syzbot


INFO: task hung in usb_get_descriptor

Status: upstream: reported C repro on 2020/10/03 17:33
Reported-by: syzbot+b914983de17f6ba4c7b4@syzkaller.appspotmail.com
First crash: 1354d, last: 816d
Fix bisection: failed (error log, bisect log)
  
Similar bugs (5)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in usb_get_descriptor (2) usb C inconclusive 862 97d 545d 0/27 upstream: reported C repro on 2022/12/22 05:53
upstream INFO: task hung in usb_get_descriptor C done done 4149 830d 1352d 20/27 fixed on 2022/05/13 11:13
linux-4.19 INFO: task hung in usb_get_descriptor C error 1055 474d 1354d 0/1 upstream: reported C repro on 2020/10/03 12:49
linux-5.15 INFO: task hung in usb_get_descriptor origin:upstream C error 41 343d 441d 0/3 upstream: reported C repro on 2023/04/04 12:58
linux-6.1 INFO: task hung in usb_get_descriptor origin:upstream C error 6 55d 445d 0/3 upstream: reported C repro on 2023/03/31 13:11
Last patch testing requests (10)
Created Duration User Patch Repo Result
2023/02/17 01:32 14m retest repro linux-4.14.y report log
2023/02/17 00:32 9m retest repro linux-4.14.y report log
2023/02/16 22:32 12m retest repro linux-4.14.y report log
2023/02/16 21:32 9m retest repro linux-4.14.y report log
2023/02/16 20:32 10m retest repro linux-4.14.y report log
2023/02/16 19:32 9m retest repro linux-4.14.y report log
2023/02/16 18:32 9m retest repro linux-4.14.y report log
2023/02/16 17:32 9m retest repro linux-4.14.y report log
2023/02/16 16:32 9m retest repro linux-4.14.y report log
2023/02/16 15:32 12m retest repro linux-4.14.y report log
Fix bisection attempts (11)
Created Duration User Patch Repo Result
2022/04/25 00:29 20m bisect fix linux-4.14.y error job log (0)
2022/03/25 22:51 38m bisect fix linux-4.14.y job log (0) log
2022/02/23 21:24 35m bisect fix linux-4.14.y job log (0) log
2022/01/24 20:48 35m bisect fix linux-4.14.y job log (0) log
2021/12/11 17:05 37m bisect fix linux-4.14.y job log (0) log
2021/11/11 15:58 30m bisect fix linux-4.14.y job log (0) log
2021/10/12 15:17 37m bisect fix linux-4.14.y job log (0) log
2021/09/12 10:34 29m bisect fix linux-4.14.y job log (0) log
2021/08/13 10:01 33m bisect fix linux-4.14.y job log (0) log
2021/07/14 09:33 27m bisect fix linux-4.14.y job log (0) log
2021/06/14 09:01 32m bisect fix linux-4.14.y job log (0) log

Sample crash report:
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
INFO: task kworker/1:2:4311 blocked for more than 140 seconds.
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
      Not tainted 4.14.218-syzkaller #0
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
kworker/1:2     D
vhci_hcd vhci_hcd.0: port 0 already used
26824  4311      2 0x80000000
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(4)
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
Workqueue: usb_hub_wq hub_event
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
Call Trace:
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(4)
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 context_switch syzkaller/managers/linux-4-14/kernel/kernel/sched/core.c:2808 [inline]
 __schedule+0x88b/0x1de0 syzkaller/managers/linux-4-14/kernel/kernel/sched/core.c:3384
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(4)
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 schedule+0x8d/0x1b0 syzkaller/managers/linux-4-14/kernel/kernel/sched/core.c:3428
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
 usb_kill_urb.part.0+0x125/0x190 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/urb.c:691
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd 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
 usb_kill_urb+0x7c/0x90 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/urb.c:686
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
 usb_start_wait_urb+0x209/0x440 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:62
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
 usb_internal_control_msg syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:100 [inline]
 usb_control_msg+0x302/0x450 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:151
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(4)
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 usb_get_descriptor+0xc0/0x160 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:652
vhci_hcd vhci_hcd.0: port 0 already used
 usb_get_device_descriptor+0x71/0xd0 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:924
vhci_hcd vhci_hcd.0: port 0 already used
 hub_port_init+0x629/0x2970 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:4647
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 hub_port_connect syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:4905 [inline]
 hub_port_connect_change syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5088 [inline]
 port_event syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5194 [inline]
 hub_event+0x18fd/0x3d70 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5274
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-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: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 process_one_work+0x793/0x14a0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2116
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: pdev(4) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd: release socket
 worker_thread+0x5cc/0xff0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2250
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd: disconnect device
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 kthread+0x30d/0x420 syzkaller/managers/linux-4-14/kernel/kernel/kthread.c:232
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: connection closed
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 ret_from_fork+0x24/0x30 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/entry_64.S:404
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
INFO: task kworker/0:1:7972 blocked for more than 140 seconds.
