Skip site navigation (1)Skip section navigation (2)
Date:      Mon, 30 Nov 2015 17:01:25 -0600
From:      Karl Denninger <karl@denninger.net>
To:        "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org>
Subject:   Re: Raspberry Pi2 kernel warnings
Message-ID:  <565CD545.1090801@denninger.net>
In-Reply-To: <565A03CA.1010608@denninger.net>
References:  <56575896.70105@denninger.net> <CAFHCsPW4p9f4aGRffhAgFVgcYTixoJQVR707hhXZmB9B7U9v-A@mail.gmail.com> <5657E4C6.9020609@denninger.net> <56589C6B.8000100@denninger.net> <CAFHCsPUYYs3Kbfi4-tpAz-iah49s-nPyAX-akc71_4s-YMgQbQ@mail.gmail.com> <5658DB87.5010308@denninger.net> <CAFHCsPX8w%2BrJihkXX4SHaV52=08F8BT7VWordx9p2kKx8CYsLw@mail.gmail.com> <565A03CA.1010608@denninger.net>

next in thread | previous in thread | raw e-mail | index | archive | help
This is a cryptographically signed message in MIME format.

--------------ms010101030201030808040606
Content-Type: text/plain; charset=windows-1252
Content-Transfer-Encoding: quoted-printable

And.... now it's dead again.

This may not be related to the patch.... however, the kernel does appear
to use the bcm2835.... so while the patch may not be the cause something
is going on here that's not kosher....

The espeak process is killable but if I had to guess it's waiting for
what it thinks is a busy I/O to become free.

Any ideas on running this down?

On 11/28/2015 13:43, Karl Denninger wrote:
> That appears to have fixed it; espeak is again working.
>
> On 11/27/2015 17:20, Svatopluk Kraus wrote:
>> Well, I cannot imagine now how my patch could be the cause of that
>> except that sdhci is using dma channel #4 now, but it was #2, which is=

>> said to be used by GPU. And channels used by GPU are not initialized
>> now. Try to apply the attached fix just to be sure.
>>
>> FYI, my video playback freezed up after more than 12 hours of playing
>> today, so there could be some problem in communication with GPU, not
>> my patch related.
>>
>>
>>
>> On Fri, Nov 27, 2015 at 11:39 PM, Karl Denninger <karl@denninger.net> =
wrote:
>>> Hmmm... or maybe not.
>>>
>>> "espeak" (speech synthesizer) hangs in a "S" state with this change i=
n.
>>> Not sure if it's the cause but it was working before.
>>>
>>>
>>> On 11/27/2015 13:56, Svatopluk Kraus wrote:
>>>> OK, Thanks.
>>>>
>>>> On Fri, Nov 27, 2015 at 7:09 PM, Karl Denninger <karl@denninger.net>=
 wrote:
>>>>> The patch still looks good -- it ran overnight without any warnings=
 and
>>>>> is still grinning.
>>>>>
>>>>> On 11/26/2015 23:06, Karl Denninger wrote:
>>>>>> On 11/26/2015 15:20, Svatopluk Kraus wrote:
>>>>>>> On Thu, Nov 26, 2015 at 8:08 PM, Karl Denninger <karl@denninger.n=
et> wrote:
>>>>>>>> I'm getting these on a fairly consistent basis on a Pi that is t=
alking
>>>>>>>> to a Zwave USB stick and a serial USB interface (two instances t=
hat both
>>>>>>>> show up as serial devices):
>>>>>>>>
>>>>>>>> bcm_dma0: unused DMA intr CH=3D3, CS=3D20f10027
>>>>>>>> bcm_dma0: unused DMA intr CH=3D3, CS=3D20f10027
>>>>>>>> bcm_dma0: unused DMA intr CH=3D3, CS=3D20f10027
>>>>>>>> bcm_dma0: unused DMA intr CH=3D3, CS=3D20f10027
>>>>>>>> bcm_dma0: unused DMA intr CH=3D3, CS=3D20f10027
>>>>>>>> bcm_dma0: unused DMA intr CH=3D3, CS=3D20f10027
>>>>>>>> bcm_dma0: unused DMA intr CH=3D3, CS=3D20f10027
>>>>>>>> bcm_dma0: unused DMA intr CH=3D3, CS=3D20f10027
>>>>>>>> bcm_dma0: unused DMA intr CH=3D3, CS=3D20f10027
>>>>>>>> bcm_dma0: unused DMA intr CH=3D3, CS=3D20f10007
>>>>>>>> bcm_dma0: unused DMA intr CH=3D3, CS=3D20f10027
>>>>>>>> bcm_dma0: unused DMA intr CH=3D3, CS=3D20f10027
>>>>>>>> bcm_dma0: unused DMA intr CH=3D3, CS=3D20f10007
>>>>>>>> bcm_dma0: unused DMA intr CH=3D3, CS=3D20f10027
>>>>>>>> bcm_dma0: unused DMA intr CH=3D3, CS=3D20f10027
>>>>>>>> bcm_dma0: unused DMA intr CH=3D3, CS=3D20f10027
>>>>>>>> bcm_dma0: unused DMA intr CH=3D3, CS=3D20f10007
>>>>>>>>
>>>>>>>> They're showing up maybe every half-hour or so.... doesn't appea=
r to be
>>>>>>>> doing anything bad, other than displaying the message.....
>>>>>>>>
>>>>>>> I'm just finished a patch which works well for me. I plan to comm=
it it
>>>>>>> after some more testing. The patch is attached if you want to tes=
t it
>>>>>>> too.
>>>>>>>
>>>>>>> Svatopluk Kraus
>>>>>>>
>>>>>> I have the patch loaded on on the Pi that is exhibiting the proble=
m --
>>>>>> so far looks good.
>>>>>>
>>>>> --
>>>>> Karl Denninger
>>>>> karl@denninger.net <mailto:karl@denninger.net>
>>>>> /The Market Ticker/
>>>>> /[S/MIME encrypted email preferred]/
>>> --
>>> Karl Denninger
>>> karl@denninger.net <mailto:karl@denninger.net>
>>> /The Market Ticker/
>>> /[S/MIME encrypted email preferred]/

--=20
Karl Denninger
karl@denninger.net <mailto:karl@denninger.net>
/The Market Ticker/
/[S/MIME encrypted email preferred]/

--------------ms010101030201030808040606
Content-Type: application/pkcs7-signature; name="smime.p7s"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="smime.p7s"
Content-Description: S/MIME Cryptographic Signature
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--------------ms010101030201030808040606--



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?565CD545.1090801>