INFO: task kworker/u8:6:3439 blocked for more than 143 seconds. Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:6 state:D stack:21264 pid:3439 tgid:3439 ppid:2 flags:0x00004000 Workqueue: events_unbound fsnotify_connector_destroy_workfn Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_timeout+0xb0/0x290 kernel/time/sleep_timeout.c:75 do_wait_for_common kernel/sched/completion.c:95 [inline] __wait_for_common kernel/sched/completion.c:116 [inline] wait_for_common kernel/sched/completion.c:127 [inline] wait_for_completion+0x355/0x620 kernel/sched/completion.c:148 __synchronize_srcu+0x357/0x400 kernel/rcu/srcutree.c:1433 fsnotify_connector_destroy_workfn+0x44/0xb0 fs/notify/mark.c:318 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa68/0x1840 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task kworker/u8:8:3469 blocked for more than 144 seconds. Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:8 state:D stack:20216 pid:3469 tgid:3469 ppid:2 flags:0x00004000 Workqueue: events_unbound fsnotify_mark_destroy_workfn Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_timeout+0xb0/0x290 kernel/time/sleep_timeout.c:75 do_wait_for_common kernel/sched/completion.c:95 [inline] __wait_for_common kernel/sched/completion.c:116 [inline] wait_for_common kernel/sched/completion.c:127 [inline] wait_for_completion+0x355/0x620 kernel/sched/completion.c:148 __synchronize_srcu+0x357/0x400 kernel/rcu/srcutree.c:1433 fsnotify_mark_destroy_workfn+0x146/0x350 fs/notify/mark.c:988 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa68/0x1840 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Showing all locks held in the system: 5 locks held by kworker/0:0/8: 1 lock held by khungtaskd/30: #0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744 3 locks held by kworker/u8:3/52: 2 locks held by kworker/u8:4/62: 2 locks held by kworker/u8:6/3439: #0: ffff88801ac81148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline] #0: ffff88801ac81148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310 #1: ffffc9000cc57d00 (connector_reaper_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline] #1: ffffc9000cc57d00 (connector_reaper_work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310 2 locks held by kworker/u8:7/3451: #0: ffff88801ac81148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline] #0: ffff88801ac81148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310 #1: ffffc9000d047d00 ((quota_release_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline] #1: ffffc9000d047d00 ((quota_release_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310 2 locks held by kworker/u8:8/3469: #0: ffff88801ac81148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline] #0: ffff88801ac81148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310 #1: ffffc9000d107d00 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline] #1: ffffc9000d107d00 ((reaper_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310 2 locks held by getty/5577: #0: ffff8880350510a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90002fee2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211 1 lock held by syz-executor/5826: #0: ffff88807bfea0e0 (&type->s_umount_key#32){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline] #0: ffff88807bfea0e0 (&type->s_umount_key#32){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff88807bfea0e0 (&type->s_umount_key#32){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505 1 lock held by syz-executor/5827: #0: ffff8880295340e0 (&type->s_umount_key#32){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline] #0: ffff8880295340e0 (&type->s_umount_key#32){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff8880295340e0 (&type->s_umount_key#32){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505 1 lock held by syz-executor/5836: #0: ffff888029dde0e0 (&type->s_umount_key#32){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline] #0: ffff888029dde0e0 (&type->s_umount_key#32){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff888029dde0e0 (&type->s_umount_key#32){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505 4 locks held by udevd/5887: #0: ffff888031a7bc30 (&p->lock){+.+.}-{4:4}, at: seq_read_iter+0xb4/0xd70 fs/seq_file.c:182 #1: ffff888045f9c088 (&of->mutex#2){+.+.}-{4:4}, at: kernfs_seq_start+0x53/0x3b0 fs/kernfs/file.c:154 #2: ffff888036ff42d8 (kn->active#5){++++}-{0:0}, at: kernfs_seq_start+0x72/0x3b0 fs/kernfs/file.c:155 #3: ffff888057745190 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline] #3: ffff888057745190 (&dev->mutex){....}-{4:4}, at: uevent_show+0x17d/0x340 drivers/base/core.c:2729 5 locks held by kworker/1:3/5888: #0: ffff888021292948 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline] #0: ffff888021292948 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310 #1: ffffc900042afd00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline] #1: ffffc900042afd00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310 #2: ffff888144bfa190 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline] #2: ffff888144bfa190 (&dev->mutex){....}-{4:4}, at: hub_event+0x1fe/0x5150 drivers/usb/core/hub.c:5849 #3: ffff8880578f6190 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline] #3: ffff8880578f6190 (&dev->mutex){....}-{4:4}, at: __device_attach+0x8e/0x520 drivers/base/dd.c:1005 #4: ffff88805609e160 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline] #4: ffff88805609e160 (&dev->mutex){....}-{4:4}, at: __device_attach+0x8e/0x520 drivers/base/dd.c:1005 2 locks held by kworker/0:7/5895: 3 locks held by kworker/1:5/5915: #0: ffff88801ac78948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline] #0: ffff88801ac78948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310 #1: ffffc90004227d00 (free_ipc_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline] #1: ffffc90004227d00 (free_ipc_work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310 #2: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:329 [inline] #2: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:976 2 locks held by kworker/0:8/5940: 5 locks held by kworker/1:8/5962: #0: ffff888021292948 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline] #0: ffff888021292948 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310 #1: ffffc90003057d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline] #1: ffffc90003057d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310 #2: ffff888144fa8190 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline] #2: ffff888144fa8190 (&dev->mutex){....}-{4:4}, at: hub_event+0x1fe/0x5150 drivers/usb/core/hub.c:5849 #3: ffff888057745190 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline] #3: ffff888057745190 (&dev->mutex){....}-{4:4}, at: __device_attach+0x8e/0x520 drivers/base/dd.c:1005 #4: ffff88805b2de160 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline] #4: ffff88805b2de160 (&dev->mutex){....}-{4:4}, at: __device_attach+0x8e/0x520 drivers/base/dd.c:1005 4 locks held by udevd/6004: #0: ffff8880296712f0 (&p->lock){+.+.}-{4:4}, at: seq_read_iter+0xb4/0xd70 fs/seq_file.c:182 #1: ffff888057682888 (&of->mutex#2){+.+.