Re: usb: warning in vhci_hcd_probe/lockdep_init_map

[Shuah Khan]

On 12/02/2016 09:23 AM, Shuah Khan wrote:
> On 12/02/2016 09:09 AM, Andrey Konovalov wrote:
>> On Fri, Dec 2, 2016 at 4:58 PM, Greg Kroah-Hartman
>> <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
>>> On Fri, Dec 02, 2016 at 03:35:44PM +0100, Andrey Konovalov wrote:
>>>> Hi!
>>>>
>>>> I've got the following error report while booting the kernel with
>>>> various usb configs enabled.
>>>
>>> Any hint as to what these "various usb configs" are?
>>
>> Hi Greg,
>>
>> Here's my .config:
>> https://gist.github.com/xairy/46bc7495dfa7d78701d937af81db0175
>>
>> Thanks for looking at this!
>>
>>>
>>>> On commit 2caceb3294a78c389b462e7e236a4e744a53a474 (Dec 1).
> 
> Looks like the above commit at the latest on Linus's master
> that is do with
> 
> ovl: fix d_real() for stacked fs
> 
> Nothing jumped out at me from the log. What's your ability to
> bisect the problem?

Greg/Andrey,

Okay looks like the problem is due to vhci using dynamically allocated
memory for the lock_key. This problem is introduced in

commit: 0775a9cbc694e8c7276688be3bbd2f386167ab54