syzbot


INFO: task hung in hub_port_init

Status: upstream: reported C repro on 2020/10/03 09:24
Reported-by: syzbot+b4d10b9f0e9790f1843e@syzkaller.appspotmail.com
First crash: 1323d, last: 444d
Similar bugs (6)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in hub_port_init C done 15888 920d 1320d 20/26 fixed on 2021/11/10 00:50
linux-5.15 INFO: task hung in hub_port_init origin:upstream C error 49 12d 403d 0/3 upstream: reported C repro on 2023/04/11 08:33
upstream INFO: task hung in hub_port_init (3) usb C error 645 5d12h 416d 0/26 upstream: reported C repro on 2023/03/28 12:23
linux-4.14 INFO: task hung in hub_port_init C error 6032 559d 1323d 0/1 upstream: reported C repro on 2020/10/03 08:19
upstream INFO: task hung in hub_port_init (2) usb C error 486 452d 914d 22/26 fixed on 2023/02/24 13:50
linux-6.1 INFO: task hung in hub_port_init origin:upstream C 49 33d 433d 0/3 upstream: reported C repro on 2023/03/11 21:39

Sample crash report:
vhci_hcd vhci_hcd.0: Device attached
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
INFO: task kworker/0:1:14 blocked for more than 140 seconds.
      Not tainted 4.19.187-syzkaller #0
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
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 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: Device attached
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 vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
kworker/0:1     D
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
28032    14      2 0x80000000
vhci_hcd: release socket
Workqueue: usb_hub_wq hub_event
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
Call Trace:
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x887/0x2040 kernel/sched/core.c:3517
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3)
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
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: pdev(4) rhport(0) sockfd(3)
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: release socket
vhci_hcd: disconnect device
 usb_kill_urb.part.0+0x197/0x220 drivers/usb/core/urb.c:697
vhci_hcd vhci_hcd.0: Device attached
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: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3)
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: Device attached
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(3) rhport(0) sockfd(3)
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
 usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:692
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: Device attached
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: pdev(5) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd: stop threads
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: Device attached
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
 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(2) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd: connection closed
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3)
 hub_port_init+0x12dc/0x2fa0 drivers/usb/core/hub.c:4654
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+0x1cd4/0x43e0 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 vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
 process_one_work+0x864/0x1570 kernel/workqueue.c:2152
vhci_hcd: release socket
vhci_hcd: disconnect device
 worker_thread+0x64c/0x1130 kernel/workqueue.c:2295
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: Device attached
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: disconnect device
 kthread+0x33f/0x460 kernel/kthread.c:259
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3)
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
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: Device attached
INFO: task kworker/1:3:7807 blocked for more than 140 seconds.
vhci_hcd: connection closed
vhci_hcd: connection closed
      Not tainted 4.19.187-syzkaller #0
vhci_hcd vhci_hcd.0: port 0 already used
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3)
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: release socket
kworker/1:3     D28088  7807      2 0x80000000
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: Device attached
Workqueue: usb_hub_wq hub_event
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd: stop threads
Call Trace:
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x887/0x2040 kernel/sched/core.c:3517
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3)
vhci_hcd 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: stop threads
 schedule+0x8d/0x1b0 kernel/sched/core.c:3561
vhci_hcd: release socket
 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: pdev(2) rhport(0) sockfd(3)
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: Device attached
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: Device attached
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: devid(0) speed(1) speed_str(low-speed)
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: Device attached
 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 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: 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: pdev(0) rhport(0) sockfd(3)
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
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: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: port 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: stop threads
vhci_hcd vhci_hcd.0: Device attached
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: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 hub_port_init+0x12dc/0x2fa0 drivers/usb/core/hub.c:4654
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3)
vhci_hcd 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: Device attached
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+0x1cd4/0x43e0 drivers/usb/core/hub.c:5391
vhci_hcd: stop threads
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: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd: release socket
 process_one_work+0x864/0x1570 kernel/workqueue.c:2152
vhci_hcd: disconnect device
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(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: Device attached
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
 process_scheduled_works kernel/workqueue.c:2211 [inline]
 worker_thread+0x82b/0x1130 kernel/workqueue.c:2297
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3)
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: connection closed
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
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(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
 kthread+0x33f/0x460 kernel/kthread.c:259
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3)
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
INFO: task kworker/0:0:8119 blocked for more than 140 seconds.
vhci_hcd: release socket
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
      Not tainted 4.19.187-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: pdev(4) rhport(0) sockfd(3)
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: Device attached
vhci_hcd: stop threads
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
vhci_hcd: release socket
kworker/0:0     D27768  8119      2 0x80000000
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
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: pdev(3) rhport(0) sockfd(3)
Call Trace:
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x887/0x2040 kernel/sched/core.c:3517
vhci_hcd: stop threads
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
 schedule+0x8d/0x1b0 kernel/sched/core.c:3561
 usb_kill_urb.part.0+0x197/0x220 drivers/usb/core/urb.c:697
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: Device attached
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: devid(0) speed(1) speed_str(low-speed)
vhci_hcd: connection closed
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
 usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:692
vhci_hcd: release socket
 usb_start_wait_urb+0x252/0x4c0 drivers/usb/core/message.c:63
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(2) rhport(0) sockfd(3)
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
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(3)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: Device attached
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
 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 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
 hub_port_init+0x12dc/0x2fa0 drivers/usb/core/hub.c:4654
vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: Device attached
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
 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+0x1cd4/0x43e0 drivers/usb/core/hub.c:5391
vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3)
vhci_hcd: connection closed
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
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3)
 process_one_work+0x864/0x1570 kernel/workqueue.c:2152
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: Device attached
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: connection closed
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
 process_scheduled_works kernel/workqueue.c:2211 [inline]
 worker_thread+0x82b/0x1130 kernel/workqueue.c:2297
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3)
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
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: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
 kthread+0x33f/0x460 kernel/kthread.c:259
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3)
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: Device attached
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3)
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
INFO: task kworker/0:3:8151 blocked for more than 140 seconds.
