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Date:      Thu, 14 Feb 2002 15:16:32 -0600
From:      Dan Nelson <dnelson@allantgroup.com>
To:        Blake Freeburg <blakef@votris.mrdata.com>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: Sigs of a disk going?
Message-ID:  <20020214211632.GA89291@dan.emsphone.com>
In-Reply-To: <200202142110.g1ELAqHG000951@votris.mrdata.com>
References:  <200202142110.g1ELAqHG000951@votris.mrdata.com>

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In the last episode (Feb 14), Blake Freeburg said:
> Hello all,
> 
>   Running a FreeBSD-Stable with sound and brooktree support, I see these errors becoming more common:
> 
> Feb 14 13:47:57 davros /kernel: ad2c: hard error reading fsbn 16661247 of 8330592-8330597 (ad2 bn 16661247; cn 16529 tn 0 sn 15) status=51 error=04
> Feb 14 13:48:01 davros su: blakef to root on /dev/ttyp0
> Feb 14 13:48:05 davros /kernel: ad2: timeout waiting for DRQ - resetting
> Feb 14 13:48:05 davros /kernel: ata1: resetting devices .. done
> Feb 14 13:51:16 davros /kernel: ad3: UDMA ICRC error reading fsbn 0 (ad3 bn 0; cn 0 tn 0 sn 0) retrying
> Feb 14 14:04:23 davros /kernel: ad3: UDMA ICRC error reading fsbn 0 (ad3 bn 0; cn 0 tn 0 sn 0) retrying
> Feb 14 14:04:55 davros /kernel: ad3c: UDMA ICRC error writing fsbn 191 of 64-79 (ad3 bn 191; cn 0 tn 3 sn 2) retrying
> Feb 14 14:04:55 davros last message repeated 2 times
> Feb 14 14:04:55 davros /kernel: ad3c: UDMA ICRC error writing fsbn 191 of 64-79 (ad3 bn 191; cn 0 tn 3 sn 2) falling back to PIO mode
> Feb 14 14:12:46 davros /kernel: dc0: TX underrun -- increasing TX threshold

I believe ICRCs are interface errors, not medium errors.  Try reseating
all the plugs on the IDE cable that drive is attached to.

-- 
	Dan Nelson
	dnelson@allantgroup.com

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