vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed vhci_hcd: disconnect device INFO: task kworker/1:0:18 blocked for more than 140 seconds. vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used Not tainted 4.14.198-syzkaller #0 vhci_hcd: stop threads "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. vhci_hcd vhci_hcd.0: pdev(4) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: release socket kworker/1:0 D vhci_hcd: disconnect device 28440 18 2 0x80000000 vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed Workqueue: usb_hub_wq hub_event vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used Call Trace: vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(1) rhport(1) sockfd(5) vhci_hcd: stop threads vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) context_switch kernel/sched/core.c:2808 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3384 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd: connection closed schedule+0x8d/0x1b0 kernel/sched/core.c:3428 vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) usb_kill_urb.part.0+0x125/0x190 drivers/usb/core/urb.c:691 vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(0) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: pdev(5) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:686 vhci_hcd: connection closed vhci_hcd: stop threads usb_start_wait_urb+0x206/0x260 drivers/usb/core/message.c:62 vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) usb_internal_control_msg drivers/usb/core/message.c:100 [inline] usb_control_msg+0x302/0x450 drivers/usb/core/message.c:151 vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(2) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used usb_get_descriptor+0xc0/0x160 drivers/usb/core/message.c:652 vhci_hcd: stop threads usb_get_device_descriptor+0x71/0xd0 drivers/usb/core/message.c:924 vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket hub_port_init+0x625/0x28b0 drivers/usb/core/hub.c:4647 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used hub_port_connect drivers/usb/core/hub.c:4905 [inline] hub_port_connect_change drivers/usb/core/hub.c:5088 [inline] port_event drivers/usb/core/hub.c:5194 [inline] hub_event+0x1bc5/0x39a0 drivers/usb/core/hub.c:5274 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used process_one_work+0x793/0x14a0 kernel/workqueue.c:2116 vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: pdev(4) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(1) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: release socket kthread+0x30d/0x420 kernel/kthread.c:232 vhci_hcd: disconnect device vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(0) rhport(1) sockfd(5) ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: release socket vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device INFO: task kworker/1:2:2807 blocked for more than 140 seconds. vhci_hcd vhci_hcd.0: port 0 already used Not tainted 4.14.198-syzkaller #0 vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. vhci_hcd: release socket kworker/1:2 D vhci_hcd vhci_hcd.0: pdev(5) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used 27992 2807 2 0x80000000 vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads Workqueue: usb_hub_wq hub_event vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd: connection closed Call Trace: vhci_hcd: disconnect device context_switch kernel/sched/core.c:2808 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3384 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) vhci_hcd: stop threads vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: release socket vhci_hcd: disconnect device schedule+0x8d/0x1b0 kernel/sched/core.c:3428 vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 0 already used usb_kill_urb.part.0+0x125/0x190 drivers/usb/core/urb.c:691 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(2) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:686 vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used usb_start_wait_urb+0x206/0x260 drivers/usb/core/message.c:62 vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(4) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) usb_internal_control_msg drivers/usb/core/message.c:100 [inline] usb_control_msg+0x302/0x450 drivers/usb/core/message.c:151 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3) vhci_hcd: release socket vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used usb_get_descriptor+0xc0/0x160 drivers/usb/core/message.c:652 vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used usb_get_device_descriptor+0x71/0xd0 drivers/usb/core/message.c:924 vhci_hcd: disconnect device hub_port_init+0x625/0x28b0 drivers/usb/core/hub.c:4647 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) hub_port_connect drivers/usb/core/hub.c:4905 [inline] hub_port_connect_change drivers/usb/core/hub.c:5088 [inline] port_event drivers/usb/core/hub.c:5194 [inline] hub_event+0x1bc5/0x39a0 drivers/usb/core/hub.c:5274 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(1) rhport(1) sockfd(5) vhci_hcd: connection closed vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used