LAN disconnects after heavy network traffic

I've upgraded my system on Tuesday from 6.8.12-10-pve to 6.8.12-11-pve and it is still online, so yesterday I updated another system, which is technically identical. That one froze just few hours after the upgrade. The main difference is that the second one is also running PBS in a PVE VM.
 
SelfMan said:
Hi, sorry for resurrecting this old thread, I just would like to know if you've managed to find a solution for this problem.
My device was running fine for couple months but now after a few last updates started to exhibit the "drop of the network" behavior.
None of the 4 VMs do respond. Proxmox admin UI is inaccessible and there re no responses from ping.
This always happen after the backup starts.
The computer has the ASRock Z790M-ITX WIFI board with 2 Intel NICs. 2.5Gb and 1Gb. Only the 1Gb is used.
I've also build another almost identical system (98%), and that one is running fine except it does not have any of the recent 3 updates.

When I pull the network cable and put it back, the whole network thing resets and everything starts to communicate. There were no other actions taken trying that. The only issue is when the backup, followed by PBS, starts the system stops to respond. (SSH does not work either)

I am running Proxmox 8.3.5
Click to expand...
Facing exactly same issue. Device is Lenovo m90q gen 5. Syslog shows
pve2 kernel: e1000e 0000:00:1f.6 eno2: Detected Hardware Unit Hang

Edit:
Code: 
ethtool -K eth0 gso off gro off tso off tx off rx off rxvlan off txvlan off
seems to fix this issue. Reference : https://forum.proxmox.com/threads/intel-nic-e1000e-hardware-unit-hang.106001/
 
Last edited:
lifemoments said:
Facing exactly same issue. Device is Lenovo m90q gen 5. Syslog shows
pve2 kernel: e1000e 0000:00:1f.6 eno2: Detected Hardware Unit Hang

Edit:
Code: 
ethtool -K eth0 gso off gro off tso off tx off rx off rxvlan off txvlan off
seems to fix this issue. Reference : https://forum.proxmox.com/threads/intel-nic-e1000e-hardware-unit-hang.106001/
Click to expand...
Yeah, there are several threads about the same issue
M

[SOLVED] Thread 'Intel NIC e1000e hardware unit hang'

This has been discussed many times, is there a solution/workaround yet, as the specified steps are not working for me?
I've the following in /etc/network/interfaces

Code: 
auto lo
iface lo inet loopback

iface eno1 inet manual
        offload-gso off
        offload-gro off
        offload-tso off
        offload-rx off
        offload-tx off
        offload-rxvlan off
        offload-txvlan off
        offload-sg off
        offload-ufo off
        offload-lro off
auto vmbr0
iface vmbr0 inet static
        address xxx
        gateway xxx
        bridge-ports eno1
        bridge-stp off...
L

Thread 'Proxmox 6.8.12-9-pve kernel has introduced a problem with e1000e Driver and network connection lost after some hours'

Hello All,

Has anybody experienced problems with the enp0s31f6 Intel network card with the new Proxmox VE 6.8.12-9 Kernel?
With this new kernel, the network suddenly stops after some hours. I don't seem to see any relevant information that I can explore.
I don't have the same behavior using the pinned 6.8.12-8-pve Kernel.

Thank you!
A

Thread 'e1000 driver hang'

In the past week we are seeing random e1000e 0000:00:1f.6 eno1: Detected Hardware Unit Hang failuresacross all our nodes, even different hardware hosts. Must do a reset of the host.

There are lots of references to this issue going back 5+ years. Was there a driver change with the latest updates? We've run years with this hardware without issue. Now just this week its popping up all over.

Kernel Version Linux 5.0.21-2-pve #1 SMP PVE 5.0.21-3 (Thu, 05 Sep 2019 13:56:01 +0200)
PVE Manager Version pve-manager/6.0-7/2898402

Sep 22 20:03:08 vmhost03 kernel: [154458.471981] e1000e...
  • Like
including this one and yes, the simplest thing is apply this fix:

https://community-scripts.github.io/ProxmoxVED/scripts?id=nic-offloading-fix
 
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