vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used INFO: task kworker/1:2:2886 blocked for more than 140 seconds. vhci_hcd vhci_hcd.0: port 0 already used Not tainted 4.19.149-syzkaller #0 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN "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: Failed attach request for unsupported USB speed: UNKNOWN kworker/1:2 D27920 2886 2 0x80000000 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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) Workqueue: usb_hub_wq hub_event vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket Call Trace: vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN context_switch kernel/sched/core.c:2828 [inline] __schedule+0x8e5/0x22e0 kernel/sched/core.c:3517 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(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN schedule+0x8d/0x1b0 kernel/sched/core.c:3561 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) usb_kill_urb.part.0+0x197/0x220 drivers/usb/core/urb.c:697 vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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 vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:692 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN usb_start_wait_urb+0x24f/0x2b0 drivers/usb/core/message.c:63 vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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 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: release socket vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN usb_internal_control_msg drivers/usb/core/message.c:101 [inline] usb_control_msg+0x31c/0x4a0 drivers/usb/core/message.c:152 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used usb_get_descriptor+0xc5/0x1b0 drivers/usb/core/message.c:654 vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN usb_get_device_descriptor+0x81/0xf0 drivers/usb/core/message.c:926 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3) hub_port_init+0xb32/0x2ea0 drivers/usb/core/hub.c:4749 vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used hub_port_connect drivers/usb/core/hub.c:5020 [inline] hub_port_connect_change drivers/usb/core/hub.c:5203 [inline] port_event drivers/usb/core/hub.c:5311 [inline] hub_event+0x1981/0x3fc0 drivers/usb/core/hub.c:5391 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd: release socket vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used process_one_work+0x796/0x14e0 kernel/workqueue.c:2155 vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used worker_thread+0x64c/0x1130 kernel/workqueue.c:2298 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) vhci_hcd: release socket vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN kthread+0x33f/0x460 kernel/kthread.c:259 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed 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:415 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used INFO: task kworker/0:3:6454 blocked for more than 140 seconds. vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN Not tainted 4.19.149-syzkaller #0 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 0 already used "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads kworker/0:3 D27680 6454 2 0x80000000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x8e5/0x22e0 kernel/sched/core.c:3517 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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(2) speed_str(full-speed) vhci_hcd: connection closed 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: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN schedule+0x8d/0x1b0 kernel/sched/core.c:3561 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN usb_kill_urb.part.0+0x197/0x220 drivers/usb/core/urb.c:697 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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(5) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: connection closed vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:692 vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) 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 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: disconnect device usb_start_wait_urb+0x24f/0x2b0 drivers/usb/core/message.c:63 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN usb_internal_control_msg drivers/usb/core/message.c:101 [inline] usb_control_msg+0x31c/0x4a0 drivers/usb/core/message.c:152 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN hub_port_init+0x8b3/0x2ea0 drivers/usb/core/hub.c:4654 vhci_hcd: disconnect device vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads hub_port_connect drivers/usb/core/hub.c:5020 [inline] hub_port_connect_change drivers/usb/core/hub.c:5203 [inline] port_event drivers/usb/core/hub.c:5311 [inline] hub_event+0x1981/0x3fc0 drivers/usb/core/hub.c:5391 vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 0 already used process_one_work+0x796/0x14e0 kernel/workqueue.c:2155 vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) process_scheduled_works kernel/workqueue.c:2214 [inline] worker_thread+0x82b/0x1130 kernel/workqueue.c:2300 vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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(2) speed_str(full-speed) vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN kthread+0x33f/0x460 kernel/kthread.c:259 vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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:415 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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used INFO: task kworker/0:1:6490 blocked for more than 140 seconds. vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN Not tainted 4.19.149-syzkaller #0 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 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(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads kworker/0:1 D27344 6490 2 0x80000000 vhci_hcd vhci_hcd.0: port 0 already used Workqueue: usb_hub_wq hub_event vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN Call Trace: vhci_hcd: release socket context_switch kernel/sched/core.c:2828 [inline] __schedule+0x8e5/0x22e0 kernel/sched/core.c:3517 