INFO: task kworker/1:5:5150 blocked for more than 151 seconds. Not tainted 6.10.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:5 state:D stack:21488 pid:5150 tgid:5150 ppid:2 flags:0x00004000 Workqueue: events nsim_fib_event_work Call Trace: context_switch kernel/sched/core.c:5407 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6748 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6927 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6951 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 unwind_next_frame+0x2124/0x2a00 arch/x86/kernel/unwind_orc.c:672 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:312 [inline] __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:3940 [inline] slab_alloc_node mm/slub.c:4002 [inline] kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4009 fill_pool lib/debugobjects.c:168 [inline] debug_objects_fill_pool+0x5fa/0x9b0 lib/debugobjects.c:615 debug_object_assert_init+0x12e/0x440 lib/debugobjects.c:893 debug_timer_assert_init kernel/time/timer.c:846 [inline] debug_assert_init kernel/time/timer.c:891 [inline] __mod_timer+0x10d/0xeb0 kernel/time/timer.c:1072 schedule_timeout+0x1b9/0x310 kernel/time/timer.c:2580 schedule_timeout_uninterruptible kernel/time/timer.c:2615 [inline] msleep+0xa2/0xe0 kernel/time/timer.c:2736 nsim_fib6_rt_add drivers/net/netdevsim/fib.c:693 [inline] nsim_fib6_rt_insert drivers/net/netdevsim/fib.c:759 [inline] nsim_fib6_event drivers/net/netdevsim/fib.c:856 [inline] nsim_fib_event drivers/net/netdevsim/fib.c:889 [inline] nsim_fib_event_work+0x2e2c/0x4130 drivers/net/netdevsim/fib.c:1492 process_one_work kernel/workqueue.c:3248 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3329 worker_thread+0x86d/0xd50 kernel/workqueue.c:3409 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/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: 2 locks held by kworker/1:0/25: 1 lock held by khungtaskd/30: #0: ffffffff8e333f60 (rcu_read_lock ){....}-{1:2} , at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] , at: rcu_read_lock include/linux/rcupdate.h:781 [inline] , at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614 2 locks held by kworker/1:1/45: 2 locks held by kworker/1:1H/57: 4 locks held by kworker/u8:5/1056: #0: ffff888015ed5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline] ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329 #1: ffffc90004877d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline] #1: ffffc90004877d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329 #2: ffffffff8f5ddfd0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:594 #3: ffffffff8f5ea808 (rtnl_mutex){+.+.}-{3:3}, at: cleanup_net+0x6af/0xcc0 net/core/net_namespace.c:630 3 locks held by kworker/R-ipv6_/2622: #0: ffff88802a947948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline] #0: ffff88802a947948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329 #1: ffffc90009b27ca0 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline] ffffc90009b27ca0 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329 #2: ffffffff8f5ea808 (rtnl_mutex){+.+.}-{3:3} , at: addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4193 2 locks held by dhcpcd/4759: #0: ffff888063698678 (nlk_cb_mutex-ROUTE){+.+.}-{3:3}, at: __netlink_dump_start+0x119/0x780 net/netlink/af_netlink.c:2418 #1: ffffffff8f5ea808 (rtnl_mutex){+.+.