Bug#1060706: linux-image-6.1.0-17-amd64: intel i225 NIC loses PCIe link, network becomes unusable
Package: src:linux Version: 6.1.69-1 Severity: normal Tags: upstream Dear Maintainer, just having the computer run for a while, the network loses connection because the NIC detached from PCIe. I suspect this is related to power management but am not really sure. As this seemed to be a known problem, I added pcie_aspm=off to the kernel command line. The problem happens more or less randomly, the computer is usually running 24/7: # journalctl --grep 'PCIe link lost' --quiet | cat Sep 20 14:21:17 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached Okt 06 05:44:20 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached Okt 07 16:39:10 Zwerg kernel: igc :0a:00.0 (unnamed net_device) (uninitialized): PCIe link lost, device now detached Okt 23 18:31:25 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached Okt 30 11:16:06 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached Okt 31 13:50:06 Zwerg kernel: igc :0a:00.0 (unnamed net_device) (uninitialized): PCIe link lost, device now detached Nov 22 18:59:11 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached Nov 23 15:45:49 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached Dez 19 07:33:02 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached Jan 01 09:57:40 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached Jan 10 16:15:20 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached Jan 13 11:16:31 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached This is what I find in the kernel or system log: Jan 13 11:16:31 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached Jan 13 11:16:31 Zwerg kernel: [ cut here ] Jan 13 11:16:31 Zwerg kernel: igc: Failed to read reg 0xc030! Jan 13 11:16:31 Zwerg kernel: WARNING: CPU: 18 PID: 6389 at drivers/net/ethernet/intel/igc/igc_main.c:6482 igc_rd32+0x91/0xa0 [igc] Jan 13 11:16:31 Zwerg kernel: Modules linked in: rfcomm cpufreq_userspace cpufreq_powersave cpufreq_ondemand cpufreq_conservative nfsv3 nfs_acl rpcs> Jan 13 11:16:31 Zwerg kernel: configfs efivarfs ip_tables x_tables autofs4 xfs libcrc32c crc32c_generic dm_crypt dm_mod hid_generic amdgpu crc32_pc> Jan 13 11:16:31 Zwerg kernel: CPU: 18 PID: 6389 Comm: kworker/18:1 Not tainted 6.1.0-17-amd64 #1 Debian 6.1.69-1 Jan 13 11:16:31 Zwerg kernel: Hardware name: ASUS System Product Name/ROG STRIX X670E-A GAMING WIFI, BIOS 1410 04/28/2023 Jan 13 11:16:31 Zwerg kernel: Workqueue: events igc_watchdog_task [igc] Jan 13 11:16:31 Zwerg kernel: RIP: 0010:igc_rd32+0x91/0xa0 [igc] Jan 13 11:16:31 Zwerg kernel: Code: 48 c7 c6 d0 55 56 c0 e8 0b 7d 6c f8 48 8b bd 28 ff ff ff e8 31 c7 23 f8 84 c0 74 b4 89 de 48 c7 c7 f8 55 56 c0 e> Jan 13 11:16:31 Zwerg kernel: RSP: 0018:ac56d5f13df0 EFLAGS: 00010286 Jan 13 11:16:31 Zwerg kernel: RAX: RBX: c030 RCX: 0027 Jan 13 11:16:31 Zwerg kernel: RDX: a046f85a03a8 RSI: 0001 RDI: a046f85a03a0 Jan 13 11:16:31 Zwerg kernel: RBP: a03f45710c28 R08: R09: ac56d5f13c68 Jan 13 11:16:31 Zwerg kernel: R10: 0003 R11: a04717f7ffe8 R12: a03f4571 Jan 13 11:16:31 Zwerg kernel: R13: R14: a03f456efd40 R15: c030 Jan 13 11:16:31 Zwerg kernel: FS: () GS:a046f858() knlGS: Jan 13 11:16:31 Zwerg kernel: CS: 0010 DS: ES: CR0: 80050033 Jan 13 11:16:31 Zwerg kernel: CR2: 7f1fc894f000 CR3: 0008a8538000 CR4: 00750ee0 Jan 13 11:16:31 Zwerg kernel: PKRU: 5554 Jan 13 11:16:31 Zwerg kernel: Call Trace: Jan 13 11:16:31 Zwerg kernel: Obviously, the kernel parameter to disable PCIe power management was not solving this problem. The way to recover is to restart the computer. -- Package-specific info: ** Version: Linux version 6.1.0-17-amd64 (debian-ker...@lists.debian.org) (gcc-12 (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #1 SMP PREEMPT_DYNAMIC Debian 6.1.69-1 (2023-12-30) ** Command line: BOOT_IMAGE=/vmlinuz-6.1.0-17-amd64 root=/dev/mapper/Zwerg--vg-root ro pcie_aspm=off quiet ** Not tainted ** Kernel log: Unable to read kernel log; any relevant messages should be attached ** Model information sys_vendor: ASUS product_name: System Product Name product_version: System Version chassis_vendor: Default string chassis_version: Default string bios_vendor: American Megatrends Inc. bios_version: 1410 board_vendor: ASUSTeK COMPUTER INC. board_name: ROG STRIX X670E-A GAMING WIFI board_version: Rev 1.xx ** Loaded modules: rfcomm cpufreq_userspace cpufreq_powersave cpufreq_ondemand cpufreq_conservative nfsv3 nfs_acl rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache netfs qrtr overlay cmac algif_hash algif_skcipher af_alg bnep sunrpc binf
Bug#1060706: linux-image-6.1.0-17-amd64: intel i225 NIC loses PCIe link, network becomes unusable
On Saturday, 13 January 2024 11:45:29 CET Arno Lehmann wrote: > Hardware name: ASUS System Product Name/ROG STRIX X670E-A GAMING WIFI, > BIOS 1410 04/28/2023 Possibly not related, but there's BIOS 1807 available. signature.asc Description: This is a digitally signed message part.
