rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: (detected by 0, t=10502 jiffies, g=17685, q=350 ncpus=2) rcu: All QSes seen, last rcu_preempt kthread activity 10411 (4294967984-4294957573), jiffies_till_next_fqs=1, root ->qsmask 0x0 rcu: rcu_preempt kthread starved for 10411 jiffies! g17685 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:27784 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5357 [inline] __schedule+0x1190/0x5de0 kernel/sched/core.c:6961 __schedule_loop kernel/sched/core.c:7043 [inline] schedule+0xe7/0x3a0 kernel/sched/core.c:7058 schedule_timeout+0x123/0x290 kernel/time/sleep_timeout.c:99 rcu_gp_fqs_loop+0x1ea/0xb00 kernel/rcu/tree.c:2083 rcu_gp_kthread+0x270/0x380 kernel/rcu/tree.c:2285 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x5d7/0x6f0 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 rcu: Stack dump where RCU GP kthread last ran: Sending NMI from CPU 0 to CPUs 1: yealink 6-1:36.0: urb_ctl_callback - urb status -71 NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 9198 Comm: syz.1.352 Not tainted 6.17.0-rc1-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:87 [inline] RIP: 0010:memory_is_nonzero mm/kasan/generic.c:104 [inline] RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline] RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline] RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline] RIP: 0010:kasan_check_range+0x15c/0x1b0 mm/kasan/generic.c:189 Code: c2 48 85 c0 75 ad 48 89 da 4c 89 d8 4c 29 da e9 46 ff ff ff 48 85 d2 74 18 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 0a 80 38 00 <74> f2 e9 75 ff ff ff 5b b8 01 00 00 00 5d 41 5c c3 cc cc cc cc b8 RSP: 0018:ffffc90000a08280 EFLAGS: 00000046 RAX: fffffbfff35c8329 RBX: fffffbfff35c8330 RCX: ffffffff819b7c4e RDX: fffffbfff35c8330 RSI: 0000000000000033 RDI: ffffffff9ae41948 RBP: fffffbfff35c8329 R08: 0000000000000000 R09: fffffbfff35c832f R10: ffffffff9ae4197a R11: 8000000162000033 R12: ffffffff9ae18ca0 R13: 0000000000005975 R14: ffffffff8e4ce900 R15: ffffc90000a08390 FS: 00007f427ac386c0(0000) GS:ffff8881247bd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff881191d58 CR3: 00000000798ef000 CR4: 00000000003526f0 Call Trace: __asan_memcpy+0x23/0x60 mm/kasan/shadow.c:105 copy_data kernel/printk/printk_ringbuffer.c:1851 [inline] prb_read kernel/printk/printk_ringbuffer.c:1936 [inline] _prb_read_valid+0x48e/0x890 kernel/printk/printk_ringbuffer.c:2113 prb_read_valid+0x78/0xa0 kernel/printk/printk_ringbuffer.c:2185 printk_get_next_message+0x15b/0x6d0 kernel/printk/printk.c:3005 console_emit_next_record kernel/printk/printk.c:3092 [inline] console_flush_all+0x6ea/0xc60 kernel/printk/printk.c:3226 __console_flush_and_unlock kernel/printk/printk.c:3285 [inline] console_unlock+0xd8/0x210 kernel/printk/printk.c:3325 vprintk_emit+0x418/0x6d0 kernel/printk/printk.c:2450 dev_vprintk_emit drivers/base/core.c:4914 [inline] dev_printk_emit+0xfa/0x140 drivers/base/core.c:4925 __dev_printk+0xf5/0x270 drivers/base/core.c:4937 _dev_err+0xe4/0x120 drivers/base/core.c:4980 urb_ctl_callback+0x1eb/0x2f0 drivers/input/misc/yealink.c:456 __usb_hcd_giveback_urb+0x38d/0x6e0 drivers/usb/core/hcd.c:1663 usb_hcd_giveback_urb+0x39b/0x450 drivers/usb/core/hcd.c:1747 dummy_timer+0x1814/0x3a30 drivers/usb/gadget/udc/dummy_hcd.c:1995 __run_hrtimer kernel/time/hrtimer.c:1761 [inline] __hrtimer_run_queues+0x202/0xad0 kernel/time/hrtimer.c:1825 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1842 handle_softirqs+0x216/0x8e0 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline] RIP: 0010:rcu_is_watching+0xd/0xc0 kernel/rcu/tree.c:751 Code: 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 53 65 ff 05 f3 7c 35 12 5e a1 f2 09 48 c7 c3 a8 62 d7 93 89 c5 83 f8 07 0f 87 82 00 00 RSP: 0018:ffffc9001dbbf610 EFLAGS: 00000283 RAX: 0000000000000001 RBX: ffffffff8e5c11e0 RCX: ffffc9001dbc0001 RDX: 0000000000000000 RSI: ffffffff816ae8a4 RDI: ffffffff8e5c11e0 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000005d06 R12: ffffffff816ae8a4 R13: ffffc9001dbbf6e0 R14: ffffc9001dbbff08 R15: ffffc9001dbbf714 trace_lock_release include/trace/events/lock.h:69 [inline] lock_release+0x201/0x2f0 kernel/locking/lockdep.c:5879 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:871 [inline] class_rcu_destructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0x3f9/0x20a0 arch/x86/kernel/unwind_orc.c:479 arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122 save_stack+0x160/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x84/0x1a0 mm/page_owner.c:308 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1395 [inline] __free_frozen_pages+0x7d5/0x10f0 mm/page_alloc.c:2895 discard_slab mm/slub.c:2753 [inline] __put_partials+0x165/0x1c0 mm/slub.c:3218 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x4d/0x120 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:340 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4180 [inline] slab_alloc_node mm/slub.c:4229 [inline] kmem_cache_alloc_noprof+0x1cb/0x3b0 mm/slub.c:4236 taskstats_tgid_alloc kernel/taskstats.c:576 [inline] taskstats_exit+0x654/0xbe0 kernel/taskstats.c:615 do_exit+0x5dc/0x2bf0 kernel/exit.c:936 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102 get_signal+0x2673/0x26d0 kernel/signal.c:3034 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop+0x84/0x110 kernel/entry/common.c:40 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4279d8ebe9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f427ac380e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f4279fb6098 RCX: 00007f4279d8ebe9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f4279fb6098 RBP: 00007f4279fb6090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4279fb6128 R14: 00007fffb7c2cd90 R15: 00007fffb7c2ce78 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_ctl_callback - urb status -71 yealink 6-1:36.0: urb_irq_callback - urb status -71 yealink 6-1:36.0: unexpected response 0 yealink 6-1:36.0: urb_irq_callback - usb_submit_urb failed -19