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: disconnect device INFO: task kworker/1:0:18 blocked for more than 140 seconds. vhci_hcd: stop threads Not tainted 4.14.210-syzkaller #0 vhci_hcd: release socket vhci_hcd vhci_hcd.0: pdev(2) rhport(1) sockfd(5) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) vhci_hcd: connection closed vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. vhci_hcd vhci_hcd.0: port 0 already used kworker/1:0 D vhci_hcd vhci_hcd.0: port 1 already used 28576 18 2 0x80000000 vhci_hcd: release socket Workqueue: usb_hub_wq hub_event vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(3) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) 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: stop threads Call Trace: vhci_hcd vhci_hcd.0: port 0 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(3) speed_str(high-speed) 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 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: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used schedule+0x8d/0x1b0 kernel/sched/core.c:3428 vhci_hcd: connection closed usb_kill_urb.part.0+0x125/0x190 drivers/usb/core/urb.c:691 usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:686 usb_start_wait_urb+0x209/0x440 drivers/usb/core/message.c:62 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 0 already used 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(3) speed_str(high-speed) 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 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: pdev(5) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-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: 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 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: release socket 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 1 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 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: connection closed 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(3) speed_str(high-speed) vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used hub_port_init+0xfdc/0x2970 drivers/usb/core/hub.c:4555 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+0x1923/0x3dc0 drivers/usb/core/hub.c:5274 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: pdev(4) rhport(1) sockfd(5) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd: stop threads 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(3) speed_str(high-speed) 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: connection closed process_one_work+0x793/0x14a0 kernel/workqueue.c:2116 vhci_hcd: connection closed vhci_hcd: connection closed vhci_hcd: disconnect device 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 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: pdev(1) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd: release socket worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250 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 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 vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd: release socket ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 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 INFO: task kworker/1:2:2651 blocked for more than 140 seconds. 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: pdev(2) rhport(1) sockfd(5) vhci_hcd: release socket vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(0) rhport(1) sockfd(5) Not tainted 4.14.210-syzkaller #0 vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) 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 0 already used "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads kworker/1:2 D vhci_hcd vhci_hcd.0: port 0 already used 27368 2651 2 0x80000000 vhci_hcd vhci_hcd.0: pdev(3) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd vhci_hcd.0: port 1 already used Workqueue: usb_hub_wq hub_event vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed Call Trace: 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: stop threads context_switch kernel/sched/core.c:2808 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3384 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(3) speed_str(high-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 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 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed schedule+0x8d/0x1b0 kernel/sched/core.c:3428 vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) vhci_hcd: release socket vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd vhci_hcd.0: port 0 already used 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 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: 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 vhci_hcd.0: port 1 already used vhci_hcd: connection closed usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:686 vhci_hcd: release socket usb_start_wait_urb+0x209/0x440 drivers/usb/core/message.c:62 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 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(1) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-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 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 vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd: release socket 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(3) speed_str(high-speed) vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3) 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: devid(0) speed(3) speed_str(high-speed) 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 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 vhci_hcd.0: port 1 already used hub_port_init+0xfdc/0x2970 drivers/usb/core/hub.c:4555 vhci_hcd vhci_hcd.0: pdev(5) rhport(1) sockfd(5) 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+0x1923/0x3dc0 drivers/usb/core/hub.c:5274 vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) 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: connection closed vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 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 vhci_hcd.0: port 1 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: 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: 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: 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(3) speed_str(high-speed) 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 0 already used process_scheduled_works kernel/workqueue.c:2176 [inline] worker_thread+0x7d3/0xff0 kernel/workqueue.c:2252 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 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd vhci_hcd.0: port 1 already used kthread+0x30d/0x420 kernel/kthread.c:232 vhci_hcd: release socket 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: stop threads vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 vhci_hcd: connection closed vhci_hcd: connection closed INFO: task kworker/0:0:7966 blocked for more than 140 seconds. 