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<1dbf956a-e981-4b2a-ab5e-ddbd5905663c@gmx.com> Date: Sun, 12 Jul 2026 13:56:57 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Content-Language: uk To: anthony.l.nguyen@intel.com, przemyslaw.kitszel@intel.com Cc: intel-wired-lan@lists.osuosl.org From: Viktor Donner Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:C2XBNPJLzGUUTqsGmBeFCW3RHGTiEUXjhk82Ro6wGMXLjfXglBE GQBkXoTaZwFR4uqXn8JVvN6FITw2xv10O7CiMM8SQI5Bken8F+VfQZkaWpVoYKCC5/lXQZD a0VKVZ5Y2YE0ygTWE3HiVmjfmrrKdPrv+N9uAZI3nsalbbwz2MU3TlyKn1rt2KFZlrS28ht rNwGDZHneboAif54Y6x6A== UI-OutboundReport: notjunk:1;M01:P0:5kuFpTWhhv8=;hKNrYKi0hU2JkYRc07MHmPqBWh9 aarK4i8+H5c12HV4WZKnEnEeti2jCONJBzuLYJnYMxlQUozZxqCdYyPuUHAKq8lH+4iN7oxxe fk9oO0VTcGZLFJ3qqkMV0EpNz+tiRtmyyA9m+NHliXi/ieCYATNs0Z+VMtk9atPZIDnhU3Ehi dXkVjp39gK2PEzCSLoSnc10pWIEBbO4zZWrqmX2aqlhpIvumCBnnF8074nLrZD6REEkQVJjIP UzQX1zhgmrLaHfLpAVErtD/Y4sF6NXjRaswELZvyx3F8zeZRAffRCMBZq3Nsf2FM2KyEhzz8U 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i=vikdon@gmx.com; bh=uOdMcUvqnDf9QymbkGi79gn/3pS0iSEbBfzDMkoE/TI=; h=X-UI-Sender-Class:Message-ID:Date:MIME-Version:To:Cc:From: Subject:Content-Type:Content-Transfer-Encoding:cc: content-transfer-encoding:content-type:date:from:message-id: mime-version:reply-to:subject:to; b=fhPqriMW7Gr2xEowG29rru+9GXF+YdHMiYVoewUu/wyYYVpo6HfP3HhBqTGlpy8O PlvZ+8793SqvG9TxUj+ZUGnLv0lMepJp3krY/VokcZrJSA4Jqp1R9YjYAk6yNcj3t VJgAtyzzRQnTPY0PsEArOCE7ipokQkoMjIZSlqBioqdOxbLgKwB1OK3lP9VGDemAo G5wJHN0/D7XmYd1Zxm4glLI7g4Gdbp/aAEHqTDpRSEh+w2UWDQVHqSoyRqIy9/FXM t6rzt8mDBxWTlHHr+YllhjWLNmwWE8vLvquzgcRoZWH6d4FheYw9Z4HZS2CNmkrL+ sV+k1ywzfPF7K0xIPg== X-Mailman-Original-Authentication-Results: smtp2.osuosl.org; dmarc=pass (p=quarantine dis=none) header.from=gmx.com X-Mailman-Original-Authentication-Results: smtp2.osuosl.org; dkim=pass (2048-bit key, unprotected) header.d=gmx.com header.i=vikdon@gmx.com header.a=rsa-sha256 header.s=s31663417 header.b=fhPqriMW Subject: [Intel-wired-lan] [e1000e] Intel I219-LM host becomes unreachable under VM network load when AMT SOL/IDER is active X-BeenThere: intel-wired-lan@osuosl.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-wired-lan-bounces@osuosl.org Sender: "Intel-wired-lan" 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: =C2=A0 =C2=A0 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: =C2=A0 =C2=A0 e1000e 0000:00:1f.6 (uninitialized): Reset blocked by ME =C2=A0 =C2=A0 e1000e 0000:00:1f.6: PHY reset is blocked due to SOL/IDER s= ession. 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 =C2=A0 =C2=A0from a TX/RX hang? 3. Are there recommended driver parameters or mitigations other than =C2=A0 =C2=A0disabling 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 vikdon@gmx.com