Bug#1060706: linux-image-6.1.0-17-amd64: intel i225 NIC loses PCIe link, network becomes unusable
Control: tags -1 + moreinfo On Sat, Jan 13, 2024 at 11:45:29AM +0100, Arno Lehmann wrote: > Package: src:linux > Version: 6.1.69-1 > Severity: normal > Tags: upstream > > Dear Maintainer, > > > just having the computer run for a while, the network loses connection because > the NIC detached from PCIe. I suspect this is related to power management but > am not really sure. > > As this seemed to be a known problem, I added pcie_aspm=off to the kernel > command line. > > The problem happens more or less randomly, the computer is usually running > 24/7: > > # journalctl --grep 'PCIe link lost' --quiet | cat > Sep 20 14:21:17 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device > now detached > Okt 06 05:44:20 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device > now detached > Okt 07 16:39:10 Zwerg kernel: igc :0a:00.0 (unnamed net_device) > (uninitialized): PCIe link lost, device now detached > Okt 23 18:31:25 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device > now detached > Okt 30 11:16:06 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device > now detached > Okt 31 13:50:06 Zwerg kernel: igc :0a:00.0 (unnamed net_device) > (uninitialized): PCIe link lost, device now detached > Nov 22 18:59:11 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device > now detached > Nov 23 15:45:49 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device > now detached > Dez 19 07:33:02 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device > now detached > Jan 01 09:57:40 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device > now detached > Jan 10 16:15:20 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device > now detached > Jan 13 11:16:31 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device > now detached > > > This is what I find in the kernel or system log: > > Jan 13 11:16:31 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device > now detached > Jan 13 11:16:31 Zwerg kernel: [ cut here ] > Jan 13 11:16:31 Zwerg kernel: igc: Failed to read reg 0xc030! > Jan 13 11:16:31 Zwerg kernel: WARNING: CPU: 18 PID: 6389 at > drivers/net/ethernet/intel/igc/igc_main.c:6482 igc_rd32+0x91/0xa0 [igc] > Jan 13 11:16:31 Zwerg kernel: Modules linked in: rfcomm cpufreq_userspace > cpufreq_powersave cpufreq_ondemand cpufreq_conservative nfsv3 nfs_acl rpcs> > Jan 13 11:16:31 Zwerg kernel: configfs efivarfs ip_tables x_tables autofs4 > xfs libcrc32c crc32c_generic dm_crypt dm_mod hid_generic amdgpu crc32_pc> > Jan 13 11:16:31 Zwerg kernel: CPU: 18 PID: 6389 Comm: kworker/18:1 Not > tainted 6.1.0-17-amd64 #1 Debian 6.1.69-1 > Jan 13 11:16:31 Zwerg kernel: Hardware name: ASUS System Product Name/ROG > STRIX X670E-A GAMING WIFI, BIOS 1410 04/28/2023 > Jan 13 11:16:31 Zwerg kernel: Workqueue: events igc_watchdog_task [igc] > Jan 13 11:16:31 Zwerg kernel: RIP: 0010:igc_rd32+0x91/0xa0 [igc] > Jan 13 11:16:31 Zwerg kernel: Code: 48 c7 c6 d0 55 56 c0 e8 0b 7d 6c f8 48 8b > bd 28 ff ff ff e8 31 c7 23 f8 84 c0 74 b4 89 de 48 c7 c7 f8 55 56 c0 e> > Jan 13 11:16:31 Zwerg kernel: RSP: 0018:ac56d5f13df0 EFLAGS: 00010286 > Jan 13 11:16:31 Zwerg kernel: RAX: RBX: c030 > RCX: 0027 > Jan 13 11:16:31 Zwerg kernel: RDX: a046f85a03a8 RSI: 0001 > RDI: a046f85a03a0 > Jan 13 11:16:31 Zwerg kernel: RBP: a03f45710c28 R08: > R09: ac56d5f13c68 > Jan 13 11:16:31 Zwerg kernel: R10: 0003 R11: a04717f7ffe8 > R12: a03f4571 > Jan 13 11:16:31 Zwerg kernel: R13: R14: a03f456efd40 > R15: c030 > Jan 13 11:16:31 Zwerg kernel: FS: () > GS:a046f858() knlGS: > Jan 13 11:16:31 Zwerg kernel: CS: 0010 DS: ES: CR0: > 80050033 > Jan 13 11:16:31 Zwerg kernel: CR2: 7f1fc894f000 CR3: 0008a8538000 > CR4: 00750ee0 > Jan 13 11:16:31 Zwerg kernel: PKRU: 5554 > Jan 13 11:16:31 Zwerg kernel: Call Trace: > Jan 13 11:16:31 Zwerg kernel: > > > Obviously, the kernel parameter to disable PCIe power management was not > solving this problem. > > The way to recover is to restart the computer. Just to be clear, can you confirm this is or is not a regression from a previous running 6.1.y kernel? I'm asking because I suspect that this similar to https://lore.kernel.org/intel-wired-lan/20221031170535.77be0...@kernel.org/ and did not ever worked reliably with your hardware? Regards, Salvatore
Bug#1060706: linux-image-6.1.0-17-amd64: intel i225 NIC loses PCIe link, network becomes unusable
Am 13.01.2024 um 12:48 schrieb Diederik de Haas: On Saturday, 13 January 2024 11:45:29 CET Arno Lehmann wrote: Hardware name: ASUS System Product Name/ROG STRIX X670E-A GAMING WIFI, BIOS 1410 04/28/2023 Possibly not related, but there's BIOS 1807 available. I'll definitely give that a try -- when I'm physically close to the box! Thanks for reminding me! Arno -- Arno Lehmann IT-Service Lehmann Sandstr. 6, 49080 Osnabrück
Bug#1060706: linux-image-6.1.0-17-amd64: intel i225 NIC loses PCIe link, network becomes unusable
Hi Salvatore, Am 13.01.2024 um 13:47 schrieb Salvatore Bonaccorso: Just to be clear, can you confirm this is or is not a regression from a previous running 6.1.y kernel? On this hardware, the network issues appeared right from the start. First time I encountered it was with the Debian installation sime time last year, and that's where my research led me to turn off PCIe power management. Actually I don't even know which was the first kernel version I had on this host, but it's been on Bookworm for all its lifetime. I'm asking because I suspect that this similar to https://lore.kernel.org/intel-wired-lan/20221031170535.77be0...@kernel.org/ and did not ever worked reliably with your hardware? The symptoms sound quite different to me. But I can't claim to know anything interesting about the different functionalities of PCIe or the Linux way to use them... Cheers, Arno -- Arno Lehmann IT-Service Lehmann Sandstr. 6, 49080 Osnabrück
Bug#1060706: linux-image-6.1.0-17-amd64: intel i225 NIC loses PCIe link, network becomes unusable
On Saturday, 13 January 2024 16:39:51 CET Arno Lehmann wrote: > > Just to be clear, can you confirm this is or is not a regression from > > a previous running 6.1.y kernel? > > On this hardware, the network issues appeared right from the start. > ... > Actually I don't even know which was the first kernel version I had on > this host, but it's been on Bookworm for all its lifetime. Via https://snapshot.debian.org/package/linux-signed-amd64/ you have easy access to previous (6.1) kernels uploaded to Debian with which you can check if the problem was present in early 6.1 kernels. signature.asc Description: This is a digitally signed message part.
