Comment 53 for bug 1269883

Hi everyone.

Can we have updates on this topic? This is becoming quite blocking now as the vast majority of USB3 to Ethernet adapters are using the chipset ax88179_178a. We are now 2 years later now...

The problem is still present on 4.5 and even 4.6 but does not lead to kernel panics any more. We have still disconnections and the we need to unplug / replug the adapter manually in order to recover the connection. Also, when we are downloading at 1Gbps large files, it's likely the resulting file becomes corrupted at some point. I tried to transfer Linux distro isos, using FTP for maximum transfer rate, the iso were corrupted at the other end. Downgrading the connection bitrate or using SSH (ftp over ssh) sometimes helps, but this is not always the case.

[11597.425991] ax88179_178a 4-2:1.0 enp0s20u2: ax88179 - Link status is: 1
[11597.432683] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s20u2: link becomes ready
[16742.696384] usb 4-2: USB disconnect, device number 2
[16742.696488] ax88179_178a 4-2:1.0 enp0s20u2: unregister 'ax88179_178a' usb-0000:00:14.0-2, ASIX AX88179 USB 3.0 Gigabit Ethernet
[16742.696516] ax88179_178a 4-2:1.0 enp0s20u2: Failed to read reg index 0x0002: -19
[16742.696519] ax88179_178a 4-2:1.0 enp0s20u2: Failed to write reg index 0x0002: -19
[16742.713088] ax88179_178a 4-2:1.0 enp0s20u2 (unregistered): Failed to write reg index 0x0002: -19
[16742.713093] ax88179_178a 4-2:1.0 enp0s20u2 (unregistered): Failed to write reg index 0x0001: -19
[16742.713112] ax88179_178a 4-2:1.0 enp0s20u2 (unregistered): Failed to write reg index 0x0002: -19
[16744.796619] usb 4-2: new SuperSpeed USB device number 4 using xhci_hcd
[16745.144022] ax88179_178a 4-2:1.0 eth0: register 'ax88179_178a' at usb-0000:00:14.0-2, ASIX AX88179 USB 3.0 Gigabit Ethernet, 00:24:9b:07:36:81
[16745.189310] ax88179_178a 4-2:1.0 enp0s20u2: renamed from eth0
[16745.215327] IPv6: ADDRCONF(NETDEV_UP): enp0s20u2: link is not ready
[16745.536542] IPv6: ADDRCONF(NETDEV_UP): enp0s20u2: link is not ready
[16748.586260] ax88179_178a 4-2:1.0 enp0s20u2: ax88179 - Link status is: 1
[16748.591156] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s20u2: link becomes ready
[17046.546101] perf interrupt took too long (5006 > 4960), lowering kernel.perf_event_max_sample_rate to 25200