From owner-freebsd-current Sun Oct 10 11:17:32 1999 Delivered-To: freebsd-current@freebsd.org Received: from freebsd.dk (freebsd.dk [212.242.42.178]) by hub.freebsd.org (Postfix) with ESMTP id 0988914FFF for ; Sun, 10 Oct 1999 11:17:15 -0700 (PDT) (envelope-from sos@freebsd.dk) Received: (from sos@localhost) by freebsd.dk (8.9.3/8.9.1) id UAA34924; Sun, 10 Oct 1999 20:17:09 +0200 (CEST) (envelope-from sos) From: Soren Schmidt Message-Id: <199910101817.UAA34924@freebsd.dk> Subject: Re: ATA driver In-Reply-To: from Kenneth Culver at "Oct 10, 1999 01:48:57 pm" To: culverk@culverk.student.umd.edu (Kenneth Culver) Date: Sun, 10 Oct 1999 20:17:09 +0200 (CEST) Cc: freebsd-current@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL54 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG It seems Kenneth Culver wrote: > ata0: slave: success setting up UDMA2 mode on PIIX4 chip > ad1: piomode=4 dmamode=2 udmamode=2 > ad1: ATA-3 disk at ata0 as slave > ad1: 4120MB (8438850 sectors), 8930 cyls, 15 heads, 63 S/T, 512 B/S > ad1: 16 secs/int, 0 depth queue, UDMA33 Uh oh, I had one of those once, no end of trouble, have you ever had it working in any DMA mode reliably (mine wouldn't).. One possible solution is to tell the bios it is PIO3 only mode, the ATA driver will then run DMA on it but with relaxed timing... -Søren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message