Bug#1060706: linux-image-6.1.0-17-amd64: intel i225 NIC loses PCIe link, network becomes unusable
Hi Diederik, Am 13.01.2024 um 17:13 schrieb Diederik de Haas: ... Via https://snapshot.debian.org/package/linux-signed-amd64/ you have easy access to previous (6.1) kernels uploaded to Debian with which you can check if the problem was present in early 6.1 kernels. The oldest record of this issue has happened with Linux version 6.1.0-11-amd64 As I usually keep this box updated, and the problems happens only randomly, I think the best way forward might be to try with a kernel that did *not* show this problem. Does that look reasonable? So, I have: # journalctl --grep PCIe\ link\ lost -- Boot 86e1a04baba04a409c34796c0fb079ff -- Sep 20 14:21:17 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached -- Boot da6a00d9278a422686ca46d80e2f3ca6 -- -- Boot 28fcdfe079c446c6b184bb5b6407da73 -- Okt 06 05:44:20 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached Okt 07 16:39:10 Zwerg kernel: igc :0a:00.0 (unnamed net_device) (uninitialized): PCIe link lost, device now detached -- Boot 51e3605887764b60b6d0130d4f6356c0 -- -- Boot ce944a4bbffc45b38c1357d3e822cd46 -- Okt 23 18:31:25 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached -- Boot e6d80407cab74d0b9e28b74642b544c0 -- Okt 30 11:16:06 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached Okt 31 13:50:06 Zwerg kernel: igc :0a:00.0 (unnamed net_device) (uninitialized): PCIe link lost, device now detached -- Boot 452f25ce23fe4d569490fbc42683ecd6 -- Nov 22 18:59:11 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached -- Boot f1add031e2fa495aba569ab9c374ce65 -- Nov 23 15:45:49 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached -- Boot f766dabb981e4aa49f0922d7794dea76 -- -- Boot 6d7c91a86ab44da1973f5ca716dad105 -- -- Boot 3ba3df042e0648a1aebfa4fcea5499bf -- Dez 19 07:33:02 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached -- Boot a4aea30bb33747e7853abec194a2a395 -- Jan 01 09:57:40 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached -- Boot 377a326561dc4909b45c55cffcd1a94d -- Jan 10 16:15:20 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached -- Boot 50c5a6a9cc34496984fe3cde6ba8b72a -- Jan 13 11:16:31 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached -- Boot a3c69838cab4426992a2f518a72a5e2b -- So I conclude I should look at something earlier than what was used with boot 86e1a04baba04a409c34796c0fb079ff, i.e. journalctl --boot 86e1a04baba04a409c34796c0fb079ff | head -n 1 Aug 30 18:16:18 Zwerg kernel: Linux version 6.1.0-11-amd64 (debian-ker...@lists.debian.org) (gcc-12 (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #1 SMP PREEMPT_DYNAMIC Debian 6.1.38-4 (2023-08-08) correct? Via the page you reference, I find a kernel package linux-image-6.1.0-1-amd64 6.1.4-1 which might be worth a try. I'll need some time to sort out how to install such a package... Thanks for your suggestion, Arno -- Arno Lehmann IT-Service Lehmann Sandstr. 6, 49080 Osnabrück
Bug#1060706: linux-image-6.1.0-17-amd64: intel i225 NIC loses PCIe link, network becomes unusable
On Saturday, 13 January 2024 20:22:39 CET Arno Lehmann wrote: > Am 13.01.2024 um 17:13 schrieb Diederik de Haas: > > Via https://snapshot.debian.org/package/linux-signed-amd64/ you have easy > > access to previous (6.1) kernels uploaded to Debian with which you can > > check if the problem was present in early 6.1 kernels. > > The oldest record of this issue has happened with Linux version > 6.1.0-11-amd64 > > As I usually keep this box updated, and the problems happens only > randomly, I think the best way forward might be to try with a kernel > that did *not* show this problem. > > Does that look reasonable? Yes > So I conclude I should look at something earlier than what was used with > boot 86e1a04baba04a409c34796c0fb079ff, i.e. > > journalctl --boot 86e1a04baba04a409c34796c0fb079ff | head -n 1 > Aug 30 18:16:18 Zwerg kernel: Linux version 6.1.0-11-amd64 > (debian-ker...@lists.debian.org) (gcc-12 (Debian 12.2.0-14) 12.2.0, GNU > ld (GNU Binutils for Debian) 2.40) #1 SMP PREEMPT_DYNAMIC Debian > 6.1.38-4 (2023-08-08) > > correct? > > Via the page you reference, I find a kernel package > linux-image-6.1.0-1-amd64 6.1.4-1 which might be worth a try. > > I'll need some time to sort out how to install such a package... https://snapshot.debian.org/package/linux-signed-amd64/6.1.4%2B1/#linux-image-6.1.0-1-amd64_6.1.4-1 It should be as simple as downloading that .deb file and installing it via ``dpkg -i `` or ``apt install ./`` If you also have custom kernel modules via dkms, then you'd also need the corresponding linux-headers package. https://snapshot.debian.org/package/linux/6.1.4-1/#linux-headers-6.1.0-1-amd64_6.1.4-1 You could also try version 6.1~rc3+1~exp1, but if it's present in 6.1.4-1, then I guess it's safe to say the issue is present in the whole 6.1 series and it probably has never worked (as Salvatore thought). signature.asc Description: This is a digitally signed message part.
