From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: linux-pm@lists.linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Remove process freezer from suspend to RAM pathway
Date: Tue, 3 Jul 2007 22:20:02 +0100 [thread overview]
Message-ID: <20070703212002.GA28895@srcf.ucam.org> (raw)
In-Reply-To: <Pine.LNX.4.44L0.0707031713530.8010-100000@iolanthe.rowland.org>
On Tue, Jul 03, 2007 at 05:16:37PM -0400, Alan Stern wrote:
> On Tue, 3 Jul 2007, Matthew Garrett wrote:
> > But that's fine - "Are we undergoing a systemwide suspend" is an easy
> > question to ask. Freezing processes instead means that most of those
> > paths will never be tested.
>
> The question is easy to ask, but it's not so easy to figure out what
> you should do if the answer is Yes. Freezing processes instead means
> that those "untested" paths -- in many, many drivers -- won't have to
> exist at all.
We're used to the idea of applications blocking when a resource they're
using goes away - NFS has done it forever.
--
Matthew Garrett | mjg59@srcf.ucam.org
next prev parent reply other threads:[~2007-07-03 21:20 UTC|newest]
Thread overview: 187+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20070703211227.GA28758@srcf.ucam.org>
2007-07-03 21:16 ` [PATCH] Remove process freezer from suspend to RAM pathway Alan Stern
[not found] ` <Pine.LNX.4.44L0.0707031713530.8010-100000@iolanthe.rowland.org>
2007-07-03 21:20 ` Matthew Garrett [this message]
2007-07-03 21:37 ` Rafael J. Wysocki
2007-07-03 22:21 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.0707031814440.8010-100000@iolanthe.rowland.org>
2007-07-03 22:42 ` Matthew Garrett
[not found] ` <200707032337.52544.rjw@sisk.pl>
2007-07-03 21:36 ` Matthew Garrett
[not found] ` <20070703213639.GA29149@srcf.ucam.org>
2007-07-03 21:47 ` Oliver Neukum
2007-07-03 22:46 ` Rafael J. Wysocki
2007-07-04 3:38 ` Paul Mackerras
[not found] ` <18059.5690.908102.273897@cargo.ozlabs.ibm.com>
2007-07-04 10:42 ` Rafael J. Wysocki
2007-07-04 10:58 ` Paul Mackerras
2007-07-04 11:25 ` Rafael J. Wysocki
[not found] ` <200707041325.55779.rjw@sisk.pl>
2007-07-04 11:34 ` Paul Mackerras
2007-07-04 11:51 ` Miklos Szeredi
2007-07-04 12:41 ` Theodore Tso
[not found] ` <20070704124133.GA5836@thunk.org>
2007-07-04 14:40 ` Rafael J. Wysocki
[not found] ` <E1I63Nv-0006Z9-00@dorka.pomaz.szeredi.hu>
2007-07-04 14:41 ` Rafael J. Wysocki
2007-07-04 14:45 ` Miklos Szeredi
2007-07-04 15:03 ` Oliver Neukum
[not found] ` <200707041703.21808.oliver@neukum.org>
2007-07-04 15:17 ` Rafael J. Wysocki
[not found] ` <200707041717.05149.rjw@sisk.pl>
2007-07-05 0:29 ` Paul Mackerras
[not found] ` <18060.15209.274437.471074@cargo.ozlabs.ibm.com>
2007-07-05 12:29 ` Rafael J. Wysocki
2007-07-12 15:13 ` Pavel Machek
2007-07-04 15:42 ` Alan Stern
