Re: [reiserfs-dev] Re: IDE problem: linux-2.5.17

[Vojtech Pavlik]

On Fri, May 24, 2002 at 02:23:51AM +0200, Lionel Bouton wrote:
> On Fri, May 24, 2002 at 12:55:25AM +0200, Vojtech Pavlik wrote:
> > 
> > If you rewrite the whole drive with zeros (or the original data) sector
> > by sector, the uncorrectable errors will go away. I've done this to my
> > 307030 and it works fine again. (Fortunately for me the errors were only
> > in my swap partition).
> > 
> 
> Don't know for the whole drive yet (currently running) but when I did a mkraid
> on a raid5 array using 4 partitions on the same drive the sync thread ended
> and left the array in degraded mode after a bunch of :
> May 24 02:05:06 twins kernel: hdd: dma_intr: status=0x51 { DriveReady SeekComplete Error }
> May 24 02:05:06 twins kernel: hdd: dma_intr: error=0x40 { UncorrectableError }, LBA sect=2097375, sector=2097298
> May 24 02:05:06 twins kernel: end_request: I/O error, dev 16:41 (hdd), sector 2097298
> 
> Then I tried to zero the offending sectors with a slight margin :
> [root@twins root]# dd if=/dev/zero of=/dev/hdd1 count=200 bs=512 seek=2097200
> dd: writing /dev/hdd1': Erreur d'entrée/sortie
> 113+0 enregistrements lus.
> 112+0 enregistrements écrits.
> 
> Same error each time, seems sector 2097312 is not my friend.
> 
> dd if=/dev/zero of=/dev/hdd bs=<cylinder_size> running.
> 
> Too bad lsof doesn't show offsets...
> I can't tell if dd passed the offending sector :-|

Well, if writing failed, it means the drive has ran out of relocatable
sectors. That's too bad ... best to send it in for replacement.

-- 
Vojtech Pavlik
SuSE Labs