[BUG] igc: ASPM causes I226-V NIC to drop after idle

[BUG] igc: ASPM causes I226-V NIC to drop after idle

[Preindl]

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Hello,

I am seeing an issue with the Intel I226-V Ethernet controller on an ASUS ProArt X870E motherboard. When PCIe Active State Power Management (ASPM) is enabled, the NIC becomes unavailable after a period of inactivity. Disabling ASPM avoids the problem.

This looks like a hardware/firmware issue, but since it is easily reproducible (there are several forum discussions), it may warrant a kernel quirk in the igc driver to disable ASPM for this firmware (or device?).

---

Hardware:
- Motherboard: ASUS ProArt X870E
- NIC: Intel I226-V [8086:125c] (rev 06)
- Subsystem: [1043:8867]
- Firmware version (from ethtool -i): 2023:889d

Software:
- OS: Debian GNU/Linux 13 (trixie)
- Kernel: Linux 6.12.41+deb13-amd64
- Driver: igc

---

Steps to reproduce (logs attached)
1. Boot system with default PCIe ASPM enabled.
2. Leave the box/NIC idle for some time.
3. NIC disappears (reappears after reboot)

Workaround:
- Booting with pcie_aspm=off (or disabling ASPM in BIOS) keeps the NIC stable.

Expected:
- NIC should remain functional with ASPM enabled.

Actual:
- NIC crashes at/after idle when ASPM is enabled.

---

Please let me know if additional information or testing would help.

