Public bug reported: From the issue in the netplan tracker [1]:
During a systemd daemon-reload, the Netplan generator in /usr/lib/systemd/system-generators/netplan tries to reload the udev rules and databases with udevadm control --reload [2], which causes a deadlock, because reloading udev rules and databases requires a functioning systemd-userdbd.service, which is not the case during a systemd daemon-reload. The systemd developers will not consider making changes to any systemd component in order to prevent this deadlock, and instead suggest that the Netplan developers generate their systemd link/network/netdev units using a generator service like systemd- network-generator.service. [1] https://bugs.launchpad.net/netplan/+bug/1999178 On my machine, this causes every 'apt install' to be very slow, enabled / disabling systemd services to be slow, sudo hanging while these processes hang and so on. ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: netplan-generator 1.0-2ubuntu1 ProcVersionSignature: Ubuntu 6.5.0-35.35-generic 6.5.13 Uname: Linux 6.5.0-35-generic x86_64 ApportVersion: 2.28.1-0ubuntu3 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: GNOME Date: Sat Jun 15 12:33:39 2024 InstallationDate: Installed on 2023-09-21 (268 days ago) InstallationMedia: Ubuntu 23.04 "Lunar Lobster" - Release amd64 (20230417) SourcePackage: netplan.io UpgradeStatus: Upgraded to noble on 2024-05-28 (18 days ago) ** Affects: netplan.io (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug noble -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2069495 Title: Netplan generator causes systemd, apt and unlock hangs on 24.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/netplan.io/+bug/2069495/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