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd 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
      Not tainted 4.14.218-syzkaller #0
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
kworker/0:1     D
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
28544  7972      2 0x80000000
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: 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: pdev(4) rhport(0) sockfd(4)
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 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
Call Trace:
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
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
 context_switch syzkaller/managers/linux-4-14/kernel/kernel/sched/core.c:2808 [inline]
 __schedule+0x88b/0x1de0 syzkaller/managers/linux-4-14/kernel/kernel/sched/core.c:3384
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd 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: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd 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 syzkaller/managers/linux-4-14/kernel/kernel/sched/core.c:3428
 usb_kill_urb.part.0+0x125/0x190 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/urb.c:691
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(4)
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
 usb_kill_urb+0x7c/0x90 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/urb.c:686
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: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
 usb_start_wait_urb+0x209/0x440 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:62
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: pdev(4) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: 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: port 0 already used
vhci_hcd: connection closed
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 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(1) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd: 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: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
 usb_internal_control_msg syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:100 [inline]
 usb_control_msg+0x302/0x450 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:151
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(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
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 vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(4)
 usb_get_descriptor+0xc0/0x160 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:652
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
 usb_get_device_descriptor+0x71/0xd0 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:924
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
 hub_port_init+0x629/0x2970 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:4647
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 hub_port_connect syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:4905 [inline]
 hub_port_connect_change syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5088 [inline]
 port_event syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5194 [inline]
 hub_event+0x18fd/0x3d70 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5274
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(4)
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 process_one_work+0x793/0x14a0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2116
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: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 process_scheduled_works syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2176 [inline]
 worker_thread+0x7d3/0xff0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2252
 kthread+0x30d/0x420 syzkaller/managers/linux-4-14/kernel/kernel/kthread.c:232
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
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
 ret_from_fork+0x24/0x30 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/entry_64.S:404
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
INFO: task kworker/1:0:8001 blocked for more than 140 seconds.
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
      Not tainted 4.14.218-syzkaller #0
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
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/1:0     D27968  8001      2 0x80000000
Workqueue: usb_hub_wq hub_event
Call Trace:
 context_switch syzkaller/managers/linux-4-14/kernel/kernel/sched/core.c:2808 [inline]
 __schedule+0x88b/0x1de0 syzkaller/managers/linux-4-14/kernel/kernel/sched/core.c:3384
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 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(2) rhport(0) sockfd(4)
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd: connection closed
 schedule+0x8d/0x1b0 syzkaller/managers/linux-4-14/kernel/kernel/sched/core.c:3428
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 usb_kill_urb.part.0+0x125/0x190 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/urb.c:691
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 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 vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
 usb_kill_urb+0x7c/0x90 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/urb.c:686
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
 usb_start_wait_urb+0x209/0x440 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:62
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(3) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: 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
 usb_internal_control_msg syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:100 [inline]
 usb_control_msg+0x302/0x450 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:151
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
 usb_get_descriptor+0xc0/0x160 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:652
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(4)
 usb_get_device_descriptor+0x71/0xd0 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:924
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
 hub_port_init+0x629/0x2970 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:4647
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 hub_port_connect syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:4905 [inline]
 hub_port_connect_change syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5088 [inline]
 port_event syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5194 [inline]
 hub_event+0x18fd/0x3d70 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5274
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
 process_one_work+0x793/0x14a0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2116
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 process_scheduled_works syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2176 [inline]
 worker_thread+0x7d3/0xff0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2252
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd 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
 kthread+0x30d/0x420 syzkaller/managers/linux-4-14/kernel/kernel/kthread.c:232
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: stop threads
 ret_from_fork+0x24/0x30 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/entry_64.S:404
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
INFO: task kworker/1:3:8005 blocked for more than 140 seconds.
