Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 2 Jan 2003 22:39:11 +0100
From:      Francesco Casadei <fcasadei@inwind.it>
To:        Bruce Campbell <bruce@engmail.uwaterloo.ca>
Cc:        freebsd-hardware@freebsd.org, freebsd-questions@freebsd.org
Subject:   Re: ata "fallback to PIO mode" on dual processor AMD systems
Message-ID:  <20030102213911.GA13458@goku.kasby>
In-Reply-To: <1041532923.3e1487fb50a0e@www.nexusmail.uwaterloo.ca>
References:  <1041368236.3e1204ac45da5@www.nexusmail.uwaterloo.ca> <20030102163812.GA2350@goku.kasby> <1041532923.3e1487fb50a0e@www.nexusmail.uwaterloo.ca>

next in thread | previous in thread | raw e-mail | index | archive | help

--azLHFNyN32YCQGCU
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On Thu, Jan 02, 2003 at 01:42:03PM -0500, Bruce Campbell wrote:
>=20
[snip]
> I don't have it enabled:
>=20
>   hw.ata.tags: 0
>=20
> I've manually set:
>=20
>   atacontrol mode 0 UDMA33 UDMA33
>=20
> and the problem has not recurred.
>=20
> --=20
> Bruce Campbell
> Engineering Computing
> CPH-2374B
> University of Waterloo
> (519)888-4567 ext 5889
>=20
> ----------------------------------------
> This mail sent through www.mywaterloo.ca
>=20
> To Unsubscribe: send mail to majordomo@FreeBSD.org
> with "unsubscribe freebsd-questions" in the body of the message
>=20
> end of the original message

# atacontrol mode 3
Master =3D PIO4=20
Slave  =3D ???

# atacontrol mode 3 udma33 xxx
Master =3D UDMA33=20
Slave  =3D ???

# atacontrol mode 3
Master =3D UDMA33=20
Slave  =3D ???

# find / -name nonexistent -print

# atacontrol mode 3
Master =3D PIO4=20
Slave  =3D ???


After little disk activity, like searching a file throughout the entire
filesystem, the second disk of the RAID array falls back to PIO4 mode.

I booted the system from the live system cd (2nd disk of the freebsd
distribution set) then ran dd to read from and write to ad6: no errors were
found.

	Francesco Casadei
--=20
You can download my public key from http://digilander.libero.it/fcasadei/
or retrieve it from a keyserver (pgpkeys.mit.edu, wwwkeys.pgp.net, ...)

Key fingerprint is: 1671 9A23 ACB4 520A E7EE  00B0 7EC3 375F 164E B17B


--azLHFNyN32YCQGCU
Content-Type: application/pgp-signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.6 (FreeBSD)
Comment: For info see http://www.gnupg.org

iD8DBQE+FLF+fsM3XxZOsXsRAveBAJ9ZG5yIZDlVBs2F8UslyyT8rzYtmACfdYHK
KrLDpkI+OejwC8Cb3E3Nuu0=
=v0C8
-----END PGP SIGNATURE-----

--azLHFNyN32YCQGCU--

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hardware" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20030102213911.GA13458>