From: Nigel Cunningham <ncunningham@linuxmail.org>
To: linux-pm@lists.osdl.org
Cc: David Brownell <david-b@pacbell.net>,
Linus Torvalds <torvalds@osdl.org>, Pavel Machek <pavel@ucw.cz>
Subject: Re: [PATCH 2/2] Fix console handling during suspend/resume
Date: Fri, 16 Jun 2006 12:53:08 +1000 [thread overview]
Message-ID: <200606161253.14627.ncunningham@linuxmail.org> (raw)
In-Reply-To: <1150421516.7725.88.camel@localhost.localdomain>
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Hi.
On Friday 16 June 2006 11:31, Benjamin Herrenschmidt wrote:
> > Why are people being dense and stupid? I told you in the very first
> > explanation that the IO state isn't suspended by "save_state()".
> >
> > "save_state()" would not disable the device. It would not disable the
> > queues. The device would remain usable, and 100% functional.
>
> But what is the point ? What is the relevance of a state saved if it can
> be made invalid right away by processing of IOs ? I can save state at
> any time and suspend 2 hours later, how relevant that state is ? Why not
> save the state at boot and re-use it later ? Doesn't make sense to me :)
That would be right for some drivers, but not for all (scsi request ids, eg).
The knowledge of what to do needs to be in the driver.
Regards,
Nigel
--
Nigel, Michelle and Alisdair Cunningham
5 Mitchell Street
Cobden 3266
Victoria, Australia
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next prev parent reply other threads:[~2006-06-16 2:53 UTC|newest]
Thread overview: 348+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-13 21:30 [PATCH 0/2] suspend-to-ram debugging patches Linus Torvalds
2006-06-13 21:35 ` [PATCH 1/2] Add some basic resume trace facilities Linus Torvalds
2006-06-13 22:10 ` Nigel Cunningham
2006-06-13 22:50 ` Linus Torvalds
2006-06-14 10:25 ` Pavel Machek
2006-06-13 21:40 ` [PATCH 2/2] Fix console handling during suspend/resume Linus Torvalds
2006-06-13 23:20 ` David Brownell
2006-06-13 23:46 ` Linus Torvalds
2006-06-14 0:00 ` Nigel Cunningham
2006-06-14 0:06 ` Randy.Dunlap
2006-06-14 0:18 ` Greg KH
2006-06-14 0:29 ` Nigel Cunningham
2006-06-14 0:34 ` Linus Torvalds
2006-06-14 0:29 ` David Brownell
2006-06-14 10:28 ` Pavel Machek
2006-06-14 11:15 ` Nigel Cunningham
2006-06-14 15:28 ` David Brownell
2006-06-14 10:34 ` Pavel Machek
2006-06-14 15:21 ` Linus Torvalds
2006-06-14 17:52 ` Linus Torvalds
2006-06-14 18:09 ` Dave Jones
2006-06-14 18:29 ` Linus Torvalds
2006-06-14 19:13 ` Peter Jones
2006-06-14 19:17 ` Dave Jones
2006-06-14 21:40 ` Pavel Machek
2006-06-14 22:03 ` Linus Torvalds
2006-06-14 22:12 ` Pavel Machek
2006-06-14 22:26 ` Peter Jones
2006-06-14 22:38 ` Linus Torvalds
2006-06-14 22:44 ` Pavel Machek
2006-06-14 22:59 ` Linus Torvalds
2006-06-14 23:57 ` Pavel Machek
2006-06-15 0:07 ` Linus Torvalds
2006-06-15 1:54 ` Nigel Cunningham
2006-06-15 2:48 ` David Brownell
2006-06-15 8:39 ` Pavel Machek
2006-06-15 14:56 ` Alan Stern
2006-06-15 16:14 ` Pavel Machek
