Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933916Ab0FFBQv (ORCPT ); Sat, 5 Jun 2010 21:16:51 -0400 Received: from mail-pv0-f174.google.com ([74.125.83.174]:47238 "EHLO mail-pv0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933768Ab0FFBQu convert rfc822-to-8bit (ORCPT ); Sat, 5 Jun 2010 21:16:50 -0400 MIME-Version: 1.0 In-Reply-To: References: <20100603193045.GA7188@elte.hu> <20100603232302.GA16184@elte.hu> <1275644619.27810.39462.camel@twins> <201006050138.30859.rjw@sisk.pl> Date: Sat, 5 Jun 2010 18:16:49 -0700 Message-ID: Subject: Re: suspend blockers & Android integration From: =?ISO-8859-1?Q?Arve_Hj=F8nnev=E5g?= To: Thomas Gleixner Cc: "Rafael J. Wysocki" , Peter Zijlstra , Ingo Molnar , tytso@mit.edu, Brian Swetland , Neil Brown , Alan Stern , Felipe Balbi , LKML , Florian Mickler , Linux OMAP Mailing List , Linux PM , Alan Cox , James Bottomley , Linus Torvalds , Kevin Hilman , "H. Peter Anvin" , Arjan van de Ven Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2574 Lines: 71 2010/6/5 Thomas Gleixner : > On Sat, 5 Jun 2010, Arve Hj?nnev?g wrote: >> 2010/6/5 Thomas Gleixner : >> > On Sat, 5 Jun 2010, Arve Hj?nnev?g wrote: >> >> >> > That download might take a minute or two, but that's not an >> >> >> > justification for the crapplication to run unconfined and prevent >> >> >> > lower power states. >> >> >> > >> >> >> >> >> >> I agree, but this is not a simple problem to solve. >> >> > >> >> > Not with suspend blockers, but with cgroup confinement of crap, it's >> >> > straight forward. >> >> > >> >> >> >> I don't think is is straight forward. If the a process in the frozen >> >> group holds a resource that a process in the unfrozen group needs, how >> >> do deal with that? >> > >> > I'm going to fix the framework which puts the group into freeze state >> > w/o making sure that there is no held shared resource. Come on it's >> > not rocket science. >> > >> >> I'm not sure which framework you are talking about here, but I don't >> think there is a single framework that knows about all shared >> resources. > > Damn, it's not me talking about "our framework", you are mentioning > when it fits your needs. You said you were going to fix the framework. I did know if you were talking about the cgroup framework, or the android user-space frameworks. I don't think either has knowledge about all shared resources. > > If you do not have a clearly defined user space framework, then we > talk about a completely random conglomeration of applications which > need to be brought into submission by some global brute force > approach. > > I'm tired of this, really. You just use terminlology as it fits to > defend the complete design failure of android. But you fail to trick > me :) > > Can you please explain in a consistent way how the application stack > and the underlying framework (which exists according to android docs) > is handling events and how the separation of trust level works ? > I don't think I can, since I only know small parts of it. I know some events like input event go though a single thread in our system process, while other events like network packets (which are also wakeup events) goes directly to the app. > We need to know that, otherwise we turn in circles forever. > > Thanks, > > ? ? ? ?tglx -- Arve Hj?nnev?g -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/