From owner-freebsd-current@FreeBSD.ORG Mon Mar 22 23:43:14 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8AEAF16A4CE for ; Mon, 22 Mar 2004 23:43:14 -0800 (PST) Received: from cmsrelay02.mx.net (cmsrelay02.mx.net [165.212.11.111]) by mx1.FreeBSD.org (Postfix) with SMTP id 6A76D43D1D for ; Mon, 22 Mar 2004 23:43:14 -0800 (PST) (envelope-from noackjr@alumni.rice.edu) Received: from uadvg128.cms.usa.net (165.212.11.128) by cmsoutbound.mx.net with SMTP; 23 Mar 2004 07:43:14 -0000 Received: from optimator.noacks.org [65.69.2.38] by uadvg128.cms.usa.net (ASMTP/noackjr@usa.net) via mtad (C8.MAIN.3.13N) with ESMTP id 485icwHrk0412M28; Tue, 23 Mar 2004 07:43:09 GMT X-USANET-Auth: 65.69.2.38 AUTH noackjr@usa.net optimator.noacks.org Received: from localhost (localhost [127.0.0.1]) by optimator.noacks.org (Postfix) with ESMTP id 39408617D; Tue, 23 Mar 2004 01:43:09 -0600 (CST) Received: from optimator.noacks.org ([127.0.0.1]) by localhost (optimator.noacks.org [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 28922-04; Tue, 23 Mar 2004 01:42:58 -0600 (CST) Received: from alumni.rice.edu (compgeek [192.168.1.10]) by optimator.noacks.org (Postfix) with ESMTP id 82862617A; Tue, 23 Mar 2004 01:42:58 -0600 (CST) Message-ID: <405FEA7E.2090000@alumni.rice.edu> Date: Tue, 23 Mar 2004 01:42:54 -0600 From: Jon Noack User-Agent: Mozilla Thunderbird 0.5+ (Windows/20040312) X-Accept-Language: en-us, en MIME-Version: 1.0 To: "Ketrien I. Saihr-Kesenchedra" References: <6.0.3.0.2.20040323011610.03842e70@mail.nls.net> <20040323062914.GL4875@camelot.theinternet.com.au> <6.0.3.0.2.20040323023317.03842be0@error404.nls.net> In-Reply-To: <6.0.3.0.2.20040323023317.03842be0@error404.nls.net> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by amavisd-new at noacks.org cc: current@freebsd.org Subject: Re: ata - interrupt seen but task queue stalled X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: noackjr@alumni.rice.edu List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Mar 2004 07:43:14 -0000 On 3/23/2004 1:34 AM, Ketrien I. Saihr-Kesenchedra wrote: > At 01:29 AM 3/23/2004, you wrote: >> I get this when I have a Pioneer DVD connected. I had to disable it in >> the BIOS to get the machine to boot. > > This is a slimline IBM/Toshiba 24x CD-ROM. Very vanilla. Doesn't do > anything over PIO4. Don't have the dmesg output for it handy. > >> Sometimes booting with media in the drive helps. > > First thing I tried, same thing. Wondering why it's forcing down to PIO4 > in the kernel to begin with, but that's a problem for another day. ie; > Once it's booting right again. ;/ ATAPI devices default to PIO (DMA off). See the ata(4) man page, specifically the 'hw.ata.atapi_dma' sysctl. To enable DMA for ATAPI devices, you have to add 'hw.ata.atapi_dma="1"' to /boot/loader.conf or use atacontrol(8). Jon