In a machine here it happens in a Gigabit Ethernet controller:
[81788.983716] TCP: enp4s0: Driver has suspect GRO implementation, TCP
performance may be compromised.
uname -a
Linux omitted 5.3.0-45-generic #37~18.04.1-Ubuntu SMP Fri Mar 27 15:58:10
UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
This enp4s0 is:
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:04:00.0
logical name: enp4s0
version: 10
serial: <omitted>
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical tp 10bt 10bt-fd
100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8168
driverversion=8.048.00-NAPI duplex=full ip=<omitted> latency=0 link=yes
multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:126 ioport:d000(size=256) memory:df104000-df104fff
memory:df100000-df103fff
modinfo r8168
filename:
/lib/modules/5.3.0-45-generic/kernel/drivers/net/ethernet/realtek/r8168.ko
version: 8.048.00-NAPI
license: GPL
description: RealTek RTL-8168 Gigabit Ethernet driver
srcversion: 88B6F0A5DB60825A3057505
ethtool -i enp4s0
driver: r8168
version: 8.048.00-NAPI
firmware-version:
expansion-rom-version:
bus-info: 0000:04:00.0
supports-statistics: yes
supports-test: no
supports-eeprom-access: no
supports-register-dump: yes
supports-priv-flags: no
( The directory /lib/firmware/rtl_nic/ has the firmware files:
rtl8168d-1.fw rtl8168d-2.fw rtl8168e-1.fw rtl8168e-2.fw rtl8168e-3.fw
rtl8168f-1.fw rtl8168f-2.fw rtl8168g-1.fw rtl8168g-2.fw rtl8168g-3.fw
rtl8168h-1.fw rtl8168h-2.fw )
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1664072
Title:
TCP: wlp1s0: Driver has suspect GRO implementation, TCP performance
may be compromised.
Status in Linux:
Confirmed
Status in linux package in Ubuntu:
Fix Released
Status in linux package in Debian:
Confirmed
Bug description:
dmesg:
[ 7578.057461] TCP: wlp1s0: Driver has suspect GRO implementation, TCP
performance may be compromised.
ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: linux-image-4.9.0-15-generic 4.9.0-15.16
ProcVersionSignature: Ubuntu 4.9.0-15.16-generic 4.9.5
Uname: Linux 4.9.0-15-generic x86_64
ApportVersion: 2.20.4-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/pcmC0D0p: caravena 2378 F...m pulseaudio
/dev/snd/controlC0: caravena 2378 F.... pulseaudio
CurrentDesktop: GNOME
Date: Sun Feb 12 19:34:40 2017
HibernationDevice: RESUME=UUID=360bd2d2-4f44-4311-86d6-4781ac81ee87
InstallationDate: Installed on 2015-07-26 (567 days ago)
InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Alpha amd64 (20150723)
MachineType: SAMSUNG ELECTRONICS CO., LTD. 530U3C/530U4C
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.9.0-15-generic
root=UUID=4f4435ca-b877-47a5-9065-3dd624c0514e ro rootflags=subvol=@ quiet
splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.9.0-15-generic N/A
linux-backports-modules-4.9.0-15-generic N/A
linux-firmware 1.162
SourcePackage: linux
UpgradeStatus: Upgraded to zesty on 2016-10-29 (106 days ago)
dmi.bios.date: 04/15/2013
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: P14AAJ
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: SAMSUNG_NP1234567890
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias:
dmi:bvnPhoenixTechnologiesLtd.:bvrP14AAJ:bd04/15/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn530U3C/530U4C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.name: 530U3C/530U4C
dmi.product.version: 0.1
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
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