On 2020-06-17 07:11:36 [-0300], Marcelo Tosatti wrote: > If your application busy-spins with DPDK (such as FlexRAN does): > > https://www.slideshare.net/LuminaNetworks/osn-bay-area-feb-2019-meetup-intel-5g-flexran-solution-131647692 I see. > Then v5.8-rc1 does not work, right? (remote pagevec locking + remote > draining would be necessary). No, it is what we have in latest rt-devel: A per-CPU spinlock replacement for preempt_disable() on CONFIG_PREEMPT_RT. We use the schedule_work_on() as mainline does. Sebastian