}-{3:3}, at: netlink_dump+0x5d3/0xe50 net/netlink/af_netlink.c:2336 2 locks held by getty/4852: #0: ffff88802b52b0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90002f162f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211 7 locks held by kworker/1:4/5149: 4 locks held by kworker/1:5/5150: #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline] ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329 #1: ffffc900046f7d00 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline] #1: ffffc900046f7d00 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329 #2: ffff88802a6dd240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x2d1/0x4130 drivers/net/netdevsim/fib.c:1489 #3: ffffffff8ea444c0 (fill_pool_map-wait-type-override){+.+.}-{3:3}, at: debug_objects_fill_pool+0x80/0x9b0 lib/debugobjects.c:614 4 locks held by kworker/1:6/5151: 4 locks held by udevd/5440: #0: ffff888066bb4418 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xb7/0xd60 fs/seq_file.c:182 #1: ffff8880629d8488 ( &of->mutex #2 ){+.+.}-{3:3} , at: kernfs_seq_start+0x53/0x3b0 fs/kernfs/file.c:154 #2: ffff8880290d4d28 ( kn->active #28 ){.+.+}-{0:0} , at: kernfs_seq_start+0x72/0x3b0 fs/kernfs/file.c:155 #3: ffff888077322190 (&dev->mutex){....}-{3:3} , at: device_lock_interruptible include/linux/device.h:1014 [inline] , at: serial_show+0x26/0xa0 drivers/usb/core/sysfs.c:143 1 lock held by syz-executor/6466: #0: ffffffff8f5ea808 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline] ffffffff8f5ea808 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3500 1 lock held by syz-executor/6504: #0: ffffffff8f5ea808 ( rtnl_mutex ){+.+.}-{3:3} , at: tun_detach drivers/net/tun.c:698 [inline] , at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3500 1 lock held by syz-executor/7536: #0: ffffffff8f5ea808 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline] ffffffff8f5ea808 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3500 3 locks held by syz-executor/7630: #0: ffffffff8f650c70 ( cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218 #1: ffffffff8f650b28 ( genl_mutex ){+.+.}-{3:3} , at: genl_lock net/netlink/genetlink.c:35 [inline] , at: genl_op_lock net/netlink/genetlink.c:60 [inline] , at: genl_rcv_msg+0x121/0xec0 net/netlink/genetlink.c:1209 #2: ffffffff8f5ea808 ( rtnl_mutex ){+.+.}-{3:3} , at: wiphy_register+0x1d26/0x2b30 net/wireless/core.c:962 1 lock held by syz-executor/7654: #0: ffffffff8f5ea808 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x1180 net/core/rtnetlink.c:6632 2 locks held by syz.0.492/7822: #0: ffff88807ab2e810 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:791 [inline] (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release net/socket.c:658 [inline] (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: sock_close+0x90/0x240 net/socket.c:1421 #1: ffffffff8f5ea808 ( rtnl_mutex ){+.+.}-{3:3} , at: raw_release+0x1b8/0x8a0 net/can/raw.c:415 2 locks held by syz-executor/7846: #0: ffffffff8f5ddfd0 ( pernet_ops_rwsem ){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8f5ea808 (rtnl_mutex){+.+.}-{3:3} , at: register_nexthop_notifier+0x84/0x290 net/ipv4/nexthop.c:3871 2 locks held by syz-executor/7848: #0: ffffffff8f5ddfd0 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8f5ea808 (rtnl_mutex){+.+.}-{3:3}, at: register_nexthop_notifier+0x84/0x290 net/ipv4/nexthop.c:3871 2 locks held by syz-executor/7851: #0: ffffffff8f5ddfd0 ( pernet_ops_rwsem ){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8f5ea808 ( rtnl_mutex){+.+.}-{3:3}, at: register_nexthop_notifier+0x84/0x290 net/ipv4/nexthop.c:3871 2 locks held by syz-executor/7854: #0: ffffffff8f5ddfd0 ( pernet_ops_rwsem ){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8f5ea808 ( rtnl_mutex){+.