Bug#1060706: linux-image-6.1.0-17-amd64: intel i225 NIC loses PCIe link, network becomes unusable
Hi, On Sat, Jan 13, 2024 at 04:39:51PM +0100, Arno Lehmann wrote: > Hi Salvatore, > > Am 13.01.2024 um 13:47 schrieb Salvatore Bonaccorso: > > > Just to be clear, can you confirm this is or is not a regression from > > a previous running 6.1.y kernel? > > On this hardware, the network issues appeared right from the start. > > First time I encountered it was with the Debian installation sime time last > year, and that's where my research led me to turn off PCIe power management. > > Actually I don't even know which was the first kernel version I had on this > host, but it's been on Bookworm for all its lifetime. This "feels" like its probably not really a regression, thus the similarity (though not the identical case as the referenced thread). What about newer kernels? Do 6.6.11-1 or 6.7-1~exp1 taken from unstable (resp. experimental) show the same problem? If yes, then it might be an idea to bring it upstream. Regards, Salvatore
Bug#1060706: linux-image-6.1.0-17-amd64: intel i225 NIC loses PCIe link, network becomes unusable
Hello, Am 18.01.2024 um 22:12 schrieb Salvatore Bonaccorso: Hi, On Sat, Jan 13, 2024 at 04:39:51PM +0100, Arno Lehmann wrote: Hi Salvatore, Am 13.01.2024 um 13:47 schrieb Salvatore Bonaccorso: Just to be clear, can you confirm this is or is not a regression from a previous running 6.1.y kernel? On this hardware, the network issues appeared right from the start. First time I encountered it was with the Debian installation sime time last year, and that's where my research led me to turn off PCIe power management. Actually I don't even know which was the first kernel version I had on this host, but it's been on Bookworm for all its lifetime. This "feels" like its probably not really a regression, thus the similarity (though not the identical case as the referenced thread). What about newer kernels? Do 6.6.11-1 or 6.7-1~exp1 taken from unstable (resp. experimental) show the same problem? If yes, then it might be an idea to bring it upstream. Well, tricky... at this stage, we're guessing what will tell us more -- newer kernel or an older one. And then we'll need to wait for while to see what happens. Well, tomorrow morning I'll be on site and can then install another kernel and reboot. Cheers, Arno -- Arno Lehmann IT-Service Lehmann Sandstr. 6, 49080 Osnabrück
Bug#1060706: linux-image-6.1.0-17-amd64: intel i225 NIC loses PCIe link, network becomes unusable
Hi all, I have now installed an early 6.1 kernel: $ uname -a Linux Zwerg 6.1.0-1-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.4-1 (2023-01-07) x86_64 GNU/Linux and not updated anything else. Also, still running with PCIe power management in non-default: # cat /proc/cmdline BOOT_IMAGE=/vmlinuz-6.1.0-1-amd64 root=/dev/mapper/Zwerg--vg-root ro pcie_aspm=off quiet Let's see how long this works :-) Or, rather, how much patience I have. Failures were between few hours and up to four weeks apart... Cheers, Arno -- Arno Lehmann IT-Service Lehmann Sandstr. 6, 49080 Osnabrück
Bug#1060706: linux-image-6.1.0-17-amd64: intel i225 NIC loses PCIe link, network becomes unusable)
Hi all, so, latest news. System lost access to the NVMe again and could recover from that only after powercycling. Pings, until that powercycle, worked so I assume the NIC and software above it were still functional. Rebooted into the 6.5 backported kernel, downloaded the newest BIOS, noticed the NIC getting lost, wrote the BIOS image to USB key, rebooted into the UEFI / BIOS control tool, flashed the newest firmware, set all defaults and conservative power saving settings and booted into Debian again. Kernel is # uname -a Linux Zwerg 6.5.0-0.deb12.4-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.5.10-1~bpo12+1 (2023-11-23) x86_64 GNU/Linux These are the latest such events: Jan 27 09:44:53 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached Jan 27 09:48:05 Zwerg kernel: igc :0a:00.0 (unnamed net_device) (uninitialized): PCIe link lost, device now detached Jan 27 09:52:16 Zwerg kernel: igc :0a:00.0 (unnamed net_device) (uninitialized): PCIe link lost, device now detached Feb 01 04:19:17 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached Feb 01 14:43:03 Zwerg kernel: igc :0a:00.0 (unnamed