From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>,
Parag Warudkar <parag.lkml@gmail.com>,
Matt Carlson <mcarlson@broadcom.com>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: 2.6.29-rc3: tg3 dead after resume
Date: Sat, 07 Feb 2009 14:27:26 +1100 [thread overview]
Message-ID: <1233977246.31963.64.camel@pasglop> (raw)
In-Reply-To: <alpine.LFD.2.00.0901311639530.3067@localhost.localdomain>
On Sat, 2009-01-31 at 16:51 -0800, Linus Torvalds wrote:
>
> On Sat, 31 Jan 2009, Linus Torvalds wrote:
> >
> > For a USB host controller, for example, it really could make sense to do
> > that - just leave all the core host controller stuff running, and the only
> > thing the "suspend()" callback does is to send the commands to the actual
> > devices, it doesn't necessarily touch the host controller itself at all.
>
> Same is quite likely true of things like video graphics adapters. Again,
> for all the same reasons. Think about all those fbcon drivers. They will
> use DMA for things. And again, there are very compelling debugging reasons
> to not suspend them for real until suspend_late (if even then).
Actually, there are things like service processors etc... that only know
to communicate via DMA and little else via a little mailbox in some
reserved area of system memory...
Ben.
next prev parent reply other threads:[~2009-02-07 3:27 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-29 0:14 2.6.29-rc3: tg3 dead after resume Parag Warudkar
2009-01-29 1:09 ` Linus Torvalds
2009-01-29 1:49 ` Parag Warudkar
2009-01-29 2:10 ` Linus Torvalds
2009-01-29 2:19 ` Matt Carlson
2009-01-29 22:22 ` Rafael J. Wysocki
2009-01-29 18:42 ` Matt Carlson
2009-01-29 22:06 ` Parag Warudkar
2009-01-29 22:22 ` Matt Carlson
2009-01-29 22:35 ` Parag Warudkar
2009-01-29 23:10 ` Rafael J. Wysocki
2009-01-30 18:40 ` Matt Carlson
2009-01-30 22:50 ` Parag Warudkar
2009-01-30 23:06 ` Linus Torvalds
2009-01-30 23:33 ` Linus Torvalds
2009-01-30 23:45 ` Parag Warudkar
2009-01-30 23:57 ` Linus Torvalds
2009-01-30 23:59 ` Rafael J. Wysocki
2009-01-31 0:28 ` Parag Warudkar
2009-01-31 0:38 ` Rafael J. Wysocki
2009-01-31 0:44 ` Ingo Molnar
2009-01-31 0:47 ` Rafael J. Wysocki
2009-01-31 1:21 ` Parag Warudkar
2009-01-31 1:37 ` Rafael J. Wysocki
2009-01-31 1:42 ` Parag Warudkar
2009-02-03 9:29 ` Rafael J. Wysocki
2009-02-03 21:27 ` Parag Warudkar
2009-02-03 22:15 ` Rafael J. Wysocki
2009-02-04 0:38 ` Parag Warudkar
2009-02-04 0:41 ` Rafael J. Wysocki
2009-02-07 3:00 ` Linus Torvalds
2009-02-07 18:03 ` Jesse Barnes
2009-01-31 1:46 ` Linus Torvalds
2009-01-31 1:54 ` Parag Warudkar
2009-01-31 2:25 ` Linus Torvalds
2009-01-31 2:40 ` Parag Warudkar
2009-01-31 18:51 ` Rafael J. Wysocki
2009-01-31 2:19 ` Linus Torvalds
2009-01-31 20:45 ` Rafael J. Wysocki
2009-01-31 1:41 ` Linus Torvalds
2009-01-31 21:08 ` Rafael J. Wysocki
2009-01-31 21:42 ` What should PCI core do during suspend-resume? (was: Re: 2.6.29-rc3: tg3 dead after resume) Rafael J. Wysocki
2009-01-31 21:59 ` Linus Torvalds
2009-01-31 23:08 ` Rafael J. Wysocki
2009-01-31 23:27 ` Linus Torvalds
2009-01-31 23:39 ` Linus Torvalds
2009-02-01 0:36 ` Rafael J. Wysocki
2009-02-01 1:06 ` Linus Torvalds
2009-02-01 1:13 ` Linus Torvalds
2009-02-01 1:20 ` Arjan van de Ven
2009-02-01 1:24 ` Rafael J. Wysocki
2009-02-07 9:21 ` Pavel Machek
2009-01-31 21:47 ` 2.6.29-rc3: tg3 dead after resume Linus Torvalds
2009-01-31 22:46 ` Rafael J. Wysocki
2009-01-31 23:01 ` Linus Torvalds
2009-02-01 0:11 ` Rafael J. Wysocki
2009-02-01 0:32 ` Linus Torvalds
2009-02-01 0:41 ` Rafael J. Wysocki
2009-02-01 0:51 ` Linus Torvalds
2009-02-07 3:27 ` Benjamin Herrenschmidt [this message]
2009-02-07 3:26 ` Benjamin Herrenschmidt
2009-01-29 23:03 ` Rafael J. Wysocki
2009-01-29 23:41 ` Matt Carlson
2009-01-30 0:10 ` Rafael J. Wysocki
2009-01-30 22:31 ` Parag Warudkar
2009-01-30 22:36 ` Linus Torvalds
2009-01-30 22:54 ` Rafael J. Wysocki
2009-01-30 23:07 ` Linus Torvalds
2009-01-30 23:13 ` Parag Warudkar
2009-01-30 23:31 ` Rafael J. Wysocki
2009-01-30 23:51 ` Linus Torvalds
2009-01-31 0:07 ` Rafael J. Wysocki
2009-01-31 0:34 ` Rafael J. Wysocki
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