2025-09-29 21:43:00
Running Proxmox on an older Optiplex 7020 Micro, my networking is limited to the onboard e1000 Intel Ethernet card. So far it's treated me well, except ...
Except for those situations where I'm synchronizing tens of gigabytes with Syncthing, that's running on an Ubuntu VM in Proxmox. :)
e1000e 0000:00:1f.6 enp0s31f6: Detected Hardware Unit Hang
Is what the e1000 kernel module starts throwing at me, upon which point all network connectivity fully dies until I reboot.
It seems this has been going on at least since 2019 and it's a known issue with the older e1000 hardware, working with modern-day throughput. Here's a more recent thread on Reddit.
Supposedly a work-around for the issue lies in disabling certain on-card functionality, forcing it back to the CPU. Let's see if my connection remains stable now.
kilala.nl tags: sysadmin,
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