i'm testing with settings ethtool -K eno1 gso off gro off tso off rx off
tx off
Few days ago my provider replaced all hardware, and attach network to another
switch port.
Also network cable is replaced
Cannot test kernel at this moment. System is already live.
Maybe Shivaram Lingamneni can run
Today two times cost carrier. Seems that Shivaram Lingamneni is right.
With the changed settings there are still lost carriers, but not that often.
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I also installed networkd-dispatcher and added in the directory
routable.d a file with
#!/bin/sh
ethtool -K eno1 gso off gro off tso off rx off tx off
so i don't have to manual change the settings when rebooting.
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Can you check the nic settings and see if hidma is fixed or not?
(ethtool -k )
If it is not fixed, then try disable it ethtool -K highdma off
https://lauri.xn--vsandi-pxa.com/2016/02/fixing-broadcom-bcm5762-on-
ubuntu.html
Another option is to disable netplan and switch to networkd-systemd so
yes and no.
I did disabled tso, but still had some problems, after that i enabled tso and
disabled rx/tx checksum
That also did not resolve the issue, so as last resort i disabled
GSO,GRO,TSO offload and ,RX,TX checksum check
ethtool -K gso off gro off tso off rx off tx off
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issue only occurs when there is a high netwerk load.
Only disableling rx tx checksum check did not resolve the issue.
There is also a older bug for the e1000 with almost the same issue.
So seems that this issue is a long and known issue in earlier versions.
Also there is a simulair bug
apport information
** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/1832101/+attachment/5269981/+files/ProcModules.txt
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apport information
** Attachment added: "ProcEnviron.txt"
https://bugs.launchpad.net/bugs/1832101/+attachment/5269979/+files/ProcEnviron.txt
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apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1832101/+attachment/5269983/+files/WifiSyslog.txt
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apport information
** Attachment added: "UdevDb.txt"
https://bugs.launchpad.net/bugs/1832101/+attachment/5269982/+files/UdevDb.txt
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apport information
** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/1832101/+attachment/5269980/+files/ProcInterrupts.txt
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apport information
** Attachment added: "ProcCpuinfoMinimal.txt"
https://bugs.launchpad.net/bugs/1832101/+attachment/5269978/+files/ProcCpuinfoMinimal.txt
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apport information
** Attachment added: "ProcCpuinfo.txt"
https://bugs.launchpad.net/bugs/1832101/+attachment/5269977/+files/ProcCpuinfo.txt
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apport information
** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1832101/+attachment/5269976/+files/Lspci.txt
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https://bugs.launchpad.net/bugs/1832101
apport information
** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1832101/+attachment/5269975/+files/CurrentDmesg.txt
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apport information
** Tags added: apport-collected
** Description changed:
Just installed a fresh installation of ubuntu 19 on our server and we're
having a lot of carrier-lost erros.
There is no really good indicaton why this is hapening.
Tried the following : disabled ipv6 (just
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