INFO: task hung in usb_deregister

INFO: task hung in usb_deregister_dev
Status: upstream: reported on 2020/07/06 15:22
Reported-by: syzbot+4189d5cde8630463053f@syzkaller.appspotmail.com
First crash: 800d, last: 5d07h

Sample crash report:

INFO: task kworker/1:4:5832 blocked for more than 143 seconds.
      Not tainted 5.15.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:4     state:D stack:18208 pid: 5832 ppid:     2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
 context_switch kernel/sched/core.c:4940 [inline]
 __schedule+0x947/0x22b0 kernel/sched/core.c:6287
 schedule+0xcf/0x270 kernel/sched/core.c:6366
 rwsem_down_write_slowpath+0x8e3/0x1190 kernel/locking/rwsem.c:1107
 __down_write_common kernel/locking/rwsem.c:1262 [inline]
 __down_write_common kernel/locking/rwsem.c:1259 [inline]
 __down_write kernel/locking/rwsem.c:1271 [inline]
 down_write+0x137/0x150 kernel/locking/rwsem.c:1518
 usb_deregister_dev+0xaa/0x320 drivers/usb/core/file.c:239
 sisusb_disconnect+0x5a/0x200 drivers/usb/misc/sisusbvga/sisusb.c:3166
 usb_unbind_interface+0x1d8/0x8d0 drivers/usb/core/driver.c:458
 __device_release_driver+0x5d7/0x700 drivers/base/dd.c:1205
 device_release_driver_internal drivers/base/dd.c:1236 [inline]
 device_release_driver+0x26/0x40 drivers/base/dd.c:1259
 bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:529
 device_del+0x502/0xd60 drivers/base/core.c:3582
 usb_disable_device+0x35b/0x7b0 drivers/usb/core/message.c:1419
 usb_disconnect.cold+0x27a/0x78e drivers/usb/core/hub.c:2225
 hub_port_connect drivers/usb/core/hub.c:5199 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5488 [inline]
 port_event drivers/usb/core/hub.c:5634 [inline]
 hub_event+0x1c9c/0x4330 drivers/usb/core/hub.c:5716
 process_one_work+0x9bf/0x1620 kernel/workqueue.c:2297
 process_scheduled_works kernel/workqueue.c:2360 [inline]
 worker_thread+0x85c/0x11f0 kernel/workqueue.c:2446
 kthread+0x3c2/0x4a0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

Showing all locks held in the system:
1 lock held by khungtaskd/24:
 #0: ffffffff87681fa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x269 kernel/locking/lockdep.c:6446
2 locks held by in:imklog/2812:
2 locks held by login/2819:
 #0: ffff888115cd2098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:252
 #1: ffff888115cd2130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: tty_write_lock drivers/tty/tty_io.c:961 [inline]
 #1: ffff888115cd2130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: do_tty_write drivers/tty/tty_io.c:984 [inline]
 #1: ffff888115cd2130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: file_tty_write.constprop.0+0x29f/0x910 drivers/tty/tty_io.c:1110
6 locks held by kworker/1:4/5832:
 #0: ffff8881039ec538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff8881039ec538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff8881039ec538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
 #0: ffff8881039ec538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:634 [inline]
 #0: ffff8881039ec538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:661 [inline]
 #0: ffff8881039ec538 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x8a3/0x1620 kernel/workqueue.c:2268
 #1: ffffc90003057db0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8d7/0x1620 kernel/workqueue.c:2272
 #2: ffff88810cda9220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
 #2: ffff88810cda9220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4330 drivers/usb/core/hub.c:5662
 #3: ffff888107f9c220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
 #3: ffff888107f9c220 (&dev->mutex){....}-{3:3}, at: usb_disconnect.cold+0x43/0x78e drivers/usb/core/hub.c:2216
 #4: ffff88813bce21a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
 #4: ffff88813bce21a8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1032 [inline]
 #4: ffff88813bce21a8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal drivers/base/dd.c:1233 [inline]
 #4: ffff88813bce21a8 (&dev->mutex){....}-{3:3}, at: device_release_driver+0x1c/0x40 drivers/base/dd.c:1259
 #5: ffffffff87f7ea70 (minor_rwsem){++++}-{3:3}, at: usb_deregister_dev+0xaa/0x320 drivers/usb/core/file.c:239
2 locks held by login/10282:
 #0: ffff888111577098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:252
 #1: ffff888111577130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: tty_write_lock drivers/tty/tty_io.c:961 [inline]
 #1: ffff888111577130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: do_tty_write drivers/tty/tty_io.c:984 [inline]
 #1: ffff888111577130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: file_tty_write.constprop.0+0x29f/0x910 drivers/tty/tty_io.c:1110
2 locks held by login/16376:
 #0: ffff888112d7d098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:252
 #1: ffff888112d7d130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: tty_write_lock drivers/tty/tty_io.c:961 [inline]
 #1: ffff888112d7d130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: do_tty_write drivers/tty/tty_io.c:984 [inline]
 #1: ffff888112d7d130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: file_tty_write.constprop.0+0x29f/0x910 drivers/tty/tty_io.c:1110
2 locks held by login/9463:
 #0: ffff88811835c098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:252
 #1: ffff88811835c130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: tty_write_lock drivers/tty/tty_io.c:961 [inline]
 #1: ffff88811835c130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: do_tty_write drivers/tty/tty_io.c:984 [inline]
 #1: ffff88811835c130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: file_tty_write.constprop.0+0x29f/0x910 drivers/tty/tty_io.c:1110
2 locks held by login/13184:
 #0: ffff8881182f5098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:252
 #1: ffff8881182f5130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: tty_write_lock drivers/tty/tty_io.c:961 [inline]
 #1: ffff8881182f5130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: do_tty_write drivers/tty/tty_io.c:984 [inline]
 #1: ffff8881182f5130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: file_tty_write.constprop.0+0x29f/0x910 drivers/tty/tty_io.c:1110
2 locks held by agetty/17978:
 #0: ffff888118902098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:252
 #1: ffffc900013232e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2113
2 locks held by syz-executor.4/25735:
 #0: ffffffff87f7ea70 (minor_rwsem){++++}-{3:3}, at: usb_open+0x24/0x2e0 drivers/usb/core/file.c:39
 #1: ffff8881102738d0 (&(sisusb->lock)){+.+.}-{3:3}, at: sisusb_open+0xb2/0x4d0 drivers/usb/misc/sisusbvga/sisusb.c:2396