2007-07-04 19:25 ` Miklos Szeredi
[not found] ` <E1I6ATN-0007QS-00@dorka.pomaz.szeredi.hu>
2007-07-04 21:36 ` Rafael J. Wysocki
2007-07-05 8:37 ` Miklos Szeredi
[not found] ` <E1I6Mq2-0008WB-00@dorka.pomaz.szeredi.hu>
2007-07-05 12:39 ` Rafael J. Wysocki
[not found] ` <200707051439.37737.rjw@sisk.pl>
2007-07-05 12:39 ` Miklos Szeredi
2007-07-05 16:10 ` Jeremy Fitzhardinge
[not found] ` <468D17FA.8040201@goop.org>
2007-07-05 17:45 ` Miklos Szeredi
2007-07-05 0:43 ` Paul Mackerras
[not found] ` <18060.16064.519060.755991@cargo.ozlabs.ibm.com>
2007-07-05 12:49 ` Rafael J. Wysocki
2007-07-05 0:36 ` Paul Mackerras
[not found] ` <18060.15630.812698.367707@cargo.ozlabs.ibm.com>
[not found] ` <200707051451.38497.rjw@sisk.pl>
2007-07-05 12:50 ` Johannes Berg
[not found] ` <1183639825.3818.38.camel@johannes.berg>
2007-07-05 13:47 ` Rafael J. Wysocki
2007-07-05 12:51 ` Rafael J. Wysocki
2007-07-05 14:25 ` Alan Stern
[not found] ` <18059.34264.421573.246262@cargo.ozlabs.ibm.com>
2007-07-04 14:12 ` Dmitry Torokhov
2007-07-04 15:38 ` Alan Stern
2007-07-04 19:07 ` Alan Stern
[not found] <200707082046.36864.rjw@sisk.pl>
2007-07-08 20:22 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.0707081619090.11049-100000@netrider.rowland.org>
2007-07-08 21:08 ` Pavel Machek
2007-07-08 21:21 ` Benjamin Herrenschmidt
[not found] ` <1183929708.3388.306.camel@localhost.localdomain>
2007-07-09 6:52 ` Oliver Neukum
[not found] ` <200707090852.03429.oliver@neukum.org>
2007-07-09 9:14 ` Benjamin Herrenschmidt
2007-07-09 11:56 ` Rafael J. Wysocki
[not found] <1183871941.3388.286.camel@localhost.localdomain>
2007-07-08 20:17 ` Alan Stern
[not found] <Pine.LNX.4.44L0.0707072224270.10912-100000@netrider.rowland.org>
2007-07-08 5:14 ` Benjamin Herrenschmidt
[not found] ` <1183871661.3388.282.camel@localhost.localdomain>
2007-07-08 5:19 ` Benjamin Herrenschmidt
2007-07-08 19:15 ` Rafael J. Wysocki
2007-07-08 20:16 ` Alan Stern
2007-07-08 20:55 ` Pavel Machek
[not found] ` <200707082115.27363.rjw@sisk.pl>
2007-07-08 21:03 ` Benjamin Herrenschmidt
2007-07-08 21:07 ` Pavel Machek
2007-07-08 21:45 ` Rafael J. Wysocki
[not found] ` <200707082345.27859.rjw@sisk.pl>
2007-07-08 21:54 ` Benjamin Herrenschmidt
[not found] ` <Pine.LNX.4.44L0.0707081517540.11049-100000@netrider.rowland.org>
2007-07-08 21:01 ` Pavel Machek
2007-07-08 21:20 ` Benjamin Herrenschmidt
2007-07-08 21:35 ` Rafael J. Wysocki
[not found] ` <1183929611.3388.303.camel@localhost.localdomain>
2007-07-08 22:06 ` Rafael J. Wysocki
[not found] ` <200707090006.32712.rjw@sisk.pl>
2007-07-09 0:33 ` Benjamin Herrenschmidt
2007-07-09 0:57 ` Kyle Moffett
[not found] ` <FFA29D56-3400-4EA3-8CE8-C1EF75484510@mac.com>
2007-07-09 1:32 ` Benjamin Herrenschmidt
2007-07-09 6:47 ` Oliver Neukum
