[Xenomai] Support of Beagleboard xm rev C on 3.14-ipipe

Gilles Chanteperdrix gilles.chanteperdrix at xenomai.org
Tue Jun 24 20:31:56 CEST 2014


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On 06/24/2014 02:21 PM, Arnaud Degroote wrote:
> On 24/Jun - 08:29, Gilles Chanteperdrix wrote:
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>> On 06/24/2014 08:23 AM, Arnaud Degroote wrote:
>>> On 24/Jun - 01:45, Gilles Chanteperdrix wrote:
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>>>> On 06/23/2014 01:18 PM, Arnaud Degroote wrote:
>>>>> On 23/Jun - 11:22, Gilles Chanteperdrix wrote:
>>>>>> On 06/23/2014 11:08 AM, Arnaud Degroote wrote:
>>>>>>> Hi list,
>>>>>>> 
>>>>>>> I'm trying to deploy a 3.14 kernel on my BeagleBoard XM
>>>>>>> rev C but got several issues. So, first question, it
>>>>>>> is supposed to be supported or am I somewhere in a grey
>>>>>>> zone ?
>>>>>>> 
>>>>>>> Let describe more precisely the configuration and the 
>>>>>>> symptom. - linux-ipipe branch ipipe-3.14 - xenomai
>>>>>>> 2.6.3 + some patches from 2.6 branch (including 
>>>>>>> d1d00e0acd29bb5f9023494a883a7fa0def40917 
>>>>>>> 41cb1f73814d1094e0ea75ccbbd23ff01280787e 
>>>>>>> 7a48019268d7e1157ebb072b88f6683425f0c7c5 
>>>>>>> f00d22eca6277e780c19a5d5ecd2ed0e23dabafe )
>>>>>> 
>>>>>> It is supposed to work, could you try again with the
>>>>>> xenomai 2.6 git?
>>>>>> 
>>>>> 
>>>>> Hi Gilles,
>>>>> 
>>>>> I just tested against 2.6-git and observe the same
>>>>> behaviours.
>>>>> 
>>>>> Best regards,
>>>>> 
>>>> Could you post your configuration?
>>> 
>>> Sure, see the attached defconfig. It is basically yocto base
>>> arm kernel + xenomai (and some kernel hacking option).
>>> 
>>> 
>> Could you try to turn off CONFIG_NO_HZ ?
> 
> Without CONFIG_NO_HZ, it hangs repeatably during the boot (in the
> same place than with CONFIG_NO_HZ without CONFIG_DEBUG_LOCK_ALLOC,
> so this last option is more a timing workaround than a "real fix").
> See the attached defconfig and boot log.

Do you have the same problem if you boot using NFS instead of an SD card?

- -- 
                                                                Gilles.
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