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Date:      Sun, 5 Aug 2001 06:33:13 -0400 (EDT)
From:      Erik Rothwell <erothwell@callgtn.com>
To:        Thierry Herbelot <thierry@herbelot.com>
Cc:        Erik Rothwell <erothwell@callgtn.com>, <questions@FreeBSD.ORG>
Subject:   Re: ad2s1e: UDMA ICRC error reading fsbn...
Message-ID:  <20010805062914.R941-100000@endymion>
In-Reply-To: <3B6D16B5.43FEA60C@herbelot.com>

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On Sun, 5 Aug 2001, Thierry Herbelot wrote:

> [this rather belongs to -questions : CC modified]
>
> your error messages are most likely due a mis-adaptation between your
> cable (all the more so if you have a bent pin on one of connectors), the
> capabilities of your chipset (is it a Via ....) and a perhaps buggy IDE
> disk (for example, IBM IDE disk drives of the GX60 family are buggy)

I posted to -STABLE mostly because I'd heard of someone else having
similar problems since an upgrade to 4.3-stable (which I had done a little
while ago as well...) :)

But, strangely, the problems disappeared when rebooted... at least I have
not encountered them yet again... I'm going to play with it a bit more to
see if I can make it reproduce those errors.

>
> PS : you may want to post also your dmesg file
> PS2 : it is possible to downgrade the access speed of the IDE hard disk
> via the hw.atamodes sysctl in the /boot/loader.conf file (here is my
> config : dma,---,dma,---,dma,---,---,---, you can replace the keyword
> "dma" with "pio")

I was thinking of reducing the access speed too, but, it seems a moot
point now.

Thank you for the help, though. I'll post more if I can reproduce the
error.

Erik.


> Erik Rothwell wrote:
> >
> > Hello,
> >
> > 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 at first suspected the cables-- because I accidentally damaged one of
> > the pins on my old 20GB drive... so, when I got the error at first (by
> > copying a 750MB file from the old drive to the new) I figured it was an
> > error in the old drive... so, I tried doing a copy of the same file (now
> > on /data) to elsewhere also on /data... still, the same errors
> > reading/writing from/to the same disk...
> >
> > Any ideas?
> >
> > Thanks in advance...
> >
> > Erik.
> >
> >
> --
> Thierry Herbelot
>
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>

--
E. L. Rothwell

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