** Merge proposal linked: https://code.launchpad.net/~paride/curtin/+git/curtin/+merge/391534
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1888726 Title: systemd-udevd regression: some renamed network interfaces stuck in "pending" state Status in netplan.io package in Ubuntu: Confirmed Status in systemd package in Ubuntu: Invalid Bug description: Summary: In Ubuntu Server 20.04 LTS and newer, using netplan.io and systemd- networkd, in certain network configurations, renamed network interfaces get stuck in "pending" state and are not configured properly. On boot, system is stuck on "Wait for Network to be Configured" for 2 minutes. How to reproduce: 1. Configure a machine (for example, a virtual machine) with two Ethernet network cards. Make note of MAC addresses of these network cards. 2. Set up netplan with a single configuration file, contents are in the attached "00-static.yaml" file. Replace the MAC addresses to match your setup. IP address configuration is omitted and is not necessary to reproduce the bug. 3. Reboot the system. Expected outcome: 1. System boots in a reasonable time 2. First network interface (wan) is brought up, is not renamed, and is marked as configured by networkd 3. Second network interface (lan) is brought up, renamed, configured for MTU=9000, and is marked as configured by networkd 4. VLAN interface (vlan20) is brought up, renamed, configured for MTU=9000, and is marked as configured by networkd Actual outcome: 1. System boot is delayed by 2 minutes 2. First network interface (wan) is configured as expected 3. Second network interface (lan) is configured as expected 4. VLAN interface (vlan20) seems to be configured as expected, but is stuck in "pending" state according to networkctl list Test environment: Hardware: Virtual machine with the following configuration * 4 amd64 CPU cores (also tested with a single core) * 1 GB RAM * 8 GB disk * 2 network cards (vmxnet3 in VMware, virtio in Parallels) Working as expected: * [1] Ubuntu Server 19.10, kernel 5.3.0-62, netplan.io 0.99-0ubuntu3~19.10.2, systemd+udev 242-7ubuntu3.11 Broken: * [2] Ubuntu Server 19.10, kernel 5.3.0-62, netplan.io 0.99-0ubuntu3~19.10.2, systemd 242-7ubuntu3.11, udev 245.4-4ubuntu3.1 * [3] Ubuntu Server 20.04 LTS, kernel 5.4.0-42, netplan.io 0.99-0ubuntu3~20.04.2, systemd+udev 245.4-4ubuntu3.1 * [4] Ubuntu Server 20.04 LTS, kernel 5.4.0-42, netplan.io 0.99-0ubuntu3~20.04.2, systemd+udev vanilla upstream git e9769453 * [5] Ubuntu Server 20.04 LTS, kernel 5.4.0-42, netplan.io 0.99-0ubuntu3~20.04.2, systemd+udev vanilla upstream git v242 * [6] Ubuntu Server 20.10 daily-live, kernel 5.4.0-26, netplan.io 0.99-0ubuntu5, systemd+udev 245.6-3ubuntu3 [2] As noted above, issue was reproduced in 19.10 by upgrading ONLY udev and libudev1 to ones shipped in focal-updates. [4] It was also reproduced in vanilla upstream systemd, git master commit e9769453. Just installed on top of existing systemd using "sudo ninja -C build install". [5] Interestingly enough, issue also seems to exist in vanilla v242. Either that, or the installation didn't replace the packaged systemd properly. This may hint at some distribution-specific patch that got removed before 20.04. This issue was reproduced in VMware ESXi 6.7U3, VMware Fusion 11.5.5 and Parallels Desktop 15.1.4. This leads me to believe that network card drivers or virtualisation engines do not play part in the issue. Extra observations: To make the example configuration (00-static.yaml) not get stuck in "pending" state, any one of the following options helps: * Remove "set-name" parameter for "lan" interface * Remove "mtu" parameter for "lan" interface * Remove "wan" interface entirely I got some data/logs for each of these scenarios for eoan [1] and focal [3], as well as the original broken config, and put them together in the attached "parallels.tar.gz". Note about Apport: Attached apport report was generated for test environment [2] above. Attachments: * 00-static.yaml: minimalistic broken netplan configuration example * parallels.tar.gz: various logs for eoan [1] and focal [3], as described in "Extra observations" above ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: udev 245.4-4ubuntu3.2 ProcVersionSignature: Ubuntu 5.3.0-62.56-generic 5.3.18 Uname: Linux 5.3.0-62-generic x86_64 ApportVersion: 2.20.11-0ubuntu8.9 Architecture: amd64 CustomUdevRuleFiles: 70-snap.core.rules Date: Thu Jul 23 18:54:58 2020 InstallationDate: Installed on 2020-07-22 (1 days ago) InstallationMedia: Ubuntu-Server 19.10 "Eoan Ermine" - Release amd64 (20191017) Lsusb: Error: command ['lsusb'] failed with exit code 1: MachineType: Parallels Software International Inc. Parallels Virtual Platform ProcEnviron: TERM=linux PATH=(custom, no user) LANG=C.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-62-generic root=UUID=c42113c4-0f7a-44bc-a6ae-b27e2b146723 ro SourcePackage: systemd UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/13/2020 dmi.bios.vendor: Parallels Software International Inc. dmi.bios.version: 15.1.4 (47270) dmi.board.name: Parallels Virtual Platform dmi.board.vendor: Parallels Software International Inc. dmi.board.version: None dmi.chassis.type: 10 dmi.chassis.vendor: Parallels Software International Inc. dmi.modalias: dmi:bvnParallelsSoftwareInternationalInc.:bvr15.1.4(47270):bd04/13/2020:svnParallelsSoftwareInternationalInc.:pnParallelsVirtualPlatform:pvrNone:rvnParallelsSoftwareInternationalInc.:rnParallelsVirtualPlatform:rvrNone:cvnParallelsSoftwareInternationalInc.:ct10:cvr: dmi.product.family: Parallels VM dmi.product.name: Parallels Virtual Platform dmi.product.sku: Undefined dmi.product.version: None dmi.sys.vendor: Parallels Software International Inc. 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