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd: stop threads
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
      Not tainted 4.19.187-syzkaller #0
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
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
vhci_hcd vhci_hcd.0: port 0 already used
kworker/0:3     D27720  8151      2 0x80000000
vhci_hcd vhci_hcd.0: port 0 already used
Workqueue: usb_hub_wq hub_event
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: port 0 already used
vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
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
Call Trace:
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
 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 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
 schedule+0x8d/0x1b0 kernel/sched/core.c:3561
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3)
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
 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: 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: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
 usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:692
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(1) speed_str(low-speed)
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: Device attached
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
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(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
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(2) rhport(0) sockfd(3)
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: Device attached
 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: stop threads
vhci_hcd: release socket
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
 hub_port_init+0x12dc/0x2fa0 drivers/usb/core/hub.c:4654
 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+0x1cd4/0x43e0 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: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3)
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3)
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: connection closed
vhci_hcd vhci_hcd.0: Device attached
 process_one_work+0x864/0x1570 kernel/workqueue.c:2152
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
 process_scheduled_works kernel/workqueue.c:2211 [inline]
 worker_thread+0x82b/0x1130 kernel/workqueue.c:2297
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd: release socket
 kthread+0x33f/0x460 kernel/kthread.c:259
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: Device attached
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
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(4) rhport(0) sockfd(3)
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: Device attached
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
INFO: task kworker/1:2:8166 blocked for more than 140 seconds.
vhci_hcd: connection closed
vhci_hcd: stop threads
      Not tainted 4.19.187-syzkaller #0
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
vhci_hcd vhci_hcd.0: port 0 already used
kworker/1:2     D28128  8166      2 0x80000000
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(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: Device attached
vhci_hcd: stop threads
Workqueue: usb_hub_wq hub_event
vhci_hcd: release socket
Call Trace:
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x887/0x2040 kernel/sched/core.c:3517
vhci_hcd: disconnect device
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3)
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: Device attached
 schedule+0x8d/0x1b0 kernel/sched/core.c:3561
vhci_hcd vhci_hcd.0: port 0 already used
 usb_kill_urb.part.0+0x197/0x220 drivers/usb/core/urb.c:697
vhci_hcd: stop threads
vhci_hcd: release socket
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: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3)
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
 usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:692
vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
 usb_start_wait_urb+0x252/0x4c0 drivers/usb/core/message.c:63
vhci_hcd vhci_hcd.0: Device attached
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: 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: 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(3) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
 usb_get_descriptor+0xc5/0x1b0 drivers/usb/core/message.c:654
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
 usb_get_device_descriptor+0x81/0xf0 drivers/usb/core/message.c:926
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
 hub_port_init+0x74b/0x2fa0 drivers/usb/core/hub.c:4749
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 hub_port_connect drivers/usb/core/hub.c:5020 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5203 [inline]
 port_event drivers/usb/core/hub.c:5311 [inline]
 hub_event+0x1cd4/0x43e0 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: 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 vhci_hcd.0: pdev(4) rhport(0) sockfd(3)
 process_one_work+0x864/0x1570 kernel/workqueue.c:2152
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
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: pdev(5) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
 worker_thread+0x64c/0x1130 kernel/workqueue.c:2295
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
 kthread+0x33f/0x460 kernel/kthread.c:259
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: pdev(1) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
vhci_hcd vhci_hcd.0: port 0 already used

Showing all locks held in the system:
vhci_hcd vhci_hcd.0: port 0 already used
3 locks held by kworker/u4:0/7:
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: connection closed
5 locks held by kworker/0:1/14:
vhci_hcd: disconnect device
 #0: 00000000f1e28483 ((wq_completion)"usb_hub_wq"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2123
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
 #1: 0000000014182ce5 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2127
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd: stop threads
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
 #2: 000000000afd3716 (&dev->mutex){....}, at: device_lock include/linux/device.h:1173 [inline]
 #2: 000000000afd3716 (&dev->mutex){....}, at: hub_event+0x11e/0x43e0 drivers/usb/core/hub.c:5337
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 #3: 000000005090e614 (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2977 [inline]
 #3: 000000005090e614 (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5019 [inline]
 #3: 000000005090e614 (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5203 [inline]
 #3: 000000005090e614 (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5311 [inline]
 #3: 000000005090e614 (&port_dev->status_lock){+.+.}, at: hub_event+0x1cbf/0x43e0 drivers/usb/core/hub.c:5391
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3)
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
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: connection closed
 #4: 
vhci_hcd: stop threads
vhci_hcd: connection closed
0000000092287359
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1b9/0x2fa0 drivers/usb/core/hub.c:4528
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(1) speed_str(low-speed)
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: Device attached
5 locks held by kworker/1:0/19:
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
 #0: 00000000f1e28483 ((wq_completion)"usb_hub_wq"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2123
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
 #1: 00000000f58f4e22 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2127
vhci_hcd vhci_hcd.0: port 0 already used
 #2: 0000000013fd686f (&dev->mutex){....}, at: device_lock include/linux/device.h:1173 [inline]