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sudo journalctl -b -1 -k | grep -Ei 'igc|enp10s0|link'
Journal file /var/log/journal/ea15fc8a9f7d41a0bca0c807e5375d41/system@000638e1f6f0bd4e-bfb763307fd9927e.journal~ is truncated, ignoring file.
Aug 25 16:15:00 titanium kernel: NET: Registered PF_NETLINK/PF_ROUTE protocol family
Aug 25 16:15:00 titanium kernel: audit: initializing netlink subsys (disabled)
Aug 25 16:15:00 titanium kernel: pci 0000:0b:00.0: 15.752 Gb/s available PCIe bandwidth, limited by 8.0 GT/s PCIe x2 link at 0000:07:06.0 (capable of 31.506 Gb/s with 16.0 GT/s PCIe x2 link)
Aug 25 16:15:00 titanium kernel: ACPI: PCI: Interrupt link LNKA configured for IRQ 0
Aug 25 16:15:00 titanium kernel: ACPI: PCI: Interrupt link LNKB configured for IRQ 0
Aug 25 16:15:00 titanium kernel: ACPI: PCI: Interrupt link LNKC configured for IRQ 0
Aug 25 16:15:00 titanium kernel: ACPI: PCI: Interrupt link LNKD configured for IRQ 0
Aug 25 16:15:00 titanium kernel: ACPI: PCI: Interrupt link LNKE configured for IRQ 0
Aug 25 16:15:00 titanium kernel: ACPI: PCI: Interrupt link LNKF configured for IRQ 0
Aug 25 16:15:00 titanium kernel: ACPI: PCI: Interrupt link LNKG configured for IRQ 0
Aug 25 16:15:00 titanium kernel: ACPI: PCI: Interrupt link LNKH configured for IRQ 0
Aug 25 16:15:00 titanium kernel: igc 0000:0a:00.0: PCIe PTM not supported by PCIe bus/controller
Aug 25 16:15:00 titanium kernel: igc 0000:0a:00.0 (unnamed net_device) (uninitialized): PHC added
Aug 25 16:15:00 titanium kernel: igc 0000:0a:00.0: 4.000 Gb/s available PCIe bandwidth (5.0 GT/s PCIe x1 link)
Aug 25 16:15:00 titanium kernel: igc 0000:0a:00.0 eth0: MAC: bc:fc:e7:e7:70:7f
Aug 25 16:15:00 titanium kernel: igc 0000:0a:00.0 enp10s0: renamed from eth0
Aug 25 16:15:00 titanium kernel: ata7: SATA link down (SStatus 0 SControl 300)
Aug 25 16:15:00 titanium kernel: ata1: SATA link down (SStatus 0 SControl 300)
Aug 25 16:15:00 titanium kernel: ata2: SATA link down (SStatus 0 SControl 300)
Aug 25 16:15:00 titanium kernel: ata3: SATA link down (SStatus 0 SControl 300)
Aug 25 16:15:00 titanium kernel: ata4: SATA link down (SStatus 0 SControl 300)
Aug 25 16:15:00 titanium kernel: ata8: SATA link down (SStatus 0 SControl 300)
Aug 25 16:15:00 titanium kernel: ata9: SATA link down (SStatus 0 SControl 300)
Aug 25 16:15:00 titanium kernel: ata10: SATA link down (SStatus 0 SControl 300)
Aug 25 16:15:06 titanium kernel: igc 0000:0a:00.0 enp10s0: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
Aug 25 16:15:09 titanium kernel: atlantic 0000:0b:00.0 enp11s0: atlantic: link change old 0 new 10000
Aug 28 10:04:12 titanium kernel: igc 0000:0a:00.0 enp10s0: PCIe link lost, device now detached
Aug 28 10:04:12 titanium kernel: igc: Failed to read reg 0xc030!
Aug 28 10:04:12 titanium kernel: WARNING: CPU: 3 PID: 82577 at drivers/net/ethernet/intel/igc/igc_main.c:6843 igc_rd32+0x88/0xa0 [igc]
Aug 28 10:04:12 titanium kernel: Modules linked in: uinput joydev sd_mod hid_logitech_hidpp uhid snd_seq_dummy snd_hrtimer snd_seq snd_seq_device rfcomm cmac algif_hash algif_skcipher af_alg qrtr bnep binfmt_misc nls_ascii nls_cp437 xxhash_generic vfat fat intel_rapl_msr amd_atl intel_rapl_common amd64_edac edac_mce_amd kvm_amd kvm snd_hda_codec_realtek snd_hda_codec_generic irqbypass snd_hda_scodec_component snd_hda_codec_hdmi crct10dif_pclmul snd_hda_intel ghash_clmulni_intel snd_intel_dspcfg sha512_ssse3 btusb snd_intel_sdw_acpi sha256_ssse3 btrtl snd_hda_codec eeepc_wmi sha1_ssse3 btintel snd_hda_core asus_wmi aesni_intel btbcm snd_hwdep sparse_keymap gf128mul btmtk snd_pcm platform_profile crypto_simd bluetooth snd_timer battery cryptd snd msr spd5118 wmi_bmof rapl rfkill pcspkr k10temp soundcore ccp parport_pc evdev ppdev lp parport efi_pstore configfs nfnetlink zram lz4hc_compress lz4_compress efivarfs ip_tables x_tables autofs4 btrfs blake2b_generic xor raid6_pq libcrc32c crc32c_generic amdgpu amdxcp drm_exec gpu_sched drm_buddy
Aug 28 10:04:12 titanium kernel:  i2c_algo_bit drm_suballoc_helper hid_generic drm_display_helper usbhid cec hid rc_core drm_ttm_helper ahci ttm ucsi_acpi libahci sp5100_tco xhci_pci typec_ucsi drm_kms_helper libata watchdog nvme xhci_hcd typec crc32_pclmul drm i2c_piix4 atlantic scsi_mod nvme_core video usbcore roles gpio_amdpt crc32c_intel thunderbolt i2c_smbus crc16 igc macsec scsi_common nvme_auth wmi usb_common gpio_generic button
Aug 28 10:04:12 titanium kernel: Workqueue: events igc_watchdog_task [igc]
Aug 28 10:04:12 titanium kernel: RIP: 0010:igc_rd32+0x88/0xa0 [igc]
Aug 28 10:04:12 titanium kernel:  igc_update_stats+0x8a/0x6d0 [igc]
Aug 28 10:04:12 titanium kernel:  igc_watchdog_task+0xa0/0x2e0 [igc]

Re: [BUG] igc: ASPM causes I226-V NIC to drop after idle

[Preindl]

Hello,
I'd like to add the following information/correction.

The issue can be traced to the following error that appears typically after a period of inactivity
igc: Failed to read reg 0xc030!


The kernel parameter pcie_aspm=off does not solve the issue.
I am now testing the parameters pcie_port_pm=off and pcie_aspm.policy=performance that mitigates the above error for some users.

This issue seems to be more common with Asus motherboards and may be reproducible with Intel I225-V NICs, see also
https://bbs.archlinux.org/viewtopic.php?id=288371https://forum.proxmox.com/threads/network-card-drop-igc-0000-09-00-0-eno1-pcie-link-lost.121295/
https://www.reddit.com/r/buildapc/comments/xypn1m/network_card_intel_ethernet_controller_i225v_igc/
On Monday, September 1st, 2025 at 4:45 PM, Preindl <preindl@protonmail.com> wrote:


