BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 36s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x100
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=26 refcnt=27
    in-flight: 9:nsim_fib_event_work for 37s nsim_fib_event_work ,1100:nsim_fib_event_work for 37s nsim_fib_event_work
    pending: drm_fb_helper_damage_work, ovs_dp_masks_rebalance, vmstat_shepherd, 9*nsim_dev_hwstats_traffic_work, 3*psi_avgs_work, 3*ovs_dp_masks_rebalance, psi_avgs_work, 2*ovs_dp_masks_rebalance, key_garbage_collector