process_one_work+0x793/0x14a0 kernel/workqueue.c:2116 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(0) rhport(1) sockfd(5) worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250 vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd: release socket kthread+0x30d/0x420 kernel/kthread.c:232 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) INFO: task kworker/0:2:3346 blocked for more than 140 seconds. vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used Not tainted 4.14.198-syzkaller #0 vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. vhci_hcd vhci_hcd.0: pdev(5) rhport(1) sockfd(5) kworker/0:2 D vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) vhci_hcd: stop threads vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) 27792 3346 2 0x80000000 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used Workqueue: usb_hub_wq hub_event vhci_hcd: release socket vhci_hcd: disconnect device Call Trace: vhci_hcd: connection closed vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used context_switch kernel/sched/core.c:2808 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3384 vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used schedule+0x8d/0x1b0 kernel/sched/core.c:3428 vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used usb_kill_urb.part.0+0x125/0x190 drivers/usb/core/urb.c:691 vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(2) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:686 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd: release socket vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: pdev(4) rhport(1) sockfd(5) usb_start_wait_urb+0x206/0x260 drivers/usb/core/message.c:62 vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads usb_internal_control_msg drivers/usb/core/message.c:100 [inline] usb_control_msg+0x302/0x450 drivers/usb/core/message.c:151 vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(1) rhport(1) sockfd(5) vhci_hcd: stop threads vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: release socket vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) usb_get_descriptor+0xc0/0x160 drivers/usb/core/message.c:652 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device usb_get_device_descriptor+0x71/0xd0 drivers/usb/core/message.c:924 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads hub_port_init+0x625/0x28b0 drivers/usb/core/hub.c:4647 vhci_hcd vhci_hcd.0: pdev(5) rhport(1) sockfd(5) vhci_hcd: release socket vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(0) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used hub_port_connect drivers/usb/core/hub.c:4905 [inline] hub_port_connect_change drivers/usb/core/hub.c:5088 [inline] port_event drivers/usb/core/hub.c:5194 [inline] hub_event+0x1bc5/0x39a0 drivers/usb/core/hub.c:5274 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd: connection closed vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) vhci_hcd: connection closed vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) vhci_hcd: connection closed vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 0 already used process_one_work+0x793/0x14a0 kernel/workqueue.c:2116 vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(2) rhport(1) sockfd(5) vhci_hcd: release socket vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: disconnect device INFO: task kworker/0:0:6375 blocked for more than 140 seconds. vhci_hcd vhci_hcd.0: port 1 already used Not tainted 4.14.198-syzkaller #0 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(4) rhport(1) sockfd(5) "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used kworker/0:0 D vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used 28632 6375 2 0x80000000 vhci_hcd: connection closed vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used Workqueue: usb_hub_wq hub_event vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used Call Trace: vhci_hcd: stop threads context_switch kernel/sched/core.c:2808 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3384 vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: stop threads vhci_hcd: release socket schedule+0x8d/0x1b0 kernel/sched/core.c:3428 usb_kill_urb.part.0+0x125/0x190 drivers/usb/core/urb.c:691 vhci_hcd: disconnect device vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:686 vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads usb_start_wait_urb+0x206/0x260 drivers/usb/core/message.c:62 vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(1) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3) vhci_hcd: connection closed vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) usb_internal_control_msg drivers/usb/core/message.c:100 [inline] usb_control_msg+0x302/0x450 drivers/usb/core/message.c:151 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(5) rhport(1) sockfd(5) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used usb_get_descriptor+0xc0/0x160 drivers/usb/core/message.c:652 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd: connection closed usb_get_device_descriptor+0x71/0xd0 drivers/usb/core/message.c:924 vhci_hcd