2006-06-15 16:26 ` Linus Torvalds
2006-06-15 18:24 ` Pavel Machek
2006-06-15 19:35 ` Linus Torvalds
2006-06-15 20:03 ` Pavel Machek
2006-06-15 20:28 ` Linus Torvalds
2006-06-15 20:43 ` Pavel Machek
2006-06-15 21:04 ` Linus Torvalds
2006-06-15 21:27 ` Pavel Machek
2006-06-15 22:31 ` Linus Torvalds
2006-06-15 23:01 ` Pavel Machek
2006-06-16 4:15 ` Benjamin Herrenschmidt
2006-06-16 13:26 ` Pavel Machek
2006-06-16 23:05 ` Benjamin Herrenschmidt
2006-06-15 16:43 ` David Brownell
2006-06-15 16:52 ` Pavel Machek
2006-06-16 6:02 ` David Brownell
2006-06-15 16:17 ` Pavel Machek
2006-06-15 16:53 ` Linus Torvalds
2006-06-15 16:59 ` Pavel Machek
2006-06-15 17:41 ` Linus Torvalds
2006-06-15 17:51 ` Pavel Machek
2006-06-16 1:09 ` Benjamin Herrenschmidt
2006-06-15 17:04 ` Alan Stern
2006-06-15 22:17 ` Paul Mackerras
2006-06-15 22:24 ` Pavel Machek
2006-06-16 1:17 ` Benjamin Herrenschmidt
2006-06-16 1:15 ` Benjamin Herrenschmidt
2006-06-16 2:28 ` Linus Torvalds
2006-06-16 2:50 ` Nigel Cunningham
2006-06-16 3:22 ` Linus Torvalds
2006-06-16 3:36 ` Nigel Cunningham
2006-06-16 14:03 ` Pavel Machek
2006-06-16 15:53 ` Alan Stern
2006-06-15 1:46 ` David Brownell
2006-06-15 6:00 ` Nigel Cunningham
2006-06-15 16:22 ` David Brownell
2006-06-15 8:41 ` Pavel Machek
2006-06-15 16:57 ` David Brownell
2006-06-15 18:03 ` Pavel Machek
2006-06-15 18:31 ` Linus Torvalds
2006-06-15 19:19 ` Pavel Machek
2006-06-15 19:40 ` Linus Torvalds
2006-06-15 20:30 ` Alan Stern
2006-06-15 20:56 ` Linus Torvalds
2006-06-15 21:10 ` Pavel Machek
2006-06-15 22:01 ` Linus Torvalds
2006-06-15 22:20 ` Pavel Machek
2006-06-15 22:41 ` Linus Torvalds
2006-06-16 13:29 ` Pavel Machek
2006-06-15 22:21 ` Pavel Machek
2006-06-15 22:44 ` Linus Torvalds
2006-06-15 21:27 ` Alan Stern
2006-06-15 22:18 ` Linus Torvalds
2006-06-16 12:49 ` Pavel Machek
2006-06-16 13:22 ` Pavel Machek
2006-06-16 1:31 ` Benjamin Herrenschmidt
2006-06-16 2:53 ` Nigel Cunningham [this message]
2006-06-16 3:16 ` Linus Torvalds
2006-06-16 4:04 ` Benjamin Herrenschmidt
2006-06-16 1:26 ` Benjamin Herrenschmidt
2006-06-16 2:36 ` Linus Torvalds
2006-06-16 3:37 ` Benjamin Herrenschmidt
2006-06-16 4:37 ` Linus Torvalds
2006-06-16 6:02 ` Benjamin Herrenschmidt
2006-06-16 13:56 ` Pavel Machek
2006-06-16 1:21 ` Benjamin Herrenschmidt
2006-06-16 2:29 ` Linus Torvalds
2006-06-16 3:33 ` Benjamin Herrenschmidt
2006-06-16 4:35 ` David Brownell
2006-06-16 5:23 ` Linus Torvalds
2006-06-16 6:18 ` Benjamin Herrenschmidt
2006-06-16 13:42 ` Pavel Machek
2006-06-16 16:48 ` David Brownell
2006-06-16 13:58 ` Pavel Machek
2006-06-16 14:04 ` David Brownell
2006-06-16 18:31 ` Linus Torvalds
2006-06-16 18:45 ` Linus Torvalds
2006-06-16 23:04 ` Benjamin Herrenschmidt
2006-06-18 17:16 ` David Brownell
2006-06-16 21:28 ` Pavel Machek
2006-06-18 17:09 ` David Brownell
2006-06-18 17:16 ` David Brownell
2006-06-18 17:48 ` Linus Torvalds
2006-06-18 18:18 ` Linus Torvalds
2006-06-19 0:34 ` David Brownell
