INFO: task kworker/1:2:4187 blocked for more than 143 seconds. Not tainted 5.11.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:2 state:D stack:26664 pid: 4187 ppid: 2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:4327 [inline] __schedule+0x999/0xe70 kernel/sched/core.c:5078 schedule+0x14b/0x200 kernel/sched/core.c:5157 usb_kill_urb+0x165/0x260 drivers/usb/core/urb.c:711 usb_start_wait_urb+0x1d3/0x470 drivers/usb/core/message.c:64 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x23b/0x420 drivers/usb/core/message.c:153 hub_port_init+0xa37/0x2ce0 drivers/usb/core/hub.c:4708 hub_port_connect+0xc33/0x25b0 drivers/usb/core/hub.c:5155 hub_port_connect_change+0x5c6/0xab0 drivers/usb/core/hub.c:5363 port_event+0xa6f/0x10b0 drivers/usb/core/hub.c:5509 hub_event+0x417/0xcb0 drivers/usb/core/hub.c:5591 process_one_work+0x789/0xfc0 kernel/workqueue.c:2275 process_scheduled_works kernel/workqueue.c:2337 [inline] worker_thread+0xe28/0x1300 kernel/workqueue.c:2423 kthread+0x39a/0x3c0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 INFO: task kworker/1:3:4192 blocked for more than 144 seconds. Not tainted 5.11.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:3 state:D stack:26976 pid: 4192 ppid: 2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:4327 [inline] __schedule+0x999/0xe70 kernel/sched/core.c:5078 schedule+0x14b/0x200 kernel/sched/core.c:5157 usb_kill_urb+0x165/0x260 drivers/usb/core/urb.c:711 usb_start_wait_urb+0x1d3/0x470 drivers/usb/core/message.c:64 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x23b/0x420 drivers/usb/core/message.c:153 hub_port_init+0xa37/0x2ce0 drivers/usb/core/hub.c:4708 hub_port_connect+0xc33/0x25b0 drivers/usb/core/hub.c:5155 hub_port_connect_change+0x5c6/0xab0 drivers/usb/core/hub.c:5363 port_event+0xa6f/0x10b0 drivers/usb/core/hub.c:5509 hub_event+0x417/0xcb0 drivers/usb/core/hub.c:5591 process_one_work+0x789/0xfc0 kernel/workqueue.c:2275 process_scheduled_works kernel/workqueue.c:2337 [inline] worker_thread+0xe28/0x1300 kernel/workqueue.c:2423 kthread+0x39a/0x3c0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 INFO: task kworker/0:1:8433 blocked for more than 145 seconds. Not tainted 5.11.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:1 state:D stack:26192 pid: 8433 ppid: 2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:4327 [inline] __schedule+0x999/0xe70 kernel/sched/core.c:5078 schedule+0x14b/0x200 kernel/sched/core.c:5157 usb_kill_urb+0x165/0x260 drivers/usb/core/urb.c:711 usb_start_wait_urb+0x1d3/0x470 drivers/usb/core/message.c:64 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x23b/0x420 drivers/usb/core/message.c:153 hub_port_init+0xa37/0x2ce0 drivers/usb/core/hub.c:4708 hub_port_connect+0xc33/0x25b0 drivers/usb/core/hub.c:5155 hub_port_connect_change+0x5c6/0xab0 drivers/usb/core/hub.c:5363 port_event+0xa6f/0x10b0 drivers/usb/core/hub.c:5509 hub_event+0x417/0xcb0 drivers/usb/core/hub.c:5591 process_one_work+0x789/0xfc0 kernel/workqueue.c:2275 process_scheduled_works kernel/workqueue.c:2337 [inline] worker_thread+0xe28/0x1300 kernel/workqueue.c:2423 kthread+0x39a/0x3c0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 INFO: task kworker/1:4:8476 blocked for more than 147 seconds. Not tainted 5.11.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:4 state:D stack:27472 pid: 8476 ppid: 2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:4327 [inline] __schedule+0x999/0xe70 kernel/sched/core.c:5078 schedule+0x14b/0x200 kernel/sched/core.c:5157 usb_kill_urb+0x165/0x260 drivers/usb/core/urb.c:711 usb_start_wait_urb+0x1d3/0x470 drivers/usb/core/message.c:64 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x23b/0x420 drivers/usb/core/message.c:153 hub_port_init+0xa37/0x2ce0 drivers/usb/core/hub.c:4708 hub_port_connect+0xc33/0x25b0 drivers/usb/core/hub.c:5155 hub_port_connect_change+0x5c6/0xab0 drivers/usb/core/hub.c:5363 port_event+0xa6f/0x10b0 drivers/usb/core/hub.c:5509 hub_event+0x417/0xcb0 drivers/usb/core/hub.c:5591 process_one_work+0x789/0xfc0 kernel/workqueue.c:2275 worker_thread+0xac1/0x1300 kernel/workqueue.c:2421 kthread+0x39a/0x3c0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 Showing all locks held in the system: 2 locks held by kworker/u4:4/238: 1 lock held by khungtaskd/1644: #0: ffffffff8bd11740 ( rcu_read_lock ){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 arch/x86/pci/mmconfig_64.c:151 5 locks held by kworker/1:2/4187: #0: ffff8880155da138 ( (wq_completion)usb_hub_wq ){+.