Re: [PATCH] Revert "cpuidle: Make drivers initialize polling state"

From: Rafael J. Wysocki
Date: Sun Feb 04 2018 - 04:18:22 EST


On Sun, Feb 4, 2018 at 10:12 AM, Rafael J. Wysocki <rafael@xxxxxxxxxx> wrote:
> On Mon, Jan 22, 2018 at 5:27 PM, Ville Syrjala
> <ville.syrjala@xxxxxxxxxxxxxxx> wrote:
>> From: Ville SyrjÃlà <ville.syrjala@xxxxxxxxxxxxxxx>
>>
>> This reverts commit 1b39e3f813b4685c7a30ae964d5529a1b0e3a286.
>>
>> Makes my P3 machine oops somewhere in cpuidle. I suspect
>> CONFIG_ACPI=n may have something to do with this.
>
> And if you don't do CONFIG_ACPI=n, does it still oops?
>
> Anyway, there are later changes depending on this one, so reverting it
> won't work in general.
>
> Let me look deeper at this.

What's there in /sys/devices/system/cpu/cpuidle/current_driver on your
system with the problematic commit reverted?