vhci_hcd vhci_hcd.0: port 0 already used
      Not tainted 4.14.218-syzkaller #0
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
"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: stop threads
kworker/1:3     D
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
28152  8005      2 0x80000000
vhci_hcd: release socket
vhci_hcd: disconnect device
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 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
Workqueue: usb_hub_wq hub_event
Call Trace:
 context_switch syzkaller/managers/linux-4-14/kernel/kernel/sched/core.c:2808 [inline]
 __schedule+0x88b/0x1de0 syzkaller/managers/linux-4-14/kernel/kernel/sched/core.c:3384
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(2) rhport(0) sockfd(4)
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
 schedule+0x8d/0x1b0 syzkaller/managers/linux-4-14/kernel/kernel/sched/core.c:3428
vhci_hcd vhci_hcd.0: port 0 already used
 usb_kill_urb.part.0+0x125/0x190 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/urb.c:691
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd: release socket
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(4)
 usb_kill_urb+0x7c/0x90 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/urb.c:686
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
 usb_start_wait_urb+0x209/0x440 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:62
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 usb_internal_control_msg syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:100 [inline]
 usb_control_msg+0x302/0x450 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:151
 usb_get_descriptor+0xc0/0x160 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:652
 usb_get_device_descriptor+0x71/0xd0 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:924
 hub_port_init+0x629/0x2970 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:4647
vhci_hcd: disconnect device
vhci_hcd: connection closed
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(4)
 hub_port_connect syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:4905 [inline]
 hub_port_connect_change syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5088 [inline]
 port_event syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5194 [inline]
 hub_event+0x18fd/0x3d70 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5274
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd 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
 process_one_work+0x793/0x14a0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2116
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(4)
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: 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
 worker_thread+0x5cc/0xff0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2250
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
 kthread+0x30d/0x420 syzkaller/managers/linux-4-14/kernel/kernel/kthread.c:232
vhci_hcd: connection closed
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd 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
 ret_from_fork+0x24/0x30 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/entry_64.S:404
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(4)
INFO: task kworker/1:4:8009 blocked for more than 140 seconds.
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
      Not tainted 4.14.218-syzkaller #0
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
kworker/1:4     D28568  8009      2 0x80000000
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
Workqueue: usb_hub_wq hub_event
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(4)
Call Trace:
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 context_switch syzkaller/managers/linux-4-14/kernel/kernel/sched/core.c:2808 [inline]
 __schedule+0x88b/0x1de0 syzkaller/managers/linux-4-14/kernel/kernel/sched/core.c:3384
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 vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 schedule+0x8d/0x1b0 syzkaller/managers/linux-4-14/kernel/kernel/sched/core.c:3428
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
 usb_kill_urb.part.0+0x125/0x190 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/urb.c:691
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
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: 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
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(4)
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(4)
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
 usb_kill_urb+0x7c/0x90 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/urb.c:686
vhci_hcd: release socket
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
 usb_start_wait_urb+0x209/0x440 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:62
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd: stop threads
vhci_hcd: release socket
