From owner-freebsd-current Sun Nov 28 2:59:38 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 0061414CE7 for ; Sun, 28 Nov 1999 02:59:34 -0800 (PST) (envelope-from sos@freebsd.dk) Received: (from sos@localhost) by freebsd.dk (8.9.3/8.9.1) id LAA17712; Sun, 28 Nov 1999 11:59:31 +0100 (CET) (envelope-from sos) From: Soren Schmidt Message-Id: <199911281059.LAA17712@freebsd.dk> Subject: Re: ATA and msdosfs problems / corruption In-Reply-To: from Wes Morgan at "Nov 27, 1999 07:05:43 pm" To: morganw@engr.sc.edu (Wes Morgan) Date: Sun, 28 Nov 1999 11:59:31 +0100 (CET) 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 Wes Morgan wrote: > > ad0: ATA-? disk at ata0 as master > ad0: 2015MB (4127760 sectors), 4095 cyls, 16 heads, 63 S/T, 512 B/S > ad0: 16 secs/int, 0 depth queue, DMA > ad1: ATA-4 disk at ata0 as slave > ad1: 17206MB (35239680 sectors), 34960 cyls, 16 heads, 63 S/T, 512 B/S > ad1: 16 secs/int, 31 depth queue, DMA > > The motherboard is fairly old and does not support ATA/66 etc, and the > drive with the fat fs has been rock solid so I doubt it has suddenly gone > bad. I'd like to test this with DMA turned off, what flags will disable > that? OK, I'd like to see the rest of the dmesg, from a verbose at best, before saying anything conclusive, but it looks like the Seagate dont like DMA. There are currently no flags to control the DMA/PIO behavior, the driver relies on the hardware to tell the truth. This might change though... -Søren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message