From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Subject: Re: [PATCH v7 00/11] Stop monitoring disabled devices
Date: Wed, 1 Jul 2020 16:25:49 +0200
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To: Andrzej Pietrasiewicz <andrzej.p@collabora.com>, linux-pm@vger.kernel.org, linux-acpi@vger.kernel.org, netdev@vger.kernel.org, linux-wireless@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-renesas-soc@vger.kernel.org, linux-rockchip@lists.infradead.org
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List-Id: linux-rockchip.vger.kernel.org

On 01/07/2020 12:23, Andrzej Pietrasiewicz wrote:
> Hi,
> 

[ ... ]

>>>>
>>>> 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?

Timeout logging. Boot hangs.

>>> 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?

I assume you are talking about the entropy for random?

It would be really surprising if it is the case. The message appears
asynchronously, I believe the boot flow is stuck in a mutex.


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