linux-kernel - Re: Problem mounting Motorola USB device

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Message-Id: <1217096347.5892.1.camel@rotwang>
Date:	Sat, 26 Jul 2008 11:19:07 -0700
From:	Alan <alan@...eserver.org>
To:	Pete Zaitcev <zaitcev@...hat.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: Problem mounting Motorola USB device

On Sat, 2008-07-26 at 11:22 -0600, Pete Zaitcev wrote:
> 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.

This actually causes a kernel oops.  I will post debug info soon.

> 
> > > 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.

I will get more info now that OSCON is over.

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