INFO: task kworker/1:0:17 blocked for more than 143 seconds. Not tainted 5.7.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/1:0 D26120 17 2 0x80004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:3367 [inline] __schedule+0x892/0x1d80 kernel/sched/core.c:4083 lock_downgrade+0x720/0x720 kernel/locking/lockdep.c:4599 __sched_text_start+0x8/0x8 __trace_hardirqs_on_caller kernel/locking/lockdep.c:3657 [inline] lockdep_hardirqs_on+0x3c7/0x5d0 kernel/locking/lockdep.c:3702 schedule+0xcd/0x2b0 kernel/sched/core.c:4158 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4217 __mutex_lock_common kernel/locking/mutex.c:1033 [inline] __mutex_lock+0x87c/0x1360 kernel/locking/mutex.c:1103 input_disconnect_device drivers/input/input.c:733 [inline] __input_unregister_device+0x23/0x430 drivers/input/input.c:2086 mutex_trylock+0x2c0/0x2c0 kernel/locking/mutex.c:126 mark_held_locks+0x9f/0xe0 kernel/locking/lockdep.c:3628 __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] _raw_spin_unlock_irq+0x1f/0x30 kernel/locking/spinlock.c:199 __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] _raw_spin_unlock_irq+0x1f/0x30 kernel/locking/spinlock.c:199 __read_once_size include/linux/compiler.h:199 [inline] list_empty include/linux/list.h:282 [inline] usb_hcd_flush_endpoint+0x15c/0x410 drivers/usb/core/hcd.c:1787 input_disconnect_device drivers/input/input.c:733 [inline] __input_unregister_device+0x23/0x430 drivers/input/input.c:2086 input_disconnect_device drivers/input/input.c:733 [inline] __input_unregister_device+0x23/0x430 drivers/input/input.c:2086 input_unregister_device+0xb4/0xf0 drivers/input/input.c:2273 iforce_usb_disconnect+0x5e/0xf0 drivers/input/joystick/iforce/iforce-usb.c:261 usb_unbind_interface+0x1bd/0x8a0 drivers/usb/core/driver.c:436 __pm_runtime_idle+0xd1/0x310 drivers/base/power/runtime.c:1021 usb_autoresume_device+0x60/0x60 include/linux/pm_runtime.h:252 __device_release_driver drivers/base/dd.c:1110 [inline] device_release_driver_internal+0x432/0x500 drivers/base/dd.c:1141 bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:533 device_del+0x481/0xd30 drivers/base/core.c:2715 device_create_with_groups+0x120/0x120 drivers/base/core.c:3308 usb_remove_ep_devs+0x3e/0x80 drivers/usb/core/endpoint.c:215 remove_intf_ep_devs+0x13f/0x1d0 drivers/usb/core/message.c:1121 usb_disable_device+0x23d/0x790 drivers/usb/core/message.c:1245 usb_disconnect+0x293/0x900 drivers/usb/core/hub.c:2217 hub_port_connect drivers/usb/core/hub.c:5059 [inline] hub_port_connect_change drivers/usb/core/hub.c:5348 [inline] port_event drivers/usb/core/hub.c:5494 [inline] hub_event+0x1abf/0x43c0 drivers/usb/core/hub.c:5576 hub_port_debounce+0x350/0x350 drivers/usb/core/hub.c:4441 __x64_sys_sysinfo+0x30/0x40 kernel/sys.c:2604 lock_is_held include/linux/lockdep.h:406 [inline] rcu_read_lock_sched_held+0x9c/0xd0 kernel/rcu/update.c:121 rcu_read_lock_bh_held+0xb0/0xb0 kernel/rcu/update.c:333 __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] _raw_spin_unlock_irq+0x1f/0x30 kernel/locking/spinlock.c:199 process_one_work+0x965/0x1630 kernel/workqueue.c:2268 lock_release+0x720/0x720 kernel/locking/lockdep.c:4689 pwq_dec_nr_in_flight+0x310/0x310 kernel/workqueue.c:1198 rwlock_bug.part.0+0x90/0x90 include/linux/sched.h:1332 worker_thread+0x96/0xe20 kernel/workqueue.c:2414 process_one_work+0x1630/0x1630 kernel/workqueue.c:1029 kthread+0x326/0x430 kernel/kthread.c:268 kthread_create_on_node+0xf0/0xf0 kernel/kthread.c:405 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351 Showing all locks held in the system: 6 locks held by kworker/0:0/5: #0: ffff8881d88a7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: __write_once_size include/linux/compiler.h:226 [inline] #0: ffff8881d88a7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8881d88a7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline] #0: ffff8881d88a7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline] #0: ffff8881d88a7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:615 [inline] #0: ffff8881d88a7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:642 [inline] #0: ffff8881d88a7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x844/0x1630 kernel/workqueue.c:2239 #1: ffff8881da1d7dc0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x878/0x1630 