Hello, I am reporting an issue involving the e1000e driver, Intel I219-LM, network offload, and Intel AMT/ME remote-management state.
Environment: - Host: Proxmox VE 9.2.4 - Kernel: 7.0.14-4-pve - NIC: Intel I219-LM - Driver: e1000e - Driver version: 7.0.14-4-pve - Firmware version: 0.4-4 - PCI address: 0000:00:1f.6 - Link: 1000 Mb/s, full duplex - Host bridge: Linux bridge vmbr0 - Guest traffic: VirtIO VM network interface Observed behavior: When running a speed test inside a VM, at approximately 600+ Mbit/s download traffic, the Proxmox host becomes completely unreachable over the network: - no ICMP response - no SSH access - no Proxmox web interface - the physical/vPro console initially remains available - a normal reboot may hang, requiring an AMT hardware reset/power cycle The NIC still appears administratively UP and LOWER_UP, and the bridge configuration and IP address remain present. With TSO/GSO/GRO disabled using: ethtool -K eno1 tso off gso off gro off the problem does not occur, but network performance decreases to approximately 440/239 Mbit/s. Relevant boot messages while MeshCommander / AMT remote management was active: e1000e 0000:00:1f.6 (uninitialized): Reset blocked by ME e1000e 0000:00:1f.6: PHY reset is blocked due to SOL/IDER session. After completely closing MeshCommander and rebooting, these messages disappeared. TSO/GSO/GRO were enabled again, and repeated speed tests did not reproduce the host lockup. Current clean boot state: - TSO: on - GSO: on - GRO: on - tx_timeout_count: 0 - rx_errors: 0 - tx_errors: 0 - CRC errors: 0 - no failed systemd units This suggests a possible interaction between e1000e recovery/reset, Intel ME ownership of the I219-LM PHY, active AMT SOL/IDER sessions, and high network load/offload processing. Please advise: 1. Is this a known e1000e/I219-LM issue? 2. Is blocking PHY reset during SOL/IDER expected to prevent recovery from a TX/RX hang? 3. Are there recommended driver parameters or mitigations other than disabling TSO/GSO/GRO? 4. What additional traces or register dumps would be useful? Hardware: - Motherboard: Gigabyte Q370M D3H GSM PLUS rev. 1.0 - Primary NIC: Intel I219-LM - Secondary NIC: Intel I211 using the igb driver, currently not cabled Regards, Viktor D [email protected]
