DWC OTG TX path optimisation for 11-current

[Andreas Schwarz]

On 31.07.15, Hans Petter Selasky wrote:
> On 07/31/15 05:52, Andreas Schwarz wrote:
>> On 31.07.15, Andreas Schwarz wrote:
>>> On 30.07.15, Hans Petter Selasky wrote:

>>>> If this is easy to reproduce for you, can you try the SMSC patch I made?
>>>
>>> It's not so easy to reproduce, it will occur under high load (and disk IO)
>>> situations, e.g.when building the world (-j4). But not in every case,
>>> sometimes buildworld complete without a problem.
>>>
>>> If the system is in this state, it will react very very slow. System load
>>> is high (without a causing process) and it will often hang (during shutdown)
>>> when performing a reboot.
>>>
>>> I'll try your patch.
>>
>> This was fast. Patch (smsc.diff) did not help. I've applied the patch, compiled and
>> installed the new kernel and started to build the kernel tool-chain. Just 10 minutes
>> ago the problem occur again.
>
> Can you try this patch separately from the attached one?

I'll do. It's also possible to give you access to the device (if this will 
help).

-asc