INFO: task hung in usb_register

INFO: task hung in usb_register_dev
Status: upstream: reported on 2020/07/06 15:12
Reported-by: syzbot+e761775e8f4a28711f19@syzkaller.appspotmail.com
First crash: 638d, last: 1d12h

Sample crash report:

INFO: task kworker/0:5:7739 blocked for more than 143 seconds.
      Not tainted 5.12.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:5     state:D stack:18320 pid: 7739 ppid:     2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
 context_switch kernel/sched/core.c:4339 [inline]
 __schedule+0x920/0x1f70 kernel/sched/core.c:5147
 schedule+0xcb/0x270 kernel/sched/core.c:5226
 rwsem_down_write_slowpath+0x917/0x11c0 kernel/locking/rwsem.c:1106
 __down_write_common kernel/locking/rwsem.c:1261 [inline]
 __down_write_common kernel/locking/rwsem.c:1258 [inline]
 __down_write kernel/locking/rwsem.c:1270 [inline]
 down_write+0x137/0x150 kernel/locking/rwsem.c:1407
 usb_register_dev drivers/usb/core/file.c:187 [inline]
 usb_register_dev+0x19d/0x7e0 drivers/usb/core/file.c:156
 sisusb_probe+0x21c/0xbe3 drivers/usb/misc/sisusbvga/sisusb.c:3038
 usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:396
 really_probe+0x291/0xf60 drivers/base/dd.c:576
 driver_probe_device+0x298/0x410 drivers/base/dd.c:763
 __device_attach_driver+0x203/0x2c0 drivers/base/dd.c:870
 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431
 __device_attach+0x228/0x4b0 drivers/base/dd.c:938
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491
 device_add+0xbe0/0x2100 drivers/base/core.c:3319
 usb_set_configuration+0x113f/0x1910 drivers/usb/core/message.c:2164
 usb_generic_driver_probe+0xba/0x100 drivers/usb/core/generic.c:238
 usb_probe_device+0xd9/0x2c0 drivers/usb/core/driver.c:293
 really_probe+0x291/0xf60 drivers/base/dd.c:576
 driver_probe_device+0x298/0x410 drivers/base/dd.c:763
 __device_attach_driver+0x203/0x2c0 drivers/base/dd.c:870
 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431
 __device_attach+0x228/0x4b0 drivers/base/dd.c:938
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491
 device_add+0xbe0/0x2100 drivers/base/core.c:3319
 usb_new_device.cold+0x721/0x1058 drivers/usb/core/hub.c:2556
 hub_port_connect drivers/usb/core/hub.c:5276 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5416 [inline]
 port_event drivers/usb/core/hub.c:5562 [inline]
 hub_event+0x2357/0x4330 drivers/usb/core/hub.c:5644
 process_one_work+0x98d/0x1580 kernel/workqueue.c:2275
 process_scheduled_works kernel/workqueue.c:2337 [inline]
 worker_thread+0x82b/0x1120 kernel/workqueue.c:2423
 kthread+0x38c/0x460 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Showing all locks held in the system:
6 locks held by kworker/1:0/17:
 #0: ffff888109ef5538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888109ef5538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
 #0: ffff888109ef5538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
 #0: ffff888109ef5538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline]
 #0: ffff888109ef5538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline]
 #0: ffff888109ef5538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x871/0x1580 kernel/workqueue.c:2246
 #1: ffffc9000012fda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1580 kernel/workqueue.c:2250
 #2: ffff88810f391220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:744 [inline]
 #2: ffff88810f391220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4330 drivers/usb/core/hub.c:5590
 #3: ffff88813e0f4220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:744 [inline]
 #3: ffff88813e0f4220 (&dev->mutex){....}-{3:3}, at: usb_disconnect.cold+0x43/0x791 drivers/usb/core/hub.c:2210
 #4: ffff8881180141a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:744 [inline]
 #4: ffff8881180141a8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1001 [inline]
 #4: ffff8881180141a8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal drivers/base/dd.c:1209 [inline]
 #4: ffff8881180141a8 (&dev->mutex){....}-{3:3}, at: device_release_driver+0x1c/0x40 drivers/base/dd.c:1235
 #5: ffffffff88365fb0 (minor_rwsem){++++}-{3:3}, at: usb_deregister_dev+0xaa/0x320 drivers/usb/core/file.c:239
1 lock held by khungtaskd/1268:
 #0: ffffffff87a7cea0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x269 kernel/locking/lockdep.c:6333
1 lock held by in:imklog/4280:
 #0: ffff8881051e0870 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:974
2 locks held by agetty/4281:
 #0: ffff888116adb098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:267
 #1: ffffc900004fb2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xd5b/0x12f0 drivers/tty/n_tty.c:2179
2 locks held by agetty/4285:
 #0: ffff888117222098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:267
 #1: ffffc9000053b2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xd5b/0x12f0 drivers/tty/n_tty.c:2179
6 locks held by kworker/0:5/7739:
 #0: ffff888109ef5538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888109ef5538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
 #0: ffff888109ef5538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
 #0: ffff888109ef5538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline]
 #0: ffff888109ef5538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline]
 #0: ffff888109ef5538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x871/0x1580 kernel/workqueue.c:2246
 #1: ffffc9000674fda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1580 kernel/workqueue.c:2250
 #2: ffff88810f238220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:744 [inline]
 #2: ffff88810f238220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4330 drivers/usb/core/hub.c:5590
 #3: ffff88814070f220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:744 [inline]
 #3: ffff88814070f220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4b0 drivers/base/dd.c:913
 #4: ffff8881156ab1a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:744 [inline]
 #4: ffff8881156ab1a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4b0 drivers/base/dd.c:913
 #5: ffffffff88365fb0 (minor_rwsem){++++}-{3:3}, at: usb_register_dev drivers/usb/core/file.c:187 [inline]
 #5: ffffffff88365fb0 (minor_rwsem){++++}-{3:3}, at: usb_register_dev+0x19d/0x7e0 drivers/usb/core/file.c:156
6 locks held by kworker/1:7/9138:
 #0: ffff888109ef5538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888109ef5538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline]
 #0: ffff888109ef5538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline]
 #0: ffff888109ef5538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline]
 #0: ffff888109ef5538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline]
 #0: ffff888109ef5538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x871/0x1580 kernel/workqueue.c:2246
 #1: ffffc90012a47da8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1580 kernel/workqueue.c:2250
 #2: ffff88810f2b9220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:744 [inline]
 #2: ffff88810f2b9220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4330 drivers/usb/core/hub.c:5590
 #3: ffff8881499e6220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:744 [inline]
 #3: ffff8881499e6220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4b0 drivers/base/dd.c:913
 #4: ffff88813e5121a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:744 [inline]
 #4: ffff88813e5121a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4b0 drivers/base/dd.c:913
 #5: ffffffff88365fb0 (minor_rwsem){++++}-{3:3}, at: usb_register_dev drivers/usb/core/file.c:187 [inline]
 #5: ffffffff88365fb0 (minor_rwsem){++++}-{3:3}, at: usb_register_dev+0x19d/0x7e0 drivers/usb/core/file.c:156
2 locks held by syz-executor.4/3258:
 #0: ffffffff88365fb0 (minor_rwsem){++++}-{3:3}, at: usb_open+0x24/0x2e0 drivers/usb/core/file.c:39
 #1: ffff88813c2d30d0 (&(sisusb->lock)){+.+.}-{3:3}, at: sisusb_open+0xb2/0x4d0 drivers/usb/misc/sisusbvga/sisusb.c:2396
1 lock held by syz-executor.2/3870:
 #0: ffffffff88365fb0 (minor_rwsem){++++}-{3:3}, at: usb_open+0x24/0x2e0 drivers/usb/core/file.c:39