+.}-{3:3}, at: register_nexthop_notifier+0x84/0x290 net/ipv4/nexthop.c:3871 2 locks held by syz-executor/7858: #0: ffffffff8f5ddfd0 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8f5ea808 (rtnl_mutex){+.+.}-{3:3}, at: register_nexthop_notifier+0x84/0x290 net/ipv4/nexthop.c:3871 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 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:223 [inline] watchdog+0xfde/0x1020 kernel/hung_task.c:379 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: yealink 3-1:36.0: urb_irq_callback - urb status -71 NMI backtrace for cpu 1 CPU: 1 PID: 5151 Comm: kworker/1:6 Not tainted 6.10.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Workqueue: events linkwatch_event RIP: 0010:delay_tsc+0x5c/0xe0 arch/x86/lib/delay.c:79 Code: 90 48 89 d5 48 c1 e5 20 48 09 c5 48 29 dd 4c 39 f5 73 67 bf 01 00 00 00 e8 61 1f e3 f5 65 8b 05 12 56 81 74 85 c0 74 2f f3 90 01 00 00 00 e8 aa 1d e3 f5 e8 25 f5 03 00 41 39 c7 75 20 0f 01 RSP: 0018:ffffc90000a17218 EFLAGS: 00000002 RAX: 0000000000010104 RBX: 000000e8c11285bb RCX: 0000000000010105 RDX: 00000000000000e8 RSI: ffffffff8c202860 RDI: 0000000000000001 RBP: 0000000000000703 R08: ffffffff853c15aa R09: 1ffff11004001046 R10: dffffc0000000000 R11: ffffffff8b827e60 R12: dffffc0000000000 R13: 00000000000026d4 R14: 0000000000000899 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff8f81afd8 CR3: 000000000e132000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: wait_for_lsr drivers/tty/serial/8250/8250_port.c:2074 [inline] serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3315 [inline] serial8250_console_write+0x104e/0x1770 drivers/tty/serial/8250/8250_port.c:3393 console_emit_next_record kernel/printk/printk.c:2913 [inline] console_flush_all+0x865/0xfd0 kernel/printk/printk.c:2979 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3048 vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2348 dev_vprintk_emit+0x2ae/0x330 drivers/base/core.c:4909 dev_printk_emit+0xdd/0x120 drivers/base/core.c:4920 _dev_err+0x122/0x170 drivers/base/core.c:4975 urb_irq_callback+0x37e/0x5b0 drivers/input/misc/yealink.c:416 __usb_hcd_giveback_urb+0x42c/0x6e0 drivers/usb/core/hcd.c:1650 dummy_timer+0x830/0x45d0 drivers/usb/gadget/udc/dummy_hcd.c:1987 __run_hrtimer kernel/time/hrtimer.c:1689 [inline] __hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1753 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline] RIP: 0010:write_comp_data kernel/kcov.c:236 [inline] RIP: 0010:__sanitizer_cov_trace_switch+0xba/0x120 kernel/kcov.c:341 Code: 48 ff c2 49 39 d2 74 71 4c 8b 74 d6 10 65 8b 05 04 a5 6d 7e a9 00 01 ff 00 74 11 a9 00 01 00 00 74 de 41 83 bb 1c 16 00 00 00 <74> d4 41 8b 83 f8 15 00 00 83 f8 03 75 c8 49 8b 8b 00 16 00 00 45 RSP: 0018:ffffc90000a182e0 EFLAGS: 00000246 RAX: 0000000000000102 RBX: 0000000000000002 RCX: ffff88802a310000 RDX: 0000000000000000 RSI: ffffffff8e1a13d0 RDI: 0000000000000002 RBP: ffffffff903c77d9 R08: 0000000000000005 R09: ffffffff8140ffe6 R10: 0000000000000003 R11: ffff88802a310000 R12: ffffffff903c77d8 R13: dffffc0000000000 R14: 0000000000000002 R15: 1ffff9200014307c unwind_next_frame+0xff6/0x2a00 arch/x86/kernel/unwind_orc.c:581 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:312 [inline] __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:3940 [inline] slab_alloc_node mm/slub.c:4002 [inline] kmem_cache_alloc_node_noprof+0x16b/0x320 mm/slub.c:4045 kmalloc_reserve+0xa8/0x2a0 net/core/skbuff.c:575 __alloc_skb+0x1f3/0x440 