net_device) (uninitialized): PCIe link lost, device now detached Feb 08 18:33:38 Zwerg kernel: igc :0a:00.0 eno1: PCIe link lost, device now detached Feb 08 19:00:32 Zwerg kernel: igc :0b:00.0 eno1: PCIe link lost, device now detached Feb 08 19:02:38 Zwerg kernel: igc :0b:00.0 (unnamed net_device) (uninitialized): PCIe link lost, device now detached I think it's safe to say that the actual kernel version does not have an effect on those events. Naturally, the NVMe connectivity losses are not logged but I believe it might be an interesting thing to see if I can capture that. Perhaps sending system logs to USB storage might work. However, I think it would be important to understand if this ticket's topic is a matter of the igc module, or perhaps about the power or PCIe management functionality (of which I know even less). The big question: What can I do to help further pinpointing this problem? Thanks, Arno -- Arno Lehmann IT-Service Lehmann Sandstr. 6, 49080 Osnabrück
Bug#1060706: linux-image-6.1.0-17-amd64: intel i225 NIC loses PCIe link, network becomes unusable)
And another instance, and this time I thought about getting messages from an attempted igc module reloading. [Fr Feb 9 13:25:08 2024] igc :0b:00.0 eno1: PCIe link lost, device now detached [Fr Feb 9 13:25:08 2024] [ cut here ] [Fr Feb 9 13:25:08 2024] igc: Failed to read reg 0xc030! [Fr Feb 9 13:25:08 2024] WARNING: CPU: 20 PID: 84300 at drivers/net/ethernet/intel/igc/igc_main.c:6583 igc_rd32+0x8d/0xa0 [igc] [Fr Feb 9 13:25:08 2024] Modules linked in: exfat rfcomm cpufreq_userspace cpufreq_powersave cpufreq_ondemand cpufreq_conservative nfsv3 nfs_acl rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache netfs qrtr overlay cmac algif_hash algif_skcipher af_alg bnep sunrpc binfmt_misc nls_ascii nls_cp437 vfat fat ext4 mbcache jbd2 intel_rapl_msr intel_rapl_common btusb btrtl btbcm btintel btmtk bluetooth snd_hda_codec_hdmi mt7921e mt7921_common edac_mce_amd mt76_connac_lib snd_hda_intel uvcvideo snd_intel_dspcfg mt76 sha3_generic snd_intel_sdw_acpi videobuf2_vmalloc snd_usb_audio kvm_amd snd_hda_codec jitterentropy_rng uvc snd_usbmidi_lib videobuf2_memops mac80211 snd_hda_core drbg videobuf2_v4l2 libarc4 snd_rawmidi eeepc_wmi asus_nb_wmi kvm videodev snd_hwdep snd_seq_device ansi_cprng asus_wmi cfg80211 snd_pcm videobuf2_common battery irqbypass ecdh_generic ledtrig_audio ecc sparse_keymap sp5100_tco mc crc16 ccp snd_timer platform_profile rapl wmi_bmof watchdog pcspkr k10temp snd rfkill soundcore joydev sg evdev msr [Fr Feb 9 13:25:08 2024] parport_pc ppdev lp parport fuse loop efi_pstore configfs efivarfs ip_tables x_tables autofs4 xfs libcrc32c crc32c_generic sd_mod dm_crypt dm_mod uas usb_storage hid_generic amdgpu amdxcp drm_buddy gpu_sched i2c_algo_bit drm_suballoc_helper usbhid drm_display_helper hid sr_mod cec cdrom rc_core drm_ttm_helper ttm crc32_pclmul crc32c_intel drm_kms_helper ghash_clmulni_intel ahci sha512_ssse3 libahci xhci_pci sha512_generic libata xhci_hcd nvme drm nvme_core aesni_intel scsi_mod t10_pi usbcore crypto_simd igc cryptd crc64_rocksoft_generic i2c_piix4 crc64_rocksoft crc_t10dif crct10dif_generic crct10dif_pclmul scsi_common crc64 crct10dif_common usb_common video wmi gpio_amdpt gpio_generic button [Fr Feb 9 13:25:08 2024] CPU: 20 PID: 84300 Comm: kworker/20:0 Not tainted 6.5.0-0.deb12.4-amd64 #1 Debian 6.5.10-1~bpo12+1 [Fr Feb 9 13:25:08 2024] Hardware name: ASUS System Product Name/ROG STRIX X670E-A GAMING WIFI, BIOS 1904 01/29/2024 [Fr Feb 9 13:25:08 2024] Workqueue: events igc_watchdog_task [igc] [Fr Feb 9 13:25:08 2024] RIP: 0010:igc_rd32+0x8d/0xa0 [igc] [Fr Feb 9 13:25:08 2024] Code: 48 c7 c6 10 36 3a c0 e8 81 aa dd e6 48 8b bb 28 ff ff ff e8 05 12 b4 e6 84 c0 74 bc 89 ee 48 c7 c7 38 36 3a c0 e8 c3 2e 53 e6 <0f> 0b eb aa b8 ff ff ff ff e9 15 0f 04 e7 0f 1f 44 00 00 90 90 90 [Fr Feb 9 13:25:08 2024] RSP: 0018:b034cc61bdd8 EFLAGS: 00010282 [Fr Feb 9 13:25:08 2024] RAX: RBX: 97078f882cb8 RCX: 0027 [Fr Feb 9 13:25:08 2024] RDX: 97169e7213c8 RSI: 0001 RDI: 97169e7213c0 [Fr Feb 9 13:25:08 2024] RBP: c030 R08: R09: b034cc61bc68 [Fr Feb 9 13:25:08 2024] R10: 0003 R11: 9716dde3ac28 R12: 97078f882000 [Fr Feb 9 13:25:08 2024] R13: R14: 970784592d40 R15: c030 [Fr Feb 9 13:25:08 2024] FS: () GS:97169e70() knlGS: [Fr Feb 9 13:25:08 2024] CS: 0010 DS: ES: CR0: 80050033 [Fr Feb 