An upstream bug report/issue was opened in April 2024: https://github.com/systemd/systemd/issues/32045
The current guess in that issue is that setting SYSTEMD_NETLINK_DEFAULT_TIMEOUT to 'infinity' might help. This sets to infinite the "timeout of waiting replies for netlink messages from the kernel. Defaults to 25 seconds." Ref: https://systemd.io/ENVIRONMENT/ [Service] Environment="SYSTEMD_NETLINK_DEFAULT_TIMEOUT=infinity" So far, it is unclear if this helps. Is there anything else that can be done by Ubuntu to assist in resolving this? ** Bug watch added: github.com/systemd/systemd/issues #32045 https://github.com/systemd/systemd/issues/32045 -- 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/2054977 Title: systemd-networkd fails to renew DHCP v4 lease when renew attempt times out Status in systemd package in Ubuntu: Expired Bug description: I'm seeing exactly what this gist describes: https://gist.github.com/raggi/1f8d0b9f45c5b62e7131b03e6e2ffe68 Summary: 1. Configure a machine with a DHCPv4 lease on a network with a DHCPv4 server. 2. Place machine under unusual load sufficient to cause a timeout on netlink requests. 3. Observe the interface failing with the following logs: systemd-networkd[139370]: eth0: Could not set DHCPv4 address: Connection timed out systemd-networkd[139370]: eth0: Failed The error seems to come from here: https://github.com/systemd/systemd/blob/v245.4/src/network/networkd-dhcp4.c#L781 Expected behavior The DHCPv4 client should retry the lease refresh when the issue is a timeout, eventually succeeding in these scenarios. Actual behavior Permanent loss of connectivity on the affected interface. Additional info: $ lsb_release -rd Description: Ubuntu 20.04.6 LTS Release: 20.04 $ apt-cache policy systemd systemd: Installed: 245.4-4ubuntu3.23 Candidate: 245.4-4ubuntu3.23 Version table: *** 245.4-4ubuntu3.23 500 500 http://ap-southeast-2.ec2.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages 500 mirror+file:/etc/apt/source-mirrors.txt focal-updates/main amd64 Packages 100 /var/lib/dpkg/status 245.4-4ubuntu3.20 500 500 http://security.ubuntu.com/ubuntu focal-security/main amd64 Packages 500 mirror+file:/etc/apt/source-mirrors.txt focal-security/main amd64 Packages 245.4-4ubuntu3 500 500 http://ap-southeast-2.ec2.archive.ubuntu.com/ubuntu focal/main amd64 Packages 500 mirror+file:/etc/apt/source-mirrors.txt focal/main amd64 Packages To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/2054977/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
