Re: [Bugme-new] [Bug 13335] New: USB portable hdd taking 10 - more than 30 minutes to detect

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On Wed, 27 May 2009, Andrew Morton wrote:

> (switched to email.  Please respond via emailed reply-to-all, not via the
> bugzilla web interface).
> 
> On Mon, 18 May 2009 08:37:42 GMT bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote:
> 
> > http://bugzilla.kernel.org/show_bug.cgi?id=13335
> > 
> >            Summary: USB portable hdd taking 10 - more than 30 minutes to
> >                     detect

> > In the mean time I am seeing these in /var/log/syslog
> > 
> > May 18 13:55:53 grainlead-lx kernel: [  416.713368] hub 2-0:1.0: unable to
> > enumerate USB device on port 5
> > May 18 13:55:53 grainlead-lx kernel: [  416.900361] hub 2-0:1.0: unable to
> > enumerate USB device on port 5

(Two of those are enough to get the idea across.  Including 100 of them
doesn't really add much new information...)

> > I am using a docking station with my laptop compaq 6910p, when using docking
> > station it gets detected with uhci_hcd, so getting on USB 1.1 speed. When not
> > using docking station it gets detected with ehci_hcd .

Does this mean the drive works okay with EHCI when the laptop isn't
docked but fails over to UHCI when it is docked?

> > This is an apollo imation portable drive which used to work fine before 2.6.28
> > kernel. 

You mean it used to work with EHCI even when the laptop was docked?

> > This is the case with 2.6.28 and 29 kernel with 2.6.30-rc5 Its not mounting at
> > all. It just keeps printing 
> > 
> > hub 2-0:1.0: unable to enumerate USB device on port
> > 
> > It could also be a device problem. I am dual booting with windows, when
> > connecting under windows, though it mounts immediately its mounting as usb 1.1
> > with a message connect to a high speed device

Have you tried going back to a pre-2.6.28 kernel to see if it still 
works?  Maybe something in the docking station broke when you upgraded.

Alan Stern


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