On 06/08/2014 12:36 AM, Johannes Berg wrote:
> Just got the below when I plugged in a new webcam. Not sure it's a bug
> in xhci (using GFP_KERNEL presumably) or (less likely?) in the USB
> autosuspend code.
> 

Thanks, regression in XHCI
xhci_stop_device() tries to allocate memory with GFP_KERNEL flag during 
spin_lock_irqsave().

I'll send a patch for it right away

-Mathias
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