Re: [PATCH 1/3] sched_ext: Prevent CPU kicks from exiting schedulers

[Tejun Heo]

On Thu, Apr 09, 2026 at 11:21:24AM +0800, Zhao Mengmeng wrote:
> From: Zhao Mengmeng <zhaomengmeng@xxxxxxxxxx>
> 
> On PC with 8 core, when running scx_central with stress-ng -c 2 --io 8,
> if enable/disable scx_central frequently, dmesg will pop an message:
> 
>     [   38.214510] sched_ext: BPF scheduler "central" enabled
>     [   47.809167] hrtimer: interrupt took 11287895 ns
>     [   48.233813] sched_ext: BPF scheduler "central" disabled (unregistered from user space)
>     [   48.248460] kick_cpus_irq_workfn() called with NULL scx_kick_syncs <---- here

So, this is not really a problem. I think all we need to do it switching
that to a debug message.

Thanks.

-- 
tejun