 #2: 0000000013fd686f (&dev->mutex){....}, at: hub_event+0x11e/0x43e0 drivers/usb/core/hub.c:5337
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: Device attached
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
 #3: 00000000718ce163 (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2977 [inline]
 #3: 00000000718ce163 (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5019 [inline]
 #3: 00000000718ce163 (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5203 [inline]
 #3: 00000000718ce163 (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5311 [inline]
 #3: 00000000718ce163 (&port_dev->status_lock){+.+.}, at: hub_event+0x1cbf/0x43e0 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: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 #4: 00000000538682fd (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1b9/0x2fa0 drivers/usb/core/hub.c:4528
vhci_hcd: stop threads
1 lock held by khungtaskd/1570:
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd: disconnect device
 #0: 000000006f7ad561 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4440
vhci_hcd vhci_hcd.0: Device attached
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
1 lock held by in:imklog/7794:
 #0: 000000003ea20b36 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3)
5 locks held by kworker/1:3/7807:
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
 #0: 00000000f1e28483 ((wq_completion)"usb_hub_wq"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2123
vhci_hcd vhci_hcd.0: Device attached
 #1: 00000000cf65d4f8 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2127
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
 #2: 00000000b5cf3cb7 (&dev->mutex){....}, at: device_lock include/linux/device.h:1173 [inline]
 #2: 00000000b5cf3cb7 (&dev->mutex){....}, at: hub_event+0x11e/0x43e0 drivers/usb/core/hub.c:5337
vhci_hcd vhci_hcd.0: port 0 already used
 #3: 000000003c89e8f9 (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2977 [inline]
 #3: 000000003c89e8f9 (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5019 [inline]
 #3: 000000003c89e8f9 (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5203 [inline]
 #3: 000000003c89e8f9 (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5311 [inline]
 #3: 000000003c89e8f9 (&port_dev->status_lock){+.+.}, at: hub_event+0x1cbf/0x43e0 drivers/usb/core/hub.c:5391
vhci_hcd: connection closed
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
 #4: 0000000013c15515 (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1b9/0x2fa0 drivers/usb/core/hub.c:4528
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd: stop threads
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: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
5 locks held by kworker/0:0/8119:
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: 00000000f1e28483 ((wq_completion)"usb_hub_wq"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2123
 #1: 000000007c7d5ac6 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2127
 #2: 000000008ce5d2dc (&dev->mutex){....}, at: device_lock include/linux/device.h:1173 [inline]
 #2: 000000008ce5d2dc (&dev->mutex){....}, at: hub_event+0x11e/0x43e0 drivers/usb/core/hub.c:5337
 #3: 00000000be4a7bb6 (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2977 [inline]
 #3: 00000000be4a7bb6 (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5019 [inline]
 #3: 00000000be4a7bb6 (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5203 [inline]
 #3: 00000000be4a7bb6 (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5311 [inline]
 #3: 00000000be4a7bb6 (&port_dev->status_lock){+.+.}, at: hub_event+0x1cbf/0x43e0 drivers/usb/core/hub.c:5391
 #4: 00000000e6325782 (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1b9/0x2fa0 drivers/usb/core/hub.c:4528
5 locks held by kworker/0:3/8151:
 #0: 00000000f1e28483 ((wq_completion)"usb_hub_wq"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2123
 #1: 00000000ba2150e8 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2127
 #2: 00000000adb82d79 (&dev->mutex){....}, at: device_lock include/linux/device.h:1173 [inline]
 #2: 00000000adb82d79 (&dev->mutex){....}, at: hub_event+0x11e/0x43e0 drivers/usb/core/hub.c:5337
 #3: 00000000157a00e2 (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2977 [inline]
 #3: 00000000157a00e2 (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5019 [inline]
 #3: 00000000157a00e2 (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5203 [inline]
 #3: 00000000157a00e2 (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5311 [inline]
 #3: 00000000157a00e2 (&port_dev->status_lock){+.+.}, at: hub_event+0x1cbf/0x43e0 drivers/usb/core/hub.c:5391
 #4: 00000000abd72bc9 (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1b9/0x2fa0 drivers/usb/core/hub.c:4528
5 locks held by kworker/1:2/8166:
 #0: 00000000f1e28483 ((wq_completion)"usb_hub_wq"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2123
 #1: 000000009a4b0f4d ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2127
 #2: 00000000aed16925 (&dev->mutex){....}, at: device_lock include/linux/device.h:1173 [inline]
 #2: 00000000aed16925 (&dev->mutex){....}, at: hub_event+0x11e/0x43e0 drivers/usb/core/hub.c:5337
 #3: 000000000b768b8b (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2977 [inline]
 #3: 000000000b768b8b (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5019 [inline]
 #3: 000000000b768b8b (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5203 [inline]
 #3: 000000000b768b8b (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5311 [inline]
 #3: 000000000b768b8b (&port_dev->status_lock){+.+.}, at: hub_event+0x1cbf/0x43e0 drivers/usb/core/hub.c:5391
 #4: 0000000042367567 (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1b9/0x2fa0 drivers/usb/core/hub.c:4528
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3)
9 locks held by syz-executor547/5289:
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: port 0 already used
4 locks held by syz-executor547/5295:
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: Device attached
 #0: 000000008334dd09 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1824 [inline]
 #0: 000000008334dd09 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
vhci_hcd vhci_hcd.0: port 0 already used
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
vhci_hcd vhci_hcd.0: port 0 already used
 #2: 00000000626dd4a6 (&sig->wait_chldexit){....}, at: __wake_up_common_lock+0xb0/0x170 kernel/sched/wait.c:120
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3)
 #3: 000000000c88b67e (&obj_hash[i].lock){-.-.}, at: debug_object_activate+0x12f/0x450 lib/debugobjects.c:472
4 locks held by syz-executor547/5312:
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
7 locks held by syz-executor547/5313:
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
4 locks held by syz-executor547/5324:
vhci_hcd vhci_hcd.0: port 0 already used
7 locks held by syz-executor547/5325:
vhci_hcd vhci_hcd.0: port 0 already used
7 locks held by syz-executor547/5326:
vhci_hcd: release socket
4 locks held by syz-executor547/5333:
vhci_hcd: connection closed
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline]
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548
vhci_hcd: stop threads
 #1: 00000000211cc54f (&of->mutex){+.+.}, at: kernfs_fop_write+0x200/0x470 fs/kernfs/file.c:307
vhci_hcd: release socket
 #2: 00000000c8c5827a (kn->count#70){.+.+}, at: kernfs_fop_write+0x223/0x470 fs/kernfs/file.c:308
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(1) speed_str(low-speed)
 #3: 00000000b0c41e35 (&vdev->ud.sysfs_lock){+.+.}, at: attach_store+0x2e4/0xb30 drivers/usb/usbip/vhci_sysfs.c:357
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
4 locks held by syz-executor547/5343:
vhci_hcd vhci_hcd.0: port 0 already used
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline]
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548
vhci_hcd vhci_hcd.0: Device attached