 usb_internal_control_msg syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:100 [inline]
 usb_control_msg+0x302/0x450 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:151
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 usb_get_descriptor+0xc0/0x160 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:652
vhci_hcd: disconnect device
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
 usb_get_device_descriptor+0x71/0xd0 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/message.c:924
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
 hub_port_init+0x629/0x2970 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:4647
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 hub_port_connect syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:4905 [inline]
 hub_port_connect_change syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5088 [inline]
 port_event syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5194 [inline]
 hub_event+0x18fd/0x3d70 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5274
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(4)
 process_one_work+0x793/0x14a0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2116
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd: stop threads
 worker_thread+0x5cc/0xff0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2250
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
 kthread+0x30d/0x420 syzkaller/managers/linux-4-14/kernel/kernel/kthread.c:232
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
 ret_from_fork+0x24/0x30 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/entry_64.S:404
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(4)
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)

Showing all locks held in the system:
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
1 lock held by khungtaskd/1530:
 #0:  (tasklist_lock){.+.+}, at: [<ffffffff86fedc17>] debug_show_all_locks+0x7c/0x21a syzkaller/managers/linux-4-14/kernel/kernel/locking/lockdep.c:4548
5 locks held by kworker/1:2/4311:
 #0:  ("usb_hub_wq"){+.+.}, at: [<ffffffff81363810>] process_one_work+0x6b0/0x14a0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2087
 #1:  ((&hub->events)){+.+.}, at: [<ffffffff81363846>] process_one_work+0x6e6/0x14a0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2091
 #2:  (&dev->mutex){....}, at: [<ffffffff84439398>] device_lock syzkaller/managers/linux-4-14/kernel/./include/linux/device.h:1081 [inline]
 #2:  (&dev->mutex){....}, at: [<ffffffff84439398>] hub_event+0x108/0x3d70 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5220
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] usb_lock_port syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:2934 [inline]
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] hub_port_connect syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:4904 [inline]
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] hub_port_connect_change syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5088 [inline]
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] port_event syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5194 [inline]
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] hub_event+0x18e8/0x3d70 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5274
 #4:  (hcd->address0_mutex){+.+.}, at: [<ffffffff8442ee9b>] hub_port_init+0x15b/0x2970 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:4429
5 locks held by kworker/0:1/7972:
 #0:  ("usb_hub_wq"){+.+.}, at: [<ffffffff81363810>] process_one_work+0x6b0/0x14a0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2087
 #1:  ((&hub->events)){+.+.}, at: [<ffffffff81363846>] process_one_work+0x6e6/0x14a0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2091
 #2:  (&dev->mutex){....}, at: [<ffffffff84439398>] device_lock syzkaller/managers/linux-4-14/kernel/./include/linux/device.h:1081 [inline]
 #2:  (&dev->mutex){....}, at: [<ffffffff84439398>] hub_event+0x108/0x3d70 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5220
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] usb_lock_port syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:2934 [inline]
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] hub_port_connect syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:4904 [inline]
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] hub_port_connect_change syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5088 [inline]
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] port_event syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5194 [inline]
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] hub_event+0x18e8/0x3d70 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5274
 #4:  (hcd->address0_mutex){+.+.}, at: [<ffffffff8442ee9b>] hub_port_init+0x15b/0x2970 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:4429
