Re: [tip:sched/urgent] sched/fair: Clear ->h_load_next when unregistering a cgroup

[Vincent Guittot]

Hi Cruz,

On Mon, 29 Dec 2025 at 13:51, Cruz Zhao <CruzZhao@xxxxxxxxxxxxxxxxx> wrote:
>
> Hi Ingo/Peter/all,
>
> I noticed that the following patch has been queued in the
> tip:sched/urgent branch for some time but hasn't yet made
> it into mainline:
> https://lore.kernel.org/all/176478073513.498.15089394378873483436.tip-bot2@tip-bot2/
>
> Could you please check if there's anything blocking its
> merge? I wanted to ensure it doesn’t get overlooked.

>From an off list discussion w/ Peter, we need to check that this patch
is not hiding the root cause that task_h_load is not called in the
right context i.e. with rcu_read_lock(). Peter pointed out one place
in numa [1]

[1] https://lore.kernel.org/all/20251015124422.GD3419281@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/

Vincent

>
> Thanks for your time and reviewing!
>
> Best regards,
> Cruz Zhao