Re: [PATCH] sched/fair: Fix wakeup_preempt_fair for not waking up task

[Peter Zijlstra]

On Wed, Apr 29, 2026 at 06:41:02PM +0200, Vincent Guittot wrote:
> The assumption that p is always enqueued and not delayed, is only true for
> wakeup. If p was moved while sched_delayed, pick_next_entity will dequeue
> it during the attach and the cfs might become empty.

Changelog needs more text on why this is a problem.