Our bug report from Launchpad: Hi.
Large amount of data gets corrupted when using the TB16 ethernet port. (rsync synchronization, etc... ) Linux E7490 4.15.0-29-generic #31-Ubuntu SMP Tue Jul 17 15:39:52 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux On my Fedora is this still an issue even with announced bugfix (link copied from this discussion #78. Linux username-localdomain 4.17.9-200.fc28.x86_64 #1 SMP Mon Jul 23 21:41:29 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux It's fixed by turning the checksum offload off (tested on the Fedora . sudo ethtool --offload enp11s0u1u2 rx off https://bugs.launchpad.net/dell-sputnik/+bug/1729674 related in bugzilla: -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1729674 Title: TB16 dock ethernet corrupts data with hw checksum silently failing Status in Dell Sputnik: Triaged Status in linux package in Ubuntu: Fix Released Status in linux source package in Xenial: Fix Released Status in linux source package in Artful: Fix Released Status in linux source package in Bionic: Fix Released Status in linux package in Fedora: Confirmed Bug description: 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 and 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 To manage notifications about this bug go to: https://bugs.launchpad.net/dell-sputnik/+bug/1729674/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
