linux-kernel - Re: usb-storage, error reading the last 8 sectors, regression in 2.6.25-rc7

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Message-ID: <20080401143420.GB20920@one-eyed-alien.net>
Date:	Tue, 1 Apr 2008 07:34:20 -0700
From:	Matthew Dharm <mdharm-kernel@...-eyed-alien.net>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	Oliver Neukum <oliver@...kum.org>,
	Sergey Dolgov <solkaa@...il.com>, linux-kernel@...r.kernel.org,
	linux-usb@...r.kernel.org
Subject: Re: usb-storage, error reading the last 8 sectors, regression in 2.6.25-rc7

On Tue, Apr 01, 2008 at 10:28:52AM -0400, Alan Stern wrote:
> On Tue, 1 Apr 2008, Oliver Neukum wrote:
> 
> > Am Dienstag, 1. April 2008 03:58:31 schrieb Alan Stern:
> > > Nevertheless, it's clear that the problem has nothing to do with the 
> > > USB stack.  The real source of the problem lies in the device itself, 
> > > for reporting a bogus error when in fact nothing went wrong.  That may 
> > > also explain why you don't always see the problem -- sometimes the 
> > > device works the way it ought to.
> > 
> > Reminds me of the devices that can read the last sector but only if it is read
> > by itself. Do you reckon this device may have the "opposite" quirk?
> 
> Could be something like that.

Didn't I see some SCSI patches go by to implement exactly this change?
That is, only read the last sector by itself?

Matt

-- 
Matthew Dharm                              Home: mdharm-usb@...-eyed-alien.net 
Maintainer, Linux USB Mass Storage Driver

We can customize our colonels.
					-- Tux
User Friendly, 12/1/1998

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