Re: [RFC PATCH v2 7/7] sched/fair: alternative way of accounting throttle time

Steven Rostedt
2025-05-08T13:43:37Z

On Thu, 8 May 2025 08:13:39 +0200
Jan Kiszka <jan.kiszka@siemens.com> wrote:

> On 08.05.25 04:45, Aaron Lu wrote:
> > On Wed, May 07, 2025 at 11:33:42AM +0200, Florian Bezdeka wrote:
> >> To sum up: This series fixes (or seems to fix, let's wait for one more
> >> week to be sure) a critical RT issue. Is there a chance that once we
> >> made it into mainline that we see (official) backports? 6.12 or 6.1
> >> would be nice.
> >
> > I don't think there will be official backports if this series entered
> > mainline because stable kernels only take fixes while this series changed
> > throttle behavior dramatically. Of course, this is just my personal
> > view, and the maintainer will make the final decision.
>
> With 6.12 carrying RT in-tree and this patches serious fixing a hard
> lock-up of that configuration, a backport to 6.12-stable would be
> required IMHO. Backports beyond that should be a topic for the
> (separate) rt-stable trees.
>

Agreed, and I'm adding the stable RT maintainers as well in case this needs
to go earlier than 6.12.

Thanks,

-- Steve