> Hello,
> 
> I am seeing an issue with the Intel I226-V Ethernet controller on an ASUS ProArt X870E motherboard. When PCIe Active State Power Management (ASPM) is enabled, the NIC becomes unavailable after a period of inactivity. Disabling ASPM avoids the problem.
> 
> This looks like a hardware/firmware issue, but since it is easily reproducible (there are several forum discussions), it may warrant a kernel quirk in the igc driver to disable ASPM for this firmware (or device?).
> 
> ---
> 
> Hardware:
> - Motherboard: ASUS ProArt X870E
> - NIC: Intel I226-V [8086:125c] (rev 06)
> - Subsystem: [1043:8867]
> - Firmware version (from ethtool -i): 2023:889d
> 
> Software:
> - OS: Debian GNU/Linux 13 (trixie)
> - Kernel: Linux 6.12.41+deb13-amd64
> - Driver: igc
> 
> ---
> 
> Steps to reproduce (logs attached)
> 1. Boot system with default PCIe ASPM enabled.
> 2. Leave the box/NIC idle for some time.
> 3. NIC disappears (reappears after reboot)
> 
> Workaround:
> - Booting with pcie_aspm=off (or disabling ASPM in BIOS) keeps the NIC stable.
> 
> Expected:
> - NIC should remain functional with ASPM enabled.
> 
> Actual:
> - NIC crashes at/after idle when ASPM is enabled.
> 
> ---
> 
> Please let me know if additional information or testing would help.

Re: [Intel-wired-lan] [BUG] igc: ASPM causes I226-V NIC to drop after idle

[Lifshits, Vitaly]

On 9/5/2025 1:03 AM, Preindl wrote:
> Hello,
> 
> I'd like to add the following information/correction.
> 
> The issue can be traced to the following error that appears typically 
> after a period of inactivity
> igc: Failed to read reg 0xc030!
> 
> The kernel parameter pcie_aspm=off does not solve the issue.
> I am testing now the parameters pcie_port_pm=off and 
> pcie_aspm.policy=performance that are often reported to mitigate the 
> above error.
> 
> This issue seems to be more common with Asus motherboards and may be 
> reproducible with Intel I225-V NICs, see also
> https://bbs.archlinux.org/viewtopic.php?id=288371 <https:// 
> bbs.archlinux.org/viewtopic.php?id=288371>
> https://forum.proxmox.com/threads/network-card-drop-igc-0000-09-00-0- 
> eno1-pcie-link-lost.121295/ <https://forum.proxmox.com/threads/network- 
> card-drop-igc-0000-09-00-0-eno1-pcie-link-lost.121295/>
> https://www.reddit.com/r/buildapc/comments/xypn1m/ 
> network_card_intel_ethernet_controller_i225v_igc/ <https:// 
> www.reddit.com/r/buildapc/comments/xypn1m/ 
> network_card_intel_ethernet_controller_i225v_igc/>
> 
> 
> 
> On Monday, September 1st, 2025 at 4:45 PM, Preindl 
> <preindl@protonmail.com> wrote:
>> Hello,
>>
>> I am seeing an issue with the Intel I226-V Ethernet controller on an 
>> ASUS ProArt X870E motherboard. When PCIe Active State Power Management 
>> (ASPM) is enabled, the NIC becomes unavailable after a period of 
>> inactivity. Disabling ASPM avoids the problem.
>>
>> This looks like a hardware/firmware issue, but since it is easily 
>> reproducible (there are several forum discussions), it may warrant a 
>> kernel quirk in the igc driver to disable ASPM for this firmware (or 
>> device?).
>>
>> ---
>>
>> Hardware:
>> - Motherboard: ASUS ProArt X870E
>> - NIC: Intel I226-V [8086:125c] (rev 06)
>> - Subsystem: [1043:8867]
>> - Firmware version (from ethtool -i): 2023:889d
>>
>> Software:
>> - OS: Debian GNU/Linux 13 (trixie)
>> - Kernel: Linux 6.12.41+deb13-amd64
>> - Driver: igc
>>
>> ---
>>
>> Steps to reproduce (logs attached)
>> 1. Boot system with default PCIe ASPM enabled.
>> 2. Leave the box/NIC idle for some time.
>> 3. NIC disappears (reappears after reboot)
>>
>> Workaround:
>> - Booting with pcie_aspm=off (or disabling ASPM in BIOS) keeps the NIC 
>> stable.
>>
>> Expected:
>> - NIC should remain functional with ASPM enabled.
>>
>> Actual:
>> - NIC crashes at/after idle when ASPM is enabled.
>>
>> ---
>>
>> Please let me know if additional information or testing would help.
>>
> 

Hello,

Thank you for the detailed report and for sharing your findings.
Unfortunately, there’s not much we can do within the driver to work 
around this issue. The behavior you're observing appears to stem from an 
unexpected PCIe link state change, which the OS interprets as a surprise 
removal of the device.

Given that, I recommend reaching out to ASUS support directly, as this 
may be related to motherboard firmware or hardware compatibility.