9 13:25:08 2024] CR2: 7f5271155f80 CR3: 000434bc6000 CR4: 00750ee0 [Fr Feb 9 13:25:08 2024] PKRU: 5554 [Fr Feb 9 13:25:08 2024] Call Trace: [Fr Feb 9 13:25:08 2024] [Fr Feb 9 13:25:08 2024] ? igc_rd32+0x8d/0xa0 [igc] [Fr Feb 9 13:25:08 2024] ? __warn+0x81/0x130 [Fr Feb 9 13:25:08 2024] ? igc_rd32+0x8d/0xa0 [igc] [Fr Feb 9 13:25:08 2024] ? report_bug+0x171/0x1a0 [Fr Feb 9 13:25:08 2024] ? srso_alias_return_thunk+0x5/0x7f [Fr Feb 9 13:25:08 2024] ? prb_read_valid+0x1b/0x30 [Fr Feb 9 13:25:08 2024] ? handle_bug+0x41/0x70 [Fr Feb 9 13:25:08 2024] ? exc_invalid_op+0x17/0x70 [Fr Feb 9 13:25:08 2024] ? asm_exc_invalid_op+0x1a/0x20 [Fr Feb 9 13:25:08 2024] ? igc_rd32+0x8d/0xa0 [igc] [Fr Feb 9 13:25:08 2024] ? igc_rd32+0x8d/0xa0 [igc] [Fr Feb 9 13:25:08 2024] igc_update_stats+0x8a/0x6d0 [igc] [Fr Feb 9 13:25:08 2024] igc_watchdog_task+0x9d/0x4a0 [igc] [Fr Feb 9 13:25:08 2024] process_one_work+0x1df/0x3e0 [Fr Feb 9 13:25:08 2024] worker_thread+0x51/0x390 [Fr Feb 9 13:25:08 2024] ? __pfx_worker_thread+0x10/0x10 [Fr Feb 9 13:25:08 2024] kthread+0xe5/0x120 [Fr Feb 9 13:25:08 2024] ? __pfx_kthread+0x10/0x10 [Fr Feb 9 13:25:08 2024] ret_from_fork+0x31/0x50 [Fr Feb 9 13:25:08 2024] ? __pfx_kthread+0x10/0x10 [Fr Feb 9 13:25:08 2024] ret_from_fork_asm+0x1b/0x30 [Fr Feb 9 13:25:08 2024] [Fr Feb 9 13:25:08 2024] ---[ end trace 000
Bug#1060706: linux-image-6.1.0-17-amd64: intel i225 NIC loses PCIe link, network becomes unusable)
On Friday, 9 February 2024 13:39:23 CET Arno Lehmann wrote: > [Fr Feb 9 13:25:08 2024] CPU: 20 PID: 84300 Comm: kworker/20:0 Not > tainted 6.5.0-0.deb12.4-amd64 #1 Debian 6.5.10-1~bpo12+1 > [Fr Feb 9 13:25:08 2024] Hardware name: ASUS System Product Name/ROG > STRIX X670E-A GAMING WIFI, BIOS 1904 01/29/2024 I see you have (now) an up-to-date BIOS. Good. > [Fr Feb 9 13:25:08 2024] Workqueue: events igc_watchdog_task [igc] > [Fr Feb 9 13:25:08 2024] RIP: 0010:igc_rd32+0x8d/0xa0 [igc] > [Fr Feb 9 13:25:08 2024] Code: 48 c7 c6 10 36 3a c0 e8 81 aa dd e6 48 > 8b bb 28 ff ff ff e8 05 12 b4 e6 84 c0 74 bc 89 ee 48 c7 c7 38 36 3a c0 > e8 c3 2e 53 e6 <0f> 0b eb aa b8 ff ff ff ff e9 15 0f 04 e7 0f 1f 44 00 > 00 90 90 90 > [Fr Feb 9 13:25:08 2024] RSP: 0018:b034cc61bdd8 EFLAGS: 00010282 > [Fr Feb 9 13:25:08 2024] RAX: RBX: 97078f882cb8 > RCX: 0027 > [Fr Feb 9 13:25:08 2024] RDX: 97169e7213c8 RSI: 0001 > RDI: 97169e7213c0 > [Fr Feb 9 13:25:08 2024] RBP: c030 R08: > R09: b034cc61bc68 > [Fr Feb 9 13:25:08 2024] R10: 0003 R11: 9716dde3ac28 > R12: 97078f882000 > [Fr Feb 9 13:25:08 2024] R13: R14: 970784592d40 > R15: c030 > [Fr Feb 9 13:25:08 2024] FS: () > GS:97169e70() knlGS: > [Fr Feb 9 13:25:08 2024] CS: 0010 DS: ES: CR0: 80050033 > [Fr Feb 9 13:25:08 2024] CR2: 7f5271155f80 CR3: 000434bc6000 > CR4: 00750ee0 > [Fr Feb 9 13:25:08 2024] PKRU: 5554 > [Fr Feb 9 13:25:08 2024] Call Trace: > [Fr Feb 9 13:25:08 2024] > [Fr Feb 9 13:25:08 2024] ? igc_rd32+0x8d/0xa0 [igc] > [Fr Feb 9 13:25:08 2024] ? __warn+0x81/0x130 > [Fr Feb 9 13:25:08 2024] ? igc_rd32+0x8d/0xa0 [igc] > [Fr Feb 9 13:25:08 2024] ? report_bug+0x171/0x1a0 > [Fr Feb 9 13:25:08 2024] ? srso_alias_return_thunk+0x5/0x7f > [Fr Feb 9 13:25:08 2024] ? prb_read_valid+0x1b/0x30 > [Fr Feb 9 13:25:08 2024] ? handle_bug+0x41/0x70 > [Fr Feb 9 13:25:08 2024] ? exc_invalid_op+0x17/0x70 > [Fr Feb 9 13:25:08 2024] ? asm_exc_invalid_op+0x1a/0x20 > [Fr Feb 9 13:25:08 2024] ? igc_rd32+0x8d/0xa0 [igc] > [Fr Feb 9 13:25:08 2024] ? igc_rd32+0x8d/0xa0 [igc] > [Fr Feb 9 13:25:08 2024] igc_update_stats+0x8a/0x6d0 [igc] > [Fr Feb 9 13:25:08 2024] igc_watchdog_task+0x9d/0x4a0 [igc] > [Fr Feb 9 13:25:08 2024] process_one_work+0x1df/0x3e0 > [Fr Feb 9 13:25:08 2024] worker_thread+0x51/0x390 > [Fr Feb 9 13:25:08 2024] ? __pfx_worker_thread+0x10/0x10 > [Fr Feb 9 13:25:08 2024] kthread+0xe5/0x120 > [Fr Feb 9 13:25:08 2024] ? __pfx_kthread+0x10/0x10 > [Fr Feb 9 13:25:08 2024] ret_from_fork+0x31/0x50 > [Fr Feb 9 13:25:08 2024] ? __pfx_kthread+0x10/0x10 > [Fr Feb 9 13:25:08 2024] ret_from_fork_asm+0x1b/0x30 > [Fr Feb 9 13:25:08 2024] > [Fr Feb 9 13:25:08 2024] ---[ end trace ]--- > > Can anybody suggest what information I can provide to tackle this? I think it's best to take this issue upstream. $ scripts/get_maintainer.pl drivers/net/ethernet/intel/igc/ returned this: Jesse Brandeburg (supporter:INTEL ETHERNET DRIVERS) Tony Nguyen (supporter:INTEL ETHERNET DRIVERS) "David S. Miller" (maintainer:NETWORKING DRIVERS) Eric Dumazet (maintainer:NETWORKING DRIVERS) Jakub Kicinski (maintainer:NETWORKING DRIVERS) Paolo Abeni (maintainer:NETWORKING DRIVERS) intel-wired-...