Date: Tue, 18 Aug 2015 15:52:36 +0200 From: Svatopluk Kraus <onwahe@gmail.com> To: Hans Petter Selasky <hps@selasky.org> Cc: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: DWC OTG TX path optimisation for 11-current Message-ID: <CAFHCsPXwL4bzu8092enWLM8Humh9e4PijRw85Uo2FDBycuGPPg@mail.gmail.com> In-Reply-To: <55D335CE.4080702@selasky.org> References: <55A7D8CE.4020809@selasky.org> <55B8AB76.7030603@selasky.org> <CAFHCsPUMaYEwJsaGUFuw9yZi_5bmraSBsOYpRWvSeuebpXBJUA@mail.gmail.com> <55B8B297.1010008@selasky.org> <CAFHCsPVGLs8j6LAV%2Bg4rP_ueTOd8pUOupYFGvmgC3XGcJC720Q@mail.gmail.com> <20150729154516.GH78154@funkthat.com> <55B8F5EC.2050908@selasky.org> <46ad096c958.1a82a175@mail.schwarzes.net> <55B9C3E2.5040501@selasky.org> <46ae815c7c3.447237c8@mail.schwarzes.net> <46aece00b53.3c1cdc1f@mail.schwarzes.net> <55BB2A5F.9000502@selasky.org> <46baa16c4ce.6efd29ef@mail.schwarzes.net> <55CF31A1.5080205@selasky.org> <CAFHCsPUKwNLkeSPSHHUs=vwFFAnBd_9HRPxaS6tEC0cR3y_C6Q@mail.gmail.com> <55D31D11.3050509@selasky.org> <CAFHCsPXbBSpkDtggN%2BiBm=vpYwOTpi7nH=Z0G4RiyvoVXuw7_g@mail.gmail.com> <55D32912.1070707@selasky.org> <CAFHCsPU=OtdS9XCcbRQwEsymsjTq6aEtnNbDYOmS7DzHaKv7sA@mail.gmail.com> <55D331D7.9080702@selasky.org> <CAFHCsPW6A8rdGqmpk9VjfABoH9iubr_vOjW4rw6GKVtbo6_nmA@mail.gmail.com> <55D335CE.4080702@selasky.org>
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On Tue, Aug 18, 2015 at 3:40 PM, Hans Petter Selasky <hps@selasky.org> wrote: > On 08/18/15 15:34, Svatopluk Kraus wrote: >> >> On Tue, Aug 18, 2015 at 3:23 PM, Hans Petter Selasky <hps@selasky.org> >> wrote: >>> >>> On 08/18/15 15:12, Svatopluk Kraus wrote: >>>> >>>> >>>> On Tue, Aug 18, 2015 at 2:46 PM, Hans Petter Selasky <hps@selasky.org> >>>> wrote: >>>>> >>>>> >>>>> 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? >>>>> >>>> >>>> System response time is still bad. >>>> >>> >>> Is "kgdb" working on your setup? Can you dump all kernel threads? >> >> >> db> ps >> pid ppid pgrp uid state wmesg wchan cmd > > >> > > Not "ps", but "alltrace" I think. > All trace is attached.
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