Hello, Zqiang. > > > > // concurrent sr_normal_gp_cleanup work might observe this update. > > smp_store_release(&rcu_state.srs_done_tail, wait_tail); > > ASSERT_EXCLUSIVE_WRITER(rcu_state.srs_done_tail); > > > > - if (wait_tail) > > + if (wait_tail->next) > > queue_work(system_highpri_wq, &sr_normal_gp_cleanup); > > > > I'm testing these patches :) , one question is as follows: > Can we use (WQ_MEM_RECLAIM | WQ_HIGHPR)type of workqueue to perform > wake-up actions? avoid kworker creation failure under memory pressure, causing > the wake-up action to be delayed. > I do not have any objections in not doing that, so we can add. Thank for testing this! -- Uladzislau Rezki