I took a bit of time to try to reproduce, without success. Here were my steps:
$ lxc launch ubuntu:jammy --vm jammy Launching jammy $ lxc exec jammy bash root@jammy:~# apt update && apt install -y atop ... root@jammy:~# systemctl stop systemd-timesyncd root@jammy:~# timedatectl set-timezone Europe/Dublin root@jammy:~# timedatectl set-time "2024-03-30 23:59:50" In another terminal before messing with the time: $ lxc exec jammy htop I did not see init eating 100% CPU, the machine remained mostly idle. Could you please provide more details on how to reproduce the bug? ** Changed in: systemd (Ubuntu Jammy) Status: New => Incomplete ** Changed in: systemd (Ubuntu) Status: Confirmed => Invalid ** Tags removed: rls-jj-incoming -- 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/2060082 Title: Dublin timezone cause systemd cpu high Status in systemd package in Ubuntu: Invalid Status in systemd source package in Jammy: Incomplete Bug description: Systemd version(249) in Jammy Jellyfish is too old, When using the Dublin time zone for daylight saving time switching,the CPU usage will suddenly increase to 100% starting from 2024-03-31 00:00:00 and last for 1 hour, but return to normal at 2024-03-31 02:00:00. plz backport the bugfix to v249 or update 255 version in Jammy Jellyfish to fix it. thank you. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/2060082/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp