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Date:      Thu, 8 Jan 2004 13:31:41 +0100
From:      "Simon L. Nielsen" <simon@FreeBSD.org>
To:        "david@groovelicious.org" <david@groovelicious.org>
Cc:        freebsd-hardware@freebsd.org
Subject:   Re: SiS 651 success wth FreeBSD 4.9 and PR-43345
Message-ID:  <20040108123140.GB691@arthur.nitro.dk>
In-Reply-To: <57050-220041480242298@M2W052.mail2web.com>
References:  <57050-220041480242298@M2W052.mail2web.com>

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On 2004.01.07 19:24:22 -0500, david@groovelicious.org wrote:
> I recently bought a Shuttle SS51G XPC to re-house my server. I was able to
> boot FreeBSD 4.9-RELEASE by turning off UDMA support in the BIOS. I then
> applied PR-43345 and re-enabled UDMA support and it worked.
> Upon adding a second drive (slave) to the primary IDE interface, I saw
> these messages (from dmesg):
>=20
> ad0: 76345MB <MAXTOR 6L080J4> [155114/16/63] at ata0-master UDMA100
> ad1: 152627MB <WDC WD1600JB-00FUA0> [310101/16/63] at ata0-slave UDMA100
> Mounting root from ufs:/dev/ad0s1a
> ad0s1h: UDMA ICRC error writing fsbn 105786783 of 5696-5703 (ad0s1 bn
> 105786783; cn 6584 tn 235 sn 18) retrying

These are very often caused by a bad IDE cable, so I would try to
replace the cable.

> ad0s1h: UDMA ICRC error writing fsbn 105786783 of 5696-5703 (ad0s1 bn
> 105786783; cn 6584 tn 235 sn 18) falling back to PIO mode
>=20
> The system seems to work fine, although I'm contemplating putting the

At one point I have had a system running for about half a year which got
these errors, but the system worked flawlesly...

> second drive on the secondary IDE interface to see if this makes a
> difference. I didn't notice this behaviour with a single IDE drive.

Of course it shouldn't be needed, but I would also try to switch to the
other channel, and if it works it's probably not wort wasting to much
more time on.

--=20
Simon L. Nielsen
FreeBSD Documentation Team

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