GNU bug report logs - #74534
[shepherd] guix-home managed shepherd shares process group with shell

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From: Jelle Licht <jlicht <at> fsfe.org>
To: 74534 <at> debbugs.gnu.org
Cc: Tomas Volf <~@wolfsden.cz>, Ludovic Courtès <ludovic.courtes <at> inria.fr>
Subject: bug#74534: [shepherd] guix-home managed shepherd shares process group with shell
Date: Mon, 25 Nov 2024 19:52:23 +0100

Jelle Licht <jlicht <at> fsfe.org> writes:

> Cc'ing Tomas and Ludo, as they actually diagnosed the issue [0].
>
> The user shepherd, as configured using guix home, runs under the same
> process group as the shell that initially triggered guix home's
> "$HOME/.guix-home/on-first-login" script.
>
> This leads to the user shepherd receiving signals that are sent to the
> shell, such as a SIGINT/^C, and subsequently stopping entirely.
>
> If I understand the fine folks on IRC correctly, the daemonize action of
> the root-service in shepherd is missing a call to (setsid). I am
> uncertain whether this setsid call should be made conditional or not.
>
> Kind regards,
> Jelle Licht
>
> [0]: https://logs.guix.gnu.org/guix/2024-11-25.log#172506

Addendum:
running `herd eval root "(setsid)"` solves my particular issue, making
^C on my shell no longer kill my user shepherd.

- Jelle

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