linux-kernel - Re: Problems with reading DVD using 2.6.21.5

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Message-ID: <20070729213714.1d08abac@the-village.bc.nu>
Date:	Sun, 29 Jul 2007 21:37:14 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Manuel Reimer <Manuel.Spam@...fuerspam.de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Problems with reading DVD using 2.6.21.5

> As remounting fixes the problem, I think it doesn't have to do anything 
> with the IDE driver, right? The device node should always be connected 
> with the physical device, even if unmount. So the "problem" seems to be 

The IDE driver handles retries, although for IDE the drive itself also
handles them too by default.

> So the question is: What exactly will this "ISO 9660 driver" do, if 
> there is a read error? Will it mark this "failed byte" as "unreadable" 
> and will never try again, or will it try again for at least one ore more 
> times?

It knows nothing about retry - that happens lower down.

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