bug#53225: bug#58926: Shepherd becomes unresponsive after an interrupt

[Ludovic Courtès]

Mathieu Othacehe <othacehe@gnu.org> skribis:

> 1. On my laptop with a Wireguard service trying to reach a non-existing
> DNS server.
>
>             (service wireguard-service-type
>                      (wireguard-configuration
>                       (addresses (list "10.0.0.2/24"))
>                       (dns '("10.0.0.50")) #does not exit

This one is similar to:

  https://issues.guix.gnu.org/53225
  https://issues.guix.gnu.org/53381

It has to do with the fact that “wg-quick up” blocks until it succeeds
and that ‘invoke’ gets stuck on ‘waitpid’ until the “wg-quick” process
terminates.

The solution will be to use something non-blocking instead of ‘invoke’;
I’m looking into it.

Ludo’.