[Bug 2060082] [NEW] Dublin timezone cause systemd cpu high

[altairchan]

Public bug reported:

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.

** Affects: systemd (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "systemd atop"
   https://bugs.launchpad.net/bugs/2060082/+attachment/5761387/+files/screenshot-20240402-142051.png

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Title:
  Dublin timezone cause systemd cpu high

Status in systemd package in Ubuntu:
  New

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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