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 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(1) rhport(1) sockfd(5) Not tainted 4.14.210-syzkaller #0 vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) 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 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 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 1 already used kworker/0:0 D vhci_hcd vhci_hcd.0: pdev(2) rhport(1) sockfd(5) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used 28160 7966 2 0x80000000 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: port 1 already used vhci_hcd: release socket Workqueue: usb_hub_wq hub_event 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: pdev(0) rhport(1) sockfd(5) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) Call Trace: vhci_hcd: stop threads 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: pdev(3) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) 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 schedule+0x8d/0x1b0 kernel/sched/core.c:3428 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd: disconnect device 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: port 0 already used vhci_hcd: stop threads vhci_hcd: connection closed 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: pdev(0) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:686 vhci_hcd vhci_hcd.0: port 0 already used usb_start_wait_urb+0x209/0x440 drivers/usb/core/message.c:62 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 1 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 1 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 1 already used vhci_hcd: connection closed 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 vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 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(3) speed_str(high-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 1 already used vhci_hcd vhci_hcd.0: port 1 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: stop threads vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) vhci_hcd: release socket vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd: connection closed 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 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd: release socket 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 1 already used vhci_hcd: disconnect device vhci_hcd: connection closed 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(5) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd vhci_hcd.0: port 1 already used hub_port_init+0x629/0x2970 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: 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: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 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+0x1923/0x3dc0 drivers/usb/core/hub.c:5274 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(4) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) 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: devid(0) speed(3) speed_str(high-speed) 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: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device 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: port 1 already used vhci_hcd: connection closed 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: disconnect device 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: devid(0) speed(3) speed_str(high-speed) 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 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 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: pdev(2) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: pdev(1) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250 vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used 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: stop threads vhci_hcd vhci_hcd.0: pdev(0) rhport(1) sockfd(5) vhci_hcd: release socket vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-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 vhci_hcd: connection closed vhci_hcd: connection closed 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 0 already used vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd: release socket INFO: task kworker/0:1:7974 blocked for more than 140 seconds. vhci_hcd vhci_hcd.0: pdev(3) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-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 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: port 0 already used vhci_hcd: stop threads Not tainted 4.14.210-syzkaller #0 vhci_hcd: release socket vhci_hcd: connection closed "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 0 already used vhci_hcd: disconnect device kworker/0:1 D28160 7974 2 0x80000000 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: pdev(0) rhport(0) sockfd(3) vhci_hcd: stop threads vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) Workqueue: usb_hub_wq hub_event 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 Call Trace: 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: disconnect device context_switch kernel/sched/core.c:2808 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3384 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(1) rhport(0) sockfd(3) vhci_hcd: stop threads vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-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 vhci_hcd.0: port 1 already used 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(3) speed_str(high-speed) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used schedule+0x8d/0x1b0 kernel/sched/core.c:3428 vhci_hcd: stop threads 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 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: port 1 already used vhci_hcd: connection closed vhci_hcd: connection closed 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 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: pdev(4) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads usb_start_wait_urb+0x209/0x440 drivers/usb/core/message.c:62 vhci_hcd vhci_hcd.0: pdev(5) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-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 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: pdev(4) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed 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 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed 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 1 already used hub_port_init+0xfdc/0x2970 drivers/usb/core/hub.c:4555 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 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+0x1923/0x3dc0 drivers/usb/core/hub.c:5274 vhci_hcd: stop threads vhci_hcd: release socket 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 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-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 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: 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(3) speed_str(high-speed) 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 1 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: connection closed 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: stop threads 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(0) sockfd(3) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket process_scheduled_works