2006-06-20 2:15 ` Linus Torvalds
2006-06-20 22:47 ` Benjamin Herrenschmidt
2006-06-19 3:54 ` David Brownell
2006-06-20 22:06 ` Linus Torvalds
2006-06-21 21:17 ` David Brownell
2006-06-20 22:44 ` Benjamin Herrenschmidt
2006-06-21 0:49 ` Linus Torvalds
2006-06-21 1:10 ` Benjamin Herrenschmidt
2006-06-21 2:40 ` Linus Torvalds
2006-06-21 2:57 ` Benjamin Herrenschmidt
2006-06-21 3:23 ` Linus Torvalds
2006-06-21 3:59 ` Benjamin Herrenschmidt
2006-06-21 4:22 ` Linus Torvalds
2006-06-21 4:36 ` Linus Torvalds
2006-06-21 5:04 ` Benjamin Herrenschmidt
2006-06-21 15:15 ` Linus Torvalds
2006-06-21 15:33 ` Alan Stern
2006-06-21 16:03 ` Linus Torvalds
2006-06-21 16:35 ` Alan Stern
2006-06-21 17:04 ` Linus Torvalds
2006-06-21 18:53 ` Alan Stern
2006-06-21 20:49 ` Linus Torvalds
2006-06-22 2:16 ` David Brownell
2006-06-22 1:04 ` Benjamin Herrenschmidt
2006-06-22 1:01 ` Benjamin Herrenschmidt
2006-06-22 2:22 ` Linus Torvalds
2006-06-22 2:47 ` Linus Torvalds
2006-06-22 3:21 ` Benjamin Herrenschmidt
2006-06-22 3:18 ` Benjamin Herrenschmidt
2006-06-22 4:08 ` Linus Torvalds
2006-06-22 4:58 ` Benjamin Herrenschmidt
2006-06-22 16:10 ` Linus Torvalds
2006-06-22 18:30 ` David Brownell
2006-06-22 19:23 ` Linus Torvalds
2006-06-22 22:43 ` Benjamin Herrenschmidt
2006-06-23 18:06 ` David Brownell
2006-06-23 19:23 ` Linus Torvalds
2006-06-23 23:32 ` Adam Belay
2006-06-23 23:44 ` Linus Torvalds
2006-06-24 0:10 ` Linus Torvalds
2006-06-24 0:39 ` Benjamin Herrenschmidt
2006-06-24 3:30 ` David Brownell
2006-06-24 4:10 ` Linus Torvalds
2006-06-24 0:22 ` Benjamin Herrenschmidt
2006-06-24 0:29 ` Benjamin Herrenschmidt
2006-06-24 1:00 ` Linus Torvalds
2006-06-24 2:42 ` Adam Belay
2006-06-24 3:12 ` Linus Torvalds
2006-06-24 4:04 ` David Brownell
2006-06-24 4:35 ` Linus Torvalds
2006-06-25 8:23 ` Adam Belay
2006-06-25 17:15 ` Linus Torvalds
2006-06-26 23:30 ` Greg KH
2006-06-24 4:07 ` Linus Torvalds
2006-06-24 11:16 ` Nigel Cunningham
2006-06-24 16:24 ` Alan Stern
2006-06-24 22:28 ` Linus Torvalds
2006-06-24 22:41 ` Pavel Machek
2006-06-25 1:30 ` Linus Torvalds
2006-06-25 2:16 ` Alan Stern
2006-06-25 2:32 ` Linus Torvalds
2006-06-25 16:35 ` Alan Stern
2006-06-25 2:02 ` Alan Stern
2006-06-25 23:56 ` Nigel Cunningham
2006-06-26 23:31 ` Greg KH
2006-06-24 22:39 ` Pavel Machek
2006-06-29 0:37 ` Greg KH
2006-06-29 0:48 ` Linus Torvalds
2006-06-29 3:09 ` Greg KH
2006-06-29 3:24 ` Linus Torvalds
2006-06-29 4:21 ` Greg KH
2006-06-29 6:26 ` Greg KH
2006-06-29 22:58 ` Greg KH
2006-06-29 9:50 ` Pavel Machek
2006-07-06 22:27 ` David Brownell
2006-07-06 22:31 ` Greg KH
2006-07-08 17:45 ` PM_TRACE causing FSCK David Brownell
2006-07-06 23:27 ` [PATCH 2/2] Fix console handling during suspend/resume Dave Jones
2006-07-06 23:43 ` Linus Torvalds
2006-07-06 23:59 ` Dave Jones
2006-07-07 4:48 ` Linus Torvalds
2006-07-07 8:35 ` Pavel Machek
2006-07-06 23:51 ` David Brownell
2006-07-09 23:28 ` David Brownell
2006-07-10 7:53 ` Pavel Machek
2006-07-25 18:17 ` bus.suspend_prepare() David Brownell