}-{4:4}, at: kernfs_seq_start+0x53/0x3b0 fs/kernfs/file.c:154 #2: ffff88807f8ae1e8 (kn->active#5){++++}-{0:0}, at: kernfs_seq_start+0x72/0x3b0 fs/kernfs/file.c:155 #3: ffff8880578f6190 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline] #3: ffff8880578f6190 (&dev->mutex){....}-{4:4}, at: uevent_show+0x17d/0x340 drivers/base/core.c:2729 3 locks held by syz.2.1020/8301: #0: ffffffff8f053b68 (bio_slab_lock){+.+.}-{4:4}, at: bio_put_slab block/bio.c:140 [inline] #0: ffffffff8f053b68 (bio_slab_lock){+.+.}-{4:4}, at: bioset_exit+0x42f/0x650 block/bio.c:1755 #1: ffffffff8e7d2ed0 (cpu_hotplug_lock){++++}-{0:0}, at: kmem_cache_destroy+0x3e/0x160 mm/slab_common.c:515 #2: ffffffff8ea20bb0 (slab_mutex){+.+.}-{4:4}, at: kmem_cache_destroy+0x4c/0x160 mm/slab_common.c:516 1 lock held by syz.4.1098/8499: #0: ffffffff8f053b68 (bio_slab_lock){+.+.}-{4:4}, at: bio_find_or_create_slab block/bio.c:122 [inline] #0: ffffffff8f053b68 (bio_slab_lock){+.+.}-{4:4}, at: bioset_init+0x23f/0x820 block/bio.c:1796 1 lock held by syz-executor/8653: #0: ffff888028ede0e0 (&type->s_umount_key#32){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline] #0: ffff888028ede0e0 (&type->s_umount_key#32){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff888028ede0e0 (&type->s_umount_key#32){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505 1 lock held by syz.5.1185/8712: #0: ffffffff8f053b68 (bio_slab_lock){+.+.}-{4:4}, at: bio_find_or_create_slab block/bio.c:122 [inline] #0: ffffffff8f053b68 (bio_slab_lock){+.+.}-{4:4}, at: bioset_init+0x23f/0x820 block/bio.c:1796 2 locks held by syz.6.1251/8871: #0: ffff8880574240e0 (&type->s_umount_key#63/1){+.+.}-{4:4}, at: alloc_super+0x221/0x9d0 fs/super.c:344 #1: ffffffff8ea20bb0 (slab_mutex){+.+.}-{4:4}, at: __kmem_cache_create_args+0x45/0x320 mm/slab_common.c:301 1 lock held by syz-executor/9018: #0: ffff888025aee0e0 (&type->s_umount_key#32){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline] #0: ffff888025aee0e0 (&type->s_umount_key#32){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline] #0: ffff888025aee0e0 (&type->s_umount_key#32){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505 1 lock held by syz.8.1409/9226: #0: ffffffff8f053b68 (bio_slab_lock){+.+.}-{4:4}, at: bio_find_or_create_slab block/bio.c:122 [inline] #0: ffffffff8f053b68 (bio_slab_lock){+.+.}-{4:4}, at: bioset_init+0x23f/0x820 block/bio.c:1796 2 locks held by syz-executor/9316: #0: ffff8880481b0d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_dev_do_close net/bluetooth/hci_core.c:480 [inline] #0: ffff8880481b0d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2697 #1: ffff8880481b0078 (&hdev->lock){+.+.}-{4:4}, at: hci_dev_close_sync+0x5c8/0x11c0 net/bluetooth/hci_sync.c:5200 2 locks held by syz-executor/9329: #0: ffff88803e8d4d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_dev_do_close net/bluetooth/hci_core.c:480 [inline] #0: ffff88803e8d4d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2697 #1: ffff88803e8d4078 (&hdev->lock){+.+.}-{4:4}, at: hci_dev_close_sync+0x5c8/0x11c0 net/bluetooth/hci_sync.c:5200 2 locks held by syz-executor/9348: #0: ffff888038368d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_dev_do_close net/bluetooth/hci_core.c:480 [inline] #0: ffff888038368d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2697 #1: ffff888038368078 (&hdev->lock){+.+.}-{4:4}, at: hci_dev_close_sync+0x5c8/0x11c0 net/bluetooth/hci_sync.c:5200 2 locks held by syz.2.1455/9353: #0: ffff888028bb0d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_dev_do_close net/bluetooth/hci_core.c:480 [inline] #0: ffff888028bb0d80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_unregister_dev+0x203/0x510 net/bluetooth/hci_core.c:2697 #1: ffff888028bb0078 (&hdev->lock){+.+.