Comment 8 for bug 1663975

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leee (leee) wrote :

A colleague with the same laptop told me that Windows does not experience any wired dock network dropouts.

To rule out any hardware being possibly faulty - I ran continuous network file transfers on Windows 10 for 24 hours and did not see any diminished performance, let alone any outright network failure.

Installing Ubuntu 16.04.2 again (with 4.8) and testing that as well as with 4.10 makes the problem reproducible:

- xhci_hcd 0000:0e:00.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 2 comp_code 13
- xhci_hcd 0000:0e:00.0: Looking for event-dma [16-digit-integer] trb-start [16-digit-hexadecimal] trb-end [16-digit-hexadecimal] seg-start [16-digit-hexadecimal] seg-end [16-digit-hexadecimal]

This, along with other users running into the same issue, points to the issue being _clearly_ software related unless I've missed something in my diagnosis.

What other data can I provide? I wish I could be of more help, but am not competent enough to know where to even begin to write a patch.