vhci_hcd.0: port 0 already used hub_port_init+0x625/0x28b0 drivers/usb/core/hub.c:4647 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(0) rhport(1) sockfd(5) vhci_hcd: release socket vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) hub_port_connect drivers/usb/core/hub.c:4905 [inline] hub_port_connect_change drivers/usb/core/hub.c:5088 [inline] port_event drivers/usb/core/hub.c:5194 [inline] hub_event+0x1bc5/0x39a0 drivers/usb/core/hub.c:5274 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket process_one_work+0x793/0x14a0 kernel/workqueue.c:2116 vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250 vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used kthread+0x30d/0x420 kernel/kthread.c:232 vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(2) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used INFO: task kworker/0:1:6383 blocked for more than 140 seconds. vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(4) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 1 already used Not tainted 4.14.198-syzkaller #0 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: disconnect device kworker/0:1 D vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed 27616 6383 2 0x80000000 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used Workqueue: usb_hub_wq hub_event vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used Call Trace: vhci_hcd: stop threads context_switch kernel/sched/core.c:2808 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3384 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) schedule+0x8d/0x1b0 kernel/sched/core.c:3428 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used usb_kill_urb.part.0+0x125/0x190 drivers/usb/core/urb.c:691 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:686 vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads usb_start_wait_urb+0x206/0x260 drivers/usb/core/message.c:62 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(5) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(1) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads usb_internal_control_msg drivers/usb/core/message.c:100 [inline] usb_control_msg+0x302/0x450 drivers/usb/core/message.c:151 vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used usb_get_descriptor+0xc0/0x160 drivers/usb/core/message.c:652 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device usb_get_device_descriptor+0x71/0xd0 drivers/usb/core/message.c:924 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used hub_port_init+0x625/0x28b0 drivers/usb/core/hub.c:4647 vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: disconnect device hub_port_connect drivers/usb/core/hub.c:4905 [inline] hub_port_connect_change drivers/usb/core/hub.c:5088 [inline] port_event drivers/usb/core/hub.c:5194 [inline] hub_event+0x1bc5/0x39a0 drivers/usb/core/hub.c:5274 vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(0) rhport(1) sockfd(5) vhci_hcd: release socket vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) process_one_work+0x793/0x14a0 kernel/workqueue.c:2116 vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads process_scheduled_works kernel/workqueue.c:2176 [inline] worker_thread+0x7d3/0xff0 kernel/workqueue.c:2252 vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(2) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: release socket kthread+0x30d/0x420 kernel/kthread.c:232 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used INFO: task kworker/1:1:6424 blocked for more than 140 seconds. vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(4) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads Not tainted 4.14.198-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: release socket kworker/1:1 D vhci_hcd vhci_hcd.0: port 0 already used 28632 6424 2 0x80000000 vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used Workqueue: usb_hub_wq hub_event vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads Call Trace: vhci_hcd: release socket context_switch kernel/sched/core.c:2808 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3384 vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used schedule+0x8d/0x1b0 kernel/sched/core.c:3428 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: release socket usb_kill_urb.part.0+0x125/0x190 drivers/usb/core/urb.c:691 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:686 vhci_hcd: connection closed usb_start_wait_urb+0x206/0x260 drivers/usb/core/message.c:62 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(5) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used usb_internal_control_msg drivers/usb/core/message.c:100 [inline] usb_control_msg+0x302/0x450 drivers/usb/core/message.c:151 vhci_hcd: release socket usb_get_descriptor+0xc0/0x160 drivers/usb/core/message.c:652 vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used usb_get_device_descriptor+0x71/0xd0 drivers/usb/core/message.c:924 vhci_hcd vhci_hcd.0: pdev(1) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd: connection closed hub_port_init+0x625/0x28b0 drivers/usb/core/hub.c:4647 vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads