From owner-freebsd-questions Wed Nov 1 14:57:33 2000 Delivered-To: freebsd-questions@freebsd.org Received: from mail.thpoon.com (cr103675-a.bloor1.on.wave.home.com [24.114.152.71]) by hub.freebsd.org (Postfix) with SMTP id B4DF337B4D7 for ; Wed, 1 Nov 2000 14:57:28 -0800 (PST) Received: (qmail 2226 invoked from network); 1 Nov 2000 22:57:29 -0000 Received: from unknown (HELO tea.thpoon.com) (mail@192.168.1.2) by cr103675-a.bloor1.on.wave.home.com with SMTP; 1 Nov 2000 22:57:29 -0000 Received: from antipode by tea.thpoon.com with local (Exim 3.12 #1 (Debian)) id 13r6ox-0001qw-00 for ; Wed, 01 Nov 2000 17:57:27 -0500 To: freebsd-questions@FreeBSD.ORG Subject: Re: ad0: DMA problem fallback to PIO mode; HARD READ ERROR blk#25418687 References: <3A006927.D10FC9E0@telecom.ksu.edu> <87wven1mlu.fsf@tea.thpoon.com> <3A007B6D.CC73786B@telecom.ksu.edu> From: Arcady Genkin X-Face: 0=A/O5-+sE[Tf%X>rYr?Y5LD4,:^'jaJ!4jC&UR*ZrrK2>^`g22Qeb]!:d;}2YJ|Hq"LHdF OX`jWX|AT-WVFQ(TPhFVak)0nt$aEdlOq=1~D,:\z5QlVOrZ2(H,mKg=Xr|'VlHA="r Organization: thpoon.com Mail-Copies-To: never Date: 01 Nov 2000 17:57:27 -0500 In-Reply-To: <3A007B6D.CC73786B@telecom.ksu.edu> Message-ID: <87hf5r1eso.fsf@tea.thpoon.com> Lines: 25 User-Agent: Gnus/5.0808 (Gnus v5.8.8) XEmacs/21.1 (Channel Islands) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG nathan writes: > > Now the question is how to disable DMA in the kernel. I see option > > #options ATA_ENABLE_ATAPI_DMA > > but it's commented out. Is there any other way to tell the kernel not > > to use DMA for ata driver? > > what file is that you are looking at? My kernel config file. I also looked in LINT, but didn't find anything new. > see the handbook on building custom kernels on at freebsd.org for > complete accurate instructions This is not what I meant. I know how to recompile a kernel. I just don't know how to disable DMA. In my kernel config file DMA is not enabled... Any ideas, anyone? Thanks again, -- Arcady Genkin Don't read everything you believe. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message