Re: [PATCH] sched/core: Report failed rt migrations to non-root cgroup without rt bandwidth under RT_GROUP_SCHED

[Aaron Tomlin]

On Wed, Sep 17, 2025 at 11:37:37AM +0200, Michal Koutný wrote:
> So I'd primarily suggest you to disable CONFIG_RT_GROUP_SCHED. It seems
> you ran into a situation where you have kernel with
> CONFIG_RT_GROUP_SCHED but userspace that'd like to use cgroup v2 and
> these two are known not get well along. (Alternatively, you may switch
> userspace to v1 if you really really need RT groups.)

Thanks Michal! I initially thought you were suggesting to "normalize" the
RT task in this context (e.g. a simplified version of
__sched_setscheduler()) to allow forward progress so the CPU controller can
be attached. Please ignore.


Kind regards,
-- 
Aaron Tomlin