5 locks held by kworker/1:0/8001:
 #0:  ("usb_hub_wq"){+.+.}, at: [<ffffffff81363810>] process_one_work+0x6b0/0x14a0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2087
 #1:  ((&hub->events)){+.+.}, at: [<ffffffff81363846>] process_one_work+0x6e6/0x14a0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2091
 #2:  (&dev->mutex){....}, at: [<ffffffff84439398>] device_lock syzkaller/managers/linux-4-14/kernel/./include/linux/device.h:1081 [inline]
 #2:  (&dev->mutex){....}, at: [<ffffffff84439398>] hub_event+0x108/0x3d70 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5220
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] usb_lock_port syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:2934 [inline]
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] hub_port_connect syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:4904 [inline]
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] hub_port_connect_change syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5088 [inline]
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] port_event syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5194 [inline]
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] hub_event+0x18e8/0x3d70 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5274
 #4:  (hcd->address0_mutex){+.+.}, at: [<ffffffff8442ee9b>] hub_port_init+0x15b/0x2970 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:4429
5 locks held by kworker/1:3/8005:
 #0:  ("usb_hub_wq"){+.+.}, at: [<ffffffff81363810>] process_one_work+0x6b0/0x14a0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2087
 #1:  ((&hub->events)){+.+.}, at: [<ffffffff81363846>] process_one_work+0x6e6/0x14a0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2091
 #2:  (&dev->mutex){....}, at: [<ffffffff84439398>] device_lock syzkaller/managers/linux-4-14/kernel/./include/linux/device.h:1081 [inline]
 #2:  (&dev->mutex){....}, at: [<ffffffff84439398>] hub_event+0x108/0x3d70 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5220
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] usb_lock_port syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:2934 [inline]
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] hub_port_connect syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:4904 [inline]
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] hub_port_connect_change syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5088 [inline]
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] port_event syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5194 [inline]
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] hub_event+0x18e8/0x3d70 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5274
 #4:  (hcd->address0_mutex){+.+.}, at: [<ffffffff8442ee9b>] hub_port_init+0x15b/0x2970 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:4429
5 locks held by kworker/1:4/8009:
 #0:  ("usb_hub_wq"){+.+.}, at: [<ffffffff81363810>] process_one_work+0x6b0/0x14a0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2087
 #1:  ((&hub->events)){+.+.}, at: [<ffffffff81363846>] process_one_work+0x6e6/0x14a0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2091
 #2:  (&dev->mutex){....}, at: [<ffffffff84439398>] device_lock syzkaller/managers/linux-4-14/kernel/./include/linux/device.h:1081 [inline]
 #2:  (&dev->mutex){....}, at: [<ffffffff84439398>] hub_event+0x108/0x3d70 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5220
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] usb_lock_port syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:2934 [inline]
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] hub_port_connect syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:4904 [inline]
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] hub_port_connect_change syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5088 [inline]
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] port_event syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5194 [inline]
 #3:  (&port_dev->status_lock){+.+.}, at: [<ffffffff8443ab78>] hub_event+0x18e8/0x3d70 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:5274
 #4:  (hcd->address0_mutex){+.+.}, at: [<ffffffff8442ee9b>] hub_port_init+0x15b/0x2970 syzkaller/managers/linux-4-14/kernel/drivers/usb/core/hub.c:4429
3 locks held by syz-executor485/2165:
 #0:  (sb_writers#5){.+.+}, at: [<ffffffff81869f18>] file_start_write syzkaller/managers/linux-4-14/kernel/./include/linux/fs.h:2712 [inline]
 #0:  (sb_writers#5){.+.+}, at: [<ffffffff81869f18>] vfs_write+0x3d8/0x4d0 syzkaller/managers/linux-4-14/kernel/fs/read_write.c:543
 #1:  (&of->mutex){+.+.}, at: [<ffffffff81a320b9>] kernfs_fop_write+0x1d9/0x440 syzkaller/managers/linux-4-14/kernel/fs/kernfs/file.c:307
 #2:  (kn->count#71){.+.+}, at: [<ffffffff81a320dc>] kernfs_fop_write+0x1fc/0x440 syzkaller/managers/linux-4-14/kernel/fs/kernfs/file.c:308

