Commit c5ecffe6 authored Oct 01, 2023 by Linus Torvalds

Merge tag 'sched-urgent-2023-10-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fix from Ingo Molnar:
 "Fix a RT tasks related lockup/live-lock during CPU offlining"

* tag 'sched-urgent-2023-10-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/rt: Fix live lock between select_fallback_rq() and RT push

parents 3a38c57a fc090277

kernel/sched/cpupri.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -101,6 +101,7 @@ static inline int __cpupri_find(struct cpupri cp, struct task_struct p,

		if (lowest_mask) {
		cpumask_and(lowest_mask, &p->cpus_mask, vec->mask);
		cpumask_and(lowest_mask, lowest_mask, cpu_active_mask);

		/*
		* We have to ensure that we have at least one bit