Re: Kernel errors for dme1737

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On 02/12/2014 03:24 PM, Guenter Roeck wrote:
> On 02/12/2014 04:05 AM, Jean Delvare wrote:
>> On Wed, 12 Feb 2014 03:54:44 -0800, Guenter Roeck wrote:
>>> On 02/12/2014 03:07 AM, Jürgen Fuchsberger wrote:
>>>> i2cdump.txt
>>>>
>>>>
>>>>        0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f   
>>>> 0123456789abcdef
>>>> 00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
>>>> 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
>>>> 20: 36 00 c0 3a c4 80 27 80 ff ff ff ff ff ff ff ff    6.?:??'?........
>>>> 30: ff ff ff 00 00 00 00 00 00 00 00 00 00 00 5c 8a    ..............\?
>>>> 40: 0f db c0 20 ad d3 00 ff ad d3 ad d3 ad d3 81 7f    ??? ??..????????
>>>> 50: 81 7f 81 7f ff ff ff ff ff ff ff ff 62 62 62 cb    ????........bbb?
>>>> 60: cb cb e0 00 80 80 80 80 80 80 64 64 64 44 40 00    ???.??????dddD@.
>>>> 70: ff ff ff 09 09 09 09 09 09 00 00 00 40 00 ec 10    ...??????...@.??
>>>> 80: 7e a4 0e 00 d3 00 87 74 e0 00 4d 4d 0b 0b 0d 00    ~??.?.?t?.MM???.
>>>> 90: 04 04 04 04 0c 0c 0c 5a f1 c0 af ad d3 9d c0 00    ???????Z???????.
>>>> a0: 00 00 0c 00 02 ff ff 0b 0b fe ff fe ff ff ff ff    ..?.?..???.?....
>>>> b0: ff 00 00 00 00 00 28 28 0e 0e 0f 0f 00 00 00 00    ......((????....
>>>> c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
>>>> d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
>>>> e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
>>>> f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................
>>>
>>> That looks normal for the chip as far as I can see, and there are
>>> no errors.
>>
>> The board supports IPMI. I would guess that the errors happen when the
>> native driver and IPMI attempt to access the SMBus at the same time.
>>
> Yes, that would explanin the problem.
> 
>> As usual, my recommendation is to either use IPMI or native drivers but
>> not mix.
>>
> Agreed.
> 
OK, how can I choose which driver to use?

Juergen.


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