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From: "Russell Foster" <rf@rf0.com>
To: "Eric Lam" <ecrim@earthlink.net>, <freebsd-questions@FreeBSD.ORG>
Subject: RE: 
Date: Tue, 14 Aug 2001 20:42:23 +0100
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>  -----Original Message-----
>  From: owner-freebsd-questions@FreeBSD.ORG
>  [mailto:owner-freebsd-questions@FreeBSD.ORG]On Behalf Of Eric Lam
>  Sent: 14 August 2001 11:53
>  To: freebsd-questions@FreeBSD.ORG
>  Subject:
>
>
>  Hello all.  I'm having a strange error message regarding the use of a
>  Promise ATA66 controller and a 20GB IBM UDMA66 Hard Drive.  I've
>  included my
>  dmesg with this email.  Anyways, this Hard Drive works perfectly
>  as far as I
>  know, but during startup, I get this...
>
>  ad4: READ command timeout tag=0 serv=0 - resetting
>  ata2: resetting devices .. done
>  ad4: READ command timeout tag=0 serv=0 - resetting
>  ad4: trying fallback to PIO mode
>  ata2: resetting devices .. done
>

<snip>

I've got a similar setup and saw something similar on 4.2 under heavy disk
i/o (coping over mp3's as it happenes) I'm in the middle of upgrading to 4.3
to see if that will fix it and I will let you know how I get on. Might be
worth updating the kernel source and compiling you own kernel as well...

Rus


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