On Fri, Jan 18, 2002 at 08:50:14PM +0100, Eric Jacoboni wrote:
> I'm running -current, on a i386.
> 
> Since some days, i've noticed following messages (output from
> 'dmesg'):
> 
> /-----------------
> | wd1a: uncorrectable data error reading fsbn 997616 of 997616-997743
> | (wd1 bn 997679; cn 989 tn 12 sn 11), retrying 
> | wd1a: uncorrectable data error reading fsbn 997616 of 997616-997743
> | (wd1 bn 997679; cn 989 tn 12 sn 11), retrying 
> | wd1a: uncorrectable data error reading fsbn 997616 of 997616-997743
> | (wd1 bn 997679; cn 989 tn 12 sn 11), retrying 
> | wd1: transfer error, downgrading to Ultra-DMA mode 2
> | wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 5 (Ultra/100)
> | (using DMA data transfers) 
> | wd1(pciide0:0:1): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33) (using
> | DMA data transfers) 
> | wd1a: uncorrectable data error reading fsbn 997616 of 997616-997743
> | (wd1 bn 997679; cn 989 tn 12 sn 11), retrying 
> | wd1a: uncorrectable data error reading fsbn 997655 of 997616-997743
> | (wd1 bn 997718; cn 989 tn 12 sn 50), retrying 
> | wd1a: uncorrectable data error reading fsbn 997655 of 997616-997743
> | (wd1 bn 997718; cn 989 tn 12 sn 50) 
> | wd1: transfer error, downgrading to Ultra-DMA mode 1
> | wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 5 (Ultra/100)
> | (using DMA data transfers) 
> | wd1(pciide0:0:1): using PIO mode 4
> | wd1a: uncorrectable data error reading fsbn 997648 of 997648-997663
> | (wd1 bn 997711; cn 989 tn 12 sn 43), retrying 
> | wd1a: uncorrectable data error reading fsbn 997648 of 997648-997663
> | (wd1 bn 997711; cn 989 tn 12 sn 43), retrying 
> | wd1a: uncorrectable data error reading fsbn 997655 of 997648-997663
> | (wd1 bn 997718; cn 989 tn 12 sn 50), retrying 
> | wd1a: uncorrectable data error reading fsbn 997655 of 997648-997663
> | (wd1 bn 997718; cn 989 tn 12 sn 50) 
> | wd1a: uncorrectable data error reading fsbn 997648 of 997648-997663
> | (wd1 bn 997711; cn 989 tn 12 sn 43), retrying 
> | wd1a: uncorrectable data error reading fsbn 997648 of 997648-997663
> | (wd1 bn 997711; cn 989 tn 12 sn 43), retrying 
> \-----------------
> 
> As you may notice, they're always on wd1a, on the same location (i'm
> afraid i'm not sure of what fsbn/bn/cn/tn/sn mean). Any advices one
> the possible reasons of such messages ?

I can see only one: your disk is dying.

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
--