Bug#946645: KillUserProcesses=no disregarded for some cgroups

[Michael Biebl]

Control: tags -1 moreinfo unreproducible

On Thu, 12 Dec 2019 19:05:09 +0100 chrysn <chrysn at fsfe.org> wrote:
> Package: systemd
> Version: 244-3
> Severity: normal
> File: /usr/share/man/man5/logind.conf.5.gz
> 
> The documentation about KillUserProcesses claims that processes will be
> left alive after user logout when set to "no", and specifically mentions
> tmux as one application.
> 
> This is only correct under some circumstances (apparently related to
> cgroups, but I'm not familiar enough with them to give good details).
> The observed issue is as follows:
> 
> * In a fresh sid installation, start Gnome under X11 (Wayland not
>   tested).
> * Alt+F2, xterm
> * tmux
> * Ensure you recognize the screen again later on
> * Log out
> * Log in back again, open xterm again
> * tmux attach: "no sessions" -- the session was killed

This works fine for me, so I can reproduce the issue with the given
information.
Do you have libpam-systemd installed and enabled?

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