=============================================

vhci_hcd: release socket
vhci_hcd: connection closed
vhci_hcd: disconnect device
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-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: port 0 already used
vhci_hcd: connection closed
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: 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(4) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: pdev(3) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
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
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
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(2) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: pdev(1) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd: disconnect device
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd: connection closed
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: pdev(5) rhport(0) sockfd(4)
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd 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: 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(3) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: stop threads
vhci_hcd vhci_hcd.0: pdev(4) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: release socket
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd: disconnect device
vhci_hcd: connection closed
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
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(2) rhport(0) sockfd(4)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: devid(0) speed(5) speed_str(super-speed)
vhci_hcd vhci_hcd.0: port 0 already used
vhci_hcd vhci_hcd.0: port 0 already used
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: connection closed
vhci_hcd: release socket
NMI backtrace for cpu 0
CPU: 0 PID: 1530 Comm: khungtaskd Not tainted 4.14.218-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 syzkaller/managers/linux-4-14/kernel/lib/dump_stack.c:58
 nmi_cpu_backtrace.cold+0x57/0x93 syzkaller/managers/linux-4-14/kernel/lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x13a/0x180 syzkaller/managers/linux-4-14/kernel/lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace syzkaller/managers/linux-4-14/kernel/./include/linux/nmi.h:140 [inline]
 check_hung_uninterruptible_tasks syzkaller/managers/linux-4-14/kernel/kernel/hung_task.c:195 [inline]
 watchdog+0x5b9/0xb40 syzkaller/managers/linux-4-14/kernel/kernel/hung_task.c:274
 kthread+0x30d/0x420 syzkaller/managers/linux-4-14/kernel/kernel/kthread.c:232
 ret_from_fork+0x24/0x30 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/entry_64.S:404
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 7973 Comm: kworker/u4:0 Not tainted 4.14.218-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usbip_event event_handler
task: ffff88809572c3c0 task.stack: ffff8880b30e0000
RIP: 0010:__debug_check_no_obj_freed syzkaller/managers/linux-4-14/kernel/lib/debugobjects.c:741 [inline]
RIP: 0010:debug_check_no_obj_freed+0x17e/0x680 syzkaller/managers/linux-4-14/kernel/lib/debugobjects.c:776
RSP: 0018:ffff8880ba507c90 EFLAGS: 00000002
RAX: ffff8880ae73aab8 RBX: dffffc0000000000 RCX: ffff88808f8e3000
RDX: 0000000000000002 RSI: ffff8880ba507d18 RDI: ffff8880ae9354b0
RBP: ffffffff8c00f8c8 R08: 1ffff11015827322 R09: 0000000000000282
R10: ffff88809572cce8 R11: ffff88809572c3c0 R12: ffff8880ba507d38
R13: ffff8882382437d8 R14: ffff88808f8e2000 R15: ffff8880ae935498
FS:  0000000000000000(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004b1290 CR3: 00000000b4d9f000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 free_pages_prepare syzkaller/managers/linux-4-14/kernel/mm/page_alloc.c:1064 [inline]
 free_pcp_prepare syzkaller/managers/linux-4-14/kernel/mm/page_alloc.c:1078 [inline]
 free_hot_cold_page+0x224/0xc80 syzkaller/managers/linux-4-14/kernel/mm/page_alloc.c:2615
 __put_single_page syzkaller/managers/linux-4-14/kernel/mm/swap.c:79 [inline]
 __put_page+0xa5/0x2f0 syzkaller/managers/linux-4-14/kernel/mm/swap.c:113
 put_page syzkaller/managers/linux-4-14/kernel/./include/linux/mm.h:875 [inline]
 free_page_and_swap_cache+0x2bc/0x3b0 syzkaller/managers/linux-4-14/kernel/mm/swap_state.c:308
 __tlb_remove_table syzkaller/managers/linux-4-14/kernel/./arch/x86/include/asm/tlb.h:30 [inline]
 tlb_remove_table_rcu+0x78/0xc0 syzkaller/managers/linux-4-14/kernel/mm/memory.c:387
 __rcu_reclaim syzkaller/managers/linux-4-14/kernel/kernel/rcu/rcu.h:195 [inline]
 rcu_do_batch syzkaller/managers/linux-4-14/kernel/kernel/rcu/tree.c:2699 [inline]
 invoke_rcu_callbacks syzkaller/managers/linux-4-14/kernel/kernel/rcu/tree.c:2962 [inline]
 __rcu_process_callbacks syzkaller/managers/linux-4-14/kernel/kernel/rcu/tree.c:2929 [inline]
 rcu_process_callbacks+0x780/0x1180 syzkaller/managers/linux-4-14/kernel/kernel/rcu/tree.c:2946