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device schedule+0x8d/0x1b0 kernel/sched/core.c:3561 vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN usb_kill_urb.part.0+0x197/0x220 drivers/usb/core/urb.c:697 vhci_hcd: release socket vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:692 vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) usb_start_wait_urb+0x24f/0x2b0 drivers/usb/core/message.c:63 vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3) vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket vhci_hcd: disconnect device usb_internal_control_msg drivers/usb/core/message.c:101 [inline] usb_control_msg+0x31c/0x4a0 drivers/usb/core/message.c:152 vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) vhci_hcd: release socket vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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 hub_port_init+0x8b3/0x2ea0 drivers/usb/core/hub.c:4654 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) hub_port_connect drivers/usb/core/hub.c:5020 [inline] hub_port_connect_change drivers/usb/core/hub.c:5203 [inline] port_event drivers/usb/core/hub.c:5311 [inline] hub_event+0x1981/0x3fc0 drivers/usb/core/hub.c:5391 vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads process_one_work+0x796/0x14e0 kernel/workqueue.c:2155 vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN worker_thread+0x64c/0x1130 kernel/workqueue.c:2298 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) 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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN kthread+0x33f/0x460 kernel/kthread.c:259 vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) vhci_hcd: release socket vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used INFO: task kworker/1:0:6498 blocked for more than 140 seconds. vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 0 already used Not tainted 4.19.149-syzkaller #0 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN kworker/1:0 D28040 6498 2 0x80000000 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads 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(2) speed_str(full-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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket Workqueue: usb_hub_wq hub_event vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN Call Trace: vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used context_switch kernel/sched/core.c:2828 [inline] __schedule+0x8e5/0x22e0 kernel/sched/core.c:3517 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used schedule+0x8d/0x1b0 kernel/sched/core.c:3561 vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) usb_kill_urb.part.0+0x197/0x220 drivers/usb/core/urb.c:697 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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 vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:692 vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used usb_start_wait_urb+0x24f/0x2b0 drivers/usb/core/message.c:63 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3) vhci_hcd: stop threads vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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 usb_internal_control_msg drivers/usb/core/message.c:101 [inline] usb_control_msg+0x31c/0x4a0 drivers/usb/core/message.c:152 vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-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 vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) hub_port_init+0x8b3/0x2ea0 drivers/usb/core/hub.c:4654 vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: release socket vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN hub_port_connect drivers/usb/core/hub.c:5020 [inline] hub_port_connect_change drivers/usb/core/hub.c:5203 [inline] port_event drivers/usb/core/hub.c:5311 [inline] hub_event+0x1981/0x3fc0 drivers/usb/core/hub.c:5391 vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: connection closed vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used process_one_work+0x796/0x14e0 kernel/workqueue.c:2155 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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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: Failed attach request for unsupported USB speed: UNKNOWN worker_thread+0x64c/0x1130 kernel/workqueue.c:2298 vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: release socket vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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: pdev(5) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket kthread+0x33f/0x460 kernel/kthread.c:259 vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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: port 0 already used vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN INFO: task kworker/1:4:6536 blocked for more than 140 seconds. vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used 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: Failed attach request for unsupported USB speed: UNKNOWN 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(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) Not tainted 4.19.149-syzkaller #0 vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN kworker/1:4 D27688 6536 2 0x80000000 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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 Workqueue: usb_hub_wq hub_event vhci_hcd: release socket vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN Call Trace: vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN context_switch kernel/sched/core.c:2828 [inline] __schedule+0x8e5/0x22e0 kernel/sched/core.c:3517 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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(2) speed_str(full-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: Failed attach request for unsupported USB speed: UNKNOWN schedule+0x8d/0x1b0 kernel/sched/core.c:3561 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used usb_kill_urb.part.0+0x197/0x220 drivers/usb/core/urb.c:697 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:692 vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads usb_start_wait_urb+0x24f/0x2b0 drivers/usb/core/message.c:63 