 #1: 00000000ec0b67de (&of->mutex){+.+.}, at: kernfs_fop_write+0x200/0x470 fs/kernfs/file.c:307
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3)
vhci_hcd: connection closed
 #2: 
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: Device attached
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
00000000cd3aa2d2 (&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: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 #3: 00000000816334f2 (&(&zone->span_seqlock)->seqcount){...-}, at: __free_one_page mm/page_alloc.c:820 [inline]
 #3: 00000000816334f2 (&(&zone->span_seqlock)->seqcount){...-}, at: free_one_page+0x12b/0x1080 mm/page_alloc.c:1201
vhci_hcd vhci_hcd.0: port 0 already used
4 locks held by syz-executor547/5373:
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
7 locks held by syz-executor547/5403:
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3)
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: Device attached
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
 #0: 000000006cffece9 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1824 [inline]
 #0: 000000006cffece9 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3)
 #2: 000000001ee3f835 (&sig->wait_chldexit){....}, at: __wake_up_common_lock+0xb0/0x170 kernel/sched/wait.c:120
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: Device attached
 #3: 000000006f7ad561 (rcu_read_lock){....}, at: lock_page_memcg+0x0/0x220 include/linux/page_counter.h:64
vhci_hcd vhci_hcd.0: port 0 already used
 #4: 00000000c1dea4dd (&(&zone->lock)->rlock){..-.}, at: spin_lock include/linux/spinlock.h:329 [inline]
 #4: 00000000c1dea4dd (&(&zone->lock)->rlock){..-.}, at: free_one_page+0x31/0x1080 mm/page_alloc.c:1196
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 #5: 00000000816334f2 (&(&zone->span_seqlock)->seqcount){...-}, at: __free_one_page mm/page_alloc.c:820 [inline]
 #5: 00000000816334f2 (&(&zone->span_seqlock)->seqcount){...-}, at: free_one_page+0x12b/0x1080 mm/page_alloc.c:1201
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3)
 #6: 0000000097b3f32b (&obj_hash[i].lock){-.-.}, at: debug_object_activate+0x12f/0x450 lib/debugobjects.c:472
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: Device attached
7 locks held by syz-executor547/5427:
vhci_hcd vhci_hcd.0: port 0 already used
4 locks held by syz-executor547/5451:
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: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
 #0: 000000006cffece9 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1824 [inline]
 #0: 000000006cffece9 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3)
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
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
 #2: 000000001ee3f835 (&sig->wait_chldexit){....}, at: __wake_up_common_lock+0xb0/0x170 kernel/sched/wait.c:120
vhci_hcd vhci_hcd.0: port 0 already used
 #3: 000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
 #3: 000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
vhci_hcd vhci_hcd.0: Device attached
7 locks held by syz-executor547/5462:
vhci_hcd vhci_hcd.0: port 0 already used
4 locks held by syz-executor547/5472:
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
7 locks held by syz-executor547/5488:
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3)
4 locks held by syz-executor547/5492:
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd: release socket
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline]
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548
vhci_hcd vhci_hcd.0: Device attached
 #1: 00000000ff4dfa0f (&of->mutex){+.+.}, at: kernfs_fop_write+0x200/0x470 fs/kernfs/file.c:307
vhci_hcd vhci_hcd.0: port 0 already used
 #2: 00000000c8c5827a (kn->count#70){.+.+}, at: kernfs_fop_write+0x223/0x470 fs/kernfs/file.c:308
vhci_hcd vhci_hcd.0: port 0 already used
 #3: 00000000268e8c67 (&vdev->ud.sysfs_lock){+.+.}, at: attach_store+0x2e4/0xb30 drivers/usb/usbip/vhci_sysfs.c:357
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
4 locks held by syz-executor547/5493:
vhci_hcd: connection closed
vhci_hcd: stop threads
 #0: 000000008334dd09 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1824 [inline]
 #0: 000000008334dd09 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
vhci_hcd: release socket
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3)
 #2: 00000000626dd4a6 (&sig->wait_chldexit){....}, at: __wake_up_common_lock+0xb0/0x170 kernel/sched/wait.c:120
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
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(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd vhci_hcd.0: port 0 already used
 #3: 000000000c88b67e (&obj_hash[i].lock){-.-.}, at: debug_object_activate+0x12f/0x450 lib/debugobjects.c:472
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd: connection closed
vhci_hcd: stop threads
4 locks held by syz-executor547/5507:
vhci_hcd: release socket
4 locks held by syz-executor547/5509:
vhci_hcd: disconnect device
4 locks held by syz-executor547/5510:
vhci_hcd: stop threads
 #0: 000000006cffece9 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1824 [inline]
 #0: 000000006cffece9 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
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(0) rhport(0) sockfd(3)
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd vhci_hcd.0: port 0 already used
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 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 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
 #2: 
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: Device attached
00000000626dd4a6 (&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: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
 #3: 000000006f7ad561 (rcu_read_lock){....}, at: lock_page_memcg+0x0/0x220 include/linux/page_counter.h:64
vhci_hcd vhci_hcd.0: port 0 already used
4 locks held by syz-executor547/5556:
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(4) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
4 locks held by syz-executor547/5568:
vhci_hcd: disconnect device
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline]
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548
vhci_hcd vhci_hcd.0: Device attached
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
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 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: stop threads
 #2: 00000000040d22d9 (&sig->wait_chldexit){....}, at: __wake_up_common_lock+0xb0/0x170 kernel/sched/wait.c:120
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3)
 #3: 000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
 #3: 000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd: disconnect device
4 locks held by syz-executor547/5572:
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: Device attached
4 locks held by syz-executor547/5589:
vhci_hcd vhci_hcd.0: port 0 already used
7 locks held by syz-executor547/5593:
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
4 locks held by syz-executor547/5595:
vhci_hcd: release socket
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline]
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548
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(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: port 0 already used
 #1: 00000000d31cc182 (&of->mutex){+.+.}, at: kernfs_fop_write+0x200/0x470 fs/kernfs/file.c:307
vhci_hcd: disconnect device
 #2: 00000000c8c5827a (kn->count#70){.+.+}, at: kernfs_fop_write+0x223/0x470 fs/kernfs/file.c:308
vhci_hcd vhci_hcd.0: Device attached
 #3: 000000002d6768e2 (&vdev->ud.sysfs_lock){+.+.}, at: attach_store+0x2e4/0xb30 drivers/usb/usbip/vhci_sysfs.c:357
vhci_hcd vhci_hcd.0: port 0 already used
4 locks held by syz-executor547/5597:
vhci_hcd vhci_hcd.0: port 0 already used
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline]
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
