asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to enable software MII access asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to write reg index 0x0000: -71 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to enable software MII access INFO: task kworker/1:1:21 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/1:1 D24368 21 2 0x80000000 Workqueue: usb_hub_wq hub_event asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 Call Trace: schedule+0x8f/0x180 kernel/sched/core.c:3562 usb_kill_urb drivers/usb/core/urb.c:695 [inline] usb_kill_urb+0x22a/0x2c0 drivers/usb/core/urb.c:687 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to write reg index 0x0000: -71 usb_start_wait_urb+0x257/0x4d0 drivers/usb/core/message.c:63 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to enable software MII access usb_internal_control_msg drivers/usb/core/message.c:101 [inline] usb_control_msg+0x321/0x4a0 drivers/usb/core/message.c:152 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 usb_get_descriptor+0xc6/0x1c0 drivers/usb/core/message.c:647 usb_get_device_descriptor+0x86/0xf0 drivers/usb/core/message.c:917 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to write reg index 0x0000: -71 hub_port_init+0x10e6/0x2d30 drivers/usb/core/hub.c:4815 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to enable software MII access hub_port_connect drivers/usb/core/hub.c:5021 [inline] hub_port_connect_change drivers/usb/core/hub.c:5204 [inline] port_event drivers/usb/core/hub.c:5350 [inline] hub_event+0x11b8/0x3b00 drivers/usb/core/hub.c:5432 process_one_work+0x90f/0x1580 kernel/workqueue.c:2269 worker_thread+0x9b/0xe20 kernel/workqueue.c:2415 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 kthread+0x313/0x420 kernel/kthread.c:253 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 INFO: task kworker/0:4:5702 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. asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to write reg index 0x0000: -71 kworker/0:4 D23984 5702 2 0x80000000 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to enable software MII access Workqueue: usb_hub_wq hub_event Call Trace: schedule+0x8f/0x180 kernel/sched/core.c:3562 usb_kill_urb drivers/usb/core/urb.c:695 [inline] usb_kill_urb+0x22a/0x2c0 drivers/usb/core/urb.c:687 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 usb_start_wait_urb+0x257/0x4d0 drivers/usb/core/message.c:63 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to write reg index 0x0000: -71 usb_internal_control_msg drivers/usb/core/message.c:101 [inline] usb_control_msg+0x321/0x4a0 drivers/usb/core/message.c:152 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to enable software MII access usb_get_descriptor+0xc6/0x1c0 drivers/usb/core/message.c:647 usb_get_configuration+0x291/0x32b0 drivers/usb/core/config.c:836 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 usb_enumerate_device drivers/usb/core/hub.c:2367 [inline] usb_new_device+0x2fe/0x450 drivers/usb/core/hub.c:2503 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 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to write reg index 0x0000: -71 process_one_work+0x90f/0x1580 kernel/workqueue.c:2269 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to enable software MII access 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 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 INFO: task kworker/0:5:5757 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/0:5 D24608 5757 2 0x80000000 Workqueue: usb_hub_wq hub_event Call Trace: asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to write reg index 0x0000: -71 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to enable software MII access schedule+0x8f/0x180 kernel/sched/core.c:3562 usb_kill_urb drivers/usb/core/urb.c:695 [inline] usb_kill_urb+0x22a/0x2c0 drivers/usb/core/urb.c:687 usb_start_wait_urb+0x257/0x4d0 drivers/usb/core/message.c:63 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 usb_internal_control_msg drivers/usb/core/message.c:101 [inline] usb_control_msg+0x321/0x4a0 drivers/usb/core/message.c:152 usb_get_string+0xb1/0x1a0 drivers/usb/core/message.c:693 usb_string_sub+0xff/0x3d0 drivers/usb/core/message.c:732 usb_string+0x2d7/0x510 drivers/usb/core/message.c:834 usb_cache_string+0x83/0x110 drivers/usb/core/message.c:876 usb_enumerate_device drivers/usb/core/hub.c:2378 [inline] usb_new_device+0x17f/0x450 drivers/usb/core/hub.c:2503 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 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 process_one_work+0x90f/0x1580 kernel/workqueue.c:2269 worker_thread+0x9b/0xe20 kernel/workqueue.c:2415 kthread+0x313/0x420 kernel/kthread.c:253 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to write reg index 0x0000: -71 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to enable hardware MII access Showing all locks held in the system: 5 locks held by kworker/0:1/12: #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240 #1: 0000000044b11d3e ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to write reg index 0x0000: -71 #2: 000000000c3505b7 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #2: 000000000c3505b7 (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378 #3: 0000000022a2b9b4 (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2994 [inline] #3: 0000000022a2b9b4 (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5020 [inline] #3: 0000000022a2b9b4 (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5204 [inline] #3: 0000000022a2b9b4 (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5350 [inline] #3: 0000000022a2b9b4 (&port_dev->status_lock){+.+.}, at: hub_event+0x11a3/0x3b00 drivers/usb/core/hub.c:5432 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to enable software MII access #4: 000000002ca44c7e (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1bb/0x2d30 drivers/usb/core/hub.c:4529 5 locks held by kworker/1:1/21: #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 #1: 000000007eef630f ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244 #2: 00000000b5f25a56 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #2: 00000000b5f25a56 (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378 #3: 00000000c0372238 (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2994 [inline] #3: 00000000c0372238 (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5020 [inline] #3: 00000000c0372238 (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5204 [inline] #3: 00000000c0372238 (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5350 [inline] #3: 00000000c0372238 (&port_dev->status_lock){+.