net/core/skbuff.c:666 __netdev_alloc_skb+0x105/0x560 net/core/skbuff.c:730 netdev_alloc_skb include/linux/skbuff.h:3319 [inline] dev_alloc_skb include/linux/skbuff.h:3332 [inline] __ieee80211_beacon_get+0x998/0x15c0 net/mac80211/tx.c:5471 ieee80211_beacon_get_tim+0xb4/0x320 net/mac80211/tx.c:5593 ieee80211_beacon_get include/net/mac80211.h:5562 [inline] mac80211_hwsim_beacon_tx+0x39d/0x850 drivers/net/wireless/virtual/mac80211_hwsim.c:2302 __iterate_interfaces+0x223/0x4c0 net/mac80211/util.c:772 ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:808 mac80211_hwsim_beacon+0xd4/0x1f0 drivers/net/wireless/virtual/mac80211_hwsim.c:2336 __run_hrtimer kernel/time/hrtimer.c:1689 [inline] __hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1753 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1770 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:deref_stack_reg arch/x86/kernel/unwind_orc.c:403 [inline] RIP: 0010:unwind_next_frame+0x10d8/0x2a00 arch/x86/kernel/unwind_orc.c:585 Code: 87 a9 01 00 00 4d 39 e5 0f 86 a0 01 00 00 49 8d 44 24 08 48 39 c8 0f 86 ad 01 00 00 4c 39 e8 0f 87 a4 01 00 00 e8 d8 28 55 00 <4d> 89 fd 4c 8b 7c 24 08 e9 69 02 00 00 48 89 ac 24 80 00 00 00 4c RSP: 0018:ffffc90004706a88 EFLAGS: 00000293 RAX: ffffffff814100c8 RBX: 0000000000000001 RCX: ffff88802a310000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 1ffff920008e0d6e R08: ffffffff8141008d R09: ffffffff8140ffe6 R10: 0000000000000003 R11: ffff88802a310000 R12: ffffc90004707dc8 R13: ffffc90004708000 R14: 1ffff920008e0d6d R15: dffffc0000000000 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:370 [inline] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387 kasan_kmalloc include/linux/kasan.h:211 [inline] kmalloc_trace_noprof+0x19c/0x2c0 mm/slub.c:4154 kmalloc_noprof include/linux/slab.h:660 [inline] kzalloc_noprof include/linux/slab.h:778 [inline] ref_tracker_alloc+0x14b/0x490 lib/ref_tracker.c:203 __netdev_tracker_alloc include/linux/netdevice.h:4038 [inline] netdev_tracker_alloc include/linux/netdevice.h:4050 [inline] netdev_get_by_index+0x7a/0xb0 net/core/dev.c:912 fib6_nh_init+0x1d8/0x2180 net/ipv6/route.c:3545 ip6_route_info_create+0x99e/0x12b0 net/ipv6/route.c:3811 ip6_route_add+0x28/0x160 net/ipv6/route.c:3855 addrconf_add_mroute net/ipv6/addrconf.c:2549 [inline] addrconf_add_dev+0x35b/0x540 net/ipv6/addrconf.c:2567 addrconf_dev_config net/ipv6/addrconf.c:3481 [inline] addrconf_init_auto_addrs+0x85f/0xeb0 net/ipv6/addrconf.c:3569 addrconf_notify+0xaff/0x1020 net/ipv6/addrconf.c:3742 notifier_call_chain+0x19f/0x3e0 kernel/notifier.c:93 netdev_state_change+0x11f/0x1a0 net/core/dev.c:1374 linkwatch_do_dev+0x112/0x170 net/core/link_watch.c:177 __linkwatch_run_queue+0x44f/0x6c0 net/core/link_watch.c:234 linkwatch_event+0x4c/0x60 net/core/link_watch.c:277 process_one_work kernel/workqueue.c:3248 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3329 worker_thread+0x86d/0xd50 kernel/workqueue.c:3409 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 yealink 3-1:36.0: unexpected response 0 yealink 3-1:36.0: urb_ctl_callback - urb status -71 yealink 3-1:36.0: urb_irq_callback - urb status -71 yealink 3-1:36.0: unexpected response 0 yealink 3-1:36.0: urb_ctl_callback - urb status -71 yealink 3-1:36.0: urb_irq_callback - urb status -71 yealink 3-1:36.0: unexpected response 0 yealink 3-1:36.0: urb_ctl_callback - urb status -71 yealink 3-1:36.0: urb_irq_callback - urb status -71 yealink 3-1:36.0: unexpected response 0 yealink 3-1:36.0: urb_ctl_callback - urb status -71