 #1: 000000007d6d627d (&of->mutex){+.+.}, at: kernfs_fop_write+0x200/0x470 fs/kernfs/file.c:307
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3)
 #2: 00000000c8c5827a (kn->count#70){.+.+}, at: kernfs_fop_write+0x223/0x470 fs/kernfs/file.c:308
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd: release socket
 #3: 00000000b4d7ea67 (&vdev->ud.sysfs_lock){+.+.}, at: attach_store+0x2e4/0xb30 drivers/usb/usbip/vhci_sysfs.c:357
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd vhci_hcd.0: port 0 already used
4 locks held by syz-executor547/5621:
vhci_hcd vhci_hcd.0: port 0 already used
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline]
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548
vhci_hcd: disconnect device
vhci_hcd: connection closed
 #1: 
vhci_hcd vhci_hcd.0: port 0 already used
00000000a8db6216 (&of->mutex){+.+.}, at: kernfs_fop_write+0x200/0x470 fs/kernfs/file.c:307
vhci_hcd vhci_hcd.0: port 0 already used
 #2: 00000000c8c5827a (kn->count#70){.+.+}, at: kernfs_fop_write+0x223/0x470 fs/kernfs/file.c:308
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 #3: 00000000268e8c67 (&vdev->ud.sysfs_lock){+.+.}, at: attach_store+0x2e4/0xb30 drivers/usb/usbip/vhci_sysfs.c:357
vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3)
4 locks held by syz-executor547/5638:
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd: release socket
4 locks held by syz-executor547/5640:
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline]
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548
vhci_hcd: disconnect device
 #1: 00000000f3de42fa (&of->mutex){+.+.}, at: kernfs_fop_write+0x200/0x470 fs/kernfs/file.c:307
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: pdev(3) rhport(0) sockfd(3)
 #2: 00000000c8c5827a (kn->count#70){.+.+}, at: kernfs_fop_write+0x223/0x470 fs/kernfs/file.c:308
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
 #3: 000000002634142f (&vdev->ud.sysfs_lock){+.+.}, at: attach_store+0x2e4/0xb30 drivers/usb/usbip/vhci_sysfs.c:357
vhci_hcd: stop threads
4 locks held by syz-executor547/5658:
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
 #0: 000000008334dd09 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1824 [inline]
 #0: 000000008334dd09 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
vhci_hcd: release socket
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(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
 #2: 00000000766d7621 (&sig->wait_chldexit){....}, at: __wake_up_common_lock+0xb0/0x170 kernel/sched/wait.c:120
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd: disconnect device
vhci_hcd: connection closed
 #3: 
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 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 vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3)
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: Device attached
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
4 locks held by syz-executor547/5690:
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
 #0: 000000008334dd09 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1824 [inline]
 #0: 000000008334dd09 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3)
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 vhci_hcd.0: Device attached
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
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
 #2: 000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
 #2: 000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
vhci_hcd vhci_hcd.0: port 0 already used
 #3: 00000000b282ed7f (&p->pi_lock){-.-.}, at: try_to_wake_up+0x7b/0x1050 kernel/sched/core.c:1961
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd: release socket
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3)
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: Device attached
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd: release socket
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
4 locks held by syz-executor547/5737:
4 locks held by syz-executor547/5767:
vhci_hcd vhci_hcd.0: port 0 already used
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline]
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
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(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
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: port 0 already used
 #1: 00000000ecc3fd7c (&of->mutex){+.+.}, at: kernfs_fop_write+0x200/0x470 fs/kernfs/file.c:307
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: Device attached
 #2: 00000000c8c5827a (kn->count#70){.+.+}, at: kernfs_fop_write+0x223/0x470 fs/kernfs/file.c:308
vhci_hcd vhci_hcd.0: port 0 already used
 #3: 00000000268e8c67 (&vdev->ud.sysfs_lock){+.+.}, at: attach_store+0x2e4/0xb30 drivers/usb/usbip/vhci_sysfs.c:357
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3)
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: devid(0) speed(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: disconnect device
4 locks held by syz-executor547/5799:
vhci_hcd vhci_hcd.0: port 0 already used
4 locks held by syz-executor547/5815:
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: Device attached
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline]
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd: connection closed
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 #1: 000000003cb4b159 (&of->mutex){+.+.}, at: kernfs_fop_write+0x200/0x470 fs/kernfs/file.c:307
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3)
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
 #2: 00000000c8c5827a (kn->count
vhci_hcd vhci_hcd.0: port 0 already used
#70){.+.+}, at: expand mm/page_alloc.c:1828 [inline]
#70){.+.+}, at: __rmqueue_smallest mm/page_alloc.c:1988 [inline]
#70){.+.+}, at: __rmqueue mm/page_alloc.c:2475 [inline]
#70){.+.+}, at: rmqueue mm/page_alloc.c:3034 [inline]
#70){.+.+}, at: get_page_from_freelist+0x19a1/0x4170 mm/page_alloc.c:3373
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3)
 #3: 00000000d2bc62b8 (&p->pi_lock){-.-.}, at: try_to_wake_up+0x7b/0x1050 kernel/sched/core.c:1961
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
4 locks held by syz-executor547/5834:
vhci_hcd: stop threads
4 locks held by syz-executor547/5848:
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: Device attached
4 locks held by syz-executor547/5873:
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
4 locks held by syz-executor547/5879:
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3)
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline]
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
 #1: 00000000fbfb465b (&of->mutex){+.+.}, at: kernfs_fop_write+0x200/0x470 fs/kernfs/file.c:307
vhci_hcd vhci_hcd.0: port 0 already used
 #2: 00000000c8c5827a (kn->count#70){.+.+}, at: kernfs_fop_write+0x223/0x470 fs/kernfs/file.c:308
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
 #3: 000000006f7ad561 (rcu_read_lock){....}, at: lock_page_memcg+0x0/0x220 include/linux/page_counter.h:64
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
4 locks held by syz-executor547/5882:
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3)
9 locks held by syz-executor547/5888:
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 vhci_hcd.0: Device attached
4 locks held by syz-executor547/5903:
vhci_hcd vhci_hcd.0: port 0 already used
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline]
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548
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: stop threads
 #1: 00000000cb2647dc (&of->mutex){+.+.}, at: kernfs_fop_write+0x200/0x470 fs/kernfs/file.c:307
vhci_hcd: release socket
 #2: 00000000c8c5827a (kn->count#70){.+.+}, at: kernfs_fop_write+0x223/0x470 fs/kernfs/file.c:308
vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3)
 #3: 00000000268e8c67 (&vdev->ud.sysfs_lock){+.+.}, at: attach_store+0x2e4/0xb30 drivers/usb/usbip/vhci_sysfs.c:357