}-{4:4}, at: hci_dev_close_sync+0x5c8/0x11c0 net/bluetooth/hci_sync.c:5200 3 locks held by syz-executor/9355: #0: ffffffff8fca6810 (pernet_ops_rwsem){++++}-{4:4}, at: copy_net_ns+0x328/0x570 net/core/net_namespace.c:512 #1: ffffffff8fcb2cc8 (rtnl_mutex){+.+.}-{4:4}, at: setup_net+0x602/0x9e0 net/core/net_namespace.c:384 #2: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline] #2: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:976 ============================================= NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline] watchdog+0xff6/0x1040 kernel/hung_task.c:397 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 5895 Comm: kworker/0:7 Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: events_power_efficient neigh_periodic_work RIP: 0010:__lock_acquire+0x1ae/0x2100 kernel/locking/lockdep.c:5134 Code: 8f 48 0f af fb 41 89 fe 83 bc 24 e8 00 00 00 00 0f 85 2f 01 00 00 85 d2 0f 84 27 01 00 00 48 8b 44 24 40 48 8d 98 e0 0a 00 00 <83> fa 31 0f 83 cf 1c 00 00 48 8d 04 92 4c 8d 6c c3 f8 4c 89 eb 48 RSP: 0018:ffffc900000071f0 EFLAGS: 00000002 RAX: ffff888030fbda00 RBX: ffff888030fbe4e0 RCX: ffffffff9a3ab903 RDX: 0000000000000002 RSI: dffffc0000000000 RDI: 00000000000003ee RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: dffffc0000000000 R11: fffffbfff2033027 R12: ffff888030fbda00 R13: 0000000000000000 R14: 00000000000003ee R15: ffff888028a88018 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ff10ff8 CR3: 000000000e736000 CR4: 0000000000350ef0 Call Trace: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 dummy_urb_enqueue+0xf3/0x780 drivers/usb/gadget/udc/dummy_hcd.c:1279 usb_hcd_submit_urb+0x36e/0x1e80 drivers/usb/core/hcd.c:1533 ath9k_hif_usb_rx_cb+0x11f7/0x1590 drivers/net/wireless/ath/ath9k/hif_usb.c:722 __usb_hcd_giveback_urb+0x42e/0x6e0 drivers/usb/core/hcd.c:1650 dummy_timer+0x856/0x4620 drivers/usb/gadget/udc/dummy_hcd.c:1993 __run_hrtimer kernel/time/hrtimer.c:1739 [inline] __hrtimer_run_queues+0x59d/0xd30 kernel/time/hrtimer.c:1803 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1820 handle_softirqs+0x2d6/0x9b0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__schedule+0x4/0x4c30 kernel/sched/core.c:6637 Code: c1 0f 8c 11 ff ff ff 48 8b 7c 24 18 e8 65 53 3c f6 e9 02 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec e0 01 RSP: 0018:ffffc900031378f8 EFLAGS: 00000286 RAX: 81a557468e706400 RBX: 1ffff92000626f28 RCX: ffffffff817b378a RDX: dffffc0000000000 RSI: ffffffff8c0a98e0 RDI: 0000000000000001 RBP: ffffc900031379c0 R08: ffffffff942a494f R09: 1ffffffff2854929 R10: dffffc0000000000 R11: fffffbfff285492a R12: 1ffff92000626f20 R13: 1ffff92000626f24 R14: ffffc90003137920 R15: dffffc0000000000 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7078 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:should_resched arch/x86/include/asm/preempt.h:103 [inline] RIP: 0010:__local_bh_enable_ip+0x170/0x200 kernel/softirq.c:396 Code: 8c e8 e4 13 67 0a 65 66 8b 05 f4 00 a2 7e 66 85 c0 75 5d bf 01 00 00 00 e8 5d bd 0b 00 e8 08 69 45 00 fb 65 8b 05 b8 00 a2 7e <85> c0 75 05 e8 37 82 a8 ff 48 c7 44 24 20 0e 36 e0 45 49 c7 04 1c RSP: 0018:ffffc90003137a80 EFLAGS: 00000282 RAX: 0000000080000000 RBX: 1ffff92000626f54 RCX: ffffffff817b378a RDX: dffffc0000000000 RSI: ffffffff8c0a98e0 RDI: ffffffff8c5fb0e0 RBP: ffffc90003137b28 R08: ffffffff942a494f R09: 1ffffffff2854929 R10: dffffc0000000000 R11: fffffbfff285492a R12: dffffc0000000000 R13: 1ffff92000626f58 R14: ffffc90003137ac0 R15: 0000000000000201 neigh_periodic_work+0xbcb/0xde0 net/core/neighbour.c:968 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa68/0x1840 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244