hub_port_connect drivers/usb/core/hub.c:4905 [inline] hub_port_connect_change drivers/usb/core/hub.c:5088 [inline] port_event drivers/usb/core/hub.c:5194 [inline] hub_event+0x1bc5/0x39a0 drivers/usb/core/hub.c:5274 vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used process_one_work+0x793/0x14a0 kernel/workqueue.c:2116 vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(0) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250 vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket kthread+0x30d/0x420 kernel/kthread.c:232 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(2) rhport(1) sockfd(5) vhci_hcd: connection closed vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) Showing all locks held in the system: vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used 5 locks held by kworker/1:0/18: #0: ("usb_hub_wq"){+.+.}, at: [] process_one_work+0x6b0/0x14a0 kernel/workqueue.c:2087 #1: ((&hub->events)){+.+.}, at: [] process_one_work+0x6e6/0x14a0 kernel/workqueue.c:2091 #2: (&dev->mutex){....}, at: [] device_lock include/linux/device.h:1081 [inline] #2: (&dev->mutex){....}, at: [] hub_event+0xfc/0x39a0 drivers/usb/core/hub.c:5220 #3: (&port_dev->status_lock){+.+.}, at: [] usb_lock_port drivers/usb/core/hub.c:2934 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] hub_port_connect drivers/usb/core/hub.c:4904 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] hub_port_connect_change drivers/usb/core/hub.c:5088 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] port_event drivers/usb/core/hub.c:5194 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] hub_event+0x1bb0/0x39a0 drivers/usb/core/hub.c:5274 #4: (hcd->address0_mutex){+.+.}, at: [] hub_port_init+0x15b/0x28b0 drivers/usb/core/hub.c:4429 1 lock held by khungtaskd/1067: #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4548 5 locks held by kworker/1:2/2807: #0: ("usb_hub_wq"){+.+.}, at: [] process_one_work+0x6b0/0x14a0 kernel/workqueue.c:2087 #1: ((&hub->events)){+.+.}, at: [] process_one_work+0x6e6/0x14a0 kernel/workqueue.c:2091 #2: (&dev->mutex){....}, at: [] device_lock include/linux/device.h:1081 [inline] #2: (&dev->mutex){....}, at: [] hub_event+0xfc/0x39a0 drivers/usb/core/hub.c:5220 #3: (&port_dev->status_lock){+.+.}, at: [] usb_lock_port drivers/usb/core/hub.c:2934 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] hub_port_connect drivers/usb/core/hub.c:4904 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] hub_port_connect_change drivers/usb/core/hub.c:5088 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] port_event drivers/usb/core/hub.c:5194 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] hub_event+0x1bb0/0x39a0 drivers/usb/core/hub.c:5274 #4: (hcd->address0_mutex){+.+.}, at: [] hub_port_init+0x15b/0x28b0 drivers/usb/core/hub.c:4429 5 locks held by kworker/0:2/3346: #0: ("usb_hub_wq"){+.+.}, at: [] process_one_work+0x6b0/0x14a0 kernel/workqueue.c:2087 #1: ((&hub->events)){+.+.}, at: [] process_one_work+0x6e6/0x14a0 kernel/workqueue.c:2091 #2: (&dev->mutex){....}, at: [] device_lock include/linux/device.h:1081 [inline] #2: (&dev->mutex){....}, at: [] hub_event+0xfc/0x39a0 drivers/usb/core/hub.c:5220 #3: (&port_dev->status_lock){+.+.}, at: [] usb_lock_port drivers/usb/core/hub.c:2934 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] hub_port_connect drivers/usb/core/hub.c:4904 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] hub_port_connect_change drivers/usb/core/hub.c:5088 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] port_event drivers/usb/core/hub.c:5194 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] hub_event+0x1bb0/0x39a0 drivers/usb/core/hub.c:5274 #4: (hcd->address0_mutex){+.+.}, at: [] hub_port_init+0x15b/0x28b0 drivers/usb/core/hub.c:4429 5 locks held by kworker/0:0/6375: #0: ("usb_hub_wq"){+.+.}, at: [] process_one_work+0x6b0/0x14a0 kernel/workqueue.c:2087 #1: ((&hub->events)){+.+.}, at: [] process_one_work+0x6e6/0x14a0 kernel/workqueue.c:2091 #2: (&dev->mutex){....}, at: [] device_lock include/linux/device.h:1081 [inline] #2: (&dev->mutex){....}, at: [] hub_event+0xfc/0x39a0 drivers/usb/core/hub.c:5220 #3: (&port_dev->status_lock){+.+.}, at: [] usb_lock_port drivers/usb/core/hub.c:2934 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] hub_port_connect drivers/usb/core/hub.c:4904 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] hub_port_connect_change drivers/usb/core/hub.c:5088 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] port_event drivers/usb/core/hub.c:5194 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] hub_event+0x1bb0/0x39a0 drivers/usb/core/hub.c:5274 #4: (hcd->address0_mutex){+.+.}, at: [] hub_port_init+0x15b/0x28b0 drivers/usb/core/hub.c:4429 5 locks held by kworker/0:1/6383: #0: ("usb_hub_wq"){+.+.}, at: [] process_one_work+0x6b0/0x14a0 kernel/workqueue.c:2087 #1: ((&hub->events)){+.+.}, at: [] process_one_work+0x6e6/0x14a0 kernel/workqueue.c:2091 #2: (&dev->mutex){....}, at: [] device_lock include/linux/device.h:1081 [inline] #2: (&dev->mutex){....}, at: [] hub_event+0xfc/0x39a0 drivers/usb/core/hub.c:5220 #3: (&port_dev->status_lock){+.