From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262767AbULQH42 (ORCPT ); Fri, 17 Dec 2004 02:56:28 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262765AbULQH42 (ORCPT ); Fri, 17 Dec 2004 02:56:28 -0500 Received: from ns.virtualhost.dk ([195.184.98.160]:40155 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id S262767AbULQH4W (ORCPT ); Fri, 17 Dec 2004 02:56:22 -0500 Date: Fri, 17 Dec 2004 08:56:19 +0100 From: Jens Axboe To: "Steven A. DuChene" Cc: linux-kernel@vger.kernel.org Subject: Re: all three IO Schedulers turned on in 2.6.10-rc3-mm1 ??? Message-ID: <20041217075618.GH3045@suse.de> References: <20041216141018.D927@lapsony.sc04.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20041216141018.D927@lapsony.sc04.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Dec 16 2004, Steven A. DuChene wrote: > I downloaded and built the 2.6.10-rc3-mm1 kernel and I noticed while > configuring it that in the Device Drivers > Block devices > IO Schedulers > area that by default all three IO Schedulers are turned on. Is this a > normal condition or is there only supposed to be one of these turned on? They all default to on. There's actually a fourth that is also on, but you cannot turn that off (noop). It's there if you disable the other three, in lack of a better way to express that in Kconfig. > The reason I am concerned about this is that ever since I have booted > into this kernel I have a lot of things failing and when they fail > they return a message like "Inappropriate ioctl for device" The io schedulers don't provide any ioctls, must be something else. I suggest you strace whatever program is throwing these errors and find out what is going wrong. -- Jens Axboe