On Tue, 25 Sep 2012, Pratyush Anand wrote:

> Hi ,
> 
> I use 3.5.3-1.fc17 kernel on my host test PC. I use dwc3 in Super speed 
> mode as usb device, however the issue which I see is not related to usb 
> device.
> I have observed that testusb (test13, EP halt test) never passes in 
> Supper Speed mode. When simple_io is called second time from 
> verify_halted (ie with label verify_still_halted), wait_for_completion 
> never completes. I need to reboot PC to get xhci port working again.
> 
> Also on the bus I do not see that host is sending second IN token after 
> Get Status (See snapshot). So, it is clear that xhci driver is stuck 
> some where.

The snapshot also shows that the device returned a STALL in the bulk
transfer when verify_not_halted() called simple_io().  Why didn't the
test fail at that point?

Alan Stern

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