Releases · systemd/systemd
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Systemd 254 released and now has a new soft-reboot option:

    * A new "soft-reboot" mechanism has been added to the service manager.
      A "soft reboot" is similar to a regular reboot, except that it
      affects userspace only: the service manager shuts down any running
      services and other units, then optionally switches into a new root
      file system (mounted to /run/nextroot/), and then passes control to a
      systemd instance in the new file system which then starts the system
      up again. The kernel is not rebooted and neither is the hardware,
      firmware or boot loader. This provides a fast, lightweight mechanism
      to quickly reset or update userspace, without the latency that a full
      system reset involves. Moreover, open file descriptors may be passed
      across the soft reboot into the new system where they will be passed
      back to the originating services. This allows pinning resources
      across the reboot, thus minimizing grey-out time further. This new
      reboot mechanism is accessible via the new "systemctl soft-reboot"
      command.>
  • Backslash@feddit.de
    3·
    1 year ago

    Yes they do, Mesa being one. Only the close to the metal stuff and Kernel-DRM is handled in kernel space, most of the heavy stuff is done in user space.

    • treadful@lemmy.zipEnglish
      2·
      1 year ago

      Where’s the line you’re drawing? And what would be the “heavy stuff” in user-space?

      I’m far from a kernel expert, but I still have the i915 module loaded into the kernel on this bad boy, which I think most people would call a driver.