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 )
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1664072
Title:
TCP: wlp1s0: Driver has suspect GRO implementation, TCP performance
may be compromised.
To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1664072/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