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

NMI backtrace for cpu 1
CPU: 1 PID: 24 Comm: khungtaskd Not tainted 5.15.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x49/0x148 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x1d5/0x1f0 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
 watchdog+0xc0f/0xf20 kernel/hung_task.c:295
 kthread+0x3c2/0x4a0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 1156 Comm: systemd-journal Not tainted 5.15.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:lock_release+0x3d9/0x6e0 kernel/locking/lockdep.c:5633
Code: 7e 83 f8 01 0f 85 77 01 00 00 9c 58 f6 c4 02 0f 85 62 01 00 00 48 f7 04 24 00 02 00 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c5 48 c7 45 00 00 00 00 00 c7 45 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc90000977c68 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: ffffffffffffffff RCX: ffffc90000977cb8
RDX: 1ffff110226a0130 RSI: 0000000000000000 RDI: ffff888113500980
RBP: 1ffff9200012ef8f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000001 R14: ffff888113500988 R15: ffff888113500000
FS:  00007f667473d8c0(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6671ee2018 CR3: 000000011363d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __raw_spin_unlock include/linux/spinlock_api_smp.h:150 [inline]
 _raw_spin_unlock+0x12/0x30 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:403 [inline]
 alloc_fd+0x2f0/0x670 fs/file.c:524
 do_sys_openat2+0x134/0x4d0 fs/open.c:1198
 do_sys_open fs/open.c:1216 [inline]
 __do_sys_open fs/open.c:1224 [inline]
 __se_sys_open fs/open.c:1220 [inline]
 __x64_sys_open+0x119/0x1c0 fs/open.c:1220
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f6673ccc85d
Code: bb 20 00 00 75 10 b8 02 00 00 00 0f 05 48 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24 b8 02 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 67 f6 ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007ffc02b27ff0 EFLAGS: 00000293 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007ffc02b28300 RCX: 00007f6673ccc85d
RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 000055b72c3fa180
RBP: 000000000000000d R08: 000000000000ffc0 R09: 00000000ffffffff
R10: 0000000000000069 R11: 0000000000000293 R12: 00000000ffffffff
R13: 000055b72c3ed040 R14: 00007ffc02b282c0 R15: 000055b72c3f0e80
----------------
Code disassembly (best guess):
   0:	7e 83                	jle    0xffffff85
   2:	f8                   	clc
   3:	01 0f                	add    %ecx,(%rdi)
   5:	85 77 01             	test   %esi,0x1(%rdi)
   8:	00 00                	add    %al,(%rax)
   a:	9c                   	pushfq
   b:	58                   	pop    %rax
   c:	f6 c4 02             	test   $0x2,%ah
   f:	0f 85 62 01 00 00    	jne    0x177
  15:	48 f7 04 24 00 02 00 	testq  $0x200,(%rsp)
  1c:	00
  1d:	74 01                	je     0x20
  1f:	fb                   	sti
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df
* 2a:	48 01 c5             	add    %rax,%rbp <-- trapping instruction
  2d:	48 c7 45 00 00 00 00 	movq   $0x0,0x0(%rbp)
  34:	00
  35:	c7 45 08 00 00 00 00 	movl   $0x0,0x8(%rbp)
  3c:	48                   	rex.W
  3d:	8b                   	.byte 0x8b
  3e:	84                   	.byte 0x84
  3f:	24                   	.byte 0x24

