Fedora
linux package

  1. Bug #1729674
  2. Comment #0

Comment 0 for bug 1729674

Revision history for this message
Dave Chiluk (chiluk) wrote : TB16 dock ethernet is broken by default

It looks like TCP rx and tx checksum offloading is broken on the TB16 dock's ethernet adapter. For example downloading a large file such as the Ubuntu ISO, and then running an md5sum on it yields the incorrect md5sum. This is because
rx-checksumming: on
tx-checksumming: on
are both set to on by default.

Running sudo ethtool -K <TB16 eth device> tx off rx off, allows the download to complete correctly. This is very bad since this can cause very bad untrustworthy behavior.

This was conducted using an Dell Precision 5520 on Ubuntu 16.04+linux-generic-hwe-16.04-edge.

Thank you