From: "Ludovic Courtès" <ludo@gnu.org>
To: Bruno Victal <mirai@makinata.eu>
Cc: 63190@debbugs.gnu.org, bjc@spork.org
Subject: bug#63190: [Shepherd] Nested calls lead to a hang
Date: Mon, 08 May 2023 12:27:20 +0200 [thread overview]
Message-ID: <87fs87dson.fsf@gnu.org> (raw)
In-Reply-To: <87wn1lid69.fsf@gnu.org> ("Ludovic Courtès"'s message of "Sat, 06 May 2023 19:26:38 +0200")
Ludovic Courtès <ludo@gnu.org> skribis:
> Bruno Victal <mirai@makinata.eu> skribis:
>
>> Original discussion (IRC): <https://logs.guix.gnu.org/guix/2023-04-29.log#180735>
>
> [...]
>
>> (procedure
>> #~(lambda (x)
>> ;; Scenario 1: using code from (gnu services herd), this hangs shepherd
>> #;(start-service 'dummy) ; hangs shepherd
>
> (gnu services herd) provides a client to talk to the shepherd process.
> However, the code of actions runs in the shepherd process itself, so
> there’s no need to use the client library. Don’t do that. :-)
Also, the socket created in (gnu services herd) lacks SOCK_NONBLOCK so
the code above is bound to block forever.
Ludo’.
next prev parent reply other threads:[~2023-05-08 10:28 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-30 15:21 bug#63190: [Shepherd] Nested calls lead to a hang Bruno Victal
2023-05-06 17:26 ` Ludovic Courtès
2023-05-08 10:27 ` Ludovic Courtès [this message]
2023-05-12 23:01 ` Brian Cully via Bug reports for GNU Guix
2023-05-13 9:45 ` Ludovic Courtès
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