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

NMI backtrace for cpu 1
CPU: 1 PID: 1268 Comm: khungtaskd Not tainted 5.12.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x143/0x1db lib/dump_stack.c:120
 nmi_cpu_backtrace.cold+0x46/0xe0 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x1da/0x200 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:209 [inline]
 watchdog+0xd32/0xf70 kernel/hung_task.c:294
 kthread+0x38c/0x460 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline]
NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt drivers/acpi/processor_idle.c:108 [inline]
NMI backtrace for cpu 0 skipped: idling at acpi_idle_do_entry+0x1c9/0x250 drivers/acpi/processor_idle.c:513

Crashes (373):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	VM info	Title
ci2-upstream-usb	2021/05/09 06:20	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	31a85035	bc5434be	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/05/07 01:21	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	8404c9fb	06585184	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/05/06 01:50	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	d665ea6e	06c27ff5	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/05/04 07:17	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	4a0225c3	09efdd63	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/05/03 03:13	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	4a0225c3	77e2b668	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/05/02 13:24	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	4a0225c3	77e2b668	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/05/01 09:50	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	4a0225c3	77e2b668	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/05/01 06:41	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	4a0225c3	77e2b668	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/26 18:30	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	caa93d9b	805b5003	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/26 13:27	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	caa93d9b	805b5003	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/26 00:50	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	caa93d9b	2a82f1b3	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/25 15:14	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	caa93d9b	36c88236	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/23 04:01	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3343f376	590921a5	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/22 07:42	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	4b853c23	2bc8999a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/21 17:05	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	4b853c23	95777977	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/19 17:47	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	4b853c23	50f523d7	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/18 19:33	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	4b853c23	7e2b734b	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/18 15:41	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	4b853c23	7e2b734b	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/16 19:39	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	4b853c23	7e2b734b	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/14 19:43	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	401411bb	3134b37f	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/14 01:49	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	401411bb	a184b83e	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/13 20:57	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	401411bb	a184b83e	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/13 06:58	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	9bc46a12	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/13 04:03	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	9bc46a12	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/12 18:00	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	14d34d2d	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/12 07:49	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	14d34d2d	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/11 23:32	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3db53374	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/11 15:25	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3db53374	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/11 05:12	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3db53374	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/11 04:00	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	3db53374	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/10 03:40	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	49696027	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/09 11:26	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	e9fcb077	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/07 18:56	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	e9fcb077	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/07 03:26	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	e9fcb077	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/06 22:57	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	e9fcb077	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/06 00:17	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	f70d436f	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/04 14:31	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	bee1f89a	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/03 23:01	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	bee1f89a	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/03 19:21	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	bee1f89a	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/03 09:44	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	bee1f89a	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/02 19:37	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	04dd6e76	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/02 09:05	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	e5242861	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/04/01 01:31	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	e5242861	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/03/31 21:48	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	e5242861	6a81331a	.config	log	report	info	INFO: task hung in usb_register_dev
ci2-upstream-usb	2021/01/09 09:27	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	841081d8	c104d4a3	.config	log	report	info
ci2-upstream-usb	2020/07/05 22:27	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	768a0741	22f87567	.config	log	report
ci2-upstream-usb	2019/08/11 10:21	https://github.com/google/kasan.git usb-fuzzer	e96407b4	acb51638	.config	log	report