 __do_softirq+0x24d/0x9ff syzkaller/managers/linux-4-14/kernel/kernel/softirq.c:288
 invoke_softirq syzkaller/managers/linux-4-14/kernel/kernel/softirq.c:368 [inline]
 irq_exit+0x193/0x240 syzkaller/managers/linux-4-14/kernel/kernel/softirq.c:409
 exiting_irq syzkaller/managers/linux-4-14/kernel/./arch/x86/include/asm/apic.h:648 [inline]
 smp_apic_timer_interrupt+0x141/0x5e0 syzkaller/managers/linux-4-14/kernel/arch/x86/kernel/apic/apic.c:1102
 apic_timer_interrupt+0x93/0xa0 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/entry_64.S:793
 </IRQ>
RIP: 0010:arch_local_irq_restore syzkaller/managers/linux-4-14/kernel/./arch/x86/include/asm/paravirt.h:779 [inline]
RIP: 0010:console_unlock+0xbeb/0xf20 syzkaller/managers/linux-4-14/kernel/kernel/printk/printk.c:2408
RSP: 0018:ffff8880b30e7ae0 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff10
RAX: ffff88809572c3c0 RBX: 0000000000000200 RCX: 1ffff11012ae5997
RDX: 0000000000000000 RSI: ffff88809572cc98 RDI: 0000000000000297
RBP: 0000000000000000 R08: ffffffff8b98fb80 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff83d081d0
R13: ffffffff8961db10 R14: dffffc0000000000 R15: 000000000000002b
 vprintk_emit+0x224/0x620 syzkaller/managers/linux-4-14/kernel/kernel/printk/printk.c:1923
 vprintk_func+0x58/0x160 syzkaller/managers/linux-4-14/kernel/kernel/printk/printk_safe.c:401
 printk+0x9e/0xbc syzkaller/managers/linux-4-14/kernel/kernel/printk/printk.c:1996
 vhci_shutdown_connection.cold+0xfb/0x840 syzkaller/managers/linux-4-14/kernel/drivers/usb/usbip/vhci_hcd.c:1048
 event_handler+0x1c3/0x4a0 syzkaller/managers/linux-4-14/kernel/drivers/usb/usbip/usbip_event.c:92
 process_one_work+0x793/0x14a0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2116
 worker_thread+0x5cc/0xff0 syzkaller/managers/linux-4-14/kernel/kernel/workqueue.c:2250
 kthread+0x30d/0x420 syzkaller/managers/linux-4-14/kernel/kernel/kthread.c:232
 ret_from_fork+0x24/0x30 syzkaller/managers/linux-4-14/kernel/arch/x86/entry/entry_64.S:404
Code: fe 02 00 00 48 8b 4c 24 20 49 8d 74 24 e0 4c 89 f8 31 d2 48 c1 e8 03 80 3c 18 00 0f 85 ff 00 00 00 49 8d 7f 18 83 c2 01 49 8b 07 <49> 89 f8 49 c1 e8 03 41 80 3c 18 00 0f 85 d9 02 00 00 4d 8b 6f 

Crashes (1317):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/02/18 07:15 linux-4.14.y 2c8a3fceddf0 14052202 .config console log report syz C ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2020/12/24 12:24 linux-4.14.y 3f2ecb86cb90 c2c1d1dd .config console log report syz C ci2-linux-4-14
2020/12/24 00:51 linux-4.14.y 3f2ecb86cb90 c2c1d1dd .config console log report syz C ci2-linux-4-14
2020/12/22 13:56 linux-4.14.y 3f2ecb86cb90 04201c06 .config console log report syz C ci2-linux-4-14
2020/11/24 01:18 linux-4.14.y 0df445b0f0da 878fb17a .config console log report syz C ci2-linux-4-14
2020/10/27 07:25 linux-4.14.y 5b7a52cd2eef 8b3eaf58 .config console log report syz C ci2-linux-4-14
2020/10/24 02:27 linux-4.14.y 5b7a52cd2eef 2bb6666c .config console log report syz C ci2-linux-4-14
2020/10/22 06:57 linux-4.14.y 5b7a52cd2eef be6b1582 .config console log report syz C ci2-linux-4-14
2020/10/21 06:53 linux-4.14.y cbfa1702aaf6 ff4a3345 .config console log report syz C ci2-linux-4-14
2020/10/20 14:37 linux-4.14.y cbfa1702aaf6 ff4a3345 .config console log report syz C ci2-linux-4-14
2020/10/20 04:14 linux-4.14.y cbfa1702aaf6 ff4a3345 .config console log report syz C ci2-linux-4-14
2020/10/20 00:56 linux-4.14.y cbfa1702aaf6 ff4a3345 .config console log report syz C ci2-linux-4-14
2020/10/19 21:39 linux-4.14.y cbfa1702aaf6 ff4a3345 .config console log report syz C ci2-linux-4-14
2020/10/19 17:26 linux-4.14.y cbfa1702aaf6 ff4a3345 .config console log report syz C ci2-linux-4-14
2020/10/19 00:36 linux-4.14.y cbfa1702aaf6 fea47c01 .config console log report syz C ci2-linux-4-14
2020/10/18 17:02 linux-4.14.y cbfa1702aaf6 fea47c01 .config console log report syz C ci2-linux-4-14
2020/10/16 11:02 linux-4.14.y cbfa1702aaf6 6e262c73 .config console log report syz C ci2-linux-4-14
2020/10/15 18:58 linux-4.14.y cbfa1702aaf6 63869021 .config console log report syz C ci2-linux-4-14
2020/10/15 02:58 linux-4.14.y cbfa1702aaf6 fc7735a2 .config console log report syz C ci2-linux-4-14
2020/11/26 10:28 linux-4.14.y 87335852c5d9 2f1cec62 .config console log report syz ci2-linux-4-14
2020/11/17 16:39 linux-4.14.y 27ce4f2a6817 bd2a760b .config console log report syz ci2-linux-4-14
2020/10/26 00:34 linux-4.14.y 5b7a52cd2eef a1839e81 .config console log report syz ci2-linux-4-14
2020/10/24 03:36 linux-4.14.y 5b7a52cd2eef 2bb6666c .config console log report syz ci2-linux-4-14
2020/10/20 06:32 linux-4.14.y cbfa1702aaf6 ff4a3345 .config console log report syz ci2-linux-4-14