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd: release socket vhci_hcd: disconnect device usb_internal_control_msg drivers/usb/core/message.c:101 [inline] usb_control_msg+0x31c/0x4a0 drivers/usb/core/message.c:152 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket vhci_hcd: connection closed vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN usb_get_descriptor+0xc5/0x1b0 drivers/usb/core/message.c:654 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd: stop threads vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket usb_get_device_descriptor+0x81/0xf0 drivers/usb/core/message.c:926 vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: stop threads hub_port_init+0xb32/0x2ea0 drivers/usb/core/hub.c:4749 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed 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 hub_port_connect drivers/usb/core/hub.c:5020 [inline] hub_port_connect_change drivers/usb/core/hub.c:5203 [inline] port_event drivers/usb/core/hub.c:5311 [inline] hub_event+0x1981/0x3fc0 drivers/usb/core/hub.c:5391 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed 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(2) speed_str(full-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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN process_one_work+0x796/0x14e0 kernel/workqueue.c:2155 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used worker_thread+0x64c/0x1130 kernel/workqueue.c:2298 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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 kthread+0x33f/0x460 kernel/kthread.c:259 vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd: release socket vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed 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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 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: Failed attach request for unsupported USB speed: UNKNOWN Showing all locks held in the system: vhci_hcd: release socket vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device 1 lock held by khungtaskd/1094: vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN #0: 0000000039c6a7e6 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x291 kernel/locking/lockdep.c:4440 vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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 5 locks held by kworker/u4:3/2317: vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: disconnect device 5 locks held by kworker/1:2/2886: vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads #0: 00000000ab3365e7 ((wq_completion)"usb_hub_wq"){+.+.}, at: process_one_work+0x692/0x14e0 kernel/workqueue.c:2126 vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN #1: 0000000077f5dcab ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x6c8/0x14e0 kernel/workqueue.c:2130 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket #2: 00000000a89e54c4 (&dev->mutex){....}, at: device_lock include/linux/device.h:1173 [inline] #2: 00000000a89e54c4 (&dev->mutex){....}, at: hub_event+0x10f/0x3fc0 drivers/usb/core/hub.c:5337 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN #3: 00000000bf04ff50 (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2977 [inline] #3: 00000000bf04ff50 (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5019 [inline] #3: 00000000bf04ff50 (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5203 [inline] #3: 00000000bf04ff50 (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5311 [inline] #3: 00000000bf04ff50 (&port_dev->status_lock){+.+.}, at: hub_event+0x196c/0x3fc0 drivers/usb/core/hub.c:5391 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: pdev(4) rhport(0) sockfd(3) #4: 000000007013f6c4 (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1b5/0x2ea0 drivers/usb/core/hub.c:4528 vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd: connection closed 1 lock held by systemd-journal/3723: vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device 1 lock held by in:imklog/6175: vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd: stop threads 5 locks held by kworker/0:3/6454: vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) #0: 00000000ab3365e7 ((wq_completion)"usb_hub_wq"){+.+.}, at: process_one_work+0x692/0x14e0 kernel/workqueue.c:2126 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) #1: 0000000038f8d8d8 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x6c8/0x14e0 kernel/workqueue.c:2130 vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used #2: 00000000ecd3fc92 (&dev->mutex){....}, at: device_lock include/linux/device.h:1173 [inline] #2: 00000000ecd3fc92 (&dev->mutex){....}, at: hub_event+0x10f/0x3fc0 drivers/usb/core/hub.c:5337 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used #3: 0000000091e8ac83 (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2977 [inline] #3: 0000000091e8ac83 (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5019 [inline] #3: 0000000091e8ac83 (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5203 [inline] #3: 0000000091e8ac83 (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5311 [inline] #3: 0000000091e8ac83 (&port_dev->status_lock){+.+.}, at: hub_event+0x196c/0x3fc0 drivers/usb/core/hub.c:5391 vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN #4: 000000005e93afff (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1b5/0x2ea0 drivers/usb/core/hub.c:4528 vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed 5 locks held by kworker/0:1/6490: 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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN #0: 00000000ab3365e7 ((wq_completion)"usb_hub_wq"){+.+.}, at: process_one_work+0x692/0x14e0 kernel/workqueue.c:2126 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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN #1: 000000000bea8aba ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x6c8/0x14e0 kernel/workqueue.c:2130 vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) vhci_hcd: stop threads vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used 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(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 0 already used #2: 00000000fd81c642 (&dev->mutex){....