pl>
2007-07-17  4:28                       ` david
2007-07-17 10:42                         ` Matthew Garrett
     [not found]                         ` <20070717104231.GA32486@srcf.ucam.org>
2007-07-17 15:19                           ` david
     [not found]                           ` <Pine.LNX.4.64.0707170818460.19248@asgard.lang.hm>
2007-07-18  2:18                             ` Matthew Garrett
     [not found]                             ` <20070718021817.GA13502@srcf.ucam.org>
2007-07-18  3:54                               ` david
2007-07-18 11:10                                 ` Matthew Garrett
     [not found]                                 ` <20070718111016.GA18716@srcf.ucam.org>
2007-07-18 12:56                                   ` david
2007-07-15 22:47         ` Rafael J. Wysocki
2007-07-15 23:17         ` Alan Stern
2007-07-15 20:35       ` Cornelius Riemenschneider
     [not found]       ` <20070715125855.GA1737@gallifrey>
2007-07-15 22:38         ` Rafael J. Wysocki
     [not found]         ` <200707160038.12943.rjw@sisk.pl>
2007-07-15 22:27           ` david
     [not found]           ` <Pine.LNX.4.64.0707151526080.25614@asgard.lang.hm>
2007-07-17 17:40             ` Dr. David Alan Gilbert
     [not found]             ` <20070717174044.GA11212@gallifrey>
2007-07-17 17:49               ` david
2007-07-29  6:53           ` Vojtech Pavlik
     [not found]           ` <20070729065352.GB17084@suse.cz>
2007-07-29  9:56             ` Rafael J. Wysocki
2007-08-05 19:56             ` encrypted hibernation (was Re: Hibernation considerations) Pavel Machek
     [not found]             ` <20070805195628.GA1947@elf.ucw.cz>
2007-08-11 23:43               ` Dr. David Alan Gilbert
     [not found]               ` <20070811234356.GA19183@gallifrey>
2007-08-12 22:12                 ` Rafael J. Wysocki
2007-08-13  2:30                 ` Michael Chang
     [not found]                 ` <b14e81f00708121930n7d9eab99r6fa776120c6287c1@mail.gmail.com>
2007-08-13  4:53                   ` alon.barlev
     [not found]                 ` <200708130012.27412.rjw@sisk.pl>
2007-08-18 19:37                   ` Dr. David Alan Gilbert
     [not found]                   ` <20070818193733.GC16635@gallifrey>
2007-08-21  7:29                     ` Pavel Machek
2007-07-16  0:51       ` Hibernation considerations Matthew Garrett
     [not found]       ` <20070716005135.GB8140@srcf.ucam.org>
2007-07-16  0:51         ` david
     [not found]       ` <200707172320.16279.rjw@sisk.pl>
2007-07-20 14:01         ` Milton Miller
2007-07-20 14:48           ` Huang, Ying
2007-07-20 15:48             ` david
2007-07-22  2:17               ` Huang, Ying
     [not found]               ` <1185070634.3517.11.camel@caritas-dev.intel.com>
2007-07-22  2:32                 ` david
2007-07-20 21:34             ` Rafael J. Wysocki
     [not found]         ` <ea7a437ca4038d408ac544bbc3c2434a@bga.com>
     [not found]           ` <200707192228.05136.rjw@sisk.pl>
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 20:31                 ` david
2007-07-20 21:24                   ` Alan Stern
2007-07-20 21:34                     ` david
2007-07-20 21:37                     ` Jeremy Maitin-Shepard
     [not found]                     ` <Pine.LNX.4.64.0707201428080.5166@asgard.lang.hm>
2007-07-20 22:15                       ` Rafael J. Wysocki
2007-07-20 21:02               ` Rafael J. Wysocki
2007-07-21 11:44                 ` Miklos Szeredi
     [not found]                 ` <E1ICDNw-0008HC-00@dorka.pomaz.szeredi.hu>
2007-07-21 12:43                   ` Nigel Cunningham
     [not found]                   ` <200707212243.35602.nigel@nigel.suspend2.net>
2007-07-21 13:56                     ` Alan Stern
2007-07-21 16:13                     ` Jeremy Maitin-Shepard
     [not found]                     ` <87lkd9ohtn.fsf@jbms.ath.cx>
2007-07-21 18:12                       ` Miklos Szeredi
2007-07-21 19:20                         ` Rafael J. Wysocki
2007-07-21 22:21                         ` Nigel Cunningham
     [not found]                         ` <200707212120.04645.rjw@sisk.pl>
2007-08-01  9:22                           ` Pavel Machek
     [not found]                           ` <20070801092227.GB4808@ucw.cz>
2007-08-02 17:02                             ` Rafael J. Wysocki
2007-08-02 17:02                             ` Rafael J. Wysocki