+.}, at: [] usb_lock_port drivers/usb/core/hub.c:2934 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] hub_port_connect drivers/usb/core/hub.c:4904 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] hub_port_connect_change drivers/usb/core/hub.c:5088 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] port_event drivers/usb/core/hub.c:5194 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] hub_event+0x1bb0/0x39a0 drivers/usb/core/hub.c:5274 #4: (hcd->address0_mutex){+.+.}, at: [] hub_port_init+0x15b/0x28b0 drivers/usb/core/hub.c:4429 5 locks held by kworker/1:1/6424: #0: ("usb_hub_wq"){+.+.}, at: [] process_one_work+0x6b0/0x14a0 kernel/workqueue.c:2087 #1: ((&hub->events)){+.+.}, at: [] process_one_work+0x6e6/0x14a0 kernel/workqueue.c:2091 #2: (&dev->mutex){....}, at: [] device_lock include/linux/device.h:1081 [inline] #2: (&dev->mutex){....}, at: [] hub_event+0xfc/0x39a0 drivers/usb/core/hub.c:5220 #3: (&port_dev->status_lock){+.+.}, at: [] usb_lock_port drivers/usb/core/hub.c:2934 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] hub_port_connect drivers/usb/core/hub.c:4904 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] hub_port_connect_change drivers/usb/core/hub.c:5088 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] port_event drivers/usb/core/hub.c:5194 [inline] #3: (&port_dev->status_lock){+.+.}, at: [] hub_event+0x1bb0/0x39a0 drivers/usb/core/hub.c:5274 #4: (hcd->address0_mutex){+.+.}, at: [] hub_port_init+0x15b/0x28b0 drivers/usb/core/hub.c:4429 ============================================= vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(4) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) NMI backtrace for cpu 1 vhci_hcd: release socket CPU: 1 PID: 1067 Comm: khungtaskd Not tainted 4.14.198-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 nmi_cpu_backtrace.cold+0x57/0x93 lib/nmi_backtrace.c:101 vhci_hcd: disconnect device nmi_trigger_cpumask_backtrace+0x13a/0x17f lib/nmi_backtrace.c:62 vhci_hcd vhci_hcd.0: port 0 already used trigger_all_cpu_backtrace include/linux/nmi.h:140 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:195 [inline] watchdog+0x5b9/0xb40 kernel/hung_task.c:274 vhci_hcd vhci_hcd.0: port 1 already used kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 Sending NMI from CPU 1 to CPUs 0: vhci_hcd: stop threads NMI backtrace for cpu 0 CPU: 0 PID: 6372 Comm: kworker/u4:0 Not tainted 4.14.198-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usbip_event event_handler task: ffff88808d9be280 task.stack: ffff8880a34b8000 RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline] RIP: 0010:select_idle_sibling kernel/sched/fair.c:5846 [inline] RIP: 0010:select_idle_sibling+0x9f/0x980 kernel/sched/fair.c:5832 RSP: 0018:ffff8880aea07bf8 EFLAGS: 00000046 RAX: dffffc0000000000 RBX: ffff8880aea1f6a0 RCX: 0000000000000010 RDX: 1ffff11015d43ed4 RSI: 0000000000000000 RDI: ffff8880aea2beb8 RBP: ffff8880a996ad40 R08: 0000000000000000 R09: 0000000000000010 R10: ffff88808d9beb80 R11: ffff88808d9be280 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880977c0180 FS: 0000000000000000(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcef0aa8e78 CR3: 00000000a346f000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: select_task_rq_fair+0x10a7/0x2300 kernel/sched/fair.c:6006 select_task_rq kernel/sched/core.c:1563 [inline] try_to_wake_up+0x4a2/0x1100 kernel/sched/core.c:2072 hrtimer_wakeup+0x43/0x60 kernel/time/hrtimer.c:1441 __run_hrtimer kernel/time/hrtimer.c:1223 [inline] __hrtimer_run_queues+0x30b/0xc80 kernel/time/hrtimer.c:1287 hrtimer_interrupt+0x1e6/0x5e0 kernel/time/hrtimer.c:1321 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1075 [inline] smp_apic_timer_interrupt+0x117/0x5e0 arch/x86/kernel/apic/apic.c:1100 apic_timer_interrupt+0x93/0xa0 arch/x86/entry/entry_64.S:793 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline] RIP: 0010:console_trylock_spinning kernel/printk/printk.c:1685 [inline] RIP: 0010:vprintk_emit+0x549/0x620 kernel/printk/printk.c:1922 RSP: 0018:ffff8880a34bfb70 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff10 RAX: ffff88808d9be280 RBX: 1ffffffff0fa2d21 RCX: 1ffff11011b37d6a RDX: 0000000000000000 RSI: ffff88808d9beb30 RDI: 0000000000000297 RBP: ffff8880a34bfba8 R08: ffffffff8a07f7d0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000016 R13: ffff8880a7d78100 R14: 0000000000000297 R15: 0000000000000000 vprintk_func+0x58/0x152 kernel/printk/printk_safe.c:401 printk+0x9e/0xbc kernel/printk/printk.c:1996 vhci_shutdown_connection.cold+0x3c/0x7f3 drivers/usb/usbip/vhci_hcd.c:1038 event_handler+0x18a/0x420 drivers/usb/usbip/usbip_event.c:92 process_one_work+0x793/0x14a0 kernel/workqueue.c:2116 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 Code: 3c 02 00 0f 85 a0 08 00 00 48 8b 44 24 18 48 03 1c c5 60 4d 9d 87 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 80 3c 02 00 <0f> 85 22 08 00 00 48 8b 03 48 89 44 24 28 e8 6e c5 0b 00 85 c0 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd: release socket vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device