Raspberry Pi2 kernel warnings

[Karl Denninger]

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 at denninger.net> wrote:
>> Hmmm... or maybe not.
>>
>> "espeak" (speech synthesizer) hangs in a "S" state with this change in.
>> 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 at 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 at denninger.net> wrote:
>>>>>>> I'm getting these on a fairly consistent basis on a Pi that is talking
>>>>>>> to a Zwave USB stick and a serial USB interface (two instances that both
>>>>>>> show up as serial devices):
>>>>>>>
>>>>>>> bcm_dma0: unused DMA intr CH=3, CS=20f10027
>>>>>>> bcm_dma0: unused DMA intr CH=3, CS=20f10027
>>>>>>> bcm_dma0: unused DMA intr CH=3, CS=20f10027
>>>>>>> bcm_dma0: unused DMA intr CH=3, CS=20f10027
>>>>>>> bcm_dma0: unused DMA intr CH=3, CS=20f10027
>>>>>>> bcm_dma0: unused DMA intr CH=3, CS=20f10027
>>>>>>> bcm_dma0: unused DMA intr CH=3, CS=20f10027
>>>>>>> bcm_dma0: unused DMA intr CH=3, CS=20f10027
>>>>>>> bcm_dma0: unused DMA intr CH=3, CS=20f10027
>>>>>>> bcm_dma0: unused DMA intr CH=3, CS=20f10007
>>>>>>> bcm_dma0: unused DMA intr CH=3, CS=20f10027
>>>>>>> bcm_dma0: unused DMA intr CH=3, CS=20f10027
>>>>>>> bcm_dma0: unused DMA intr CH=3, CS=20f10007
>>>>>>> bcm_dma0: unused DMA intr CH=3, CS=20f10027
>>>>>>> bcm_dma0: unused DMA intr CH=3, CS=20f10027
>>>>>>> bcm_dma0: unused DMA intr CH=3, CS=20f10027
>>>>>>> bcm_dma0: unused DMA intr CH=3, CS=20f10007
>>>>>>>
>>>>>>> They're showing up maybe every half-hour or so.... doesn't appear to be
>>>>>>> doing anything bad, other than displaying the message.....
>>>>>>>
>>>>>> I'm just finished a patch which works well for me. I plan to commit it
>>>>>> after some more testing. The patch is attached if you want to test it
>>>>>> too.
>>>>>>
>>>>>> Svatopluk Kraus
>>>>>>
>>>>> I have the patch loaded on on the Pi that is exhibiting the problem --
>>>>> so far looks good.
>>>>>
>>>> --
>>>> Karl Denninger
>>>> karl at denninger.net <mailto:karl at denninger.net>
>>>> /The Market Ticker/
>>>> /[S/MIME encrypted email preferred]/
>> --
>> Karl Denninger
>> karl at denninger.net <mailto:karl at denninger.net>
>> /The Market Ticker/
>> /[S/MIME encrypted email preferred]/

-- 
Karl Denninger
karl at denninger.net <mailto:karl at denninger.net>
/The Market Ticker/
/[S/MIME encrypted email preferred]/
-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 2996 bytes
Desc: S/MIME Cryptographic Signature
URL: <http://lists.freebsd.org/pipermail/freebsd-arm/attachments/20151128/3abe1c55/attachment.bin>