rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: {
 1-....
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
Workqueue: usb_hub_wq hub_event
RIP: 0010:native_apic_mem_write+0xc/0x20 arch/x86/include/asm/apic.h:99
RSP: 0018:ffffc900001b8ab0 EFLAGS: 00000046
RAX: ffffffff8112dbe0 RBX: ffff8881f63282c0 RCX: 0000000000000020
RDX: ffff88811eb00000 RSI: 000000000000003e RDI: 0000000000000380
RBP: 000000000000003e R08: 0000000000000005 R09: 000000000000003f
R10: 0000000000000020 R11: 0000000000000000 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000020 R15: ffffed103ec6505d
FS:  0000000000000000(0000) GS:ffff8881f6300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb03a111000 CR3: 0000000008aa0000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 </NMI>
 apic_write arch/x86/include/asm/apic.h:410 [inline]
 lapic_next_event+0x10/0x20 arch/x86/kernel/apic/apic.c:415
 tick_program_event+0xa9/0x140 kernel/time/tick-oneshot.c:44
 __hrtimer_reprogram kernel/time/hrtimer.c:679 [inline]
 __hrtimer_reprogram kernel/time/hrtimer.c:653 [inline]
 hrtimer_force_reprogram kernel/time/hrtimer.c:697 [inline]
 __hrtimer_start_range_ns kernel/time/hrtimer.c:1269 [inline]
 hrtimer_start_range_ns+0x870/0xe60 kernel/time/hrtimer.c:1302
 hrtimer_start include/linux/hrtimer.h:275 [inline]
 dummy_timer+0x283a/0x38d0 drivers/usb/gadget/udc/dummy_hcd.c:1998
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1815
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x8b/0xb0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
Code: 00 4d 85 e4 0f 85 8e 00 00 00 e8 59 cb 1e 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 b7 cd 1e 00 48 85 db 0f 85 9a 00 00 00 <e8> 39 cb 1e 00 45 31 c9 41 b8 01 00 00 00 31 c9 48 8d 05 00 00 00
RSP: 0018:ffffc90003776ea8 EFLAGS: 00000246
RAX: 0000000000100000 RBX: 0000000000000000 RCX: ffffc9000d864000
RDX: 0000000000100000 RSI: ffffffff81348116 RDI: 0000000000000007
RBP: 000000000000001d R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000200
R13: ffff8881016b1d00 R14: ffffffff874a87c0 R15: ffffc90003776f28
 _printk+0xc8/0x100 kernel/printk/printk.c:2373
 ufx_config_sys_clk drivers/video/fbdev/smscufx.c:391 [inline]
 ufx_usb_probe+0x263d/0x39c0 drivers/video/fbdev/smscufx.c:1655
 usb_probe_interface+0x309/0x9d0 drivers/usb/core/driver.c:399
 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:829
 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:957
 bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:457
 __device_attach+0x1e8/0x4b0 drivers/base/dd.c:1029
 device_add+0x114b/0x1a70 drivers/base/core.c:3682
 usb_generic_driver_probe+0xb1/0x110 drivers/usb/core/generic.c:254
 usb_probe_device+0xec/0x3e0 drivers/usb/core/driver.c:294
 call_driver_probe drivers/base/dd.c:578 [inline]
 really_probe+0x23e/0xa90 drivers/base/dd.c:657
 bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:457
 __device_attach+0x1e8/0x4b0 drivers/base/dd.c:1029
 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:532
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
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yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71
yealink 2-1:36.0: unexpected response 0
yealink 2-1:36.0: urb_ctl_callback - urb status -71