}, at: device_lock include/linux/device.h:1173 [inline] #2: 00000000fd81c642 (&dev->mutex){....}, at: hub_event+0x10f/0x3fc0 drivers/usb/core/hub.c:5337 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used #3: 00000000d8504121 (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2977 [inline] #3: 00000000d8504121 (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5019 [inline] #3: 00000000d8504121 (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5203 [inline] #3: 00000000d8504121 (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5311 [inline] #3: 00000000d8504121 (&port_dev->status_lock){+.+.}, at: hub_event+0x196c/0x3fc0 drivers/usb/core/hub.c:5391 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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(2) speed_str(full-speed) vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used #4: 00000000708615af (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1b5/0x2ea0 drivers/usb/core/hub.c:4528 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used 5 locks held by kworker/1:0/6498: vhci_hcd: release socket vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN #0: 00000000ab3365e7 ((wq_completion)"usb_hub_wq"){+.+.}, at: process_one_work+0x692/0x14e0 kernel/workqueue.c:2126 vhci_hcd: connection closed 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(2) speed_str(full-speed) vhci_hcd: disconnect device #1: 00000000c25d9655 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x6c8/0x14e0 kernel/workqueue.c:2130 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN #2: 000000006afe082d (&dev->mutex){....}, at: device_lock include/linux/device.h:1173 [inline] #2: 000000006afe082d (&dev->mutex){....}, at: hub_event+0x10f/0x3fc0 drivers/usb/core/hub.c:5337 vhci_hcd: connection closed vhci_hcd: release socket #3: 00000000e6667234 (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2977 [inline] #3: 00000000e6667234 (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5019 [inline] #3: 00000000e6667234 (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5203 [inline] #3: 00000000e6667234 (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5311 [inline] #3: 00000000e6667234 (&port_dev->status_lock){+.+.}, at: hub_event+0x196c/0x3fc0 drivers/usb/core/hub.c:5391 vhci_hcd vhci_hcd.0: port 0 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(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device #4: 0000000040c704a7 (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1b5/0x2ea0 drivers/usb/core/hub.c:4528 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 5 locks held by kworker/1:4/6536: vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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 #0: 00000000ab3365e7 ((wq_completion)"usb_hub_wq"){+.+.}, at: process_one_work+0x692/0x14e0 kernel/workqueue.c:2126 vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN #1: 00000000391c794e ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x6c8/0x14e0 kernel/workqueue.c:2130 vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) #2: 0000000020207d89 (&dev->mutex){....}, at: device_lock include/linux/device.h:1173 [inline] #2: 0000000020207d89 (&dev->mutex){....}, at: hub_event+0x10f/0x3fc0 drivers/usb/core/hub.c:5337 vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used #3: 00000000fbdc81f3 (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2977 [inline] #3: 00000000fbdc81f3 (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5019 [inline] #3: 00000000fbdc81f3 (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5203 [inline] #3: 00000000fbdc81f3 (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5311 [inline] #3: 00000000fbdc81f3 (&port_dev->status_lock){+.+.}, at: hub_event+0x196c/0x3fc0 drivers/usb/core/hub.c:5391 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: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN #4: 00000000f4ac5afb (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1b5/0x2ea0 drivers/usb/core/hub.c:4528 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used 3 locks held by syz-executor585/3935: vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) 3 locks held by syz-executor585/3938: vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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: pdev(2) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) #0: 0000000075c758ba (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1823 [inline] #0: 0000000075c758ba (&rq->lock){-.-.}, at: __schedule+0x257/0x22e0 kernel/sched/core.c:3455 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN #1: 0000000039c6a7e6 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline] #1: 0000000039c6a7e6 (rcu_read_lock){....}, at: update_curr+0x2c3/0x8b0 kernel/sched/fair.c:857 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket #2: 000000002645e61e (&sig->wait_chldexit){....}, at: __wake_up_common_lock+0xb0/0x170 kernel/sched/wait.c:120 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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3) 3 locks held by syz-executor585/3959: vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads #0: 00000000927301fd (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1823 [inline] #0: 00000000927301fd (&rq->lock){-.-.}, at: __schedule+0x257/0x22e0 kernel/sched/core.c:3455 #1: 0000000039c6a7e6 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline] #1: 0000000039c6a7e6 (rcu_read_lock){....}, at: update_curr+0x2c3/0x8b0 kernel/sched/fair.c:857 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(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device #2: 00000000f7e7b08f (&sig->wait_chldexit){....}, at: __wake_up_common_lock+0xb0/0x170 kernel/sched/wait.c:120 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used 3 locks held by syz-executor585/3966: vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed #0: 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(2) speed_str(full-speed) 00000000927301fd (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1823 [inline] 00000000927301fd (&rq->lock){-.-.}, at: __schedule+0x257/0x22e0 kernel/sched/core.c:3455 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd: connection closed #1: vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket 0000000039c6a7e6 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline] 0000000039c6a7e6 (rcu_read_lock){....}, at: update_curr+0x2c3/0x8b0 kernel/sched/fair.c:857 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used #2: 0000000051c655a2 (&sig->wait_chldexit){....}, at: __wake_up_common_lock+0xb0/0x170 kernel/sched/wait.c:120 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd: stop threads vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) 3 locks held by syz-executor585/3986: 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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) #0: 0000000075c758ba (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1823 [inline] #0: 0000000075c758ba (&rq->lock){-.-.}, at: __schedule+0x257/0x22e0 kernel/sched/core.c:3455 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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(2) speed_str(full-speed) 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 #1: 0000000039c6a7e6 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline] #1: 0000000039c6a7e6 (rcu_read_lock){....}, at: update_curr+0x2c3/0x8b0 kernel/sched/fair.c:857 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN #2: 0000000047444267 (&sig->wait_chldexit){....}, at: __wake_up_common_lock+0xb0/0x170 kernel/sched/wait.c:120 vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used 3 locks held by syz-executor585/3996: vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3) vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 3 locks held by syz-executor585/4004: vhci_hcd: stop threads vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: connection closed 3 locks held by syz-executor585/4007: vhci_hcd: disconnect device vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used #0: 00000000927301fd (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1823 [inline] #0: 00000000927301fd (&rq->lock){-.-.}, at: __schedule+0x257/0x22e0 kernel/sched/core.c:3455 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) #1: 0000000039c6a7e6 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline] #1: 0000000039c6a7e6 (rcu_read_lock){....}, at: update_curr+0x2c3/0x8b0 kernel/sched/fair.c:857 vhci_hcd: release socket vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device #2: 000000002645e61e (&sig->wait_chldexit){....}, at: __wake_up_common_lock+0xb0/0x170 kernel/sched/wait.c:120 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: release socket vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd: connection closed 2 locks held by syz-executor585/4018: 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(2) speed_str(full-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 vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN #0: 00000000927301fd (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1823 [inline] #0: 00000000927301fd (&rq->lock){-.-.}, at: __schedule+0x257/0x22e0 kernel/sched/core.c:3455 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket #1: 0000000039c6a7e6 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline] #1: 0000000039c6a7e6 (rcu_read_lock){....}, at: update_curr+0x2c3/0x8b0 kernel/sched/fair.c:857 vhci_hcd: disconnect device 3 locks held by syz-executor585/4029: vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used #0: 00000000927301fd (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1823 [inline] #0: 00000000927301fd (&rq->lock){-.-.}, at: __schedule+0x257/0x22e0 kernel/sched/core.c:3455 vhci_hcd: connection closed 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(2) speed_str(full-speed) vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN #1: 0000000039c6a7e6 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline] #1: 0000000039c6a7e6 (rcu_read_lock){....}, at: update_curr+0x2c3/0x8b0 kernel/sched/fair.c:857 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: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device #2: 000000002645e61e (&sig->wait_chldexit){....}, at: __wake_up_common_lock+0xb0/0x170 kernel/sched/wait.c:120 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 3 locks held by syz-executor585/4041: vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket #0: 00000000927301fd (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1823 [inline] #0: 00000000927301fd (&rq->lock){-.-.}, at: __schedule+0x257/0x22e0 kernel/sched/core.c:3455 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: disconnect device vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3) vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used #1: 0000000039c6a7e6 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline] #1: 0000000039c6a7e6 (rcu_read_lock){....}, at: update_curr+0x2c3/0x8b0 kernel/sched/fair.c:857 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN #2: 0000000047444267 (&sig->wait_chldexit){....}, at: __wake_up_common_lock+0xb0/0x170 kernel/sched/wait.c:120 vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 3 locks held by syz-executor585/4054: vhci_hcd: release socket #0: 000000002c3164d7 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2780 [inline] #0: 000000002c3164d7 (sb_writers#5){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548 vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN 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(2) speed_str(full-speed) #1: 00000000825f7630 (&of->mutex){+.+.}, at: kernfs_fop_write+0x200/0x470 fs/kernfs/file.c:307 vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: connection closed vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: devid(0) speed(2) speed_str(full-speed) vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: release socket #2: 000000002645e61e (&sig->wait_chldexit){....}, at: __wake_up_common_lock+0xb0/0x170 kernel/sched/wait.c:120 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: disconnect device 3 locks held by syz-executor585/4068: vhci_hcd vhci_hcd.0: port 0 already used vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd: stop threads vhci_hcd: Failed attach request for unsupported USB speed: UNKNOWN vhci_hcd vhci_hcd.0: port 0 already used