kernel/workqueue.c:2176 [inline] worker_thread+0x7d3/0xff0 kernel/workqueue.c:2252 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 1 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: 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 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: pdev(0) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 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: pdev(1) rhport(1) sockfd(5) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) INFO: task kworker/1:1:8013 blocked for more than 140 seconds. vhci_hcd vhci_hcd.0: port 0 already used Not tainted 4.14.210-syzkaller #0 vhci_hcd vhci_hcd.0: port 0 already used "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. vhci_hcd vhci_hcd.0: pdev(3) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd: connection closed 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: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3) kworker/1:1 D vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket 28864 8013 2 0x80000000 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 Workqueue: usb_hub_wq hub_event vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) vhci_hcd: connection closed vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd: stop threads vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) Call Trace: 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 1 already used 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: pdev(5) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) 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 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: connection closed schedule+0x8d/0x1b0 kernel/sched/core.c:3428 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: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 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: 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 1 already used vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) 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: release socket 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: stop threads 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(3) speed_str(high-speed) usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:686 vhci_hcd: release socket vhci_hcd vhci_hcd.0: pdev(4) rhport(1) sockfd(5) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) usb_start_wait_urb+0x209/0x440 drivers/usb/core/message.c:62 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(3) speed_str(high-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 1 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd: connection closed vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: release socket vhci_hcd: disconnect device 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 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: pdev(2) rhport(0) sockfd(3) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) 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: devid(0) speed(3) speed_str(high-speed) 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: pdev(1) rhport(1) sockfd(5) vhci_hcd: release socket vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd vhci_hcd.0: port 1 already used 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: disconnect device 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: connection closed 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: 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: pdev(3) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd: disconnect device hub_port_init+0xfdc/0x2970 drivers/usb/core/hub.c:4555 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 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+0x1923/0x3dc0 drivers/usb/core/hub.c:5274 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: disconnect device vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 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(3) speed_str(high-speed) 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 vhci_hcd.0: pdev(3) rhport(0) sockfd(3) vhci_hcd: release socket vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) process_one_work+0x793/0x14a0 kernel/workqueue.c:2116 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 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250 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(3) speed_str(high-speed) 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: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd: disconnect device kthread+0x30d/0x420 kernel/kthread.c:232 vhci_hcd vhci_hcd.0: port 0 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 vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd: release socket vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-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 0 already used INFO: task kworker/1:3:8018 blocked for more than 140 seconds. 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 Not tainted 4.14.210-syzkaller #0 vhci_hcd: stop threads "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 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: 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: pdev(4) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads kworker/1:3 D vhci_hcd: connection closed vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3) vhci_hcd: stop threads vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket 28280 8018 2 0x80000000 vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads Workqueue: usb_hub_wq hub_event 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(3) speed_str(high-speed) vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: connection closed vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: pdev(2) rhport(1) sockfd(5) Call Trace: vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) 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 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 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 0 already used vhci_hcd: connection closed 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 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 0 already used schedule+0x8d/0x1b0 kernel/sched/core.c:3428 vhci_hcd: stop threads vhci_hcd: release socket usb_kill_urb.part.0+0x125/0x190 drivers/usb/core/urb.c:691 vhci_hcd: disconnect device 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 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads 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(3) speed_str(high-speed) 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(1) sockfd(5) vhci_hcd: release socket vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:686 vhci_hcd: connection closed usb_start_wait_urb+0x209/0x440 drivers/usb/core/message.c:62 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 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed 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 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 vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(3) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-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 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 vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used hub_port_init+0xfdc/0x2970 drivers/usb/core/hub.c:4555 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: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(5) rhport(1) sockfd(5) 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+0x1923/0x3dc0 drivers/usb/core/hub.c:5274 vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-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: 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 0 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used 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(3) speed_str(high-speed) vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: release socket 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(3) speed_str(high-speed) process_one_work+0x793/0x14a0 kernel/workqueue.c:2116 vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 1 already used worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250 vhci_hcd: stop threads 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 1 already used vhci_hcd: disconnect device 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(3) speed_str(high-speed) vhci_hcd: connection closed 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 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: 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: stop threads ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 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(3) speed_str(high-speed) vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd vhci_hcd.0: port 0 already used Showing all locks held in the system: vhci_hcd: connection closed 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 0 already used vhci_hcd vhci_hcd.0: pdev(4) rhport(1) sockfd(5) vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) 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 0 already used vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: release socket 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+0x108/0x3dc0 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+0x190e/0x3dc0 drivers/usb/core/hub.c:5274 #4: (hcd->address0_mutex){+.+.}, at: [] hub_port_init+0x15b/0x2970 drivers/usb/core/hub.c:4429 1 lock held by khungtaskd/1531: #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4548 5 locks held by kworker/1:2/2651: #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+0x108/0x3dc0 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+0x190e/0x3dc0 drivers/usb/core/hub.c:5274 #4: (hcd->address0_mutex){+.+.}, at: [] hub_port_init+0x15b/0x2970 drivers/usb/core/hub.c:4429 5 locks held by kworker/0:0/7966: #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+0x108/0x3dc0 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+0x190e/0x3dc0 drivers/usb/core/hub.c:5274 #4: (hcd->address0_mutex){+.+.}, at: [] hub_port_init+0x15b/0x2970 drivers/usb/core/hub.c:4429 5 locks held by kworker/0:1/7974: #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+0x108/0x3dc0 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+0x190e/0x3dc0 drivers/usb/core/hub.c:5274 #4: (hcd->address0_mutex){+.+.}, at: [] hub_port_init+0x15b/0x2970 drivers/usb/core/hub.c:4429 5 locks held by kworker/1:1/8013: #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+0x108/0x3dc0 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+0x190e/0x3dc0 drivers/usb/core/hub.c:5274 #4: (hcd->address0_mutex){+.+.}, at: [] hub_port_init+0x15b/0x2970 drivers/usb/core/hub.c:4429 5 locks held by kworker/1:3/8018: #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+0x108/0x3dc0 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+0x190e/0x3dc0 drivers/usb/core/hub.c:5274 #4: (hcd->address0_mutex){+.+.}, at: [] hub_port_init+0x15b/0x2970 drivers/usb/core/hub.c:4429 ============================================= vhci_hcd vhci_hcd.0: port 1 already used vhci_hcd: disconnect device NMI backtrace for cpu 1 CPU: 1 PID: 1531 Comm: khungtaskd Not tainted 4.14.210-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 vhci_hcd: connection closed 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 nmi_trigger_cpumask_backtrace+0x13a/0x17f lib/nmi_backtrace.c:62 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 0 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 vhci_hcd.0: port 1 already used NMI backtrace for cpu 0 CPU: 0 PID: 10844 Comm: syz-executor227 Not tainted 4.14.210-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8880af89e1c0 task.stack: ffff8880947f0000 RIP: 0010:lock_is_held_type+0xc7/0x210 kernel/locking/lockdep.c:4035 RSP: 0018:ffff8880ba407d60 EFLAGS: 00000086 RAX: 1ffffffff11e1252 RBX: 0000000000000086 RCX: 1ffffffff1279f58 RDX: dffffc0000000000 RSI: 00000000ffffffff RDI: ffff8880af89ea44 RBP: ffff8880aecf0a60 R08: ffffffff8b98aa30 R09: ffff8880aecf02dc R10: ffff8880af89eae8 R11: ffff8880af89e1c0 R12: ffff8880af89e1c0 R13: ffff8880aecf0280 R14: ffff8880aecf02bc R15: ffff8880aecf0a48 FS: 00007f03c340b700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5726e19000 CR3: 000000009ba69000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_is_held include/linux/lockdep.h:437 [inline] select_task_rq kernel/sched/core.c:1560 [inline] try_to_wake_up+0xa3d/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:ffff8880947f7840 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff10 RAX: ffff8880af89e1c0 RBX: 1ffffffff11e1251 RCX: 1ffff11015f13d5c RDX: 0000000000000000 RSI: ffff8880af89eac0 RDI: 0000000000000297 RBP: ffff8880947f7878 R08: ffffffff8b9a5048 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000028 R13: ffff8880b2c86500 R14: 0000000000000297 R15: 0000000000000000 dev_vprintk_emit+0x1da/0x440 drivers/base/core.c:2989 dev_printk_emit+0xa5/0xd0 drivers/base/core.c:3000 __dev_printk+0xfe/0x250 drivers/base/core.c:3012 dev_err+0xc5/0xf0 drivers/base/core.c:3055 store_attach+0x6f1/0x7c0 drivers/usb/usbip/vhci_sysfs.c:382 dev_attr_store+0x56/0x80 drivers/base/core.c:723 sysfs_kf_write+0x106/0x160 fs/sysfs/file.c:141 kernfs_fop_write+0x289/0x440 fs/kernfs/file.c:316 __vfs_write+0xe4/0x630 fs/read_write.c:480 vfs_write+0x17f/0x4d0 fs/read_write.c:544 SYSC_write fs/read_write.c:590 [inline] SyS_write+0xf2/0x210 fs/read_write.c:582 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x405af1 RSP: 002b:00007f03c340a750 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000000405af1 RDX: 0000000000000008 RSI: 00007f03c340a780 RDI: 0000000000000007 RBP: 00007f03c340a780 R08: 0000000000000000 R09: 0000000000000008 R10: 0000000000000064 R11: 0000000000000293 R12: 0000000000000007 R13: 0000000000000000 R14: 00007f03c340b9c0 R15: 0000000000000000 Code: c1 e8 03 80 3c 10 00 0f 85 4c 01 00 00 48 83 3d df 47 ae 07 00 0f 84 e8 00 00 00 fa 66 0f 1f 44 00 00 65 4c 8b 24 25 80 df 01 00 <49> 8d bc 24 84 08 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 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 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd: release socket 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 1 already used vhci_hcd vhci_hcd.0: devid(0) speed(3) speed_str(high-speed) 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 1 already used vhci_hcd: connection closed