DWC OTG TX path optimisation for 11-current

[Andreas Schwarz]

On 30.07.15, Svatopluk Kraus wrote:
> On Wed, Jul 29, 2015 at 5:49 PM, Hans Petter Selasky <hps at selasky.org> wrote:
>> On 07/29/15 17:45, John-Mark Gurney wrote:
>>>
>>> Just for your information, when I start buildworld, the system
>>>>
>>>> responds very fast (console, ssh). After about one hour, it starts to
>>>> print the following warnings:
>>
>> Did this happen before r285935 aswell or only after this revision?
>
> Yes, it did. I can't say from which revision it's happening. I try to
> keep kernel updated with each change related to this problem, as I
> hope that it helps. But the problem is still present.
>
> However, the kernels were built without INVARIANTS. Yesterday, I
> prepared some debug patch which needed INVARIANTS anf KTR options and
> the problem did not happen. The buildworld finished in about 15 hours
> (taken from uptime) so it was about 2 hours faster then with kernel
> before r285935.

This could be important, my kernel config is also without INVARIANTS.

-asc