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Date:      Sun, 5 Aug 2001 10:55:47 -0500
From:      Dave Uhring <duhring@charter.net>
To:        Jonathan Smith <jonsmith@dragonstar.dhs.org>, Carl Drougge <freebsd-stable@z42.net>
Cc:        Erik Rothwell <erothwell@callgtn.com>, stable@FreeBSD.ORG
Subject:   Re: ad2s1e: UDMA ICRC error reading fsbn...
Message-ID:  <01080510554700.13792@dave>
In-Reply-To: <Pine.BSF.4.21.0108051043370.29112-100000@dragonstar.dhs.org>
References:  <Pine.BSF.4.21.0108051043370.29112-100000@dragonstar.dhs.org>

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On Sunday 05 August 2001 10:46, Jonathan Smith wrote:
> I just noticed something.... really odd....
>
> > > ad2s1e: UDMA ICRC error reading fsbn 400447 of 200192-200447
> > > (ad2s1
>
>                                          ^^^^^^    ^^^^^^^^^^^^^
>
> > > bn 400447; cn 397 tn 4 sn 19) retrying
>
> Is this an error in the error?  Or is it really trying to red out of
> range?
>
> j.
>
> --
> There is perhaps nothing quite as distressing as the unintended
> consequences of well-intentioned government.
> 	-- Attorney General John Ashcroft
>
> 	Jon Smith
>
> On Sun, 5 Aug 2001, Carl Drougge wrote:
> > Date: Sun, 5 Aug 2001 17:40:13 +0200
> > From: Carl Drougge <freebsd-stable@z42.net>
> > To: Erik Rothwell <erothwell@callgtn.com>
> > Cc: stable@FreeBSD.ORG
> > Subject: Re: ad2s1e: UDMA ICRC error reading fsbn...
> >
> > On Sun, Aug 05, 2001 at 03:24:25AM -0400, Erik Rothwell wrote:
> > > I've recently added a new 40GB disk to my existing FreeBSD
> > > system... It's been less than flawless ;) When I first went to
> > > fdisk / disklabel the new drive, I got an error stating that the
> > > drive geometry was improper... I let /stand/sysinstall pick its
> > > own more suitable geometry and proceeded to newfs the drive, etc.
> > > etc. Everything seems all well and good-- the new drive mounted
> > > to /data... however, when I did a few tests moving data to the
> > > new drive I get a *lot* of the following:
> > >
> > > ad2s1e: UDMA ICRC error reading fsbn 400447 of 200192-200447
> > > (ad2s1 bn 400447; cn 397 tn 4 sn 19) retrying
> >
> > [snip]
> >
> > > and so on...
> > >
> > > the file eventually transfers but its quite noisy... now, I'm
> > > wondering if this is due to kernel settings or my UDMA
> > > configuration-- or perhaps due to some hardware problem.
> >
> > I would say the cable. Or using UDMA66/UDMA100 on a 40 pin cable.
> > (ICRC should be the CRC of the tranfer, if I guess correctly, which
> > means the disk transfered the data correctly, but it didn't reach
> > the controller correctly. Try forcing it to use a slower mode (not
> > that I know how..).)
> >

The sector is within the range - at the very end of it.  I had similar 
problems with an IBM-DTLA-305040 and sent it back to the dealer for 
replacement.  The replacement drive did not give those errors.

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