From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751344AbWFBJEE (ORCPT ); Fri, 2 Jun 2006 05:04:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751345AbWFBJEE (ORCPT ); Fri, 2 Jun 2006 05:04:04 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:44449 "EHLO amd.ucw.cz") by vger.kernel.org with ESMTP id S1751344AbWFBJEC (ORCPT ); Fri, 2 Jun 2006 05:04:02 -0400 Date: Fri, 2 Jun 2006 11:03:13 +0200 From: Pavel Machek To: Jon Smirl Cc: "D. Hazelton" , David Lang , Ondrej Zajicek , Dave Airlie , Alan Cox , Kyle Moffett , Manu Abraham , linux cbon , Helge Hafting , Valdis.Kletnieks@vt.edu, linux-kernel@vger.kernel.org, adaplas@gmail.com Subject: Re: OpenGL-based framebuffer concepts Message-ID: <20060602090313.GC25806@elf.ucw.cz> References: <20060519224056.37429.qmail@web26611.mail.ukl.yahoo.com> <9e4733910606010959o4f11d7cfp2d280c6f2019cccf@mail.gmail.com> <200606011603.57421.dhazelton@enter.net> <9e4733910606011335q5791997drc02d23f398a2acf5@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <9e4733910606011335q5791997drc02d23f398a2acf5@mail.gmail.com> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.11+cvs20060126 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Čt 01-06-06 16:35:12, Jon Smirl wrote: > On 6/1/06, D. Hazelton wrote: > >> > 5) The system needs to be robust. Daemons can be killed by the OOM > >> > mechanism, you don't want to lose your console in the middle of trying > >> > to fix a problem. This also means that you have to be able to display > >> > printk's from inside interrupt handles. > > > >Point of disagreement. Tons of userspace helpers isn't a good choice. > > Where do you get 'tons'? There will probably be one for initial reset, > one for VESA based mode setting and a few more if there is device > specific code needed for a specific card. > > Making console rely on a permanent daemon that is subject to getting > killed by the OOM mechanism is not a workable solution. Well, you keep forgetting that temporary programs are _also_ subject to OOM, and that -- in case of problems -- exec() is less likely to work than most other things. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html