2021/12/25 17:43 linux-4.14.y 8ee0807eedf3 6caa12e4 .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/12/25 09:12 linux-4.14.y 8ee0807eedf3 6caa12e4 .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/12/15 12:14 linux-4.14.y 9dfbac0e6b86 f752fb53 .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/12/14 19:55 linux-4.14.y 9dfbac0e6b86 d018dd31 .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/05/15 09:01 linux-4.14.y 7d7d1c0ab3eb 8bdd5343 .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/05/13 05:13 linux-4.14.y 7d7d1c0ab3eb ed7d41c5 .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/05/10 18:27 linux-4.14.y 7d7d1c0ab3eb ca873091 .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/05/03 07:11 linux-4.14.y 7d7d1c0ab3eb 77e2b668 .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/04/28 22:10 linux-4.14.y 7d7d1c0ab3eb 77e2b668 .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/04/12 07:09 linux-4.14.y 958e517f4e16 6a81331a .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/04/11 01:23 linux-4.14.y 958e517f4e16 6a81331a .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/23 09:18 linux-4.14.y cb83ddcd5332 8092f30d .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/17 15:44 linux-4.14.y c7150cd2fa8c fdb2bb2c .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/17 03:34 linux-4.14.y c7150cd2fa8c fdb2bb2c .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/17 00:54 linux-4.14.y c7150cd2fa8c fdb2bb2c .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/16 23:23 linux-4.14.y c7150cd2fa8c fdb2bb2c .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/16 19:56 linux-4.14.y c7150cd2fa8c fdb2bb2c .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/16 14:31 linux-4.14.y c7150cd2fa8c fdb2bb2c .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/16 08:26 linux-4.14.y c7150cd2fa8c fdb2bb2c .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/16 06:18 linux-4.14.y c7150cd2fa8c fdb2bb2c .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/16 00:03 linux-4.14.y c7150cd2fa8c fdb2bb2c .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/15 20:51 linux-4.14.y c7150cd2fa8c fdb2bb2c .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/15 17:55 linux-4.14.y c7150cd2fa8c fdb2bb2c .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/15 14:09 linux-4.14.y c7150cd2fa8c cc1cff8f .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/15 07:36 linux-4.14.y c7150cd2fa8c cc1cff8f .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/15 02:12 linux-4.14.y c7150cd2fa8c cc1cff8f .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/14 18:49 linux-4.14.y c7150cd2fa8c 4a003785 .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/14 04:00 linux-4.14.y c7150cd2fa8c 4a003785 .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/14 02:33 linux-4.14.y c7150cd2fa8c 4a003785 .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/14 00:56 linux-4.14.y c7150cd2fa8c 4a003785 .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/13 20:33 linux-4.14.y c7150cd2fa8c 4a003785 .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/13 13:10 linux-4.14.y c7150cd2fa8c 4a003785 .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/13 10:00 linux-4.14.y c7150cd2fa8c 4a003785 .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/13 08:59 linux-4.14.y c7150cd2fa8c 4a003785 .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/13 02:46 linux-4.14.y c7150cd2fa8c 429d8a6b .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/12 15:33 linux-4.14.y c7150cd2fa8c 429d8a6b .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/12 13:39 linux-4.14.y c7150cd2fa8c 429d8a6b .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/12 12:30 linux-4.14.y c7150cd2fa8c 429d8a6b .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/12 10:43 linux-4.14.y c7150cd2fa8c 429d8a6b .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/12 03:42 linux-4.14.y c7150cd2fa8c 429d8a6b .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/12 01:52 linux-4.14.y c7150cd2fa8c 429d8a6b .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/11 23:05 linux-4.14.y c7150cd2fa8c 429d8a6b .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/11 20:37 linux-4.14.y c7150cd2fa8c c2ca1f2a .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/11 18:08 linux-4.14.y c7150cd2fa8c c2ca1f2a .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/11 12:05 linux-4.14.y 1d177c0872ab c2ca1f2a .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/11 10:34 linux-4.14.y 1d177c0872ab c2ca1f2a .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/11 09:24 linux-4.14.y 1d177c0872ab c2ca1f2a .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/03/11 05:57 linux-4.14.y 1d177c0872ab c2ca1f2a .config console log report info ci2-linux-4-14 INFO: task hung in usb_get_descriptor
2021/01/17 01:04 linux-4.14.y f79dc86058bc 65a7a854 .config console log report info ci2-linux-4-14
2020/10/03 17:32 linux-4.14.y cbfa1702aaf6 1a3f9408 .config console log report info ci2-linux-4-14
* Struck through repros no longer work on HEAD.