@lists.osuosl.org (moderated list:INTEL ETHERNET DRIVERS) net...@vger.kernel.org (open list:NETWORKING DRIVERS) linux-ker...@vger.kernel.org (open list) To do that, I'd certainly send an email to net...@vger.kernel.org as that is the Mailing List. You can choose to add others from that list too. In that email I recommend to include the following info: - Description of the problems: I'd focus on the NIC stuff, but do also mention the issue you encountered with NVMe. - A list or table with the kernel versions you detected the problem with. Try to find/use the upstream version as the Debian version (6.1.0-17) is often not (that) useful for the upstream maintainers. `uname -a` will show both. Via https://tracker.debian.org/pkg/linux I found that 6.1.0-17 is upstream version 6.1.69 as the 6.1.69-1 upload had "Bump ABI to 17" at the end of the changelog. IIUC this is not a regression; mention that too. - A/The stacktrace(s) you got. This usually allows the upstream maintainers to pinpoint where the problem lies. HTH signature.asc Description: This is a digitally signed message part.
Bug#1060706: linux-image-6.1.0-17-amd64: intel i225 NIC loses PCIe link, network becomes unusable)
Reported upstream, see https://lore.kernel.org/netdev/3179622f-7090-4a57-98ba-9042809a0...@its-lehmann.de/T/#u keep your fingers crossed this will have someone interested ;-) Cheers, Arno -- Arno Lehmann IT-Service Lehmann Sandstr. 6, 49080 Osnabrück
Bug#1060706: linux-image-6.1.0-17-amd64: intel i225 NIC loses PCIe link, network becomes unusable)
Control: forwarded -1 https://lore.kernel.org/netdev/3179622f-7090-4a57-98ba-9042809a0...@its-lehmann.de/ On Monday, 12 February 2024 12:56:45 CET Arno Lehmann wrote: > Reported upstream, see > > https://lore.kernel.org/netdev/3179622f-7090-4a57-98ba-9042809a0d2a@its-lehm > ann.de/T/#u Excellent, thanks signature.asc Description: This is a digitally signed message part.
Bug#1060706: linux-image-6.1.0-17-amd64: intel i225 NIC loses PCIe link, network becomes unusable
Another one: [Do Feb 1 04:19:21 2024] igc :0a:00.0 eno1: PCIe link lost, device now detached [Do Feb 1 04:19:21 2024] [ cut here ] [Do Feb 1 04:19:21 2024] igc: Failed to read reg 0xc030! [Do Feb 1 04:19:21 2024] WARNING: CPU: 6 PID: 90291 at drivers/net/ethernet/intel/igc/igc_main.c:6384 igc_rd32+0x91/0xa0 [igc] [Do Feb 1 04:19:21 2024] Modules linked in: rfcomm cpufreq_userspace cpufreq_powersave cpufreq_ondemand cpufreq_conservative nfsv3 nfs_acl rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache netfs qrtr overlay cmac algif_hash algif_skcipher af_alg bnep sunrpc binfmt_misc nls_ascii nls_cp437 vfat fat ext4 mbcache jbd2 intel_rapl_msr intel_rapl_common btusb btrtl btbcm btintel btmtk bluetooth edac_mce_amd jitterentropy_rng kvm_amd snd_hda_codec_hdmi uvcvideo drbg snd_hda_intel kvm eeepc_wmi videobuf2_vmalloc ansi_cprng videobuf2_memops snd_intel_dspcfg snd_intel_sdw_acpi snd_usb_audio snd_hda_codec videobuf2_v4l2 asus_wmi platform_profile videobuf2_common battery snd_usbmidi_lib ccp sparse_keymap irqbypass ecdh_generic sp5100_tco snd_hda_core snd_rawmidi ledtrig_audio ecc crc16 rapl rfkill videodev pcspkr wmi_bmof snd_seq_device rng_core watchdog k10temp snd_hwdep mc snd_pcm snd_timer joydev snd soundcore sg acpi_cpufreq evdev msr parport_pc ppdev lp parport fuse loop efi_pstore [Do Feb 1 04:19:21 2024] configfs efivarfs ip_tables x_tables autofs4 xfs libcrc32c crc32c_generic dm_crypt dm_mod hid_generic amdgpu gpu_sched drm_buddy i2c_algo_bit drm_display_helper usbhid hid cec sr_mod rc_core cdrom drm_ttm_helper ttm crc32_pclmul crc32c_intel drm_kms_helper ahci ghash_clmulni_intel sha512_ssse3 libahci xhci_pci sha512_generic libata xhci_hcd nvme drm nvme_core aesni_intel usbcore igc scsi_mod t10_pi crypto_simd crc64_rocksoft_generic cryptd crc64_rocksoft i2c_piix4 crc_t10dif ptp crct10dif_generic crct10dif_pclmul crc64 pps_core crct10dif_common usb_common scsi_common video wmi gpio_amdpt gpio_generic button [Do Feb 1 04:19:21 2024] CPU: 6 PID: 90291 Comm: kworker/6:2 Not tainted 6.1.0-1-amd64 #1 Debian 6.1.4-1 [Do Feb 1 04:19:21 