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd: disconnect device
4 locks held by syz-executor547/5920:
vhci_hcd vhci_hcd.0: Device attached
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline]
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 #1: 0000000058db1a11 (&of->mutex){+.+.}, at: kernfs_fop_write+0x200/0x470 fs/kernfs/file.c:307
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 #2: 000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
 #2: 000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
vhci_hcd: connection closed
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
 #3: 000000006f7ad561 (rcu_read_lock){....}, at: lock_page_memcg+0x0/0x220 include/linux/page_counter.h:64
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(1) speed_str(low-speed)
9 locks held by syz-executor547/5924:
vhci_hcd: disconnect device
4 locks held by syz-executor547/5935:
vhci_hcd vhci_hcd.0: port 0 already used
4 locks held by syz-executor547/5940:
vhci_hcd: stop threads
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline]
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548
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
 #1: 000000000b5cc57f (&of->mutex){+.+.}, at: kernfs_fop_write+0x200/0x470 fs/kernfs/file.c:307
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd: connection closed
 #2: 
vhci_hcd vhci_hcd.0: port 0 already used
00000000c8c5827a (kn->count#70){.+.+}, at: kernfs_fop_write+0x223/0x470 fs/kernfs/file.c:308
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3)
 #3: 00000000b0c41e35 (&vdev->ud.sysfs_lock){+.+.}, at: attach_store+0x2e4/0xb30 drivers/usb/usbip/vhci_sysfs.c:357
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: Device attached
7 locks held by syz-executor547/5954:
vhci_hcd: stop threads
4 locks held by syz-executor547/5958:
vhci_hcd: connection closed
vhci_hcd: release socket
4 locks held by syz-executor547/5966:
vhci_hcd: connection closed
vhci_hcd: disconnect device
4 locks held by syz-executor547/5969:
vhci_hcd vhci_hcd.0: port 0 already used
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline]
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548
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
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 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: stop threads
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3)
 #2: 00000000040d22d9 (&sig->wait_chldexit){....}, at: __wake_up_common_lock+0xb0/0x170 kernel/sched/wait.c:120
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
 #3: 000000006f7ad561 (rcu_read_lock){....}, at: lock_page_memcg+0x0/0x220 include/linux/page_counter.h:64
vhci_hcd: disconnect device
4 locks held by syz-executor547/5972:
vhci_hcd: connection closed
 #0: 
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3)
vhci_hcd: stop threads
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: Device attached
vhci_hcd: release socket
000000008334dd09 (&rq->lock){-.-.}, at: idle_balance kernel/sched/fair.c:9701 [inline]
000000008334dd09 (&rq->lock){-.-.}, at: pick_next_task_fair+0x556/0x1570 kernel/sched/fair.c:6840
vhci_hcd vhci_hcd.0: port 0 already used
 #1: 000000008334dd09 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1824 [inline]
 #1: 000000008334dd09 (&rq->lock){-.-.}, at: attach_tasks kernel/sched/fair.c:7431 [inline]
 #1: 000000008334dd09 (&rq->lock){-.-.}, at: load_balance+0xa88/0x2080 kernel/sched/fair.c:8748
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
 #2: 000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
 #2: 000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 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 vhci_hcd.0: pdev(0) rhport(0) sockfd(3)
 #3: 00000000816334f2 (&(&zone->span_seqlock)->seqcount){...-}, at: __free_one_page mm/page_alloc.c:820 [inline]
 #3: 00000000816334f2 (&(&zone->span_seqlock)->seqcount){...-}, at: free_one_page+0x12b/0x1080 mm/page_alloc.c:1201
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: Device attached
7 locks held by syz-executor547/6007:
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
4 locks held by syz-executor547/6023:
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
 #0: 000000008334dd09 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1824 [inline]
 #0: 000000008334dd09 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
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: 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(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: Device attached
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 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: connection closed
 #2: 
vhci_hcd vhci_hcd.0: port 0 already used
00000000aefe2103 (&sig->wait_chldexit){....}, at: __wake_up_common_lock+0xb0/0x170 kernel/sched/wait.c:120
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(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd: disconnect device
vhci_hcd: connection closed
 #3: 000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
 #3: 000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
4 locks held by syz-executor547/6091:
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline]
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548
 #1: 0000000041e670cb (&of->mutex){+.+.}, at: kernfs_fop_write+0x200/0x470 fs/kernfs/file.c:307
 #2: 00000000c8c5827a (kn->count#70){.+.+}, at: kernfs_fop_write+0x223/0x470 fs/kernfs/file.c:308
vhci_hcd vhci_hcd.0: port 0 already used
 #3: 000000002d6768e2 (&vdev->ud.sysfs_lock){+.+.}, at: attach_store+0x2e4/0xb30 drivers/usb/usbip/vhci_sysfs.c:357
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
4 locks held by syz-executor547/6110:
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: port 0 already used
 #0: 000000008334dd09 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1824 [inline]
 #0: 000000008334dd09 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
vhci_hcd: connection closed
 #2: 
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(3) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: port 0 already used
00000000766d7621 (&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: stop threads
vhci_hcd vhci_hcd.0: Device attached
 #3: 000000006f7ad561 (rcu_read_lock){....}, at: lock_page_memcg+0x0/0x220 include/linux/page_counter.h:64
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd: disconnect device
4 locks held by syz-executor547/6143:
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3)
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
4 locks held by syz-executor547/6149:
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
 #0: 000000006cffece9 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1824 [inline]
 #0: 000000006cffece9 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
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 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: Device attached
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd: connection closed
 #2: 
vhci_hcd vhci_hcd.0: port 0 already used
00000000aefe2103 (&sig->wait_chldexit){....}, at: __wake_up_common_lock+0xb0/0x170 kernel/sched/wait.c:120
vhci_hcd: stop threads
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(5) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
 #3: 000000006f7ad561 (rcu_read_lock){....}, at: lock_page_memcg+0x0/0x220 include/linux/page_counter.h:64
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
4 locks held by syz-executor547/6183:
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(3)
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
 #0: 000000006cffece9 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1824 [inline]
 #0: 000000006cffece9 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: Device attached
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
