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Date:      Fri, 24 Nov 2000 09:24:38 -0500
From:      Craig Huckabee <huck@nosc.mil>
To:        "Aistis Zenkevicius" <noc@unix.lt>, <freebsd-questions@FreeBSD.ORG>
Subject:   Re: UDMA ICRC READ ERRORs
Message-ID:  <4.3.2.7.2.20001124091604.00ad7d60@localhost>
In-Reply-To: <001001c0556d$e0326850$9b00a8c0@admin>
References:  <20001123163615.22055.qmail@web108.yahoomail.com>

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At 05:53 PM 11/23/00 +0100, Aistis Zenkevicius wrote:
>hi all,
>
> > > I've got the same problem with 4.2-BETA and an AMD
> > > K6/2 500Mhz box, built
> > > with an ASUS P5A, and a Western Digital hard drive.
> > > I searched the mailing
> > > list archives and found this fix :
> > >
> > > /sbin/sysctl -w hw.atamodes=pio,pio,pio,pio
>
>don't want to get onto someones nerves, but is it a "solution" ???

It is a work around for what appears to be a problem with a particular 
combination of specific brands or models of hard drives and specific brands 
of ATAPI controllers.  It is not a solution.  Possible solutions would be 
(IMHO) to fix the ata driver so that it works with this combination (if 
possible), or augment the driver so it recognizes this type of problem and 
backs off to pio mode on its own, or compile a list of broken hardware, add 
that list to a FAQ, and have the millions of users to complain to the 
manufacturers to fix their hardware (I am assuming it is fixable).

>where's the normal support for udma-66 ?

udma works fine with other combinations of hardware - as I stated in my 
reply I have two systems now running 4.2 (using different hard drives) that 
are working just fine.

--Craig

-------------------------------------------------------
Craig Huckabee                          huck@spawar.navy.mil
Systems Engineer, Compliance Corporation        (843) 218 6459
SPAWAR Systems Center - Charleston, Charleston, SC



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