From owner-freebsd-stable Fri Mar 31 13:35:34 2000 Delivered-To: freebsd-stable@freebsd.org Received: from got.wedgie.org (got.wedgie.org [216.181.169.146]) by hub.freebsd.org (Postfix) with ESMTP id 8CA6A37BDEC for ; Fri, 31 Mar 2000 13:35:29 -0800 (PST) (envelope-from jgarman@got.wedgie.org) Received: by got.wedgie.org (Postfix, from userid 1000) id 49856D906; Fri, 31 Mar 2000 16:35:27 -0500 (EST) Date: Fri, 31 Mar 2000 16:35:27 -0500 From: Jason Garman To: =?iso-8859-1?Q?Thomas_K=F6llmann?= Cc: Grigoriy Strokin , freebsd-stable@FreeBSD.ORG Subject: Re: New kernel with its ATA drivers damages the filesystem Message-ID: <20000331163527.B24581@got.wedgie.org> Reply-To: jgarman@wedgie.org References: <20000331022130.A4045@isabase.philol.msu.ru> <20000331142357.A1291@home.net> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Mailer: Mutt 0.95.4i In-Reply-To: =?iso-8859-1?Q?=3C20000331142357=2EA1291=40home=2Enet=3E=3B_from_Thomas_?= =?iso-8859-1?Q?K=F6llmann_on_Fri=2C_Mar_31=2C_2000_at_02:23:57PM_+0200?= X-Phase-Of-Moon: The Moon is Waning Crescent (17% of Full) Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Fri, Mar 31, 2000 at 02:23:57PM +0200, Thomas Köllmann wrote: > > Please excuse if this was mentioned before (I did not follow this > thread very closely), but isn't _not_ using > > options ATA_ENABLE_ATAPI_DMA > > enough as a measure of precaution? > > This is from LINT: > > # ATA_ENABLE_ATAPI_DMA: enable DMA on ATAPI device, since many ATAPI > # devices claim to support DMA but doesn't actually work, this is > # not enabled as default. > Note there is a subtle distinction between ATAPI devices and ATA hard disks. The devices which that option disables DMA for are devices like CD-ROMs, IDE zip drives, etc. -- NOT normal IDE hard drives -- they use DMA with the new driver regardless of that setting. enjoy -- Jason Garman http://web.wedgie.org/ Student, University of Maryland jgarman@wedgie.org From fortune(1): Whois: JAG145 "... Had this been an actual emergency, we would have fled in terror, and you would not have been informed." To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message