From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761864AbXGDPKH (ORCPT ); Wed, 4 Jul 2007 11:10:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1760542AbXGDPJy (ORCPT ); Wed, 4 Jul 2007 11:09:54 -0400 Received: from ogre.sisk.pl ([217.79.144.158]:49669 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760450AbXGDPJx convert rfc822-to-8bit (ORCPT ); Wed, 4 Jul 2007 11:09:53 -0400 From: "Rafael J. Wysocki" To: Oliver Neukum Subject: Re: [linux-pm] [PATCH] Remove process freezer from suspend to RAM pathway Date: Wed, 4 Jul 2007 17:17:04 +0200 User-Agent: KMail/1.9.5 Cc: Miklos Szeredi , paulus@samba.org, mjg59@srcf.ucam.org, linux-pm@lists.linux-foundation.org, linux-kernel@vger.kernel.org References: <20070703211227.GA28758@srcf.ucam.org> <200707041703.21808.oliver@neukum.org> In-Reply-To: <200707041703.21808.oliver@neukum.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8BIT Content-Disposition: inline Message-Id: <200707041717.05149.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday, 4 July 2007 17:03, Oliver Neukum wrote: > Am Mittwoch, 4. Juli 2007 schrieb Miklos Szeredi: > > > > And we won't know if drivers are OK until we remove the freezer, > > > > catch-22. > > > > > > I disagree.  We can learn that by auditing the drivers. > > > > In theory, yes.  But it scales far worse than letting everyone > > experiment/report/fix problems as they crop up. > > You will open many but small races. This would be very painfull > to debug. Agreed. They will not trigger 100% of the time, but sporadically and generally at random. At least the freezer problems are reproducible. ;-) Greetings, Rafael -- "Premature optimization is the root of all evil." - Donald Knuth