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UID:pretalx-all-systems-go-2023-XVV9QY@cfp.all-systems-go.io
DTSTART;TZID=CET:20230913T123000
DTEND;TZID=CET:20230913T125500
DESCRIPTION:systemd v254 introduced a new reboot type: soft-reboot. It shor
 tcuts the reboot process by not restarting the kernel\, and instead shutti
 ng down userspace\, followed by re-exec'ing systemd from the new rootfs\, 
 starting everything up again. Not only this allows to save time by virtue 
 of doing less work\, but it also allow select resources (File Descriptor S
 tore) and select services that do not use the rootfs (Portable Services) t
 o survive the reboot and continue uninterrupted. This talk will explore th
 e details of this new feature\, how it works\, why it's useful\, what are 
 the shortcomings and how to make full use of it.
DTSTAMP:20260916T120130Z
LOCATION:Main Hall
SUMMARY:Soft Reboot: atomically replace rootfs and reboot userspace without
  kernel restart - Luca Boccassi
URL:https://cfp.all-systems-go.io/all-systems-go-2023/talk/XVV9QY/
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