[not found] ` <200707090847.43378.oliver@neukum.org>
2007-07-09 9:13 ` Benjamin Herrenschmidt
2007-07-09 9:23 ` Oliver Neukum
[not found] ` <200707091123.57400.oliver@neukum.org>
2007-07-09 9:33 ` Benjamin Herrenschmidt
2007-07-09 14:57 ` Adrian Bunk
2007-07-09 10:02 ` Pavel Machek
2007-07-09 10:05 ` Benjamin Herrenschmidt
2007-07-09 16:03 ` Alan Stern
[not found] <Pine.LNX.4.44L0.0707072218030.10912-100000@netrider.rowland.org>
2007-07-08 4:39 ` Benjamin Herrenschmidt
2007-07-08 18:46 ` Rafael J. Wysocki
2007-07-08 18:26 ` Rafael J. Wysocki
[not found] <1183855732.3388.240.camel@localhost.localdomain>
2007-07-08 2:53 ` Alan Stern
[not found] <Pine.LNX.4.44L0.0707071255590.26860-100000@netrider.rowland.org>
2007-07-08 0:48 ` Benjamin Herrenschmidt
[not found] <1183781219.3388.225.camel@localhost.localdomain>
2007-07-07 17:19 ` Alan Stern
[not found] <Pine.LNX.4.44L0.0707062210470.7605-100000@netrider.rowland.org>
2007-07-07 4:06 ` Benjamin Herrenschmidt
[not found] <Pine.LNX.4.44L0.0707061034540.3737-100000@iolanthe.rowland.org>
2007-07-07 3:44 ` Benjamin Herrenschmidt
2007-07-07 11:49 ` Pavel Machek
2007-07-08 0:40 ` Benjamin Herrenschmidt
2007-07-07 16:17 ` Alan Stern
2007-07-08 0:42 ` Benjamin Herrenschmidt
[not found] ` <1183855362.3388.233.camel@localhost.localdomain>
2007-07-08 2:24 ` Alan Stern
2007-07-08 18:20 ` Rafael J. Wysocki
[not found] <EAA83A3B-1534-458B-A6F8-D090D670D4E7@mac.com>
2007-07-07 2:59 ` Alan Stern
[not found] <Pine.LNX.4.44L0.0707061114190.3737-100000@iolanthe.rowland.org>
2007-07-07 0:43 ` Kyle Moffett
[not found] <Pine.LNX.4.44L0.0707051023520.3728-100000@iolanthe.rowland.org>
2007-07-05 17:42 ` Miklos Szeredi
2007-07-05 20:43 ` Alan Stern
[not found] <20070703224215.GA30081@srcf.ucam.org>
2007-07-04 14:38 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.0707041030540.25704-100000@netrider.rowland.org>
2007-07-04 14:58 ` Matthew Garrett
[not found] ` <20070704145818.GA7784@srcf.ucam.org>
2007-07-04 15:02 ` Oliver Neukum
2007-07-04 15:57 ` Alan Stern
[not found] <fa.ftLWBLCc+XqdYjiuxoPg+qyuUOE@ifi.uio.no>
[not found] ` <fa.Oxrm8HYXTOF4jv5LrTjEe16lCE0@ifi.uio.no>
[not found] ` <fa.d3GOse+YbAb42uYwLymWkJiH9Fw@ifi.uio.no>
2007-07-04 0:17 ` Robert Hancock
[not found] ` <468AE700.7080102@shaw.ca>
2007-07-04 0:34 ` Matthew Garrett
[not found] ` <20070704003424.GA30958@srcf.ucam.org>
2007-07-04 10:21 ` Rafael J. Wysocki
[not found] <20070703202329.GA27927@srcf.ucam.org>
2007-07-03 21:10 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.0707031708080.8010-100000@iolanthe.rowland.org>
2007-07-03 21:12 ` Matthew Garrett
[not found] <20070703042916.GA17240@srcf.ucam.org>
2007-07-03 4:54 ` Nigel Cunningham
[not found] ` <200707031454.42078.nigel@nigel.suspend2.net>