2007-07-21 22:16                       ` Nigel Cunningham [this message]
2007-07-22 15:26                         ` Alan Stern
2007-08-01  9:19                     ` Pavel Machek
     [not found]             ` <Pine.LNX.4.64.0707191542430.28721@asgard.lang.hm>
     [not found]               ` <200707201317.58025.rjw@sisk.pl>
2007-07-20 16:56                 ` Milton Miller
     [not found]                 ` <f29402c6050f9c3ff5d83a59cea2de58@bga.com>
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
     [not found]                     ` <87ejj2pxoc.fsf@jbms.ath.cx>
2007-07-20 22:19                       ` Rafael J. Wysocki
2007-07-17 20:37     ` david
2007-07-17 20:56       ` Jeremy Maitin-Shepard
     [not found]       ` <87bqeag369.fsf@jbms.ath.cx>
2007-07-17 21:06         ` david
     [not found]         ` <Pine.LNX.4.64.0707171404330.2467@asgard.lang.hm>
2007-07-17 21:40           ` Rafael J. Wysocki
2007-07-17 21:24       ` Rafael J. Wysocki
2007-07-17 21:11     ` Rafael J. Wysocki
     [not found] <f29402c6050f9c3ff5d83a59cea2de58%40bga.com>
2007-07-20 19:09 ` Milton Miller
2007-07-20 20:23   ` Jeremy Maitin-Shepard
     [not found] <fe998950b9d5ad317d5c1f5ff4e21ac9@bga.com>
2007-07-20 19:37 ` Alan Stern
     [not found] <Pine.LNX.4.44L0.0707201408060.2546-100000@iolanthe.rowland.org>
2007-07-20 19:08 ` Milton Miller
2007-07-20 20:03 ` Oliver Neukum
     [not found] <200707202203.27849.oliver@neukum.org>
2007-07-20 20:12 ` Alan Stern
     [not found] <Pine.LNX.4.44L0.0707201608120.2546-100000@iolanthe.rowland.org>
2007-07-20 21:35 ` Oliver Neukum
     [not found] <200707202335.05519.oliver@neukum.org>
2007-07-20 22:25 ` Alan Stern
     [not found] ` <Pine.LNX.4.44L0.0707201820050.5241-100000@iolanthe.rowland.org>
2007-07-23 14:23   ` Oliver Neukum
2007-08-01  9:34   ` Pavel Machek
     [not found]   ` <20070801093437.GC4808@ucw.cz>
2007-08-03  3:50     ` david
     [not found] <877ioupxi8.fsf@jbms.ath.cx>
2007-07-20 22:35 ` Alan Stern
2007-07-20 22:43   ` david
2007-07-20 22:48   ` Jeremy Maitin-Shepard
     [not found]   ` <Pine.LNX.4.64.0707201540260.5166@asgard.lang.hm>
2007-07-21  5:21     ` Nigel Cunningham
2007-07-21 14:10     ` Alan Stern
     [not found] <Pine.LNX.4.44L0.0707210956320.8201-100000@netrider.rowland.org>
2007-07-22  3:43 ` david
     [not found] <Pine.LNX.4.64.0707212000380.6747@asgard.lang.hm>
2007-07-22 16:00 ` Alan Stern
2007-07-22 21:50   ` david
2007-07-23 15:19     ` Alan Stern
     [not found] <Pine.LNX.4.44L0.0707221116060.15224-100000@netrider.rowland.org>
2007-07-22 16:27 ` Miklos Szeredi
2007-07-22 20:09   ` Alan Stern
2007-07-22 22:42 ` Nigel Cunningham
     [not found] ` <200707230842.22121.nigel@nigel.suspend2.net>
2007-07-22 23:09   ` Rafael J. Wysocki
     [not found]   ` <200707230109.23071.rjw@sisk.pl>
2007-07-22 23:18     ` Nigel Cunningham
2007-07-23  0:04   ` Paul Mackerras
     [not found]   ` <18083.61595.217126.824924@cargo.ozlabs.ibm.com>
2007-07-23  3:11     ` Nigel Cunningham
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
     [not found]       ` <E1ICwoE-0004q8-00@dorka.pomaz.szeredi.hu>
2007-07-23 12:27         ` Rafael J. Wysocki
2007-07-23 12:31         ` Oliver Neukum
     [not found]         ` <200707231431.30372.oliver@neukum.org>
2007-07-23 13:08           ` Miklos Szeredi
     [not found]             ` <200707231601.09541.rjw@sisk.pl>
2007-07-23 14:01               ` Miklos Szeredi
2007-07-23 14:01             ` Rafael J. Wysocki
2007-07-23 19:08           ` david
     [not found] <Pine.LNX.4.44L0.0707221608140.16031-100000@netrider.rowland.org>
2007-07-22 21:54 ` david
     [not found] <200707231311.56398.nigel@nigel.suspend2.net>
2007-07-23 15:23 ` Alan Stern
     [not found] <Pine.LNX.4.44L0.0707231035150.3545-100000@iolanthe.rowland.org>
2007-07-23 19:01 ` david
     [not found] <Pine.LNX.4.64.0707231121220.3828@asgard.lang.hm>
2007-07-23 20:22 ` Alan Stern
2007-07-24 13:26   ` Huang, Ying
     [not found] <Pine.LNX.4.44L0.0707231120380.3545-100000@iolanthe.rowland.org>
2007-07-23 21:55 ` Nigel Cunningham
     [not found] ` <200707240755.01820.nigel@nigel.suspend2.net>
2007-07-23 22:10   ` Rafael J. Wysocki
     [not found] <9D7649D18729DE4BB2BD7B494F7FEDC236CF5C@pdsmsx415.ccr.corp.intel.com>
2007-07-24 14:50 ` Alan Stern

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