+.}-{0:0} , at: process_one_work+0x6f4/0xfc0 kernel/workqueue.c:2248 #1: ffffc90005557d78 ( (work_completion)(&hub->events) ){+.+.}-{0:0} , at: process_one_work+0x733/0xfc0 kernel/workqueue.c:2250 #2: ffff888144a05218 ( &dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:737 [inline] &dev->mutex){....}-{3:3}, at: hub_event+0x112/0xcb0 drivers/usb/core/hub.c:5537 #3: ffff88801c989578 ( &port_dev->status_lock){+.+.}-{3:3} , at: usb_lock_port drivers/usb/core/hub.c:3030 [inline] , at: hub_port_connect+0xc1e/0x25b0 drivers/usb/core/hub.c:5154 #4: ffff8881446d3468 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_init+0x1ee/0x2ce0 drivers/usb/core/hub.c:4582 5 locks held by kworker/1:3/4192: #0: ffff8880155da138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x6f4/0xfc0 kernel/workqueue.c:2248 #1: ffffc90005577d78 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x733/0xfc0 kernel/workqueue.c:2250 #2: ffff88801cb7e218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:737 [inline] #2: ffff88801cb7e218 (&dev->mutex){....}-{3:3}, at: hub_event+0x112/0xcb0 drivers/usb/core/hub.c:5537 #3: ffff88801ca3d578 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3030 [inline] #3: ffff88801ca3d578 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect+0xc1e/0x25b0 drivers/usb/core/hub.c:5154 #4: ffff888144b1b368 ( hcd->address0_mutex ){+.+.}-{3:3} , at: hub_port_init+0x1ee/0x2ce0 drivers/usb/core/hub.c:4582 1 lock held by in:imklog/8133: #0: ffff88802b861c70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x2f0 fs/file.c:947 5 locks held by kworker/0:1/8433: #0: ffff8880155da138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x6f4/0xfc0 kernel/workqueue.c:2248 #1: ffffc9000a687d78 ((work_completion)(&hub->events)){+.+.}-{0:0} , at: process_one_work+0x733/0xfc0 kernel/workqueue.c:2250 #2: ffff88801ca3a218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:737 [inline] ffff88801ca3a218 (&dev->mutex){....}-{3:3}, at: hub_event+0x112/0xcb0 drivers/usb/core/hub.c:5537 #3: ffff88801c7c5578 ( &port_dev->status_lock ){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3030 [inline] ){+.+.}-{3:3}, at: hub_port_connect+0xc1e/0x25b0 drivers/usb/core/hub.c:5154 #4: ffff8881446daf68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_init+0x1ee/0x2ce0 drivers/usb/core/hub.c:4582 5 locks held by kworker/1:4/8476: #0: ffff8880155da138 ( (wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x6f4/0xfc0 kernel/workqueue.c:2248 #1: ffffc9000167fd78 ( (work_completion)(&hub->events) ){+.+.}-{0:0} , at: process_one_work+0x733/0xfc0 kernel/workqueue.c:2250 #2: ffff88801cbde218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:737 [inline] #2: ffff88801cbde218 (&dev->mutex){....}-{3:3}, at: hub_event+0x112/0xcb0 drivers/usb/core/hub.c:5537 #3: ffff888144bc1578 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3030 [inline] #3: ffff888144bc1578 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect+0xc1e/0x25b0 drivers/usb/core/hub.c:5154 #4: ffff88801caf6e68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_init+0x1ee/0x2ce0 drivers/usb/core/hub.c:4582 1 lock held by systemd-journal/19946: 3 locks held by syz-executor080/23824: 3 locks held by syz-executor080/23825: 1 lock held by syz-executor080/23832: 3 locks held by syz-executor080/23833: #0: ffff8880b9c34758 ( &rq->lock ){-.-.}-{2:2} , at: rq_lock kernel/sched/sched.h:1320 [inline] , at: __schedule+0xd8/0xe70 kernel/sched/core.c:4995 #1: ffff8880b9c1ff48 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0} , at: psi_task_switch+0x224/0x5c0 kernel/sched/psi.c:833 #2: ffff8880202354b8 (&sig->wait_chldexit){....