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
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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.
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