BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 54s! BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 52s! Showing busy workqueues and worker pools: workqueue events: flags=0x0 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=5 refcnt=6 pending: psi_avgs_work, 2*nsim_dev_trap_report_work, vmstat_shepherd, kfree_rcu_monitor pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=5 refcnt=6 in-flight: 27:kfree_rcu_monitor pending: 2*nsim_dev_hwstats_traffic_work, 2*psi_avgs_work workqueue events_unbound: flags=0x2 pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: flush_memcg_stats_dwork, crng_reseed workqueue events_power_efficient: flags=0x82 pwq 8: cpus=0-1 flags=0x4 nice=0 active=4 refcnt=5 pending: neigh_periodic_work, 2*neigh_managed_work, gc_worker pwq 8: cpus=0-1 flags=0x4 nice=0 active=3 refcnt=4 in-flight: 8339:wg_ratelimiter_gc_entries pending: fb_flashcursor, neigh_periodic_work workqueue mm_percpu_wq: flags=0x8 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: vmstat_update workqueue writeback: flags=0x4a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wb_workfn workqueue dm_bufio_cache: flags=0x8 pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: work_fn workqueue ipv6_addrconf: flags=0x6000a pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=4 pending: addrconf_verify_work workqueue wg-crypt-wg0: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 in-flight: 8328:wg_packet_encrypt_worker workqueue wg-crypt-wg1: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-crypt-wg2: flags=0x28 pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2 pending: wg_packet_encrypt_worker workqueue wg-kex-wg0: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker workqueue wg-kex-wg1: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3 pending: 2*wg_packet_handshake_send_worker workqueue wg-kex-wg2: flags=0x6 pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2 pending: wg_packet_handshake_send_worker pool 6: cpus=1 node=0 flags=0x0 nice=0 hung=22s workers=4 idle: 3272 6620 pool 8: cpus=0-1 flags=0x4 nice=0 hung=52s workers=8 idle: 4046 2321 164 140 8319 8248 1220 Showing backtraces of running workers in stalled CPU-bound worker pools: