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Message-ID: <Pine.LNX.4.44L0.0910191035260.3899-100000@iolanthe.rowland.org>
Date: Mon, 19 Oct 2009 10:39:33 -0400 (EDT)
From: Alan Stern <stern@...land.harvard.edu>
To: Felipe Contreras <felipe.contreras@...il.com>
cc: Sarah Sharp <sarah.a.sharp@...ux.intel.com>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
<linux-usb@...r.kernel.org>
Subject: Re: Annoying problems with lacie external hd (JMicron 0x2339?)
On Mon, 19 Oct 2009, Felipe Contreras wrote:
> On Thu, Oct 8, 2009 at 11:46 PM, Felipe Contreras
> <felipe.contreras@...il.com> wrote:
> > On Tue, Oct 6, 2009 at 11:10 PM, Alan Stern <stern@...land.harvard.edu> wrote:
> >> A usbmon trace would contain more information. Â We could see the exact
> >> sequence of commands and error codes. Â I'm not sure it would help solve
> >> anything, though.
> >
> > I followed the tutorial and the resulting log is 73M long. I don't
> > know what I'm looking for, so there it is:
> > http://people.freedesktop.org/~felipec/1.mon.out
>
> Can you take a look? Is there anything else I can provide?
Unforunately the usbmon trace isn't much help. It shows several
unrecovered read errors, but you already know that the disk has a bunch
of bad sectors.
Then near the end, for no apparent reason, it shows a failure right in
the middle of a READ command. The computer tried to read 128 sectors;
the drive sent back 48 sectors of data and then stopped responding.
Something in the firmware crashed; my guess is that the bridge chip
failed.
Alan Stern
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