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Subject: Re: [PATCH v7 00/11] Stop monitoring disabled devices
To:     Daniel Lezcano <daniel.lezcano@linaro.org>,
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        =?UTF-8?Q?Niklas_S=c3=b6derlund?= <niklas.soderlund@ragnatech.se>,
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 <47111821-d691-e71d-d740-e4325e290fa4@linaro.org>
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 <a531d80f-afd1-2dec-6c77-ed984e97595c@collabora.com>
 <db1ff4e1-cbf8-89b3-5d64-b91a1fd88a41@linaro.org>
From:   Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Message-ID: <73942aea-ae79-753c-fe90-d4a99423d548@collabora.com>
Date:   Wed, 1 Jul 2020 12:23:29 +0200
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Hi,

W dniu 30.06.2020 o 20:33, Daniel Lezcano pisze:
> On 30/06/2020 18:56, Andrzej Pietrasiewicz wrote:
>> Hi,
>>
>> W dniu 30.06.2020 o 17:53, Daniel Lezcano pisze:
>>> On 30/06/2020 17:29, Andrzej Pietrasiewicz wrote:
>>>> Hi Daniel,
>>>>
>>>> W dniu 30.06.2020 o 16:53, Daniel Lezcano pisze:
>>>>> On 30/06/2020 15:43, Andrzej Pietrasiewicz wrote:
>>>>>> Hi Daniel,
>>>>>>
>>>>>> I am reading the logs and can't find anything specific to thermal.
>>>>>>
>>>>>> What I can see is
>>>>>>
>>>>>> "random: crng init done"
>>>>>>
>>>>>> with large times (~200s) and then e.g.
>>>>>>
>>>>>> 'auto-login-action timed out after 283 seconds'
>>>>>>
>>>>>> I'm looking at e.g.
>>>>>> https://storage.kernelci.org/thermal/testing/v5.8-rc3-11-gf5e50bf4d3ef/arm/multi_v7_defconfig/gcc-8/lab-baylibre/baseline-imx6q-sabrelite.html
>>>>>>
>>>>>>
>>>>>>
>>>>
>>>> f5e50bf4d3ef is PATCH 11/11. Does the problem happen at PATCH 1-10/11?
>>>> PATCH 11/11 renames a method and the code compiles, so it seems
>>>> unlikely that this is causing problems. One should never say never,
>>>> though ;)
>>>
>>> The sha1 is just the HEAD for the kernel reference. The regression
>>> happens with your series, somewhere.
>>>
>>>> The reported failure is not due to some test failing but rather due
>>>> to timeout logging into the test system. Could it be that there is
>>>> some other problem?
>>>
>>> I did reproduce:
>>>
>>> v5.8-rc3 + series => imx6 hang at boot time
>>> v5.8-rc3 => imx6 boots correctly
>>>

What did you reproduce? Timeout logging in to the test system or a "real" 
failure of a test?

>>
>> I kindly ask for a bisect.
> 
> I will give a try but it is a very long process as the board is running
> on kernelci.
> 
> I was not able to reproduce it on imx7 despite it is the same sensor :/
> 
> 

Could it be that the thermal sensors somehow contribute to entropy and after
the series is applied on some machines it takes more time to gather enough
entropy?

Andrzej