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 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 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(2) rhport(0) sockfd(3)
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
 #2: 000000001ee3f835 (&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: Device attached
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3)
 #3: 000000006f7ad561 (rcu_read_lock){....}, at: lock_page_memcg+0x0/0x220 include/linux/page_counter.h:64
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
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
4 locks held by syz-executor547/6235:
vhci_hcd: connection closed
4 locks held by syz-executor547/6243:
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline]
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548
vhci_hcd: connection closed
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3)
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3)
 #1: 000000005feec5fd (&of->mutex){+.+.}, at: kernfs_fop_write+0x200/0x470 fs/kernfs/file.c:307
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 vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: Device attached
 #2: 00000000c8c5827a (kn->count#70){.+.+}, at: kernfs_fop_write+0x223/0x470 fs/kernfs/file.c:308
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
 #3: 
vhci_hcd vhci_hcd.0: port 0 already used
00000000816334f2 (&(&zone->span_seqlock)->seqcount){...-}, at: __free_one_page mm/page_alloc.c:820 [inline]
00000000816334f2 (&(&zone->span_seqlock)->seqcount){...-}, at: free_one_page+0x12b/0x1080 mm/page_alloc.c:1201
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(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
7 locks held by syz-executor547/6257:
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: 000000006cffece9 (&rq->lock){-.-.}, at: idle_balance kernel/sched/fair.c:9701 [inline]
 #0: 000000006cffece9 (&rq->lock){-.-.}, at: pick_next_task_fair+0x556/0x1570 kernel/sched/fair.c:6840
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: release socket
 #1: 000000006cffece9 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1824 [inline]
 #1: 000000006cffece9 (&rq->lock){-.-.}, at: attach_tasks kernel/sched/fair.c:7431 [inline]
 #1: 000000006cffece9 (&rq->lock){-.-.}, at: load_balance+0xa88/0x2080 kernel/sched/fair.c:8748
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: release socket
 #2: 000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
 #2: 000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 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: 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(1) rhport(0) sockfd(3)
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
 #3: 00000000816334f2 (&(&zone->span_seqlock)->seqcount){...-}, at: __free_one_page mm/page_alloc.c:820 [inline]
 #3: 00000000816334f2 (&(&zone->span_seqlock)->seqcount){...-}, at: free_one_page+0x12b/0x1080 mm/page_alloc.c:1201
vhci_hcd: release socket
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(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
 #4: 000000006cffece9 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1824 [inline]
 #4: 000000006cffece9 (&rq->lock){-.-.}, at: ttwu_queue kernel/sched/core.c:1841 [inline]
 #4: 000000006cffece9 (&rq->lock){-.-.}, at: try_to_wake_up+0x6d0/0x1050 kernel/sched/core.c:2052
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: Device attached
 #5: 00000000b1eb7ca1 (&cfs_rq->removed.lock){-.-.}, at: update_cfs_rq_load_avg kernel/sched/fair.c:3490 [inline]
 #5: 00000000b1eb7ca1 (&cfs_rq->removed.lock){-.-.}, at: update_load_avg kernel/sched/fair.c:3612 [inline]
 #5: 00000000b1eb7ca1 (&cfs_rq->removed.lock){-.-.}, at: enqueue_entity+0x8c1/0x3850 kernel/sched/fair.c:3974
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(3)
vhci_hcd: stop threads
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: Device attached
 #6: 000000005a8538c7 (console_owner_lock){....}, at: console_lock_spinning_disable_and_check kernel/printk/printk.c:1649 [inline]
 #6: 000000005a8538c7 (console_owner_lock){....}, at: console_unlock+0x9bd/0x1110 kernel/printk/printk.c:2463
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
4 locks held by syz-executor547/6336:
vhci_hcd vhci_hcd.0: port 0 already used
4 locks held by syz-executor547/6349:
vhci_hcd: connection closed
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 #0: 000000006cffece9 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1824 [inline]
 #0: 000000006cffece9 (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(3)
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: devid(0) speed(1) speed_str(low-speed)
vhci_hcd vhci_hcd.0: Device attached
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: trace_sched_stat_runtime include/trace/events/sched.h:428 [inline]
 #1: 000000006f7ad561 (rcu_read_lock){....}, at: update_curr+0x2c3/0x870 kernel/sched/fair.c:857
vhci_hcd vhci_hcd.0: pdev(0) rhport(0) sockfd(3)
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
 #2: 00000000766d7621 (&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: disconnect device
 #3: 000000006f7ad561 (rcu_read_lock){....}, at: lock_page_memcg+0x0/0x220 include/linux/page_counter.h:64
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: Device attached
7 locks held by syz-executor547/6368:
vhci_hcd vhci_hcd.0: port 0 already used
4 locks held by syz-executor547/6384:
vhci_hcd: stop threads
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: file_start_write include/linux/fs.h:2779 [inline]
 #0: 0000000026b32283 (sb_writers#5){.+.+}, at: vfs_write+0x463/0x540 fs/read_write.c:548
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(1) speed_str(low-speed)
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: Device attached
 #1: 00000000d903f476 (&of->mutex){+.+.}, at: kernfs_fop_write+0x200/0x470 fs/kernfs/file.c:307
vhci_hcd: disconnect device
 #2: 00000000c8c5827a (kn->count#70){.+.+}, at: kernfs_fop_write+0x223/0x470 fs/kernfs/file.c:308
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

Crashes (4279):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/04/15 22:32 linux-4.19.y 0f1b4cb77d7f c59079a6 .config console log report syz C ci2-linux-4-19 INFO: task hung in hub_port_init
2021/02/19 03:58 linux-4.19.y 811218eceeaa 14052202 .config console log report syz C ci2-linux-4-19 INFO: task hung in hub_port_init
2021/02/15 15:14 linux-4.19.y 811218eceeaa 98682e5e .config console log report syz C ci2-linux-4-19 INFO: task hung in hub_port_init
2021/02/11 03:43 linux-4.19.y 811218eceeaa a52ee10a .config console log report syz C ci2-linux-4-19 INFO: task hung in hub_port_init
2021/02/03 10:55 linux-4.19.y 811218eceeaa 624dad51 .config console log report syz C ci2-linux-4-19 INFO: task hung in hub_port_init
2021/01/15 00:04 linux-4.19.y 675cc038067f 468dbb55 .config console log report syz C ci2-linux-4-19
2021/01/07 20:52 linux-4.19.y 4143d798313f c104d4a3 .config console log report syz C ci2-linux-4-19
2021/01/06 06:23 linux-4.19.y 3207316b3bee b1c228e1 .config console log report syz C ci2-linux-4-19
2021/01/04 15:40 linux-4.19.y 3207316b3bee 79264ae3 .config console log report syz C ci2-linux-4-19
2021/01/01 20:20 linux-4.19.y 3207316b3bee 79264ae3 .config console log report syz C ci2-linux-4-19
2020/12/23 17:25 linux-4.19.y 13d2ce42de8c c2c1d1dd .config console log report syz C ci2-linux-4-19
2020/12/21 07:13 linux-4.19.y 13d2ce42de8c 04201c06 .config console log report syz C ci2-linux-4-19
2020/12/18 03:40 linux-4.19.y 13d2ce42de8c 04201c06 .config console log report syz C ci2-linux-4-19
2020/12/17 06:45 linux-4.19.y 13d2ce42de8c 04201c06 .config console log report syz C ci2-linux-4-19
2020/12/11 21:12 linux-4.19.y 13d2ce42de8c ba24ffcd .config console log report syz C ci2-linux-4-19
2020/12/05 05:42 linux-4.19.y daefdc9eb24b 20366b87 .config console log report syz C ci2-linux-4-19
2020/11/14 04:05 linux-4.19.y 31acccdc8774 1bf9a662 .config console log report syz C ci2-linux-4-19
