Mailinglist Archive: opensuse-kernel (68 mails)

[Bruno Friedmann <bruno@xxxxxxxxxxx>]

On 07/23/2010 02:43 PM, Greg KH wrote:
> On Fri, Jul 23, 2010 at 02:30:56PM +0200, Bruno Friedmann wrote:
> > On 07/23/2010 02:25 PM, Greg KH wrote:
> > > On Fri, Jul 23, 2010 at 02:11:38PM +0200, Bruno Friedmann wrote:
> > > > Hi all, I'm now using a new device usb3 ready.
> > > >
> > > > But hot-pluging it drive you nowhere
> > > > dmesg full of
> > > > xhci_hcd 0000:04:00.0: WARN: Stalled endpoint
> > >
> > > Does the device still work properly, even with that message?
> > >
> > > thanks,
> > >
> > > greg k-h
> >
> > Not everything on the device stall and it's just loose.
>
> What do you mean by that?

The fdisk command never finish it's write, it's now a zombie !
We remove the disk & peripheral from the computer now.

> > First plug I was thinking it's works so I fired fdisk and build a partition.
> > Using w to write on it, are now running, even if I disconnect the device 
> > after having constant
> >
> > [706143.616465] xhci_hcd 0000:04:00.0: WARN: Stalled endpoint
> > [706143.624523] xhci_hcd 0000:04:00.0: WARN: Stalled endpoint
> > [706143.632588] xhci_hcd 0000:04:00.0: WARN: Stalled endpoint
> > [706143.640660] xhci_hcd 0000:04:00.0: WARN: Stalled endpoint
> > [706143.649079] xhci_hcd 0000:04:00.0: WARN: Stalled endpoint
>
> So it works properly?
Absolutely not
> Is this a USB 3.0 storage device only?  If so, we don't have a Linux
> driver for it (no operating system does), so it might not work to its
> full capabilities yet.

Yes the test was made with a pure usb3 docking station & usb3 connector
The docking station
http://www.raidsonic.de/en/products/external-cases.php?we_objectID=6834


> USB 3 is still under heavy development.  The basics are there, but the
> full speed improvement is still being worked on (see the changes in the
> linux-next tree for examples of major speedups and lots of bug fixes.)

So we can conclude that detection work, device appear, but nothing can be read 
nor write to it.
Rendering the usb3 device a bit useless :-)

> If you drop back to USB 2.0 controller speeds, does the device run
> properly?

We need to wait to do this until all data are safely put on the server.
But I will try this on the next days, and forward you the result.
> thanks,
>
> greg k-h

Many thanks for your quick intervention.

Happy patching ...


-- 

Bruno Friedmann  bruno@xxxxxxxxxxx

Ioda-Net Sàrl www.ioda-net.ch

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