Re: [PATCH v4 2/8] timers/migration: Move hierarchy setup into cpuhotplug prepare callback

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On 15/07/2024 11:44, Frederic Weisbecker wrote:
Hi,

Le Mon, Jul 15, 2024 at 11:39:40AM +0100, Jon Hunter a écrit :

On 11/07/2024 09:56, Alexander Stein wrote:
Hi,

Am Mittwoch, 3. Juli 2024, 22:28:39 CEST schrieb Anna-Maria Behnsen:
When a CPU comes online the first time, it is possible that a new top level
group will be created. In general all propagation is done from the bottom
to top. This minimizes complexity and prevents possible races. But when a
new top level group is created, the formely top level group needs to be
connected to the new level. This is the only time, when the direction to
propagate changes is changed: the changes are propagated from top (new top
level group) to bottom (formerly top level group).

Now that this commit is integrated in linux-next I'm starting to see the
kernel error message:
Timer migration setup failed
on my arm64 i.MX8MP platform (imx8mp-tqma8mpql-mba8mpxl.dts).


I am also seeing the same on our 32-bit and 64-bit ARM Tegra boards.

Any feedback on this?

The patches have been reverted on -tip (still in -next?) and Anna-Maria is
working on a new version.


Thanks! They were in next-20240715 looking at this mornings tests.

Jon

--
nvpublic




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