}-{2:2}, at: __wake_up_common_lock kernel/sched/wait.c:137 [inline] #2: ffff8880202354b8 (&sig->wait_chldexit){....}-{2:2}, at: __wake_up_sync_key+0xb8/0x150 kernel/sched/wait.c:205 3 locks held by syz-executor080/23858: #0: ffff8880b9d34758 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1320 [inline] #0: ffff8880b9d34758 (&rq->lock){-.-.}-{2:2}, at: __schedule+0xd8/0xe70 kernel/sched/core.c:4995 #1: ffff8880b9d1ff48 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x224/0x5c0 kernel/sched/psi.c:833 #2: ffff8880202347b8 (&sig->wait_chldexit){....}-{2:2}, at: __wake_up_common_lock kernel/sched/wait.c:137 [inline] (&sig->wait_chldexit){....}-{2:2}, at: __wake_up_sync_key+0xb8/0x150 kernel/sched/wait.c:205 3 locks held by syz-executor080/23876: #0: ffff8880b9c34758 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1320 [inline] ffff8880b9c34758 (&rq->lock){-.-.}-{2:2}, at: __schedule+0xd8/0xe70 kernel/sched/core.c:4995 #1: ffff8880b9c1ff48 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x224/0x5c0 kernel/sched/psi.c:833 #2: ffff88801779eeb8 (&sig->wait_chldexit){....}-{2:2}, at: __wake_up_common_lock kernel/sched/wait.c:137 [inline] #2: ffff88801779eeb8 (&sig->wait_chldexit){....}-{2:2}, at: __wake_up_sync_key+0xb8/0x150 kernel/sched/wait.c:205 3 locks held by syz-executor080/23897: #0: ffff8880b9d34758 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1320 [inline] (&rq->lock){-.-.}-{2:2}, at: __schedule+0xd8/0xe70 kernel/sched/core.c:4995 #1: ffff8880b9d1ff48 ( &per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x224/0x5c0 kernel/sched/psi.c:833 #2: ffff88801779bab8 ( &sig->wait_chldexit ){....}-{2:2}, at: __wake_up_common_lock kernel/sched/wait.c:137 [inline] ){....}-{2:2}, at: __wake_up_sync_key+0xb8/0x150 kernel/sched/wait.c:205 1 lock held by syz-executor080/23951: #0: ffff8880b9d34758 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1320 [inline] ffff8880b9d34758 (&rq->lock){-.-.}-{2:2}, at: __schedule+0xd8/0xe70 kernel/sched/core.c:4995 3 locks held by syz-executor080/23962: #0: ffff8880b9d34758 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1320 [inline] #0: ffff8880b9d34758 (&rq->lock){-.-.}-{2:2}, at: __schedule+0xd8/0xe70 kernel/sched/core.c:4995 #1: ffff8880b9d1ff48 ( &per_cpu_ptr(group->pcpu, cpu)->seq ){-.-.}-{0:0} , at: psi_task_switch+0x224/0x5c0 kernel/sched/psi.c:833 #2: ffff8880202354b8 (&sig->wait_chldexit){....}-{2:2}, at: __wake_up_common_lock kernel/sched/wait.c:137 [inline] #2: ffff8880202354b8 (&sig->wait_chldexit){....}-{2:2}, at: __wake_up_sync_key+0xb8/0x150 kernel/sched/wait.c:205 3 locks held by syz-executor080/23995: #0: ffff8880b9d34758 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1320 [inline] #0: ffff8880b9d34758 (&rq->lock){-.-.}-{2:2}, at: __schedule+0xd8/0xe70 kernel/sched/core.c:4995 #1: ffff8880b9d1ff48 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x224/0x5c0 kernel/sched/psi.c:833 #2: ffff8880202347b8 (&sig->wait_chldexit){....}-{2:2}, at: __wake_up_common_lock kernel/sched/wait.c:137 [inline] #2: ffff8880202347b8 (&sig->wait_chldexit){....}-{2:2}, at: __wake_up_sync_key+0xb8/0x150 kernel/sched/wait.c:205 3 locks held by syz-executor080/24019: #0: ffff8880b9c34758 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1320 [inline] (&rq->lock){-.-.}-{2:2}, at: __schedule+0xd8/0xe70 kernel/sched/core.c:4995 #1: ffff8880b9c1ff48 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x224/0x5c0 kernel/sched/psi.c:833 #2: ffff8880202354b8 (&sig->wait_chldexit){....}-{2:2}, at: __wake_up_common_lock kernel/sched/wait.c:137 [inline] ffff8880202354b8 (&sig->wait_chldexit){....}-{2:2}, at: __wake_up_sync_key+0xb8/0x150 kernel/sched/wait.c:205 3 locks held by syz-executor080/24049: #0: ffff8880b9c34758 ( &rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1320 [inline] &rq->lock){-.-.}-{2:2}, at: __schedule+0xd8/0xe70 kernel/sched/core.c:4995 #1: