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
INFO: task kworker/0:1:14 blocked for more than 140 seconds.
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(1) rhport(0) sockfd(4)
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-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: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
      Not tainted 4.19.161-syzkaller #0
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 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 0 already used
kworker/0:1     D27104    14      2 0x80000000
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
Workqueue: usb_hub_wq hub_event
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
Call Trace:
vhci_hcd vhci_hcd.0: port 0 already used
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x887/0x2040 kernel/sched/core.c:3517
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: connection closed
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 schedule+0x8d/0x1b0 kernel/sched/core.c:3561
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
 usb_kill_urb.part.0+0x197/0x220 drivers/usb/core/urb.c:697
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 vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-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 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd: 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(4)
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd: stop threads
vhci_hcd: release socket
vhci_hcd: disconnect device
 usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:692
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
 usb_start_wait_urb+0x252/0x4c0 drivers/usb/core/message.c:63
vhci_hcd: stop threads
vhci_hcd: release socket
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(4)
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-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 vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd: release socket
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-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 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 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: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(4)
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-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 vhci_hcd.0: port 0 already used
 hub_port_init+0x12d9/0x2fa0 drivers/usb/core/hub.c:4654
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
 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+0x1cf8/0x43f0 drivers/usb/core/hub.c:5391
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-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: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 process_one_work+0x864/0x1570 kernel/workqueue.c:2155
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(4) rhport(0) sockfd(4)
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-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: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
 worker_thread+0x64c/0x1130 kernel/workqueue.c:2298
vhci_hcd: connection closed
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 vhci_hcd.0: pdev(5) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-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 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-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 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: connection closed
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 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
 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: release socket
vhci_hcd vhci_hcd.0: port 0 already used
INFO: task kworker/1:0:19 blocked for more than 140 seconds.
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(0) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-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 vhci_hcd.0: port 0 already used
      Not tainted 4.19.161-syzkaller #0
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(4)
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-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: disconnect device
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: stop threads
vhci_hcd: connection closed
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-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: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
kworker/1:0     D26448    19      2 0x80000000
Workqueue: usb_hub_wq hub_event
Call Trace:
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x887/0x2040 kernel/sched/core.c:3517
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: pdev(5) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd: 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
 schedule+0x8d/0x1b0 kernel/sched/core.c:3561
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.part.0+0x197/0x220 drivers/usb/core/urb.c:697
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
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
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-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: 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
vhci_hcd vhci_hcd.0: port 0 already used
 usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:692
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
 usb_start_wait_urb+0x252/0x4c0 drivers/usb/core/message.c:63
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 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: pdev(3) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-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 0 already used
vhci_hcd: release socket
vhci_hcd: connection closed
 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: pdev(0) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-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 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: pdev(4) rhport(0) sockfd(4)
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-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: 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
 usb_get_descriptor+0xc5/0x1b0 drivers/usb/core/message.c:654
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-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
 usb_get_device_descriptor+0x81/0xf0 drivers/usb/core/message.c:926
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 vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 hub_port_init+0x748/0x2fa0 drivers/usb/core/hub.c:4749
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
 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+0x1cf8/0x43f0 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: 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
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: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-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
 process_one_work+0x864/0x1570 kernel/workqueue.c:2155
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
 worker_thread+0x64c/0x1130 kernel/workqueue.c:2298
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd 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 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 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: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-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
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
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: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
INFO: task kworker/1:3:7755 blocked for more than 140 seconds.
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-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
      Not tainted 4.19.161-syzkaller #0
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-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: disconnect device
vhci_hcd: connection closed
kworker/1:3     D
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
28136  7755      2 0x80000000
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
Workqueue: usb_hub_wq hub_event
vhci_hcd vhci_hcd.0: port 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 vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
Call Trace:
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x887/0x2040 kernel/sched/core.c:3517
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: 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: disconnect device
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(4)
 schedule+0x8d/0x1b0 kernel/sched/core.c:3561
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
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 vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
 usb_kill_urb.part.0+0x197/0x220 drivers/usb/core/urb.c:697
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: por