2006-07-25 18:29 ` bus.suspend_prepare() Linus Torvalds
2006-07-25 19:17 ` bus.suspend_prepare() David Brownell
2006-07-25 22:24 ` bus.suspend_prepare() Nigel Cunningham
2006-07-26 10:12 ` bus.suspend_prepare() Pavel Machek
2006-07-26 10:11 ` bus.suspend_prepare() Pavel Machek
2006-06-24 4:52 ` [PATCH 2/2] Fix console handling during suspend/resume Benjamin Herrenschmidt
2006-06-24 5:18 ` Linus Torvalds
2006-06-24 6:30 ` Benjamin Herrenschmidt
2006-06-24 17:06 ` Rafael J. Wysocki
2006-06-27 6:08 ` Adam Belay
2006-06-27 6:18 ` Linus Torvalds
2006-06-27 6:58 ` Benjamin Herrenschmidt
2006-06-27 18:50 ` Linus Torvalds
2006-06-27 22:09 ` Benjamin Herrenschmidt
2006-06-27 7:07 ` Adam Belay
2006-06-27 15:33 ` Alan Stern
2006-06-28 0:16 ` Linus Torvalds
2006-07-05 18:40 ` David Brownell
2006-07-05 20:12 ` Linus Torvalds
2006-07-05 23:03 ` David Brownell
2006-07-06 1:15 ` Pavel Machek
2006-07-06 1:52 ` Nigel Cunningham
2006-07-06 7:15 ` Nigel Cunningham
2006-07-06 13:22 ` memcpy() in swsusp (was: Re: [PATCH 2/2] Fix console handling during suspend/resume) Rafael J. Wysocki
2006-07-06 14:19 ` David Brownell
2006-07-06 14:26 ` Rafael J. Wysocki
2006-07-06 20:35 ` Rafael J. Wysocki
2006-07-06 23:36 ` Pavel Machek
2006-07-06 20:44 ` David Brownell
2006-07-06 20:55 ` Rafael J. Wysocki
2006-07-06 21:01 ` Dave Jones
2006-07-06 21:07 ` David Brownell
2006-07-06 21:18 ` Rafael J. Wysocki
2006-07-06 22:06 ` Dave Jones
2006-07-07 8:20 ` Rafael J. Wysocki
2006-06-24 6:41 ` [PATCH 2/2] Fix console handling during suspend/resume Benjamin Herrenschmidt
2006-06-24 11:58 ` Nigel Cunningham
2006-06-24 21:20 ` Linus Torvalds
2006-06-25 1:10 ` David Brownell
2006-06-28 22:13 ` Pavel Machek
2006-06-24 3:33 ` David Brownell
2006-06-23 23:53 ` Benjamin Herrenschmidt
2006-06-24 3:28 ` David Brownell
2006-06-24 21:33 ` Pavel Machek
2006-06-25 1:00 ` David Brownell
2006-06-24 3:28 ` David Brownell
2006-06-24 11:57 ` Jim Gettys
2006-06-25 23:03 ` Pavel Machek
2006-06-25 23:18 ` Jim Gettys
2006-07-03 21:32 ` Pavel Machek
2006-06-26 0:16 ` David Brownell
2006-06-28 22:16 ` Pavel Machek
2006-06-28 23:38 ` David Brownell
2006-06-22 22:21 ` Benjamin Herrenschmidt
2006-06-22 22:31 ` Linus Torvalds
2006-06-22 23:11 ` Benjamin Herrenschmidt
2006-06-22 23:19 ` Linus Torvalds
2006-06-22 23:21 ` Linus Torvalds
2006-06-22 23:31 ` Benjamin Herrenschmidt
2006-06-22 23:41 ` Linus Torvalds
2006-06-23 0:01 ` Pavel Machek
2006-06-23 0:14 ` Benjamin Herrenschmidt
2006-06-23 0:05 ` Benjamin Herrenschmidt
2006-06-23 0:08 ` Benjamin Herrenschmidt
2006-06-23 16:26 ` David Brownell
2006-06-23 20:36 ` Adam Belay
2006-06-23 21:48 ` cpufreq-related updates [WAS: Fix console handling during suspend/resume] David Brownell
2006-06-23 22:10 ` Greg KH
2006-06-23 23:54 ` David Brownell
2006-06-23 22:53 ` Adam Belay
2006-06-22 23:31 ` [PATCH 2/2] Fix console handling during suspend/resume Pavel Machek
2006-06-22 23:42 ` Linus Torvalds
