Re: [PATCH sched_ext/for-6.13-fixes] sched_ext: Fix dsq_local_on selftest

Ihor Solodrai
2025-01-22T19:10:08Z

On Tuesday, January 21st, 2025 at 5:40 PM, Tejun Heo <tj@kernel.org> wrote:

>
>
> Hello, sorry about the delay.
>
> On Wed, Jan 15, 2025 at 11:50:37PM +0000, Ihor Solodrai wrote:
> ...
>
> > 2025-01-15T23:28:55.8238375Z [ 5.334631] sched_ext: BPF scheduler "dsp_local_on" disabled (runtime error)
> > 2025-01-15T23:28:55.8243034Z [ 5.335420] sched_ext: dsp_local_on: SCX_DSQ_LOCAL[_ON] verdict target cpu 1 not allowed for kworker/u8:1[33]
>
>
> That's a head scratcher. It's a single node 2 cpu instance and all unbound
> kworkers should be allowed on all CPUs. I'll update the test to test the
> actual cpumask but can you see whether this failure is consistent or flaky?

I re-ran all the jobs, and all sched_ext jobs have failed (3/3).
Previous time only 1 of 3 runs failed.

https://github.com/kernel-patches/vmtest/actions/runs/12798804552/job/36016405680

>
> Thanks.
>
> --
> tejun