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Subject: Re: DWC OTG TX path optimisation for 11-current
To: Svatopluk Kraus <onwahe@gmail.com>
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Cc: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org>
From: Hans Petter Selasky <hps@selasky.org>
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Date: Tue, 18 Aug 2015 14:46:10 +0200
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On 08/18/15 14:31, Svatopluk Kraus wrote:
> On Tue, Aug 18, 2015 at 1:54 PM, Hans Petter Selasky <hps@selasky.org> wrote:
>> Hi,
>>
>> On 08/18/15 13:22, Svatopluk Kraus wrote:
>>>
>>> Do I understand it well that you are not able to trigger the problem?
>>
>>
>> Maybe I haven't been trying hard enough. I've been using a kernel built from
>> "projects/hps_head" which I just updated to include the latest DWC OTG
>> patches, instead of "head". There was today a timer subsystem fix, not sure
>> if it makes any difference:
>>
>> https://svnweb.freebsd.org/changeset/base/286880
>>
>> I will try to buildworld from an external USB disk later today and see what
>> happens.
>>
>>>
>>> and still the system response time is terrible.
>>
>>
>> If you can do:
>>
>> usbconfig -d 0.1 set_config 255
>>
>> And verify that the IRQ rate goes to zero for DWC OTG, then we maybe could
>> rule out USB.
>>
>
> Note that my root filesystem was on usb disk.
>

Is the console still not responding properly after this command?

--HPS