From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759072AbXGCIU0 (ORCPT ); Tue, 3 Jul 2007 04:20:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755128AbXGCIUR (ORCPT ); Tue, 3 Jul 2007 04:20:17 -0400 Received: from smtp-out001.kontent.com ([81.88.40.215]:35254 "EHLO smtp-out.kontent.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753376AbXGCIUQ convert rfc822-to-8bit (ORCPT ); Tue, 3 Jul 2007 04:20:16 -0400 From: Oliver Neukum To: Romano Giannetti Subject: Re: [PATCH] Remove process freezer from suspend to RAM pathway Date: Tue, 3 Jul 2007 10:20:13 +0200 User-Agent: KMail/1.9.7 Cc: Matthew Garrett , linux-kernel@vger.kernel.org, linux-pm@lists.linux-foundation.org References: <20070703042916.GA17240@srcf.ucam.org> <1183448224.12649.14.camel@localhost> In-Reply-To: <1183448224.12649.14.camel@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8BIT Content-Disposition: inline Message-Id: <200707031020.13691.oliver@neukum.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Am Dienstag, 3. Juli 2007 schrieb Romano Giannetti: > On Tue, 2007-07-03 at 05:29 +0100, Matthew Garrett wrote: > > or alternatively we  could do what we do for suspend to RAM on other > > platforms (PPC and APM) and just not use the freezer. > > As a data point, I am running with this patch on top of 2.6.21.2 the > last 3+ weeks, with an average of 5/6 STR cycles a day, and had no > problems at all. (Sony vaio pcg-fx701). Just normal work, I didn't try > to stress the thing, but I have quite a few times suspended/resumed over > a big compile without a glitch. > > What are the risks of this patch supposed to be? You did this test only while stressing normal block devices. Try provoking races in character devices. Regards Oliver