Date: Mon, 8 Sep 2003 13:57:50 +0200 From: Simon Barner <barner@in.tum.de> To: Jonas <jonas@netwood.net> Cc: freebsd-hardware@freebsd.org Subject: Re: RE: IBM 120 G IDE -- problems Message-ID: <20030908115750.GA1419@zi025.glhnet.mhn.de> In-Reply-To: <003301c375bc$6465a3f0$0800a8c0@master> References: <20030908033533.GB47926@freebsd1.cimlogic.com.au> <003301c375bc$6465a3f0$0800a8c0@master>
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--h31gzZEtNLTqOjlF Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable [ top posting corrected ] > > I have that problem with an ASUS P4S533 motherboard. I add=20 > > these sysctl > > values to /boot/loader.conf: > >=20 > > hw.ata.ata_dma=3D"0" > > hw.ata.atapi_dma=3D"0" > OH MAN...... You don't know how many hours you just saved me!!! It boots > up beautifully with 3 drives. >=20 > Thank you!!!! >=20 > For future reference, do you know why this happens? Because some chip set / drive combinations don't work in DMA mode (don't know why). You can list the modes your drives are currently using with the following command (as root): atacontrol mode 0 (1st channel) atacontrol mode 1 (2nd -"- ) For performance reasons you can try whether disabling DMA mode for your ATAPI devices is enough, i.e. your /boot/loader.conf should look like this: hw.ata.atapi_dma=3D"0" Regards, Simon --h31gzZEtNLTqOjlF Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (FreeBSD) iD8DBQE/XG6+Ckn+/eutqCoRAplCAJ9ggob9nk6WRXqG5m2HmZZEIc/e8ACg3POQ hRzb4Jj8BnxjTNJFW/7TZxQ= =EK2r -----END PGP SIGNATURE----- --h31gzZEtNLTqOjlF--
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