You will want to contact Dell support on that one as it appears you are running a non- Ubuntu kernel version (it's probably Dell provided). You might simply need to upgrade.
On Thu, Mar 28, 2019, 3:40 PM Maxwell Ballenger <[email protected]> wrote: > Thanks for the work you all have done tracking this down. I am > experiencing an issue with identical symptoms. I understand the problem > should be fixed with 4.15+, so I may be experiencing a different bug. If > anyone could help me determine that conclusively or point me in a > direction that might help me fix this one, I'd really appreciate it! > > Below I have reproduced the issue in the same way as above, with the > same workaround. > > Dell Precision 5530 > TB16 Dock > Ubuntu 18.04 > Kernel: 4.15.0-1034-oem > > $ sudo ethtool --offload enx3c2c30b2d39a rx on > $ for i in 1 2 3 4 5 6 7 8 9; do curl -s > http://old-releases.ubuntu.com/releases/17.04/ubuntu-17.04-server-amd64.img > -o $i.iso; md5sum $i.iso; done > 4672ce371fb3c1170a9e71bc4b2810b9 1.iso > 5cfcb270becce9962c0dc305dac943b9 2.iso > 4672ce371fb3c1170a9e71bc4b2810b9 3.iso > ba8ec5ef56501dbab731dcd0e627a334 4.iso > 7d5d892efa5899a99129d90167508434 5.iso > c0402e3a6a1179d77c3132e15af2b81f 6.iso > 4672ce371fb3c1170a9e71bc4b2810b9 7.iso > 4672ce371fb3c1170a9e71bc4b2810b9 8.iso > 4672ce371fb3c1170a9e71bc4b2810b9 9.iso > $ sudo ethtool --offload enx3c2c30b2d39a rx off > $ for i in 1 2 3 4 5 6 7 8 9; do curl -s > http://old-releases.ubuntu.com/releases/17.04/ubuntu-17.04-server-amd64.img > -o $i.iso; md5sum $i.iso; done > 4672ce371fb3c1170a9e71bc4b2810b9 1.iso > 4672ce371fb3c1170a9e71bc4b2810b9 2.iso > 4672ce371fb3c1170a9e71bc4b2810b9 3.iso > 4672ce371fb3c1170a9e71bc4b2810b9 4.iso > 4672ce371fb3c1170a9e71bc4b2810b9 5.iso > 4672ce371fb3c1170a9e71bc4b2810b9 6.iso > 4672ce371fb3c1170a9e71bc4b2810b9 7.iso > 4672ce371fb3c1170a9e71bc4b2810b9 8.iso > 4672ce371fb3c1170a9e71bc4b2810b9 9.iso > $ uname -r > 4.15.0-1034-oem > $ > > -- > You received this bug notification because you are subscribed to the bug > report. > 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 > > Launchpad-Notification-Type: bug > Launchpad-Bug: product=dell-sputnik; status=Triaged; importance=High; > assignee=None; > Launchpad-Bug: distribution=ubuntu; sourcepackage=linux; component=main; > milestone=ubuntu-18.04; status=Fix Released; importance=High; assignee= > [email protected]; > Launchpad-Bug: distribution=ubuntu; distroseries=xenial; > sourcepackage=linux; component=main; status=Fix Released; > importance=Undecided; assignee=None; > Launchpad-Bug: distribution=ubuntu; distroseries=artful; > sourcepackage=linux; component=main; status=Fix Released; importance=High; > assignee=None; > Launchpad-Bug: distribution=ubuntu; distroseries=bionic; > sourcepackage=linux; component=main; milestone=ubuntu-18.04; status=Fix > Released; importance=High; [email protected]; > Launchpad-Bug: distribution=fedora; sourcepackage=linux; component=None; > status=Confirmed; importance=Undecided; assignee=None; > Launchpad-Bug-Tags: indeed verification-done-artful > verification-done-xenial > Launchpad-Bug-Information-Type: Public > Launchpad-Bug-Private: no > Launchpad-Bug-Security-Vulnerability: no > Launchpad-Bug-Commenters: ballengerm benjamin-redhat-bugs chiluk > christian-redhat-bugs gerben-redhat-bugs janitor jarod-redhat-bugs > jeremy-redhat-bugs jiri-redhat-bugs kai-heng-redhat-bugs kaihengfeng katamo > luciano marianne-z mario-redhat-bugs martin-redhat-bugs pandasauce smb > superm1 ubuntu-kernel-bot > Launchpad-Bug-Reporter: Dave Chiluk (chiluk) > Launchpad-Bug-Modifier: Maxwell Ballenger (ballengerm) > Launchpad-Message-Rationale: Subscriber > Launchpad-Message-For: chiluk > -- 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 : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
