** Changed in: linux (Debian)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1664072
Title:
TCP: wlp1s0: Driver has suspect GRO implementation,
** Bug watch added: Linux Kernel Bug Tracker #208001
https://bugzilla.kernel.org/show_bug.cgi?id=208001
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https://bugs.launchpad.net/bugs/1664072
Title:
TCP: wlp1s0:
In a machine here it happens in a RTL8188CE 802.11b/g/n WiFi Adapter
(rev 01):
[20965.687617] wlp1s0: associated
[20965.695282] IPv6: ADDRCONF(NETDEV_CHANGE): wlp1s0: link becomes ready
[33544.393882] TCP: wlp1s0: Driver has suspect GRO implementation, TCP
performance may be compromised.
$
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
I see it
TCP: wlan0: Driver has suspect GRO implementation, TCP performance may
be compromised.
[4.287544] iwlwifi :01:00.0: firmware: direct-loading firmware
iwlwifi-8000C-36.ucode
[4.289638] iwlwifi :01:00.0: loaded firmware version 36.8fd77bb3.0
op_mode iwlmvm
[
I see it Linux 5.5.4 with a OpenVPN(UDP)/tun/VPN tunnel.
TCP: tun0: Driver has suspect GRO implementation, TCP performance may be
compromised.
Is this the same bug? Something different?
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** Changed in: linux (Debian)
Status: Unknown => Confirmed
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Title:
TCP: wlp1s0: Driver has suspect GRO implementation, TCP
I added the following description on the Debian bug.
I close the Ubuntu bug, since you got it on a 4.9 kernel, and no still
supported Ubuntu version has such kernel.
===
It looks like the warning appeared with this first commit:
** Bug watch added: Debian Bug tracker #864642
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=864642
** Also affects: linux (Debian) via
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=864642
Importance: Unknown
Status: Unknown
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I have also came across this error while combing through the logs trying
to figure out another issue.
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Title:
TCP: wlp1s0: Driver
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu)
Status: New => Triaged
** Tags added: kernel-da-key
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Public bug reported:
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
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