Warning: Permanently added '10.128.0.99' (ED25519) to the list of known hosts. executing program executing program syzkaller login: [ 121.499394][ C0] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 57s! [ 121.502152][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 57s! [ 121.504713][ C0] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=-20 stuck for 53s! [ 121.507342][ C0] BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 57s! [ 121.509746][ C0] Showing busy workqueues and worker pools: [ 121.511408][ C0] workqueue events: flags=0x0 [ 121.512747][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=5/256 refcnt=6 [ 121.512775][ C0] in-flight: 3323:request_firmware_work_func [ 121.512797][ C0] pending: psi_avgs_work, hci_cmd_timeout, ovs_dp_masks_rebalance, ovs_dp_masks_rebalance [ 121.512850][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=11/256 refcnt=12 [ 121.512871][ C0] pending: vmstat_shepherd, hci_cmd_timeout, hci_cmd_timeout, hci_cmd_timeout, hci_cmd_timeout, l2cap_info_timeout, l2cap_info_timeout, l2cap_info_timeout, l2cap_info_timeout, l2cap_info_timeout, ovs_dp_masks_rebalance [ 121.512947][ C0] workqueue events_long: flags=0x0 [ 121.529845][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=2/256 refcnt=3 [ 121.529877][ C0] pending: defense_work_handler, defense_work_handler [ 121.529905][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=4/256 refcnt=5 [ 121.529926][ C0] pending: defense_work_handler, defense_work_handler, defense_work_handler, defense_work_handler [ 121.529957][ C0] workqueue events_unbound: flags=0x2 [ 121.541365][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/512 refcnt=3 [ 121.541394][ C0] pending: flush_memcg_stats_dwork [ 121.541417][ C0] workqueue events_power_efficient: flags=0x82 [ 121.546692][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=6/256 refcnt=8 [ 121.546722][ C0] pending: fb_flashcursor, neigh_periodic_work, do_cache_clean, neigh_periodic_work, gc_worker, reg_check_chans_work [ 121.546787][ C0] workqueue writeback: flags=0x4a [ 121.553780][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3 [ 121.553813][ C0] pending: wb_workfn [ 121.553834][ C0] workqueue kblockd: flags=0x18 [ 121.558454][ C0] pwq 3: cpus=1 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2 [ 121.558483][ C0] pending: blk_mq_timeout_work [ 121.558517][ C0] workqueue gid-cache-wq: flags=0xa0002 [ 121.563950][ C0] pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=4 [ 121.563982][ C0] pending: netdevice_event_work_handler [ 121.564002][ C0] inactive: netdevice_event_work_handler [ 121.564044][ C0] workqueue dm_bufio_cache: flags=0x8 [ 121.570999][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2 [ 121.571035][ C0] pending: work_fn [ 121.571068][ C0] workqueue krxrpcd: flags=0x0 [ 121.575708][ C0] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=3 [ 121.575739][ C0] pending: rxrpc_peer_keepalive_worker [ 121.575755][ C0] inactive: rxrpc_peer_keepalive_worker [ 121.575769][ C0] pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2 [ 121.575788][ C0] pending: rxrpc_peer_keepalive_worker [ 121.575825][ C0] pool 2: cpus=1 node=0 flags=0x0 nice=0 hung=57s workers=4 idle: 25 3606 21