BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 42s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x100
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=21 refcnt=22
    pending: 9*nsim_dev_hwstats_traffic_work, 4*psi_avgs_work, vmstat_shepherd, 7*ovs_dp_masks_rebalance
workqueue events_long: flags=0x100
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=7 refcnt=8
    pending: 7*defense_work_handler
workqueue events_unbound: flags=0x2
  pwq 8: cpus=0-1 flags=0x6 nice=0 active=38 refcnt=39
    in-flight: 6992:cfg80211_wiphy_work for 68s ,39:cfg80211_wiphy_work for 62s ,4874:cfg80211_wiphy_work for 68s ,15:cfg80211_wiphy_work for 74s ,1209:cfg80211_wiphy_work for 78s ,1417:cfg80211_wiphy_work for 53s ,12:cfg80211_wiphy_work for 76s
    pending: cfg80211_wiphy_work, toggle_allocation_gate, 8*nsim_dev_trap_report_work, cfg80211_wiphy_work, flush_memcg_stats_dwork, 2*cfg80211_wiphy_work, nsim_dev_trap_report_work, cfg80211_wiphy_work, 2*macvlan_process_broadcast, 2*cfg80211_wiphy_work, 2*macvlan_process_broadcast, crng_reseed, macvlan_process_broadcast, cfg80211_wiphy_work, 3*macvlan_process_broadcast, cfg80211_wiphy_work, 2*macvlan_process_broadcast