Re: Getting spammed by "hub 2-1:1.0: unable to enumerate USB device on port 6"

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On Fri, 24 Jun 2011, Francis Turkey wrote:

> Hi people,
> 
> suddenly out of the blue [1] I started getting these messages in the kernel log:
> hub 2-1:1.0: unable to enumerate USB device on port 6
> 
> They seem harmless but they still skyrocket my system load to 1.6 from 0.1.
> I tried every solution I could find on wacky forums on the internet, but none worked,
> except of course from rmmoding ehci_hcd (although, I heavily rely on USB).
> 
> I patched my kernel to remove that message, but the load still goes to 1.6
> when ehci_hcd is loaded, which makes me believe that something is not going
> really well.
> 
> I pasted my 'lsusb -v' to pastebin.com so as to not flood this threat:
> http://pastebin.com/q6mQghBp
> 
> Please, any help would be really appreciated.
> Thank you!

Can you post a usbmon trace for bus 2 showing this activity?  
Instructions are in Documentation/usb/usbmon.txt.

Alan Stern

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