From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932473AbVHRVif (ORCPT ); Thu, 18 Aug 2005 17:38:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932475AbVHRVie (ORCPT ); Thu, 18 Aug 2005 17:38:34 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:10933 "EHLO amd.ucw.cz") by vger.kernel.org with ESMTP id S932473AbVHRVie (ORCPT ); Thu, 18 Aug 2005 17:38:34 -0400 Date: Thu, 18 Aug 2005 23:38:23 +0200 From: Pavel Machek To: Adam Goode Cc: Jens Axboe , Alejandro Bonilla Beeche , linux-kernel , hdaps devel Subject: Re: HDAPS, Need to park the head for real Message-ID: <20050818213823.GA4275@elf.ucw.cz> References: <1124205914.4855.14.camel@localhost.localdomain> <20050816200708.GE3425@suse.de> <20050818204904.GE516@openzaurus.ucw.cz> <1124399756.28353.0.camel@lynx.auton.cs.cmu.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1124399756.28353.0.camel@lynx.auton.cs.cmu.edu> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! > > Please make it "echo 1 > frozen", then userspace can do "echo 0 > frozen" > > after five seconds. > > What if the code to do "echo 0 > frozen" is swapped out to disk? ;) Emergency head parker needs to be pagelocked for other reasons. You do not want to page it from disk while your notebook is in free fall. Pavel -- if you have sharp zaurus hardware you don't need... you know my address