2020/11/06 04:19 linux-4.19.y b94de4d19498 cba33199 .config console log report syz C ci2-linux-4-19
2020/11/05 07:08 linux-4.19.y f5d8eef067ac cba33199 .config console log report syz C ci2-linux-4-19
2020/11/04 21:48 linux-4.19.y f5d8eef067ac cba33199 .config console log report syz C ci2-linux-4-19
2020/11/03 20:55 linux-4.19.y f5d8eef067ac cba33199 .config console log report syz C ci2-linux-4-19
2020/11/03 19:26 linux-4.19.y f5d8eef067ac cba33199 .config console log report syz C ci2-linux-4-19
2020/11/02 18:54 linux-4.19.y f5d8eef067ac 8bc4594f .config console log report syz C ci2-linux-4-19
2020/11/02 13:41 linux-4.19.y f5d8eef067ac 8bc4594f .config console log report syz C ci2-linux-4-19
2020/11/02 08:19 linux-4.19.y f5d8eef067ac 8bc4594f .config console log report syz C ci2-linux-4-19
2020/11/02 03:06 linux-4.19.y f5d8eef067ac 8bc4594f .config console log report syz C ci2-linux-4-19
2020/11/01 20:35 linux-4.19.y f5d8eef067ac 8bc4594f .config console log report syz C ci2-linux-4-19
2020/11/01 07:14 linux-4.19.y f5d8eef067ac 8bc4594f .config console log report syz C ci2-linux-4-19
2020/11/01 06:15 linux-4.19.y f5d8eef067ac 8bc4594f .config console log report syz C ci2-linux-4-19
2020/11/01 05:02 linux-4.19.y f5d8eef067ac 8bc4594f .config console log report syz C ci2-linux-4-19
2020/10/31 15:43 linux-4.19.y f5d8eef067ac 8bc4594f .config console log report syz C ci2-linux-4-19
2020/10/31 08:41 linux-4.19.y f5d8eef067ac 18e33098 .config console log report syz C ci2-linux-4-19
2020/10/03 15:37 linux-4.19.y b09c34517e1a 2653fa43 .config console log report syz C ci2-linux-4-19
2021/02/18 04:15 linux-4.19.y 811218eceeaa 14052202 .config console log report syz ci2-linux-4-19 INFO: task hung in hub_port_init
2021/01/04 08:35 linux-4.19.y 3207316b3bee 79264ae3 .config console log report syz ci2-linux-4-19
2020/12/20 11:01 linux-4.19.y 13d2ce42de8c 04201c06 .config console log report syz ci2-linux-4-19
2020/12/17 03:03 linux-4.19.y 13d2ce42de8c 04201c06 .config console log report syz ci2-linux-4-19
2020/11/27 22:12 linux-4.19.y 0c88e405c97e 486f93ef .config console log report syz ci2-linux-4-19
2020/11/05 18:33 linux-4.19.y b94de4d19498 cba33199 .config console log report syz ci2-linux-4-19
2020/11/05 03:56 linux-4.19.y f5d8eef067ac cba33199 .config console log report syz ci2-linux-4-19
2020/11/01 08:13 linux-4.19.y f5d8eef067ac 8bc4594f .config console log report syz ci2-linux-4-19
2023/02/28 19:52 linux-4.19.y 3f8a27f9e27b 95aee97a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2023/02/25 23:29 linux-4.19.y 3f8a27f9e27b ee50e71c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2023/02/22 12:22 linux-4.19.y 3f8a27f9e27b 42a4d508 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2023/02/19 03:51 linux-4.19.y 3f8a27f9e27b bcdf85f8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2023/02/10 21:43 linux-4.19.y 3f8a27f9e27b e29a17f5 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2023/02/09 10:15 linux-4.19.y 3f8a27f9e27b 14a312c8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2023/02/07 23:12 linux-4.19.y 3f8a27f9e27b 15c3d445 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2023/02/07 14:23 linux-4.19.y 3f8a27f9e27b 5bc3be51 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2023/02/05 13:26 linux-4.19.y 3f8a27f9e27b be607b78 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2023/02/03 17:33 linux-4.19.y 3f8a27f9e27b 1b2f701a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2023/02/02 22:00 linux-4.19.y 3f8a27f9e27b 16d19e30 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2023/02/02 17:14 linux-4.19.y 3f8a27f9e27b 16d19e30 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2023/01/30 04:19 linux-4.19.y 3f8a27f9e27b 9dfcf09c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2023/01/28 19:08 linux-4.19.y 3f8a27f9e27b 9dfcf09c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2023/01/19 16:02 linux-4.19.y 3f8a27f9e27b 66fca3ae .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2023/01/19 02:36 linux-4.19.y 3f8a27f9e27b 4620c2d9 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2023/01/13 17:04 linux-4.19.y 3f8a27f9e27b 529798b0 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2023/01/02 07:09 linux-4.19.y 3f8a27f9e27b ab32d508 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/12/30 15:09 linux-4.19.y 3f8a27f9e27b 44712fbc .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/12/27 04:23 linux-4.19.y 3f8a27f9e27b 9da18ae8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/12/17 11:22 linux-4.19.y 3f8a27f9e27b 05494336 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/12/14 12:39 linux-4.19.y 3f8a27f9e27b f6511626 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/12/11 22:43 linux-4.19.y 3f8a27f9e27b 67be1ae7 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/12/09 07:09 linux-4.19.y 3f8a27f9e27b 1034e5fa .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/12/07 13:33 linux-4.19.y 3f8a27f9e27b d88f3abb .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/11/29 02:20 linux-4.19.y 3f8a27f9e27b ca9683b8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/11/26 14:06 linux-4.19.y 3f8a27f9e27b f4470a7b .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/11/26 12:55 linux-4.19.y 3f8a27f9e27b f4470a7b .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/11/20 02:00 linux-4.19.y 3f8a27f9e27b 5bb70014 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/11/19 17:32 linux-4.19.y 3f8a27f9e27b 5bb70014 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/11/17 11:58 linux-4.19.y 3f8a27f9e27b 3a127a31 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/11/14 07:13 linux-4.19.y 3f8a27f9e27b 7ba4d859 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/11/10 14:06 linux-4.19.y 3f8a27f9e27b b2488a87 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/11/09 11:24 linux-4.19.y 3f8a27f9e27b 5fa28208 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/11/08 23:09 linux-4.19.y 3f8a27f9e27b 060f945e .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/11/08 10:12 linux-4.19.y 3f8a27f9e27b 6feb842b .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/10/30 12:18 linux-4.19.y 3f8a27f9e27b 2a71366b .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/10/28 01:12 linux-4.19.y 3f8a27f9e27b 5c716ff6 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/10/24 12:09 linux-4.19.y 3f8a27f9e27b faae2fda .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/10/21 22:20 linux-4.19.y 3f8a27f9e27b 63e790dd .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/10/19 01:36 linux-4.19.y 3f8a27f9e27b b31320fc .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/10/15 23:47 linux-4.19.y 3f8a27f9e27b 67cb024c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/10/11 21:16 linux-4.19.y 3f8a27f9e27b 02b6492e .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/10/05 17:13 linux-4.19.y 3f8a27f9e27b 267e3bb1 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/09/30 02:54 linux-4.19.y 3f8a27f9e27b 45fd7169 .config console log report info ci2-linux-4-19 INFO: task hung in hub_port_init
2022/09/29 00:30 linux-4.19.y 3f8a27f9e27b a41a2080 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/09/24 12:38 linux-4.19.y 3f8a27f9e27b 0042f2b4 .config console log report info ci2-linux-4-19 INFO: task hung in hub_port_init
2022/09/20 11:24 linux-4.19.y 3f8a27f9e27b 7c41a9ba .config console log report info ci2-linux-4-19 INFO: task hung in hub_port_init
2022/09/19 23:12 linux-4.19.y 3f8a27f9e27b dd9a85ff .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2022/09/19 14:38 linux-4.19.y 3f8a27f9e27b dd9a85ff .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: task hung in hub_port_init
2021/01/17 09:15 linux-4.19.y 675cc038067f 65a7a854 .config console log report info ci2-linux-4-19
2020/10/03 09:24 linux-4.19.y b09c34517e1a 2653fa43 .config console log report info ci2-linux-4-19
* Struck through repros no longer work on HEAD.