Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266381AbUAVUBX (ORCPT ); Thu, 22 Jan 2004 15:01:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266325AbUAVUBX (ORCPT ); Thu, 22 Jan 2004 15:01:23 -0500 Received: from h00a0cca1a6cf.ne.client2.attbi.com ([65.96.182.167]:28801 "EHLO h00a0cca1a6cf.ne.client2.attbi.com") by vger.kernel.org with ESMTP id S266381AbUAVUBR (ORCPT ); Thu, 22 Jan 2004 15:01:17 -0500 Date: Thu, 22 Jan 2004 15:00:44 -0500 From: timothy parkinson To: john stultz Cc: hauan@cmu.edu, Linux Kernel Subject: Re: 2.6.1 "clock preempt"? Message-ID: <20040122200044.GA593@h00a0cca1a6cf.ne.client2.attbi.com> Mail-Followup-To: john stultz , hauan@cmu.edu, Linux Kernel References: <1074630968.19174.49.camel@steinar.cheme.cmu.edu> <1074633977.16374.67.camel@cog.beaverton.ibm.com> <1074697593.5650.26.camel@steinar.cheme.cmu.edu> <1074709166.16374.73.camel@cog.beaverton.ibm.com> <20040122193704.GA552@h00a0cca1a6cf.ne.client2.attbi.com> <1074800554.21658.68.camel@cog.beaverton.ibm.com> <20040122195026.GA579@h00a0cca1a6cf.ne.client2.attbi.com> <1074801242.21658.71.camel@cog.beaverton.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1074801242.21658.71.camel@cog.beaverton.ibm.com> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1250 Lines: 54 su -c "/usr/sbin/hdparm /dev/hda" Password: /dev/hda: multcount = 16 (on) IO_support = 1 (32-bit) unmaskirq = 0 (off) using_dma = 0 (off) keepsettings = 0 (off) readonly = 0 (off) readahead = 256 (on) geometry = 65535/16/63, sectors = 156301488, start = 0 but... su -c "/usr/sbin/hdparm -d1 /dev/hda" Password: /dev/hda: setting using_dma to 1 (on) HDIO_SET_DMA failed: Operation not permitted using_dma = 0 (off) it's an 80gig western digital from about 2-3 years ago. On Thu, Jan 22, 2004 at 11:54:02AM -0800, john stultz wrote: > On Thu, 2004-01-22 at 11:50, timothy parkinson wrote: > > well, it does *say* the following: > > > > ..... host bus clock speed is 133.0266 MHz. > > checking TSC synchronization across 2 CPUs: passed. > > Starting migration thread for cpu 0 > > That looks fine then. > > > is there a good way to check IDE PIO? > > Run "/sbin/hdparm /dev/hdX" and look for "using_dma = 0". > > thanks > -john > > > > > > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/