linux-kernel - Re: Attempted summary of suspend-blockers LKML thread

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20100807130718.GC11817@opensource.wolfsonmicro.com>
Date:	Sat, 7 Aug 2010 14:07:18 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc:	david@...g.hm, Brian Swetland <swetland@...gle.com>,
	kevin granade <kevin.granade@...il.com>,
	Arve Hj?nnev?g <arve@...roid.com>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Arjan van de Ven <arjan@...radead.org>,
	linux-pm@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
	pavel@....cz, florian@...kler.org, stern@...land.harvard.edu,
	peterz@...radead.org, tglx@...utronix.de, alan@...rguk.ukuu.org.uk
Subject: Re: Attempted summary of suspend-blockers LKML thread

On Fri, Aug 06, 2010 at 05:36:42PM -0700, Paul E. McKenney wrote:
> On Sat, Aug 07, 2010 at 01:14:32AM +0100, Mark Brown wrote:

> > services in themselves (like system monitoring).  It's really just
> > semantics to treat them differently to something like a cellular modem -
> > at a high level they're both just independant processors ticking away
> > without the application processor.

> I agree that a smartphone's cellular modem can be argued to be very
> similar to wake-on-LAN.  The smartphone applications that seem to me
> to be very different from wake-on-LAN are things like audio playback,
> where the system is providing service to the user during the time that
> it is suspended.

The cellular modem case includes not just hanging off the network but
also being on a call - the voice path for a phone call doesn't need the
CPU to do anything.  It's probably best to view a phone as a bunch of
interconnected systems that happen to sit in the same box, and there's
various design decisions that can be taken about which systems own the
shared components.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/