2007-07-03 5:21 ` Matthew Garrett
[not found] ` <20070703052130.GA17605@srcf.ucam.org>
2007-07-03 5:24 ` Nigel Cunningham
2007-07-03 5:48 ` Benjamin Herrenschmidt
[not found] ` <1183441706.10386.73.camel@localhost.localdomain>
2007-07-03 6:08 ` Nigel Cunningham
[not found] ` <200707031608.06348.nigel@nigel.suspend2.net>
2007-07-03 7:19 ` Benjamin Herrenschmidt
[not found] ` <1183447184.10386.102.camel@localhost.localdomain>
2007-07-03 12:56 ` Rafael J. Wysocki
[not found] ` <200707031456.40890.rjw@sisk.pl>
2007-07-03 21:14 ` Benjamin Herrenschmidt
[not found] ` <1183497290.3388.4.camel@localhost.localdomain>
2007-07-03 21:32 ` Rafael J. Wysocki
[not found] ` <200707032332.49694.rjw@sisk.pl>
2007-07-03 21:35 ` Benjamin Herrenschmidt
[not found] ` <1183498555.3388.14.camel@localhost.localdomain>
2007-07-03 22:43 ` Rafael J. Wysocki
2007-07-05 9:30 ` Pavel Machek
[not found] ` <20070705093013.GA3228@elf.ucw.cz>
2007-07-05 22:46 ` Benjamin Herrenschmidt
[not found] ` <1183675615.3388.81.camel@localhost.localdomain>
2007-07-05 23:13 ` Nigel Cunningham
[not found] ` <200707060913.05644.nigel@nigel.suspend2.net>
2007-07-05 23:20 ` Benjamin Herrenschmidt
[not found] ` <1183677643.3388.105.camel@localhost.localdomain>
2007-07-05 23:35 ` Nigel Cunningham
[not found] ` <200707060935.12706.nigel@nigel.suspend2.net>
2007-07-06 1:19 ` Kyle Moffett
[not found] ` <CF60EC03-0171-4052-924D-57555A393168@mac.com>
2007-07-06 1:37 ` Nigel Cunningham
2007-07-06 3:59 ` Benjamin Herrenschmidt
[not found] ` <1183694347.3388.114.camel@localhost.localdomain>
2007-07-06 7:35 ` Rafael J. Wysocki
2007-07-06 9:03 ` Benjamin Herrenschmidt
2007-07-06 14:38 ` Alan Stern
2007-07-06 15:42 ` Alan Stern
2007-07-06 3:54 ` Benjamin Herrenschmidt
[not found] ` <1183694055.3388.108.camel@localhost.localdomain>
2007-07-06 4:03 ` Nigel Cunningham
[not found] ` <200707061403.15932.nigel@nigel.suspend2.net>
2007-07-06 4:41 ` Benjamin Herrenschmidt
2007-07-06 5:25 ` Nigel Cunningham
2007-07-06 5:01 ` Kyle Moffett
[not found] ` <CF605B91-2425-4FC2-9434-5F8877EEEEEB@mac.com>
2007-07-06 5:53 ` Nigel Cunningham
2007-07-10 2:07 ` Nigel Cunningham
[not found] ` <200707101207.16711.nigel@nigel.suspend2.net>
2007-07-10 3:03 ` Kyle Moffett
2007-07-05 0:03 ` Pavel Machek
2007-07-03 5:49 ` Benjamin Herrenschmidt
2007-07-03 5:51 ` Benjamin Herrenschmidt
2007-07-03 6:13 ` Oliver Neukum
2007-07-03 7:37 ` Romano Giannetti
[not found] ` <200707030813.53481.oliver@neukum.org>
2007-07-03 6:51 ` Miklos Szeredi
2007-07-03 12:13 ` Matthew Garrett
[not found] ` <20070703121313.GA21318@srcf.ucam.org>
2007-07-03 13:09 ` Rafael J. Wysocki
2007-07-03 12:56 ` Rafael J. Wysocki
[not found] ` <1183441748.10386.75.camel@localhost.localdomain>
2007-07-03 13:07 ` Rafael J. Wysocki
