vmxnet3 LRO IPv6 performance issues (stalling TCP)
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Trusty |
Fix Released
|
Undecided
|
Tim Gardner | ||
Xenial |
Fix Released
|
Undecided
|
Tim Gardner | ||
Yakkety |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
We have performance problems with TCP over IPv6 with SSH/SCP and HTTP traffic on Linux guest virtual machines running on VMware ESXi (6.0u2). We are running Ubuntu 12.04.5 LTS, 14.04.3 LTS and soon 16.04.1 LTS.
If we upload (large) files with these protocols the performance go's down to 200kb/s.
With IPv4, we have a much higher performance.
This is a known issue in the vmxnet3 driver that is fixed upstream on the 21th of April:
"This is due to check sum handling issue in the vmxnet3 driver. Fix is on
the kernel tree." http://
Kernel Patch: https:/
Another example of someone who has this problem:
https:/
https:/
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-
ProcVersionSign
Uname: Linux 3.13.0-61-generic x86_64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Jul 12 14:04 seq
crw-rw---- 1 root audio 116, 33 Jul 12 14:04 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.14.1-0ubuntu3.21
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory: 'iw'
Date: Fri Jul 22 08:05:09 2016
HibernationDevice: RESUME=
InstallationDate: Installed on 2014-05-08 (805 days ago)
InstallationMedia: Ubuntu-Server 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
IwConfig:
eth0 no wireless extensions.
lo no wireless extensions.
Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
MachineType: VMware, Inc. VMware Virtual Platform
PciMultimedia:
ProcFB: 0 svgadrmfb
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.127.22
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:
dmi.bios.date: 09/21/2015
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: 6.00
dmi.board.name: 440BX Desktop Reference Platform
dmi.board.vendor: Intel Corporation
dmi.board.version: None
dmi.chassis.
dmi.chassis.type: 1
dmi.chassis.vendor: No Enclosure
dmi.chassis.
dmi.modalias: dmi:bvnPhoenixT
dmi.product.name: VMware Virtual Platform
dmi.product.
dmi.sys.vendor: VMware, Inc.
Changed in linux (Ubuntu Xenial): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Trusty): | |
status: | In Progress → Fix Committed |
This change was made by a bot.