[LTP] [PATCH v2] sched_football: synchronize with kickoff flag to reduce skew
Li Wang
liwang@redhat.com
Fri Sep 5 14:49:15 CEST 2025
On Fri, Sep 5, 2025 at 8:31 PM Cyril Hrubis <chrubis@suse.cz> wrote:
> Hi!
> > This has improved something, but still observes sporadic fail on RHEL
> stock
> > kernel.
> > However, both the RHEL RT-kernel and the mainline v6.17-rc4 stock kernel
> > pass.
>
> Maybe add a short usleep() before the referee sets the kickoff_flag so
> that the system has more time to shuffle processes?
>
Thanks, I do manually test and now almost 1/20 times fail.
And the worth mentioning that this is not a new failure in RHEL kernels.
Those patches since the barrier have already much improved the test
result from RHEL side. At least from RHEL RT-kernel I didn't observe
fail any more.
So ,as long as the patch works on the SUSE kernel to resolve it's NEW
problem,
I think we can merge.
--
Regards,
Li Wang
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