Hi, I am currently running Fedora 28. I did a dnf upgrade this morning, and it upgraded the kernel to 4.19.
Linux morgoth.localdomain 4.19.4-200.fc28.x86_64 After rebooting to the new kernel, I found I could not connect to anything over ethernet. I rebooted to the previous kernel, which was 4.18. Linux morgoth.localdomain 4.18.18-200.fc28.x86_64 My connection worked again. I went looking in the journal for entries related to the ifname. Under the 4.19 kernel, I found the following entries(sorry for the wrapping, I can't seem to turn it off). -- Logs begin at Thu 2018-05-10 18:16:12 EDT, end at Thu 2018-11-29 14:05:16 EST. -- Nov 29 13:58:38 morgoth.localdomain kernel: r8169 0000:06:00.0 enp6s0: renamed from eth0 Nov 29 13:59:29 morgoth.localdomain NetworkManager[920]: <info> [1543517969.1764] ifcfg-rh: new connection /etc/sysconfig/network-scripts/ifcfg-enp6s0 (8719d767-2f8e-3fc1-a9e2-522bde03a5a7,"enp6s0") Nov 29 13:59:30 morgoth.localdomain NetworkManager[920]: <info> [1543517970.4361] manager: (enp6s0): new Ethernet device (/org/freedesktop/NetworkManager/Devices/2) Nov 29 13:59:30 morgoth.localdomain NetworkManager[920]: <info> [1543517970.4371] device (enp6s0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external') Nov 29 13:59:30 morgoth.localdomain kernel: IPv6: ADDRCONF(NETDEV_UP): enp6s0: link is not ready Nov 29 13:59:30 morgoth.localdomain kernel: IPv6: ADDRCONF(NETDEV_UP): enp6s0: link is not ready For the 4.18 kernel, I get the following, plus many more lines after it is connected. -- Logs begin at Thu 2018-05-10 18:16:12 EDT, end at Thu 2018-11-29 14:10:03 EST. -- Nov 29 14:08:04 morgoth.localdomain kernel: r8169 0000:06:00.0 enp6s0: renamed from eth0 Nov 29 14:08:59 morgoth.localdomain NetworkManager[930]: <info> [1543518539.5379] ifcfg-rh: new connection /etc/sysconfig/network-scripts/ifcfg-enp6s0 (8719d767-2f8e-3fc1-a9e2-522bde03a5a7,"enp6s0") Nov 29 14:09:00 morgoth.localdomain NetworkManager[930]: <info> [1543518540.6720] manager: (enp6s0): new Ethernet device (/org/freedesktop/NetworkManager/Devices/2) Nov 29 14:09:00 morgoth.localdomain NetworkManager[930]: <info> [1543518540.6731] device (enp6s0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external') Nov 29 14:09:00 morgoth.localdomain kernel: IPv6: ADDRCONF(NETDEV_UP): enp6s0: link is not ready Nov 29 14:09:00 morgoth.localdomain kernel: r8169 0000:06:00.0 enp6s0: link down Nov 29 14:09:00 morgoth.localdomain kernel: IPv6: ADDRCONF(NETDEV_UP): enp6s0: link is not ready Nov 29 14:09:02 morgoth.localdomain NetworkManager[930]: <info> [1543518542.3332] device (enp6s0): carrier: link connected Nov 29 14:09:02 morgoth.localdomain kernel: r8169 0000:06:00.0 enp6s0: link up Nov 29 14:09:02 morgoth.localdomain kernel: IPv6: ADDRCONF(NETDEV_CHANGE): enp6s0: link becomes ready Looking at these, I did a search for r8169. The 4.19 kernel gives the following. -- Logs begin at Thu 2018-05-10 18:16:12 EDT, end at Thu 2018-11-29 14:46:52 EST. -- Nov 29 13:58:37 morgoth.localdomain kernel: libphy: r8169: probed Nov 29 13:58:37 morgoth.localdomain kernel: r8169 0000:06:00.0 eth0: RTL8168c/8111c, a4:ba:db:f9:fa:9d, XID 3c4000c0, IRQ 33 Nov 29 13:58:37 morgoth.localdomain kernel: r8169 0000:06:00.0 eth0: jumbo features [frames: 6128 bytes, tx checksumming: ko] Nov 29 13:58:38 morgoth.localdomain kernel: r8169 0000:06:00.0 enp6s0: renamed from eth0 Nov 29 13:59:30 morgoth.localdomain kernel: Generic PHY r8169-600:00: attached PHY driver [Generic PHY] (mii_bus:phy_addr=r8169-600:00, irq=IGNORE) The 4.18 kernel shows the following. -- Logs begin at Thu 2018-05-10 18:16:12 EDT, end at Thu 2018-11-29 14:46:52 EST. -- Nov 29 14:08:03 morgoth.localdomain kernel: r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded Nov 29 14:08:03 morgoth.localdomain kernel: r8169 0000:06:00.0: can't disable ASPM; OS doesn't have ASPM control Nov 29 14:08:03 morgoth.localdomain kernel: r8169 0000:06:00.0 eth0: RTL8168c/8111c, a4:ba:db:f9:fa:9d, XID 3c4000c0, IRQ 33 Nov 29 14:08:03 morgoth.localdomain kernel: r8169 0000:06:00.0 eth0: jumbo features [frames: 6128 bytes, tx checksumming: ko] Nov 29 14:08:04 morgoth.localdomain kernel: r8169 0000:06:00.0 enp6s0: renamed from eth0 Nov 29 14:09:00 morgoth.localdomain kernel: r8169 0000:06:00.0 enp6s0: link down Nov 29 14:09:02 morgoth.localdomain kernel: r8169 0000:06:00.0 enp6s0: link up Is there something obvious to do that will get the 4.19 kernel connecting? Is there someother information that would help find the problem? Thanks for any help. -- Lester M Petrie
-- Logs begin at Thu 2018-05-10 18:16:12 EDT, end at Thu 2018-11-29 14:05:16 EST. -- Nov 29 13:58:38 morgoth.localdomain kernel: r8169 0000:06:00.0 enp6s0: renamed from eth0 Nov 29 13:59:29 morgoth.localdomain NetworkManager[920]: <info> [1543517969.1764] ifcfg-rh: new connection /etc/sysconfig/network-scripts/ifcfg-enp6s0 (8719d767-2f8e-3fc1-a9e2-522bde03a5a7,"enp6s0") Nov 29 13:59:30 morgoth.localdomain NetworkManager[920]: <info> [1543517970.4361] manager: (enp6s0): new Ethernet device (/org/freedesktop/NetworkManager/Devices/2) Nov 29 13:59:30 morgoth.localdomain NetworkManager[920]: <info> [1543517970.4371] device (enp6s0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external') Nov 29 13:59:30 morgoth.localdomain kernel: IPv6: ADDRCONF(NETDEV_UP): enp6s0: link is not ready Nov 29 13:59:30 morgoth.localdomain kernel: IPv6: ADDRCONF(NETDEV_UP): enp6s0: link is not ready
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