linux-kernel - Re: Problem mounting Motorola USB device

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Date:	Sat, 26 Jul 2008 11:22:49 -0600
From:	Pete Zaitcev <zaitcev@...hat.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	"Alan" <alan@...eserver.org>, linux-kernel@...r.kernel.org,
	linux-usb@...r.kernel.org
Subject: Re: Problem mounting Motorola USB device

On Fri, 25 Jul 2008 23:51:22 -0700, Andrew Morton <akpm@...ux-foundation.org> wrote:

> (cc linux-usb-devel)
> 
> On Wed, 16 Jul 2008 10:32:31 -0700 (PDT) "Alan" <alan@...eserver.org> wrote:

> > [...] The device gives an odd media error at towards
> > the end of the device.  It gave that before, but would still mount.

Weird. Actually, I would rather blame the partitioning code than
the usb-storage as such.

> > [...] I know I probably need a new memory card.  I
> > would like to recover this one first.

Want a practical suggestion? Try to stick the card into a common
many-in-one reader, a SanDisk SDDR-somenumber would usually work.
Save the data.

> > sd 6:0:0:0: Attached scsi generic sg2 type 0
> > sd 6:0:0:0: [sdb] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
> > sd 6:0:0:0: [sdb] Sense Key : Medium Error [current]
> > sd 6:0:0:0: [sdb] Add. Sense: No additional sense information

Well, duh.

BTW Andrew added:

> It's a 2.6.24 -> 2.6.25 regression.

Maybe in FAT... See the sector number (1987576).

BTW, all Fedora kernels have usbmon enabled. May I see the trace?
Best of all, take the one from the working 2.6.24 (if such install
is still available). It would become obvious if usb-storage began to
do something different.

Obligatory notice: I don't think ub would fix this.

-- Pete
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