2024] Hardware name: ASUS System Product Name/ROG STRIX X670E-A GAMING WIFI, BIOS 1410 04/28/2023 [Do Feb 1 04:19:21 2024] Workqueue: events igc_watchdog_task [igc] [Do Feb 1 04:19:21 2024] RIP: 0010:igc_rd32+0x91/0xa0 [igc] [Do Feb 1 04:19:21 2024] Code: 48 c7 c6 f8 b4 71 c0 e8 78 08 90 f0 48 8b bd 28 ff ff ff e8 d1 50 48 f0 84 c0 74 b4 89 de 48 c7 c7 20 b5 71 c0 e8 b3 34 8c f0 <0f> 0b eb a2 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 41 56 [Do Feb 1 04:19:21 2024] RSP: 0018:afa297007df0 EFLAGS: 00010282 [Do Feb 1 04:19:21 2024] RAX: RBX: c030 RCX: [Do Feb 1 04:19:21 2024] RDX: 0002 RSI: b193289e RDI: [Do Feb 1 04:19:21 2024] RBP: 988bd7b88c20 R08: R09: afa297007c78 [Do Feb 1 04:19:21 2024] R10: 0003 R11: 989b17f7ffe8 R12: 988bd7b88000 [Do Feb 1 04:19:21 2024] R13: R14: 989345341d40 R15: c030 [Do Feb 1 04:19:21 2024] FS: () GS:989af840() knlGS: [Do Feb 1 04:19:21 2024] CS: 0010 DS: ES: CR0: 80050033 [Do Feb 1 04:19:21 2024] CR2: 7f6ce7d94000 CR3: 0008850cc000 CR4: 00750ee0 [Do Feb 1 04:19:21 2024] PKRU: 5554 [Do Feb 1 04:19:21 2024] Call Trace: [Do Feb 1 04:19:21 2024] [Do Feb 1 04:19:21 2024] igc_update_stats+0x86/0x6c0 [igc] [Do Feb 1 04:19:21 2024] igc_watchdog_task+0xa3/0x2c0 [igc] [Do Feb 1 04:19:21 2024] process_one_work+0x1c7/0x380 [Do Feb 1 04:19:21 2024] worker_thread+0x4d/0x380 [Do Feb 1 04:19:21 2024] ? _raw_spin_lock_irqsave+0x23/0x50 [Do Feb 1 04:19:21 2024] ? rescuer_thread+0x3a0/0x3a0 [Do Feb 1 04:19:21 2024] kthread+0xe9/0x110 [Do Feb 1 04:19:21 2024] ? kthread_complete_and_exit+0x20/0x20 [Do Feb 1 04:19:21 2024] ret_from_fork+0x22/0x30 [Do Feb 1 04:19:21 2024] [Do Feb 1 04:19:21 2024] ---[ end trace ]--- next round: trying a more bleeding-edge kernel from backports... # uname -a Linux Zwerg 6.5.0-0.deb12.4-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.5.10-1~bpo12+1 (2023-11-23) x86_64 GNU/Linux is what I just booted into. Now -- we wait. Cheers, Arno
Bug#1060706: linux-image-6.1.0-17-amd64: intel i225 NIC loses PCIe link, network becomes unusable
FWIW I'm having the same problems. Granted, this NIC is in a Thunderbolt dock, so one can't exclude this as a factor, but the errors are identical. This is even the case running the 6.7.1-1~exp1 kernel from experimental.
Bug#1060706: Info received (Bug#1060706: linux-image-6.1.0-17-amd64: intel i225 NIC loses PCIe link, network becomes unusable)
Some news, but unfortunately not helping me to understand what we see :-) Network link was lost during the day. dmesg shows this: [Tue Jan 23 06:54:24 2024] igc :0a:00.0 eno1: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX [Tue Jan 23 16:24:13 2024] [drm:retrieve_link_cap [amdgpu]] *ERROR* retrieve_link_cap: Read receiver caps dpcd data failed. [Tue Jan 23 23:09:16 2024] igc :0a:00.0 eno1: NIC Link is Down [Tue Jan 23 23:09:19 2024] igc :0a:00.0 eno1: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX [Wed Jan 24 12:00:23 2024] systemd-journald[750]: [Wed Jan 24 14:46:17 2024] nfs: server not responding, timed out [Wed Jan 24 14:46:17 2024] nfs: server not responding, timed out [Wed Jan 24 17:00:09 2024] nfs: server not responding, timed out Here, I rmmod'ed the igc module and modprobe'd it immediately. [Wed Jan 24 17:00:36 2024] igc :0a:00.0 eno1: PHC removed [Wed Jan 24 17:00:42 2024] Intel(R) 2.5G Ethernet Linux Driver [Wed Jan 24 17:00:42 2024] Copyright(c) 2018 Intel Corporation. [Wed Jan 24 17:00:42 2024] igc :0a:00.0: PCIe PTM not supported by PCIe bus/controller [Wed Jan 24 17:00:42 2024] pps pps0: new PPS source ptp0 [Wed Jan 24 17:00:42 2024] igc :0a:00.0 (unnamed net_device) (uninitialized): PHC added [Wed Jan 24 17:00:42 2024] igc :0a:00.0: 4.000 Gb/s available PCIe bandwidth (5.0 GT/s PCIe x1 link) [Wed Jan 24 17:00:42 2024] igc :0a:00.0 eth0: MAC: c8:7f:54:67:6d:cc [Wed Jan 24 17:00:42 2024] igc :0a:00.0 eno1: renamed from eth0 [Wed Jan 24 17:00:45 2024] igc :0a:00.0 eno1: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX [Wed Jan 24 17:00:45 2024] IPv6: ADDRCONF(NETDEV_CHANGE): eno1: link becomes ready So, we have a case of the NIC becoming unresponsive for some reason, but I can not see or even guess the reason. I'll leave the system as it is for a few more days, I think, and then try a much newer kernel. Or -- any better suggestions? Cheers, Arno -- Arno Lehmann IT-Service Lehmann Sandstr. 6, 49080 Osnabrück