INFO: task kworker/1:3:5777 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/1:3 D24592 5777 2 0x80000000 Workqueue: usb_hub_wq hub_event Call Trace: schedule+0x8f/0x180 kernel/sched/core.c:3562 schedule_timeout+0x477/0xdb0 kernel/time/timer.c:1803 usb_start_wait_urb.constprop.0+0x2a2/0x2e0 drivers/net/usb/kaweth.c:1250 kaweth_internal_control_msg drivers/net/usb/kaweth.c:1286 [inline] kaweth_control.constprop.0+0x365/0x4f0 drivers/net/usb/kaweth.c:281 kaweth_read_configuration drivers/net/usb/kaweth.c:299 [inline] kaweth_probe.cold+0xb1/0x1359 drivers/net/usb/kaweth.c:1077 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 worker_thread+0x9b/0xe20 kernel/workqueue.c:2415 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: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240 #1: 0000000004d2cd85 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244 #2: 000000003a7f2526 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #2: 000000003a7f2526 (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378 #3: 00000000c1ecbbb0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #3: 00000000c1ecbbb0 (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821 #4: 00000000696c73d8 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #4: 00000000696c73d8 (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821 #5: 00000000f951e729 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #5: 00000000f951e729 (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821 #6: 00000000fc89577a (core_lock){+.+.}, at: i2c_register_adapter+0x507/0xb30 drivers/i2c/i2c-core-base.c:1292 #7: 000000005cd28da2 (i2c_register_adapter){+.+.}, at: i2c_lock_bus include/linux/i2c.h:739 [inline] #7: 000000005cd28da2 (i2c_register_adapter){+.+.}, at: i2c_smbus_xfer+0x79/0x130 drivers/i2c/i2c-core-smbus.c:533 #8: 00000000033fb784 (&vb->lock){+.+.}, at: vprbrd_i2c_xfer+0x1a3/0x1b9e drivers/i2c/busses/i2c-viperboard.c:291 5 locks held by kworker/1:0/17: #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240 #1: 0000000091fa40cb ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244 #2: 00000000c29ddc0b (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #2: 00000000c29ddc0b (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378 #3: 000000000e8125f7 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #3: 000000000e8125f7 (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821 #4: 000000002ae7a4b0 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #4: 000000002ae7a4b0 (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821 1 lock held by khungtaskd/23: #0: 0000000058ed9451 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x269 kernel/locking/lockdep.c:5059 3 locks held by kworker/u4:2/466: #0: 00000000f99b3d23 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1168 [inline] #0: 00000000f99b3d23 (&rq->lock){-.-.}, at: __schedule+0x1ed/0x1d00 kernel/sched/core.c:3456 #1: 0000000058ed9451 (rcu_read_lock){....}, at: __update_idle_core+0x47/0x3f0 kernel/sched/fair.c:6059 #2: 0000000058ed9451 (rcu_read_lock){....}, at: lock_timer_base+0x5a/0x1a0 kernel/time/timer.c:937 7 locks held by kworker/1:2/533: #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240 #1: 000000008403d54c ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244 #2: 00000000dc9c26a4 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #2: 00000000dc9c26a4 (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378 #3: 00000000a8d44fee (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #3: 00000000a8d44fee (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821 #4: 00000000d69c6e55 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #4: 00000000d69c6e55 (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821 #5: 00000000dbff2c56 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #5: 00000000dbff2c56 (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821 #6: 00000000fc89577a (core_lock){+.+.}, at: i2c_add_adapter+0x1e/0x110 drivers/i2c/i2c-core-base.c:1356 1 lock held by rsyslogd/5628: #0: 000000004a90114c (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xe8/0x100 fs/file.c:801 2 locks held by getty/5718: #0: 0000000016f9f2d7 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272 #1: 0000000057521c56 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156 2 locks held by getty/5719: #0: 000000006684bf0d (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272 #1: 00000000873f0fd7 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156 2 locks held by getty/5720: #0: 00000000232d9a1a (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272 #1: 00000000a305a348 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156 2 locks held by getty/5721: #0: 000000003fdf4ccd (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272 #1: 00000000e8ddc2cd (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156 2 locks held by getty/5722: #0: 000000006da3e07c (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272 #1: 000000000281724c (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156 2 locks held by getty/5723: #0: 00000000f9aba48a (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272 #1: 00000000dadb2ba8 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156 2 locks held by getty/5724: #0: 0000000049c15620 (&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 20 using dummy_hcd #1: 00000000cc5fa955 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156 1 lock held by syz-executor.1/5760: #0: 00000000f99b3d23 (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1168 [inline] #0: 00000000f99b3d23 (&rq->lock){-.