Comment 369 for bug 1667750

I'm using a 2.5gb ethernet usb device and getting this error intermittently (a dozen times per day).

$ uname -a
Linux hephaestus 5.4.0-135-generic #152-Ubuntu SMP Wed Nov 23 20:19:22 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

$ lsusb
<snip>
Bus 003 Device 016: ID 0bda:8156 Realtek Semiconductor Corp. USB 10/100/1G/2.5G

This is what plays out via /var/log/syslog each time:

Dec 21 10:26:47 hephaestus kernel: [346923.166782] usb 3-4: USB disconnect, device number 15
Dec 21 10:26:47 hephaestus kernel: [346923.166913] xhci_hcd 0000:00:14.0: WARN Set TR Deq Ptr cmd failed due to incorrect slot or ep state.
Dec 21 10:26:47 hephaestus kernel: [346923.166927] cdc_ncm 3-4:2.0 eth1: unregister 'cdc_ncm' usb-0000:00:14.0-4, CDC NCM
Dec 21 10:26:47 hephaestus kernel: [346923.167071] xhci_hcd 0000:00:14.0: WARN Set TR Deq Ptr cmd failed due to incorrect slot or ep state.
Dec 21 10:26:47 hephaestus kernel: [346923.170644] xhci_hcd 0000:00:14.0: WARN Set TR Deq Ptr cmd failed due to incorrect slot or ep state.
Dec 21 10:26:47 hephaestus dhclient[320734]: receive_packet failed on eth1: Network is down
Dec 21 10:26:47 hephaestus systemd[1]: Stopping ifup for eth1...
Dec 21 10:26:47 hephaestus dhclient[325522]: Killed old client process
Dec 21 10:26:47 hephaestus ifdown[325522]: Killed old client process
Dec 21 10:26:47 hephaestus kernel: [346923.478913] usb 3-4: new SuperSpeed Gen 1 USB device number 16 using xhci_hcd
Dec 21 10:26:47 hephaestus kernel: [346923.499567] usb 3-4: New USB device found, idVendor=0bda, idProduct=8156, bcdDevice=31.00
Dec 21 10:26:47 hephaestus kernel: [346923.499573] usb 3-4: New USB device strings: Mfr=1, Product=2, SerialNumber=6
Dec 21 10:26:47 hephaestus kernel: [346923.499577] usb 3-4: Product: USB 10/100/1G/2.5G LAN
Dec 21 10:26:47 hephaestus kernel: [346923.499580] usb 3-4: Manufacturer: Realtek
Dec 21 10:26:47 hephaestus kernel: [346923.499583] usb 3-4: SerialNumber: 001000001
Dec 21 10:26:47 hephaestus kernel: [346923.523736] cdc_ncm 3-4:2.0: MAC-Address: xx:xx:xx:xx:xx:xx
Dec 21 10:26:47 hephaestus kernel: [346923.523742] cdc_ncm 3-4:2.0: setting rx_max = 16384
Dec 21 10:26:47 hephaestus kernel: [346923.523836] cdc_ncm 3-4:2.0: setting tx_max = 16384
Dec 21 10:26:47 hephaestus kernel: [346923.524578] cdc_ncm 3-4:2.0 eth1: register 'cdc_ncm' at usb-0000:00:14.0-4, CDC NCM, xx:xx:xx:xx:xx:xx
Dec 21 10:26:47 hephaestus systemd-udevd[325501]: Using default interface naming scheme 'v245'.
Dec 21 10:26:47 hephaestus systemd-udevd[325501]: ethtool: autonegotiation is unset or enabled, the speed and duplex are not writable.
Dec 21 10:26:47 hephaestus systemd[1]: Found device USB_10_100_1G_2.5G_LAN.
(then things start back up and the ethernet link goes live again after about 10 seconds)