[not found] ` <1183441887.10386.77.camel@localhost.localdomain>
2007-07-03 13:08 ` Rafael J. Wysocki
[not found] ` <200707031508.45595.rjw@sisk.pl>
2007-07-03 15:09 ` Rafael J. Wysocki
[not found] ` <200707031709.29968.rjw@sisk.pl>
2007-07-03 17:20 ` Oliver Neukum
2007-07-03 20:59 ` Rafael J. Wysocki
2007-07-03 21:35 ` Benjamin Herrenschmidt
[not found] ` <1183498518.3388.12.camel@localhost.localdomain>
2007-07-03 22:33 ` Rafael J. Wysocki
2007-07-04 23:39 ` Pavel Machek
[not found] ` <20070704233909.GB2719@elf.ucw.cz>
2007-07-05 6:53 ` Oliver Neukum
2007-07-03 18:26 ` Oliver Neukum
2007-07-03 19:13 ` Miklos Szeredi
2007-07-03 19:32 ` Oliver Neukum
2007-07-03 19:47 ` Miklos Szeredi
2007-07-03 21:20 ` Benjamin Herrenschmidt
2007-07-03 21:48 ` Oliver Neukum
[not found] ` <200707032348.42796.oliver@neukum.org>
2007-07-03 21:56 ` Benjamin Herrenschmidt
[not found] ` <1183499792.3388.16.camel@localhost.localdomain>
2007-07-03 22:04 ` Oliver Neukum
[not found] ` <200707040004.16357.oliver@neukum.org>
2007-07-03 23:08 ` Benjamin Herrenschmidt
[not found] ` <1183504112.3388.45.camel@localhost.localdomain>
2007-07-04 8:10 ` Oliver Neukum
2007-07-04 23:45 ` Pavel Machek
[not found] ` <20070704234523.GC2719@elf.ucw.cz>
2007-07-05 12:25 ` Rafael J. Wysocki
[not found] ` <200707051425.07904.rjw@sisk.pl>
2007-07-05 12:38 ` Nigel Cunningham
[not found] ` <200707052238.27889.nigel@nigel.suspend2.net>
2007-07-05 13:35 ` Rafael J. Wysocki
[not found] ` <200707051535.46196.rjw@sisk.pl>
2007-07-05 13:36 ` Nigel Cunningham
[not found] ` <200707052336.27585.nigel@nigel.suspend2.net>
2007-07-05 13:59 ` Rafael J. Wysocki
[not found] ` <200707051559.58479.rjw@sisk.pl>
2007-07-05 21:49 ` Nigel Cunningham
[not found] ` <200707060749.08665.nigel@nigel.suspend2.net>
[not found] ` <200707060940.23248.rjw@sisk.pl>
2007-07-06 7:39 ` Miklos Szeredi
[not found] ` <E1I6iPL-0003Hj-00@dorka.pomaz.szeredi.hu>
2007-07-06 7:51 ` Oliver Neukum
2007-07-06 9:09 ` Miklos Szeredi
2007-07-06 9:16 ` Nigel Cunningham
2007-07-06 9:33 ` Miklos Szeredi
2007-07-06 7:40 ` Rafael J. Wysocki
2007-07-03 21:09 ` Rafael J. Wysocki
2007-07-03 19:27 ` Pavel Machek
[not found] ` <20070703192729.GA2125@elf.ucw.cz>
2007-07-03 21:25 ` Rafael J. Wysocki
2007-07-03 21:16 ` Benjamin Herrenschmidt
[not found] ` <1183448224.12649.14.camel@localhost>
2007-07-03 8:20 ` Oliver Neukum
2007-07-03 13:12 ` Rafael J. Wysocki
2007-07-03 16:03 ` Alan Stern
2007-07-03 16:05 ` Matthew Garrett
2007-07-03 16:57 ` Alan Stern
2007-07-03 17:02 ` Matthew Garrett
2007-07-03 19:33 ` Alan Stern
2007-07-03 19:42 ` Matthew Garrett
2007-07-03 19:54 ` Alan Stern
2007-07-03 20:23 ` Matthew Garrett
2007-07-04 23:33 ` Pavel Machek
2007-07-03 4:29 Matthew Garrett
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