2006-06-22 23:51 ` Pavel Machek
2006-06-23 18:15 ` David Brownell
2006-06-24 21:35 ` Pavel Machek
2006-06-24 22:00 ` Linus Torvalds
2006-06-25 0:57 ` Benjamin Herrenschmidt
2006-06-25 1:05 ` Linus Torvalds
2006-06-25 1:12 ` Benjamin Herrenschmidt
2006-06-25 1:34 ` Linus Torvalds
2006-06-25 2:21 ` Benjamin Herrenschmidt
2006-06-25 23:09 ` Pavel Machek
2006-06-22 23:53 ` Linus Torvalds
2006-06-22 23:56 ` Pavel Machek
2006-06-23 16:37 ` David Brownell
2006-06-22 23:13 ` suspend debuggability [was Re: [PATCH 2/2] Fix console handling during suspend/resume] Pavel Machek
2006-06-22 5:52 ` [PATCH 2/2] Fix console handling during suspend/resume David Brownell
2006-06-22 6:28 ` Benjamin Herrenschmidt
2006-06-22 16:43 ` Linus Torvalds
2006-06-22 18:19 ` David Brownell
2006-06-23 17:18 ` David Brownell
2006-06-23 17:43 ` David Brownell
2006-06-23 18:18 ` wakeup events [WAS: Re*N Fix console handling] David Brownell
2006-06-21 21:13 ` [PATCH 2/2] Fix console handling during suspend/resume David Brownell
2006-06-22 0:42 ` Benjamin Herrenschmidt
2006-06-21 22:54 ` Benjamin Herrenschmidt
2006-06-22 0:15 ` Benjamin Herrenschmidt
2006-06-22 2:21 ` David Brownell
2006-06-22 3:23 ` Benjamin Herrenschmidt
2006-06-22 5:36 ` David Brownell
2006-06-22 16:17 ` Alan Stern
2006-06-22 18:27 ` David Brownell
2006-06-22 20:31 ` Alan Stern
2006-06-22 23:48 ` David Brownell
2006-06-23 2:41 ` Alan Stern
2006-06-23 16:43 ` David Brownell
2006-06-23 18:32 ` Alan Stern
2006-06-24 3:39 ` David Brownell
2006-06-24 16:19 ` Alan Stern
2006-06-25 2:20 ` Alan Stern
2006-06-22 22:30 ` Benjamin Herrenschmidt
2006-06-23 2:35 ` Alan Stern
2006-06-21 21:22 ` David Brownell
2006-06-21 4:45 ` Benjamin Herrenschmidt
2006-06-21 15:08 ` Linus Torvalds
2006-06-21 22:51 ` Benjamin Herrenschmidt
2006-06-22 0:48 ` Linus Torvalds
2006-06-21 21:21 ` David Brownell
2006-06-21 21:18 ` David Brownell
2006-06-22 1:08 ` Benjamin Herrenschmidt
2006-06-22 1:24 ` Linus Torvalds
2006-06-22 1:33 ` Benjamin Herrenschmidt
2006-06-14 23:02 ` Rafael J. Wysocki
2006-06-14 23:32 ` Pavel Machek
2006-06-15 9:39 ` Rafael J. Wysocki
2006-06-16 0:47 ` Benjamin Herrenschmidt
2006-06-16 1:03 ` Benjamin Herrenschmidt
2006-06-14 22:37 ` Linus Torvalds
2006-06-15 0:00 ` Pavel Machek
2006-06-15 0:12 ` Linus Torvalds
2006-06-15 9:11 ` suspend-devices-not-cpu [was Re: [PATCH 2/2] Fix console handling during suspend/resume] Pavel Machek
2006-06-15 0:39 ` [PATCH 2/2] Fix console handling during suspend/resume Adam Belay
2006-06-15 0:40 ` Greg KH
2006-06-15 1:50 ` Adam Belay
2006-06-15 0:01 ` Linus Torvalds
2006-06-15 8:23 ` Pavel Machek
2006-06-16 1:02 ` suspend/resume issue (Was: [PATCH 2/2] Fix console handling during suspend/resume) Benjamin Herrenschmidt
2006-06-16 8:01 ` [PATCH 2/2] Fix console handling during suspend/resume Benjamin Herrenschmidt
2006-06-16 0:45 ` [PATCH 0/2] suspend-to-ram debugging patches Benjamin Herrenschmidt
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