Re: cpuidle regression ?

Daniel Lezcano
2019-12-09T11:35:25Z

On 09/12/2019 11:50, Rafael J. Wysocki wrote:
> On Mon, Dec 9, 2019 at 11:32 AM Daniel Lezcano
> <daniel.lezcano@linaro.org> wrote:
>>
>> On 09/12/2019 10:26, Rafael J. Wysocki wrote:
>>> On Sun, Dec 8, 2019 at 11:40 AM Daniel Lezcano
>>> <daniel.lezcano@linaro.org> wrote:
>>>>
>>>>
>>>> Hi Rafael,
>>>>
>>>> the latest linux-next kernelci report indicates a kernel bug for the
>>>> imx6 platform. I don't have this board so it is not possible to
>>>> investigate it.
>>>>
>>>> https://storage.kernelci.org/next/master/next-20191208/arm/multi_v7_defconfig/gcc-8/lab-collabora/boot-imx6q-sabrelite.html
>>>>
>>>> [ ... ]
>>>>
>>>> [ 3.372501] Unable to handle kernel NULL pointer dereference at
>>>> virtual address 00000000
>>>>
>>>> [ ... ]
>>>>
>>>> [ 3.408898] PC is at _find_first_bit_le+0xc/0x2c
>>>> [ 3.413785] LR is at cpuidle_driver_state_disabled+0x40/0xa0
>>>>
>>>>
>>>> Not sure if it is related to the latest changes or not.
>>>
>>> It does seem so, in which case the attached patch should address it.
>>>
>>> Is there a way to test the patch alone or do I need to push it
>>> somewhere to be tested?
>>
>> Is the bleeding-edge branch monitored by kernelci ?
>
> No, it is not right now, AFAICS.

I have a imx7, I will try to reproduce the issue on it. Otherwise, I can
test on the 'testing' thermal branch temporarily.