linux-kernel - Re: [PATCH] usb: gadget: f_fs: Fix kernel panic for SuperSpeed

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Message-ID: <87pot5gept.fsf@intel.com>
Date:	Mon, 02 May 2016 09:23:58 +0300
From:	Felipe Balbi <balbi@...nel.org>
To:	Mathias Nyman <mathias.nyman@...ux.intel.com>,
	Jim Lin <jilin@...dia.com>
Cc:	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] usb: gadget: f_fs: Fix kernel panic for SuperSpeed


Hi,

Mathias Nyman <mathias.nyman@...ux.intel.com> writes:
>>> dmesg from PC host side (after adding your change without my patch):
>>>
>>> [17907.984647] usb 6-2: new SuperSpeed USB device number 54 using xhci_hcd
>>> [17908.012036] usb 6-2: No SuperSpeed endpoint companion for config 1
>>> interface 1 altsetting 0 ep 2: using minimum values
>>> [17908.012040] usb 6-2: No SuperSpeed endpoint companion for config 1
>>> interface 1 altsetting 0 ep 131: using minimum values
>>> [17908.013652] usb 6-2: New USB device found, idVendor=xxxx, idProduct=xxxx
>>> [17908.013656] usb 6-2: New USB device strings: Mfr=1, Product=2,
>>> SerialNumber=3
>>> [17908.013658] usb 6-2: Product: xxxxxxx
>>> [17908.013661] usb 6-2: Manufacturer: xxxxxx
>>> [17908.013664] usb 6-2: SerialNumber: 1234567890
>>> [17908.014680] xhci_hcd 0000:05:00.0: ERROR: unexpected command
>>> completion code 0x11.
>>
>> hmmm... completed with unknown code ? Odd. Mathias, any idea what this
>> is ?
>>
>
> Parameter error, xhci doesn't like one of the values in one of the contexts we
> give it (slot context, endpoint context etc)

okay, thanks :-)

-- 
balbi

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