usb 5-1: device descriptor read/64, error 18
INFO: task kworker/0:1:12 blocked for more than 143 seconds.
Not tainted 5.1.0-rc4-319354-g9a33b36 #3
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/0:1 D24384 12 2 0x80000000
Workqueue: usb_hub_wq hub_event
Call Trace:
schedule+0x8f/0x180 kernel/sched/core.c:3562
schedule_preempt_disabled+0x11/0x20 kernel/sched/core.c:3620
__mutex_lock_common kernel/locking/mutex.c:1002 [inline]
__mutex_lock+0x800/0x12b0 kernel/locking/mutex.c:1072
i2c_add_adapter+0x1e/0x110 drivers/i2c/i2c-core-base.c:1356
dvb_usbv2_i2c_init drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:82 [inline]
dvb_usbv2_init drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:874 [inline]
dvb_usbv2_probe.cold+0x9c4/0x29f6 drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:993
usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361
really_probe+0x2da/0xb10 drivers/base/dd.c:509
driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
__device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
__device_attach+0x223/0x3a0 drivers/base/dd.c:844
bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
device_add+0xad2/0x16e0 drivers/base/core.c:2106
usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021
generic_probe+0xa2/0xda drivers/usb/core/generic.c:210
usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266
really_probe+0x2da/0xb10 drivers/base/dd.c:509
driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
__device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
__device_attach+0x223/0x3a0 drivers/base/dd.c:844
bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
device_add+0xad2/0x16e0 drivers/base/core.c:2106
usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534
hub_port_connect drivers/usb/core/hub.c:5089 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
port_event drivers/usb/core/hub.c:5350 [inline]
hub_event+0x138e/0x3b00 drivers/usb/core/hub.c:5432
process_one_work+0x90f/0x1580 kernel/workqueue.c:2269
process_scheduled_works kernel/workqueue.c:2331 [inline]
worker_thread+0x7b0/0xe20 kernel/workqueue.c:2417
kthread+0x313/0x420 kernel/kthread.c:253
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Showing all locks held in the system:
9 locks held by kworker/0:0/5:
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240
#1: 00000000e66e1c9e ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244
#2: 00000000b4c03b1f (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline]
#2: 00000000b4c03b1f (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378
#3: 00000000045ac9ab (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline]
#3: 00000000045ac9ab (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821
#4: 00000000cae30137 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline]
#4: 00000000cae30137 (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821
#5: 0000000067a08198 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline]
#5: 0000000067a08198 (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821
#6: 0000000057fdb04c (core_lock){+.+.}, at: i2c_register_adapter+0x507/0xb30 drivers/i2c/i2c-core-base.c:1292
#7: 000000007e46de1d (i2c_register_adapter){+.+.}, at: i2c_lock_bus include/linux/i2c.h:739 [inline]
#7: 000000007e46de1d (i2c_register_adapter){+.+.}, at: i2c_smbus_xfer+0x79/0x130 drivers/i2c/i2c-core-smbus.c:533
usb 5-1: device descriptor read/64, error -71
#8: 00000000b56d524a (&vb->lock){+.+.}, at: vprbrd_i2c_xfer+0x1a3/0x1b9e drivers/i2c/busses/i2c-viperboard.c:291
6 locks held by kworker/0:1/12:
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240
#1: 00000000fc47ee77 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244
#2: 0000000023341d1a (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline]
#2: 0000000023341d1a (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378
#3: 000000005f8e5ef3 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline]
#3: 000000005f8e5ef3 (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821
#4: 00000000d18fb6ba (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline]
#4: 00000000d18fb6ba (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821
#5: 0000000057fdb04c (core_lock){+.+.}, at: i2c_add_adapter+0x1e/0x110 drivers/i2c/i2c-core-base.c:1356
5 locks held by kworker/1:1/22:
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240
#1: 00000000dc13cbcf ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244
#2: 000000007d8fcf81 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline]
#2: 000000007d8fcf81 (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378
#3: 00000000131c495b (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2994 [inline]
#3: 00000000131c495b (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5020 [inline]
#3: 00000000131c495b (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
#3: 00000000131c495b (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5350 [inline]
#3: 00000000131c495b (&port_dev->status_lock){+.+.}, at: hub_event+0x11a3/0x3b00 drivers/usb/core/hub.c:5432
#4: 000000000a5246fe (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1bb/0x2d30 drivers/usb/core/hub.c:4529
1 lock held by khungtaskd/23:
#0: 000000003aab382c (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x269 kernel/locking/lockdep.c:5059
5 locks held by kworker/0:3/585:
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240
#1: 00000000b4f2f462 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244
#2: 0000000055d21bcd (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline]
#2: 0000000055d21bcd (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378
#3: 00000000e3d3ac1f (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline]
#3: 00000000e3d3ac1f (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821
#4: 000000000b26c1a5 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline]
#4: 000000000b26c1a5 (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821
1 lock held by rsyslogd/5267:
#0: 00000000583bd171 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xe8/0x100 fs/file.c:801
2 locks held by getty/5357:
#0: 0000000091081161 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272
#1: 00000000ade5c188 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156
2 locks held by getty/5358:
#0: 0000000092a1aa1c (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272
#1: 00000000d0fb7c50 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156
2 locks held by getty/5359:
#0: 0000000097623dcd (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272
#1: 000000000fbc66b9 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156
2 locks held by getty/5360:
#0: 00000000fe0d1b8e (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272
#1: 0000000046cb7962 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156
2 locks held by getty/5361:
#0: 00000000c492b8e4 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272
usb 5-1: new high-speed USB device number 41 using dummy_hcd
#1: 00000000a98252a8 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156
2 locks held by getty/5362:
#0: 0000000008576bed (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272
#1: 00000000c9d762e7 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156
2 locks held by getty/5363:
#0: 00000000b98c1e67 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272
#1: 00000000e411d990 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156
3 locks held by kworker/1:3/5445:
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240
#1: 000000001b758318 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244
#2: 00000000b031a8fe (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline]
#2: 00000000b031a8fe (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378
6 locks held by kworker/1:5/5611:
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline]
#0: 000000001eff4600 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240
#1: 00000000bf4c8c88 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244
#2: 000000003a8e8e5f (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline]
#2: 000000003a8e8e5f (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378
#3: 000000005e174af3 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline]
#3: 000000005e174af3 (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821
#4: 00000000d212df0c (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline]
#4: 00000000d212df0c (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821
#5: 000000002aee8307 (hcd->bandwidth_mutex){+.+.}, at: usb_reset_configuration+0x12c/0x8b0 drivers/usb/core/message.c:1537
1 lock held by syz-executor.3/10815:
#0: 000000006421099e (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1168 [inline]
#0: 000000006421099e (&rq->lock){-.-.}, at: __schedule+0x1ed/0x1d00 kernel/sched/core.c:3456
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 23 Comm: khungtaskd Not tainted 5.1.0-rc4-319354-g9a33b36 #3
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0xe8/0x16e lib/dump_stack.c:113
nmi_cpu_backtrace.cold+0x48/0x87 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1a6/0x1bd lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:204 [inline]
watchdog+0x98e/0xe20 kernel/hung_task.c:288
kthread+0x313/0x420 kernel/kthread.c:253
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0x2/0x10 arch/x86/include/asm/irqflags.h:57