-.}, at: __schedule+0x1ed/0x1d00 kernel/sched/core.c:3456 5 locks held by kworker/1:3/5777: #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240 #1: 00000000e325b50a ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244 #2: 0000000076c853b9 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #2: 0000000076c853b9 (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378 #3: 000000004851a2b3 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #3: 000000004851a2b3 (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821 #4: 00000000a557ee23 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #4: 00000000a557ee23 (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821 5 locks held by kworker/1:5/5837: #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240 #1: 00000000f14138fe ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244 #2: 00000000ce8ce8b8 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #2: 00000000ce8ce8b8 (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378 #3: 00000000e3eb02b7 (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2994 [inline] #3: 00000000e3eb02b7 (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5020 [inline] #3: 00000000e3eb02b7 (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5204 [inline] #3: 00000000e3eb02b7 (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5350 [inline] #3: 00000000e3eb02b7 (&port_dev->status_lock){+.+.}, at: hub_event+0x11a3/0x3b00 drivers/usb/core/hub.c:5432 #4: 00000000152926b1 (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1bb/0x2d30 drivers/usb/core/hub.c:4529 6 locks held by kworker/0:6/6020: #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline] #0: 00000000e1cd7ad5 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240 #1: 000000002b4f1dbb ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244 #2: 0000000085e7557a (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #2: 0000000085e7557a (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378 #3: 00000000009a4645 (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2994 [inline] #3: 00000000009a4645 (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5020 [inline] #3: 00000000009a4645 (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5204 [inline] #3: 00000000009a4645 (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5350 [inline] #3: 00000000009a4645 (&port_dev->status_lock){+.+.}, at: hub_event+0x11a3/0x3b00 drivers/usb/core/hub.c:5432 #4: 000000006d202357 (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1bb/0x2d30 drivers/usb/core/hub.c:4529 #5: 00000000a602b2d7 (ehci_cf_port_reset_rwsem){.+.+}, at: hub_port_reset+0x18a/0x1770 drivers/usb/core/hub.c:2856 1 lock held by syz-executor.1/7976: ============================================= NMI backtrace for cpu 1 CPU: 1 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 usb 5-1: Using ep0 maxpacket: 8 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 5743 Comm: syz-fuzzer Not tainted 5.1.0-rc4-319354-g9a33b36 #3 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:hlock_class kernel/locking/lockdep.c:156 [inline] RIP: 0010:__lock_acquire+0x887/0x37c0 kernel/locking/lockdep.c:3698 Code: 00 0f 84 2a 0d 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 18 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 01 0f 8e e5 22 00 00 <41> 0f b7 42 20 66 a9 ff 1f 0f 84 32 0c 00 00 48 ba 00 00 00 00 00 RSP: 0000:ffff8880ad007b60 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1ffff11013f89d4c RDX: 1ffff11013f89d4c RSI: ffff88809fc4ea40 RDI: ffffffff96713fb0 RBP: 0000000000000000 R08: 000000009d7c1b14 R09: 0000000000000083 R10: ffff88809fc4ea40 R11: ffff88809fc4e200 R12: 000000008aa7afcc R13: 00000000ffdf7dfc R14: ffffffff93cb0554 R15: 0000000000000001 FS: 000000c42003f090(0000) GS:ffff8880ad000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6a5cbff028 CR3: 00000000a01ea000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x10d/0x2f0 kernel/locking/lockdep.c:4211 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x44/0x60 kernel/locking/spinlock.c:152 try_to_wake_up+0x86/0xf90 kernel/sched/core.c:2008 hrtimer_wakeup+0x48/0x60 kernel/time/hrtimer.c:1637 __run_hrtimer kernel/time/hrtimer.c:1389 [inline] __hrtimer_run_queues+0x2d7/0xbd0 kernel/time/hrtimer.c:1451 hrtimer_interrupt+0x2ed/0x740 kernel/time/hrtimer.c:1509 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1035 [inline] smp_apic_timer_interrupt+0xdd/0x4a0 arch/x86/kernel/apic/apic.c:1060 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0033:0x41d178 Code: 17 41 84 00 0f b6 14 17 85 d2 75 06 48 8d 56 40 eb cb 45 31 c0 eb 09 49 ff c0 d1 ea 48 83 c6 08 49 83 f8 08 0f 8d e7 00 00 00 <48> 39 de 0f 83 de 00 00 00 0f ba e2 00 0f 83 ca 00 00 00 4c 8b 4c RSP: 002b:000000c420163e10 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff13 RAX: 000000c420000000 RBX: 0000000000040000 RCX: 000000c424e00000 RDX: 0000000000000032 RSI: 000000000000ce90 RDI: 00007f5381144000 RBP: 000000c420163e78 R08: 0000000000000002 R09: 000000000100a7c0 R10: 000000000089d349 R11: 000000000000cd48 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000001