kernel/workqueue.c:2243 #2: ffff8881d4b2d218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:768 [inline] #2: ffff8881d4b2d218 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x43c0 drivers/usb/core/hub.c:5522 #3: ffff8881d4b48588 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3012 [inline] #3: ffff8881d4b48588 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5139 [inline] #3: ffff8881d4b48588 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5348 [inline] #3: ffff8881d4b48588 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5494 [inline] #3: ffff8881d4b48588 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2050/0x43c0 drivers/usb/core/hub.c:5576 #4: ffff8881d4958d68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_init+0x1b6/0x2e20 drivers/usb/core/hub.c:4563 #5: ffffffff8769ab30 (ehci_cf_port_reset_rwsem){.+.+}-{3:3}, at: hub_port_reset+0x186/0x1790 drivers/usb/core/hub.c:2874 6 locks held by kworker/1:0/17: #0: ffff8881d88a7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: __write_once_size include/linux/compiler.h:226 [inline] #0: ffff8881d88a7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8881d88a7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline] #0: ffff8881d88a7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline] #0: ffff8881d88a7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:615 [inline] #0: ffff8881d88a7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:642 [inline] #0: ffff8881d88a7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x844/0x1630 kernel/workqueue.c:2239 #1: ffff8881da25fdc0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x878/0x1630 kernel/workqueue.c:2243 #2: ffff8881d4a85218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:768 [inline] #2: ffff8881d4a85218 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x43c0 drivers/usb/core/hub.c:5522 #3: ffff8881cdde0218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:768 [inline] #3: ffff8881cdde0218 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0x91/0x900 drivers/usb/core/hub.c:2208 #4: ffff8881cdde71a8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0x23/0x500 drivers/base/dd.c:1138 #5: ffff8881ce6702c0 (&dev->mutex#2){+.+.}-{3:3}, at: input_disconnect_device drivers/input/input.c:733 [inline] #5: ffff8881ce6702c0 (&dev->mutex#2){+.+.}-{3:3}, at: __input_unregister_device+0x23/0x430 drivers/input/input.c:2086 3 locks held by kworker/1:1/21: 1 lock held by khungtaskd/23: #0: ffffffff87111260 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x264 kernel/locking/lockdep.c:5754 5 locks held by kworker/0:2/94: 1 lock held by in:imklog/265: #0: ffff8881cbb4a870 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:826 6 locks held by kworker/0:6/3148: #0: ffff8881d88a7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: __write_once_size include/linux/compiler.h:226 [inline] #0: ffff8881d88a7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8881d88a7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline] #0: ffff8881d88a7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline] #0: ffff8881d88a7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:615 [inline] #0: ffff8881d88a7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:642 [inline] #0: ffff8881d88a7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x844/0x1630 kernel/workqueue.c:2239 #1: ffff8881cb2dfdc0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x878/0x1630 kernel/workqueue.c:2243 #2: ffff8881d4a2d218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:768 [inline] #2: ffff8881d4a2d218 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x43c0 drivers/usb/core/hub.c:5522 #3: ffff8881d0dea218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:768 [inline] #3: ffff8881d0dea218 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0x91/0x900 drivers/usb/core/hub.c:2208 #4: ffff8881d108a1a8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0x23/0x500 drivers/base/dd.c:1138 #5: ffff8881cfa9a2c0 (&dev->mutex#2){+.+.}-{3:3}, at: input_disconnect_device drivers/input/input.c:733 [inline] #5: ffff8881cfa9a2c0 (&dev->mutex#2){+.+.