(switched to email.  Please respond via emailed reply-to-all, not via the
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On Mon, 3 Aug 2009 16:51:07 GMT
bugzilla-daemon@bugzilla.kernel.org wrote:

> http://bugzilla.kernel.org/show_bug.cgi?id=13902
> 
>            Summary: WD Elements___ USB HDD model WD7500E035-00 does not read
>            Product: Drivers
>            Version: 2.5
>     Kernel Version: 2.6.30
>           Platform: All
>         OS/Version: Linux
>               Tree: Mainline
>             Status: NEW
>           Severity: normal
>           Priority: P1
>          Component: USB
>         AssignedTo: greg@kroah.com
>         ReportedBy: mike@trausch.us
>         Regression: Yes
> 
> 
> Latest known working kernel version: 2.6.24

It's a regression.

> I have not been able to yet identify the exact first revision of the kernel
> that does not work with this external USB device; however, I do know that it
> does not work in 2.6.30, but does in 2.6.24.
> 
> The device is 0x1058:0x1001 (vendor/device ID).  When attempting to use the
> device on newer kernels, it mounts (but cannot be read), and outputs the
> following in dmesg:
> 
> 
> [459694.345048] usb 2-4: new high speed USB device using ehci_hcd and address
> 13
> [459694.479639] usb 2-4: configuration #1 chosen from 1 choice
> [459694.526451] scsi14 : SCSI emulation for USB Mass Storage devices
> [459694.527312] usb-storage: device found at 13
> [459694.527320] usb-storage: waiting for device to settle before scanning
> [459699.528272] usb-storage: device scan complete
> [459699.530215] scsi 14:0:0:0: Direct-Access     WD       7500AAC External
> 1.05
> PQ: 0 ANSI: 4
> [459699.531150] sd 14:0:0:0: Attached scsi generic sg8 type 0
> [459699.532304] sd 14:0:0:0: [sdh] 1465149168 512-byte logical blocks: (750
> GB/698 GiB)
> [459699.560087] sd 14:0:0:0: [sdh] Write Protect is off
> [459699.560101] sd 14:0:0:0: [sdh] Mode Sense: 21 00 00 00
> [459699.560106] sd 14:0:0:0: [sdh] Assuming drive cache: write through
> [459699.567165] sd 14:0:0:0: [sdh] Assuming drive cache: write through
> [459699.567178]  sdh: sdh1
> [459699.576055] sd 14:0:0:0: [sdh] Assuming drive cache: write through
> [459699.576068] sd 14:0:0:0: [sdh] Attached SCSI disk
> [459735.029962] sd 14:0:0:0: [sdh] Sense Key : No Sense [current] 
> [459735.029984] Info fld=0x0
> [459735.029988] sd 14:0:0:0: [sdh] Add. Sense: No additional sense
> information
> [459737.929096] sd 14:0:0:0: [sdh] Sense Key : No Sense [current] 
> [459737.929109] Info fld=0x0
> [459737.929111] sd 14:0:0:0: [sdh] Add. Sense: No additional sense
> information
> [459740.972427] sd 14:0:0:0: [sdh] Sense Key : No Sense [current] 
> [459740.972438] Info fld=0x0
> [459740.972441] sd 14:0:0:0: [sdh] Add. Sense: No additional sense
> information
> [459744.024170] sd 14:0:0:0: [sdh] Sense Key : No Sense [current] 
> [459744.024183] Info fld=0x0
> [459744.024185] sd 14:0:0:0: [sdh] Add. Sense: No additional sense
> information
> [459746.916916] sd 14:0:0:0: [sdh] Sense Key : No Sense [current] 
> [459746.916932] Info fld=0x0
> [459746.916951] sd 14:0:0:0: [sdh] Add. Sense: No additional sense
> information
> [459749.816662] sd 14:0:0:0: [sdh] Sense Key : No Sense [current] 
> [459749.816674] Info fld=0x0
> [459749.816676] sd 14:0:0:0: [sdh] Add. Sense: No additional sense
> information
> [459752.727480] sd 14:0:0:0: [sdh] Sense Key : No Sense [current] 
> [459752.727497] Info fld=0x0
> [459752.727502] sd 14:0:0:0: [sdh] Add. Sense: No additional sense
> information
> [459755.771148] sd 14:0:0:0: [sdh] Sense Key : No Sense [current] 
> [459755.771166] Info fld=0x0
> [459755.771170] sd 14:0:0:0: [sdh] Add. Sense: No additional sense
> information
> [459758.671890] sd 14:0:0:0: [sdh] Sense Key : No Sense [current] 
> [459758.671901] Info fld=0x0
> [459758.671903] sd 14:0:0:0: [sdh] Add. Sense: No additional sense
> information
> [459761.719625] sd 14:0:0:0: [sdh] Sense Key : No Sense [current] 
> [459761.719641] Info fld=0x0
> [459761.719645] sd 14:0:0:0: [sdh] Add. Sense: No additional sense
> information
> [459764.759359] sd 14:0:0:0: [sdh] Sense Key : No Sense [current] 
> [459764.759376] Info fld=0x0
> [459764.759380] sd 14:0:0:0: [sdh] Add. Sense: No additional sense
> information
>

On Tue, 4 Aug 2009, Andrew Morton wrote:

> > http://bugzilla.kernel.org/show_bug.cgi?id=13902
> > 
> >            Summary: WD Elements___ USB HDD model WD7500E035-00 does not
> read

> > The device is 0x1058:0x1001 (vendor/device ID).  When attempting to use the
> > device on newer kernels, it mounts (but cannot be read), and outputs the
> > following in dmesg:

> > [459699.567165] sd 14:0:0:0: [sdh] Assuming drive cache: write through
> > [459699.567178]  sdh: sdh1
> > [459699.576055] sd 14:0:0:0: [sdh] Assuming drive cache: write through
> > [459699.576068] sd 14:0:0:0: [sdh] Attached SCSI disk
> > [459735.029962] sd 14:0:0:0: [sdh] Sense Key : No Sense [current] 
> > [459735.029984] Info fld=0x0
> > [459735.029988] sd 14:0:0:0: [sdh] Add. Sense: No additional sense
> information

Please post a usbmon trace showing what happens when the drive is
plugged in, under 2.6.30.  (See Documentation/usb/usbmon.txt for
instructions on usbmon.)

Alan Stern

See the attachment for <http://bugzilla.kernel.org/show_bug.cgi?id=14118#c9>.  It contains a which which should help fix this problem.

I believe this problem has been fixed in the 2.6.31.5 kernel.  Please let us know if the drive works okay.

I will give it a try as soon as possible.  I haven't been able to do the usbmon thing yet for a myriad of reasons, and I'm sorry I haven't been able to provide anymore feedback yet.  I'll have access to the drive this evening, so I will let you know what happens.

All USB bugs should be sent to the linux-usb@vger.kernel.org mailing 
list, and not entered into bugzilla.  Please bring this issue up there,
if it is still a problem in the latest kernel release.