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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Anton Lavrentiev <anton_lavrentiev@yahoo.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Strange I/O errors for hard-disk driver with bad sectors
Date: Wed, 17 Nov 2004 15:42:40 +0000	[thread overview]
Message-ID: <1100706158.419.44.camel@localhost.localdomain> (raw)
In-Reply-To: <20041116162230.74768.qmail@web52302.mail.yahoo.com>

On Maw, 2004-11-16 at 16:22, Anton Lavrentiev wrote:
> Or, there are indeed few bad sectors in a row that kernel
> reports by using sector number of the first one, which it
> couldn't read?
> 
> I also used dd to skip to the sectors that it reported as
> unreadable, and read them one by one -- no success, but the
> kernel keeps reporting the same "magic" sector number for
> all these attempts:

Disk sectors in software and disk sectors in the magic internal world of
the disk are not neccessarily the same size so don't be suprised to lose
a bunch.

If you want to read exact sectors without readahead and other
complications
use O_DIRECT I/O


      reply	other threads:[~2004-11-17 16:52 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-11-16 16:22 Strange I/O errors for hard-disk driver with bad sectors Anton Lavrentiev
2004-11-17 15:42 ` Alan Cox [this message]

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