Print Page - [SOLVED} dbus logs where do they go?

Title: [SOLVED} dbus logs where do they go?
Post by: replabrobin on 09 May 2025, 10:22:22

I run up to date x86_64 artix with runit init. I have dbus 1.16.2-1.1 and it has these run scripts
/etc/runit/sv/dbus/run

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#!/bin/sh
dbus-uuidgen --ensure=/etc/machine-id
[ -d /run/dbus ] || install -m755 -g 81 -o 81 -d /run/dbus
exec dbus-daemon --system --nofork --nopidfile

and /etc/runit/sv/dbus/log/run

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#!/bin/sh
exec 2>&1; set -e

[ -d /var/log/dbus ] || install -dm 755 /var/log/dbus

exec svlogd -tt /var/log/dbus

All the processes appear to be running as expected eg ps shows

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runsv dbus
svlogd -tt /var/log/dbus
dbus-daemon --system --nofork --nopidfile

however, in the runsvdir proctitle log I see this

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runsvdir -P /run/runit/service log: ve keysym XF86DoNotDisturb Errors f.......lly (0). Closing log file. dbus-daemon[1257]: [system]....ctivated service 'org.freedesktop.login1'

the log in /var/log/dbus/current ends with

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2022-11-21_14:41:43.25838 wlan0: CTRL-EVENT-TERMINATING

so this file is not being written with modern logs. The running daemon is called dbus-daemon and it's log gets closed. This runit setu goes back a long way so is there something I need to rename to get the dbus logs? Perhaps /etc/runit/dbus should be /etc/runit/dbus-daemon or?

Title: Re: dbus logs where do they go?
Post by: capezotte on 09 May 2025, 22:59:16

That's an oversight in the package script. There should be a 2>&1 at the end of the exec dbus-daemon ... line.

That "Closing log file" is probably from another program, readproctitle mixes up everything that has a non-redirected stderr.

Since there's no "--nosyslog" argument in the run script, maybe you can find dbus's logs in metalog/syslog-ng/etc.'s output.

Title: Re: dbus logs where do they go?
Post by: replabrobin on 10 May 2025, 09:34:59

Thanks; yes that works fine. I get the following new log

2025-05-10_07:19:39.80289 dbus[2108]: Unknown username "pulse" in message bus configuration file

now I wonder what/where is message bus configuration file. I see that /usr/share/dbus-1/system.d/pulseaudio-system.conf contains a reference to pulse, but passwd has no such user.

Title: Re: dbus logs where do they go?
Post by: capezotte on 10 May 2025, 17:40:41

AFAIK, /usr/share/dbus-1/system.conf and the system.d folder next to it are merged as the configuration when the "main" (system-wide) D-Bus is loaded. I think your diagnosis of the cause is correct.

I wouldn't worry about it though, since PulseAudio by default runs per-user and you have to go out of your way to make it system-wide.

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Artix Linux => System => Topic started by: replabrobin on 09 May 2025, 10:22:22