** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Cosmic)
Importance: Undecided
Assignee: Kai-Heng Feng (kaihengfeng)
Status: Confirmed
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https://bugs.launchpad.net/bugs/1785780
Title:
TB 16 issue on Dell Lattitude 7490 with large amount of data
Status in Dell Sputnik:
New
Status in linux package in Ubuntu:
Confirmed
Status in linux source package in Bionic:
New
Status in linux source package in Cosmic:
Confirmed
Bug description:
===SRU Justification===
[Impact]
Packets are silently corrupted on Dell TB16's ethernet.
[Fix]
Disable RX aggregation on new Dell TB16 dock.
[Test]
User confirms the patch fixes the issue.
[Regression Potential]
Low. The workaround already works, we just add a new USB serial to let
new TB16 dock also uses this workaround.
===Original Bug Report===
Hi.
Large amount of data gets corrupted when using the TB16 ethernet port.
(rsync synchronization, etc... )
We can confirm this issue on this kernel. Creating new issue as stated
in this bug (#1729674)
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:
---
ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ubuntu 1955 F.... pulseaudio
CasperVersion: 1.394
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 18.04
LiveMediaBuild: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
MachineType: Dell Inc. Latitude 7490
Package: linux (not installed)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=C.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz
file=/cdrom/preseed/username.seed boot=casper quiet splash ---
ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18
RelatedPackageVersions:
linux-restricted-modules-4.15.0-29-generic N/A
linux-backports-modules-4.15.0-29-generic N/A
linux-firmware 1.173.1
Tags: bionic
Uname: Linux 4.15.0-29-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 06/07/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.4.1
dmi.board.name: 0KP0FT
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.4.1:bd06/07/2018:svnDellInc.:pnLatitude7490:pvr:rvnDellInc.:rn0KP0FT:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: Latitude
dmi.product.name: Latitude 7490
dmi.sys.vendor: Dell Inc.
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