}-{3:3}, at: __input_unregister_device+0x23/0x430 drivers/input/input.c:2086 6 locks held by kworker/0:7/3220: 3 locks held by kworker/1:7/3260: #0: ffff8881da028d38 ((wq_completion)events){+.+.}-{0:0}, at: __write_once_size include/linux/compiler.h:226 [inline] #0: ffff8881da028d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8881da028d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:855 [inline] #0: ffff8881da028d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:40 [inline] #0: ffff8881da028d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:615 [inline] #0: ffff8881da028d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:642 [inline] #0: ffff8881da028d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x844/0x1630 kernel/workqueue.c:2239 #1: ffff8881cbd2fdc0 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x878/0x1630 kernel/workqueue.c:2243 #2: ffff8881d4ad5218 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:768 [inline] #2: ffff8881d4ad5218 (&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1077 [inline] #2: ffff8881d4ad5218 (&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_cb+0x388/0x510 drivers/net/wireless/ath/ath9k/hif_usb.c:1210 2 locks held by systemd-udevd/3636: #0: ffff8881d0a3b160 (&evdev->mutex){+.+.}-{3:3}, at: evdev_close_device drivers/input/evdev.c:425 [inline] #0: ffff8881d0a3b160 (&evdev->mutex){+.+.}-{3:3}, at: evdev_release+0xeb/0x1c0 drivers/input/evdev.c:466 #1: ffff8881cfa9a2c0 (&dev->mutex#2){+.+.}-{3:3}, at: input_close_device+0x42/0x1a0 drivers/input/input.c:674 2 locks held by systemd-udevd/3638: #0: ffff8881ccd60160 (&evdev->mutex){+.+.}-{3:3}, at: evdev_close_device drivers/input/evdev.c:425 [inline] #0: ffff8881ccd60160 (&evdev->mutex){+.+.}-{3:3}, at: evdev_release+0xeb/0x1c0 drivers/input/evdev.c:466 #1: ffff8881ce6702c0 (&dev->mutex#2){+.+.}-{3:3}, at: input_close_device+0x42/0x1a0 drivers/input/input.c:674 1 lock held by syz-executor.3/4511: #0: ffff8881ccd60160 (&evdev->mutex){+.+.}-{3:3}, at: evdev_open_device drivers/input/evdev.c:407 [inline] #0: ffff8881ccd60160 (&evdev->mutex){+.+.}-{3:3}, at: evdev_open+0x29a/0x500 drivers/input/evdev.c:496 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 23 Comm: khungtaskd Not tainted 5.7.0-rc6-syzkaller #0 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+0xef/0x16e lib/dump_stack.c:118 irq_force_complete_move.cold+0x13/0x47 arch/x86/kernel/apic/vector.c:1023 nmi_cpu_backtrace.cold+0x70/0xb1 lib/nmi_backtrace.c:101 lapic_can_unplug_cpu.cold+0x3b/0x3b nmi_trigger_cpumask_backtrace+0x1db/0x207 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:205 [inline] watchdog+0xa99/0xfd0 kernel/hung_task.c:289 reset_hung_task_detector+0x30/0x30 kernel/hung_task.c:243 kthread+0x326/0x430 kernel/kthread.c:268 kthread_create_on_node+0xf0/0xf0 kernel/kthread.c:405 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 392 Comm: syz-executor.4 Not tainted 5.7.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:propagate_entity_load_avg kernel/sched/fair.c:3558 [inline] RIP: 0010:update_load_avg+0x150/0x1b20 kernel/sched/fair.c:3785 Code: 74 08 3c 03 0f 8e 93 12 00 00 8b 9d 00 01 00 00 85 db 0f 85 dd 07 00 00 4c 89 ff 48 89 ee e8 d7 6b 04 00 49 8d be 58 01 00 00 <48> 89 fa 09 c3 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 RSP: 0018:ffff8881db309bf0 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000000000002f4 RDX: 1ffff1103b66694b RSI: ffff8881db3349c0 RDI: ffff8881c69964d8 RBP: ffff8881db3349c0 R08: 0000000000013000 R09: 00000000000002a8 R10: 0000000000039000 R11: 0000000000000001 R12: dffffc0000000000 R13: ffff8881c6996500 R14: ffff8881c6996380 R15: 00000034f41bd135 FS: 0000000000e14940(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcb9b76f008 CR3: 00000001ce47b000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_lock_release include/linux/rcupdate.h:213 [inline] rcu_read_unlock include/linux/rcupdate.h:655 [inline] cgroup_account_cputime include/linux/cgroup.h:785 [inline] update_curr+0x39c/0x830 kernel/sched/fair.c:873 enqueue_entity kernel/sched/fair.c:4203 [inline] enqueue_task_fair+0x23a/0x22d0 kernel/sched/fair.c:5457 enqueue_task kernel/sched/core.c:1295 [inline] activate_task+0xfb/0x320 kernel/sched/core.c:1317 ttwu_do_activate+0xca/0x130 kernel/sched/core.c:2247 ttwu_queue kernel/sched/core.c:2392 [inline] try_to_wake_up+0xa86/0x1690 kernel/sched/core.c:2626 set_cpus_allowed_ptr+0x10/0x10 kernel/sched/core.c:1691 lock_is_held include/linux/lockdep.h:406 [inline] rcu_read_lock_sched_held+0x9c/0xd0 kernel/rcu/update.c:121 rcu_read_lock_bh_held+0xb0/0xb0 kernel/rcu/update.c:333 hrtimer_wakeup+0x43/0x60 kernel/time/hrtimer.c:1774 __run_hrtimer kernel/time/hrtimer.c:1520 [inline] __hrtimer_run_queues+0x1ce/0xe10 kernel/time/hrtimer.c:1584 hrtimer_init_sleeper_on_stack+0x90/0x90 kernel/time/hrtimer.c:1833 atomic_try_cmpxchg include/asm-generic/atomic-instrumented.h:694 [inline] queued_spin_lock include/asm-generic/qspinlock.h:78 [inline] do_raw_spin_lock+0x129/0x290 kernel/locking/spinlock_debug.c:113 hrtimer_init+0x2e0/0x2e0 include/linux/compiler.h:199 ktime_get_update_offsets_now+0x24c/0x320 kernel/time/timekeeping.c:2240 hrtimer_interrupt+0x2e8/0x730 kernel/time/hrtimer.c:1646 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1113 [inline] smp_apic_timer_interrupt+0xfe/0x540 arch/x86/kernel/apic/apic.c:1138 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:__read_once_size include/linux/compiler.h:199 [inline] RIP: 0010:compound_head include/linux/page-flags.h:182 [inline] RIP: 0010:PageAnon include/linux/page-flags.h:479 [inline] RIP: 0010:mm_counter include/linux/mm.h:1872 [inline] RIP: 0010:copy_one_pte mm/memory.c:804 [inline] RIP: 0010:copy_pte_range mm/memory.c:853 [inline] RIP: 0010:copy_pmd_range mm/memory.c:904 [inline] RIP: 0010:copy_pud_range mm/memory.c:938 [inline] RIP: 0010:copy_p4d_range mm/memory.c:960 [inline] RIP: 0010:copy_page_range+0x105f/0x2510 mm/memory.c:1022 Code: 00 e8 65 ad e2 ff be 04 00 00 00 4c 89 e7 e8 a8 f5 0b 00 f0 41 ff 04 24 48 8d 7b 30 be 04 00 00 00 e8 95 f5 0b 00 f0 ff 43 30 <4c> 89 e8 48 c1 e8 03 42 80 3c 30 00 0f 85 a9 10 00 00 48 8b 43 08 RSP: 0018:ffff8881acc4f820 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000001 RBX: ffffea00073dc740 RCX: ffffffff815d91cb RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffea00073dc770 RBP: 80000001cf71d007 R08: ffff8881d2223180 R09: fffff94000e7b8ef R10: ffffea00073dc773 R11: fffff94000e7b8ee R12: ffffea00073dc774 R13: ffffea00073dc748 R14: dffffc0000000000 R15: 0000000000000000 atomic_inc include/asm-generic/atomic-instrumented.h:239 [inline] page_dup_rmap include/linux/rmap.h:189 [inline] copy_one_pte mm/memory.c:803 [inline] copy_pte_range mm/memory.c:853 [inline] copy_pmd_range mm/memory.c:904 [inline] copy_pud_range mm/memory.c:938 [inline] copy_p4d_range mm/memory.c:960 [inline] copy_page_range+0x105b/0x2510 mm/memory.c:1022 __pmd_alloc+0x390/0x390 include/linux/compiler.h:226 vma_compute_subtree_gap+0x152/0x230 mm/mmap.c:326 validate_mm_rb+0x3e/0xb0 mm/mmap.c:381 vma_rb_insert mm/mmap.c:456 [inline] __vma_link_rb+0x577/0x740 mm/mmap.c:612 dup_mmap kernel/fork.c:607 [inline] dup_mm+0x8d5/0x1140 kernel/fork.c:1363 vm_area_dup+0x1d0/0x1d0 kernel/fork.c:362 lockdep_init_map_waits+0x26a/0x7c0 kernel/locking/lockdep.c:4138 copy_mm kernel/fork.c:1419 [inline] copy_process+0x2752/0x64e0 kernel/fork.c:2085 print_usage_bug+0x200/0x200 kernel/locking/lockdep.c:101 __cleanup_sighand+0xb0/0xb0 kernel/fork.c:1540 find_held_lock+0x2d/0x110 kernel/locking/lockdep.c:4458 _do_fork+0x12d/0xfd0 kernel/fork.c:2430 lock_downgrade+0x720/0x720 kernel/locking/lockdep.c:4599 copy_init_mm+0x20/0x20 kernel/fork.c:2392 __might_fault mm/memory.c:4814 [inline] __might_fault+0x190/0x1d0 mm/memory.c:4799 __do_sys_clone+0xef/0x150 kernel/fork.c:2586 __do_sys_clone3+0x320/0x320 include/linux/uaccess.h:208 __ia32_sys_clock_settime+0x260/0x260 kernel/time/posix-timers.c:1410 trace_hardirqs_off_caller+0x55/0x200 kernel/trace/trace_preemptirq.c:73 do_syscall_64+0xb6/0x5a0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x45b09a Code: f7 d8 64 89 04 25 d4 02 00 00 64 4c 8b 0c 25 10 00 00 00 31 d2 4d 8d 91 d0 02 00 00 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 f5 00 00 00 85 c0 41 89 c5 0f 85 fc 00 00 RSP: 002b:00007ffc769fcff0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffc769fcff0 RCX: 000000000045b09a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 00007ffc769fd030 R08: 0000000000000001 R09: 0000000000e14940 R10: 0000000000e14c10 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffc769fd080