Similarly bug with Speed Dragon USB 3.0 10/100/1000Mbps Gigabit Ethernet Dongle
Kernel: 3.14.14-gentoo
OS: Gentoo Base System release 2.2

dmesg output:
[15564.878306] usb 2-3: USB disconnect, device number 2
[15564.878512] ax88179_178a 2-3:1.0 enp0s20u3: unregister 'ax88179_178a' usb-0000:00:14.0-3, ASIX AX88179 USB 3.0 Gigabit Ethernet
[15564.878524] ax88179_178a 2-3:1.0 enp0s20u3: Failed to read reg index 0x0002: -19
[15564.878528] ax88179_178a 2-3:1.0 enp0s20u3: Failed to write reg index 0x0002: -19
[15564.893360] ax88179_178a 2-3:1.0 (unregistered net_device): Failed to write reg index 0x0002: -19
[15564.893367] ax88179_178a 2-3:1.0 (unregistered net_device): Failed to write reg index 0x0001: -19
[15564.893371] ax88179_178a 2-3:1.0 (unregistered net_device): Failed to write reg index 0x0002: -19
[15565.100787] usb 2-3: new SuperSpeed USB device number 3 using xhci_hcd
[15565.115018] usb 2-3: New USB device found, idVendor=0b95, idProduct=1790
[15565.115023] usb 2-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[15565.115026] usb 2-3: Product: AX88179
[15565.115028] usb 2-3: Manufacturer: ASIX Elec. Corp.
[15565.115031] usb 2-3: SerialNumber: 0000133B992E37
[15565.429907] ax88179_178a 2-3:1.0 eth0: register 'ax88179_178a' at usb-0000:00:14.0-3, ASIX AX88179 USB 3.0 Gigabit Ethernet, 00:13:3b:99:2e:37
[15565.458894] systemd-udevd[10806]: renamed network interface eth0 to enp0s20u3
[15565.782606] IPv6: ADDRCONF(NETDEV_UP): enp0s20u3: link is not ready
[15565.861783] ax88179_178a 2-3:1.0 enp0s20u3: ax88179 - Link status is: 1
[15567.527107] ax88179_178a 2-3:1.0 enp0s20u3: ax88179 - Link status is: 1
[15567.528657] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s20u3: link becomes ready
[29626.098636] usb 2-3: USB disconnect, device number 3
[29626.099058] ax88179_178a 2-3:1.0 enp0s20u3: unregister 'ax88179_178a' usb-0000:00:14.0-3, ASIX AX88179 USB 3.0 Gigabit Ethernet
[29626.099088] ax88179_178a 2-3:1.0 enp0s20u3: Failed to read reg index 0x0002: -19
[29626.099097] ax88179_178a 2-3:1.0 enp0s20u3: Failed to write reg index 0x0002: -19
[29626.112680] ax88179_178a 2-3:1.0 (unregistered net_device): Failed to write reg index 0x0002: -19
[29626.112686] ax88179_178a 2-3:1.0 (unregistered net_device): Failed to write reg index 0x0001: -19
[29626.112690] ax88179_178a 2-3:1.0 (unregistered net_device): Failed to write reg index 0x0002: -19
[29626.319548] usb 2-3: new SuperSpeed USB device number 4 using xhci_hcd
[29626.337384] usb 2-3: New USB device found, idVendor=0b95, idProduct=1790
[29626.337389] usb 2-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[29626.337391] usb 2-3: Product: AX88179
[29626.337394] usb 2-3: Manufacturer: ASIX Elec. Corp.
[29626.337396] usb 2-3: SerialNumber: 0000133B992E37
[29626.651791] ax88179_178a 2-3:1.0 eth0: register 'ax88179_178a' at usb-0000:00:14.0-3, ASIX AX88179 USB 3.0 Gigabit Ethernet, 00:13:3b:99:2e:37
[29626.691929] systemd-udevd[14374]: renamed network interface eth0 to enp0s20u3
[29627.021759] IPv6: ADDRCONF(NETDEV_UP): enp0s20u3: link is not ready
[29627.138597] ax88179_178a 2-3:1.0 enp0s20u3: ax88179 - Link status is: 1
[29628.803882] ax88179_178a 2-3:1.0 enp0s20u3: ax88179 - Link status is: 1
[29628.805626] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s20u3: link becomes ready
[48701.220818] traps: polkitd[1395] general protection ip:7f64cc20a412 sp:7fff4b8dba90 error:0 in libmozjs-17.0.so[7f64cc0dd000+37b000]
[91357.894326] usb 2-3: USB disconnect, device number 4
[91357.894594] ax88179_178a 2-3:1.0 enp0s20u3: unregister 'ax88179_178a' usb-0000:00:14.0-3, ASIX AX88179 USB 3.0 Gigabit Ethernet
[91357.894608] ax88179_178a 2-3:1.0 enp0s20u3: Failed to read reg index 0x0002: -19
[91357.894613] ax88179_178a 2-3:1.0 enp0s20u3: Failed to write reg index 0x0002: -19
[91357.908264] ax88179_178a 2-3:1.0 (unregistered net_device): Failed to write reg index 0x0002: -19
[91357.908271] ax88179_178a 2-3:1.0 (unregistered net_device): Failed to write reg index 0x0001: -19
[91357.908274] ax88179_178a 2-3:1.0 (unregistered net_device): Failed to write reg index 0x0002: -19
[91358.114633] usb 2-3: new SuperSpeed USB device number 5 using xhci_hcd
[91358.128272] usb 2-3: New USB device found, idVendor=0b95, idProduct=1790
[91358.128279] usb 2-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[91358.128283] usb 2-3: Product: AX88179
[91358.128287] usb 2-3: Manufacturer: ASIX Elec. Corp.
[91358.128290] usb 2-3: SerialNumber: 0000133B992E37
[91358.444081] ax88179_178a 2-3:1.0 eth0: register 'ax88179_178a' at usb-0000:00:14.0-3, ASIX AX88179 USB 3.0 Gigabit Ethernet, 00:13:3b:99:2e:37
[91358.472108] systemd-udevd[19006]: renamed network interface eth0 to enp0s20u3
[91358.798390] IPv6: ADDRCONF(NETDEV_UP): enp0s20u3: link is not ready
[91358.916962] ax88179_178a 2-3:1.0 enp0s20u3: ax88179 - Link status is: 1
[91360.838454] ax88179_178a 2-3:1.0 enp0s20u3: ax88179 - Link status is: 1
[91360.840243] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s20u3: link becomes ready
[99624.368819] usb 2-3: USB disconnect, device number 5
[99624.369212] ax88179_178a 2-3:1.0 enp0s20u3: unregister 'ax88179_178a' usb-0000:00:14.0-3, ASIX AX88179 USB 3.0 Gigabit Ethernet
[99624.369251] ax88179_178a 2-3:1.0 enp0s20u3: Failed to read reg index 0x0002: -19
[99624.369260] ax88179_178a 2-3:1.0 enp0s20u3: Failed to write reg index 0x0002: -19
[99624.381796] ax88179_178a 2-3:1.0 (unregistered net_device): Failed to write reg index 0x0002: -19
[99624.381803] ax88179_178a 2-3:1.0 (unregistered net_device): Failed to write reg index 0x0001: -19
[99624.381807] ax88179_178a 2-3:1.0 (unregistered net_device): Failed to write reg index 0x0002: -19