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From: Maxim Cournoyer <maxim.cournoyer@gmail.com>
To: "Ludovic Courtès" <ludo@gnu.org>
Cc: 55444@debbugs.gnu.org
Subject: bug#55444: elogind startup race between shepherd and dbus-daemon
Date: Mon, 23 May 2022 22:27:20 -0400	[thread overview]
Message-ID: <87y1yr4qd3.fsf@gmail.com> (raw)
In-Reply-To: <877d6lc28o.fsf@inria.fr> ("Ludovic Courtès"'s message of "Mon, 16 May 2022 10:26:15 +0200")

Hi,

Ludovic Courtès <ludo@gnu.org> writes:

> Hello!
>
> Currently (40a729a0e6f1d660b942241416c1e2c567616d4d), shepherd and
> dbus-daemon compete to start elogind: shepherd tries to start it
> eagerly, and dbus-daemon starts it on-demand upon bus activation.
>
> Sometimes dbus-daemon wins, and thus shepherd tries a few times to start
> it anyway, leading to the infamous:
>
>   elogind is already running as PID 123

Do we have a system test that sometimes reproduce it, or at least the
above message?  I have some branch where I introduce some D-Bus
synchronization primitives I had started to fix
https://issues.guix.gnu.org/issue/52051, which ended up being fixed
differently (bumping the timeout value); perhaps it could be of use
here.

Thanks,

Maxim




  reply	other threads:[~2022-05-24  2:28 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-16  8:26 bug#55444: elogind startup race between shepherd and dbus-daemon Ludovic Courtès
2022-05-24  2:27 ` Maxim Cournoyer [this message]
2022-05-25 12:45   ` Ludovic Courtès
2022-05-24 19:25 ` Liliana Marie Prikler
2022-05-25 12:26   ` Ludovic Courtès
2022-05-27 13:54 ` Ludovic Courtès
2022-05-27 20:54 ` Ludovic Courtès
2022-05-28  8:13   ` Josselin Poiret via Bug reports for GNU Guix
2022-05-28 21:26     ` Ludovic Courtès

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