Crashes (210):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	VM info	Title
ci2-upstream-usb	2021/10/13 21:44	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	e27bea459d5e	5462d470	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/10/08 09:35	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	2c52ad743fee	efe0f24d	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/10/08 03:58	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	2c52ad743fee	efe0f24d	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/10/07 23:37	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	2c52ad743fee	efe0f24d	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/10/06 02:59	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	89e84f946479	0a63fd36	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/10/04 23:17	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	ae9a6149884e	ce697b49	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/10/02 23:15	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	ae9a6149884e	db0f5787	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/10/01 05:36	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	ae9a6149884e	1d849ab4	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/09/30 19:02	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	ae9a6149884e	0f01403d	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/09/30 01:33	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	ae9a6149884e	be530f6c	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/09/29 07:13	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	ae9a6149884e	d82cb927	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/09/28 15:59	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	ae9a6149884e	d82cb927	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/09/28 00:43	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	ae9a6149884e	78494d16	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/09/27 01:25	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	8217f07a5023	78494d16	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/09/24 02:21	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	8217f07a5023	8cac236e	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/09/23 02:18	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	8217f07a5023	8cac236e	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/09/18 15:13	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	ae8709b296d8	70b76c1d	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/09/18 01:46	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	ae8709b296d8	70b76c1d	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/09/17 21:27	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	ae8709b296d8	70b76c1d	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/09/17 20:09	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	ae8709b296d8	70b76c1d	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/09/16 07:31	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	ae8709b296d8	07e953c1	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/09/15 07:48	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	ae8709b296d8	07e953c1	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/09/14 22:55	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	44a0f3bb69a3	07e953c1	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/09/08 23:02	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	4b93c544e90e	e2776ee4	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/09/05 09:17	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	1b4f3dfb4792	d236a457	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/09/02 12:19	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	1b4f3dfb4792	d0f0970b	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/09/01 02:46	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	9c1587d99f93	7eb7e152	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/08/29 04:51	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	9c1587d99f93	be2c130d	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/08/25 03:57	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	bfa109d761a4	b599f2fc	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/07/25 01:12	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	8e6cb5d27e82	4d1b57d4	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/07/24 15:23	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	8e6cb5d27e82	4d1b57d4	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/07/15 18:33	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	97db1b081e12	f115ae98	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/06/10 07:48	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	e89bb4288378	1ba81399	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/06/08 16:26	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	87191ca9f902	5c2fe346	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/06/03 04:05	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	5ff90af9da8f	0740de69	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/06/01 17:49	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	aa10fab0f859	032639db	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/06/01 15:46	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	aa10fab0f859	032639db	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/05/31 23:45	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	aa10fab0f859	032639db	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/05/30 07:22	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	7652dd2c5cb7	325a8dab	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/05/29 00:52	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	7652dd2c5cb7	858ea628	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/05/22 15:48	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	7257fbc7c598	3c7fef33	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/05/22 05:39	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	7257fbc7c598	3c7fef33	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/05/15 20:15	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	216e0e563d81	93f844de	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/05/14 01:05	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	216e0e563d81	ecb594cb	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/05/13 17:32	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	216e0e563d81	ecb594cb	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/05/12 01:14	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	4676be28a46e	b3c3bb8e	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/05/11 19:51	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	4676be28a46e	b3c3bb8e	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/05/08 14:20	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	31a8503589c4	bc5434be	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/05/06 03:55	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	d665ea6ea86c	06c27ff5	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/04/27 02:39	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	caa93d9bd2d7	8ee2dea6	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/04/26 23:17	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	caa93d9bd2d7	8ee2dea6	.config	log	report	info	INFO: task hung in usb_deregister_dev
ci2-upstream-usb	2021/01/09 20:51	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	841081d89d5a	a6c52263	.config	log	report	info
ci2-upstream-usb	2020/07/05 00:56	https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing	768a07412843	24d7f505	.config	log	report
ci2-upstream-usb	2019/08/11 00:40	https://github.com/google/kasan.git usb-fuzzer	e96407b49762	acb51638	.config	log	report