+.}, at: hub_event+0x11a3/0x3b00 drivers/usb/core/hub.c:5432 #4: 000000007b5a3ad6 (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1bb/0x2d30 drivers/usb/core/hub.c:4529 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to write reg index 0x0000: -71 1 lock held by khungtaskd/23: #0: 000000005dabafac (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x269 kernel/locking/lockdep.c:5059 5 locks held by kworker/1:2/576: #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240 #1: 00000000b7208e49 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244 #2: 0000000068fe3b80 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #2: 0000000068fe3b80 (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to enable software MII access #3: 0000000013c23a6a (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #3: 0000000013c23a6a (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 #4: 00000000524593a2 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #4: 00000000524593a2 (&dev->mutex){....}, at: __device_attach+0x80/0x3a0 drivers/base/dd.c:821 1 lock held by rsyslogd/5508: asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to write reg index 0x0000: -71 #0: 00000000bb9b4630 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xe8/0x100 fs/file.c:801 2 locks held by getty/5598: #0: 0000000021a64cd5 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272 #1: 000000003c355f86 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156 2 locks held by getty/5599: #0: 00000000d52820ae (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to enable software MII access #1: 000000003ad7ede7 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156 2 locks held by getty/5600: #0: 000000003ae5b927 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272 #1: 00000000a575a103 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156 2 locks held by getty/5601: #0: 0000000031f09377 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 #1: 000000002ff33d40 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156 2 locks held by getty/5602: #0: 00000000288cad08 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272 #1: 00000000bfbad94a (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156 2 locks held by getty/5603: #0: 00000000b33c07cd (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272 #1: 000000006a1c761d (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156 2 locks held by getty/5604: asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to write reg index 0x0000: -71 #0: 00000000d4c6e001 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x27/0x80 drivers/tty/tty_ldisc.c:272 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to enable software MII access #1: 00000000a2034aa7 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21c/0x1a60 drivers/tty/n_tty.c:2156 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71 3 locks held by kworker/0:4/5702: #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to write reg index 0x0000: -71 #1: 00000000a600a93b ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244 #2: 000000001cc43482 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #2: 000000001cc43482 (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378 8 locks held by kworker/1:4/5718: 3 locks held by kworker/0:5/5757: #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: __write_once_size include/linux/compiler.h:220 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_data kernel/workqueue.c:619 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline] #0: 0000000050e28982 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x81f/0x1580 kernel/workqueue.c:2240 #1: 0000000025642ee2 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x853/0x1580 kernel/workqueue.c:2244 #2: 000000007adfce91 (&dev->mutex){....}, at: device_lock include/linux/device.h:1207 [inline] #2: 000000007adfce91 (&dev->mutex){....}, at: hub_event+0x18a/0x3b00 drivers/usb/core/hub.c:5378 ============================================= 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 asix 3-1:0.185 (unnamed net_device) (uninitialized): Failed to enable software MII access 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 CPU: 1 PID: 5652 Comm: syz-executor.2 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:__read_once_size include/linux/compiler.h:193 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:142 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x1c/0x50 kernel/kcov.c:174 Code: ff ff 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 34 24 65 48 8b 04 25 00 ee 01 00 65 8b 15 0c 28 90 7e 81 e2 00 01 1f 00 75 2b <8b> 90 b0 12 00 00 83 fa 02 75 20 48 8b 88 b8 12 00 00 8b 80 b4 12 RSP: 0018:ffff88807b147ef0 EFLAGS: 00000046 RAX: ffff8880a8731880 RBX: 0000000000000001 RCX: ffffffff8178c75d RDX: 0000000000000000 RSI: ffffffff8178c766 RDI: 0000000000000005 RBP: ffff88807b147f58 R08: ffff8880a8731880 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000a57940(0000) GS:ffff8880ad100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f893206e000 CR3: 000000007b13e000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: preempt_count arch/x86/include/asm/preempt.h:26 [inline] trace_hardirqs_on+0x26/0x1c0 kernel/trace/trace_preemptirq.c:25 do_syscall_64+0x1f/0x4f0 arch/x86/entry/common.c:277 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4863f0 Code: 00 00 48 c7 c0 d4 ff ff ff 64 c7 00 16 00 00 00 31 c0 eb be 66 0f 1f 44 00 00 83 3d 61 03 5d 00 00 75 14 b8 23 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 b4 e0 f8 ff c3 48 83 ec 08 e8 ea 53 fd ff RSP: 002b:00007fffd2ba8158 EFLAGS: 00000246 ORIG_RAX: 0000000000000023 RAX: ffffffffffffffda RBX: 0000000000055726 RCX: 00000000004863f0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007fffd2ba8160 RBP: 0000000000000124 R08: 0000000000000001 R09: 0000000000a57940 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fffd2ba81b0 R14: 0000000000055710 R15: 00007fffd2ba81c0