[Pkg-utopia-maintainers] Bug#804183: dbus fails to start, circular inclusion of *.dpkg-bak

[Brent S. Elmer]

Package: dbus
Version: 1.10.2-1
Severity: serious

dbus just broke my system.  I had dbus 1.10.0-3 installed on my system then I
upgraded to 1.10.2-1.  After some series of upgrades, bluetooth stopped working
so I was reverting packages that I had recently upgraded one of which was dbus.
So, I downgraded dbus from 1.10.2-1 back down to 1.10.0-3.  After I did this,
my computer failed to boot.  I was able to boot into recovery mode.

Using the journal, I found this:

● dbus.service - D-Bus System Message Bus
   Loaded: loaded (/lib/systemd/system/dbus.service; static; vendor preset:
enabled)
   Active: failed (Result: exit-code) since Thu 2015-11-05 13:39:34 CST; 8min
ago
     Docs: man:dbus-daemon(1)
  Process: 812 ExecStart=/usr/bin/dbus-daemon --system --address=systemd:
--nofork --nopidfile --systemd-activation (code=exited, status=1/FAILURE)
 Main PID: 812 (code=exited, status=1/FAILURE)

Nov 05 13:39:09 brente systemd[1]: Started D-Bus System Message Bus.
Nov 05 13:39:09 brente dbus-daemon[812]: Failed to start message bus: Circular
inclusion of file '/etc/dbus-1/system.conf.dpkg-bak'
Nov 05 13:39:34 brente systemd[1]: dbus.service: Main process exited,
code=exited, status=1/FAILURE
Nov 05 13:39:34 brente systemd[1]: dbus.service: Unit entered failed state.
Nov 05 13:39:34 brente systemd[1]: dbus.service: Failed with result 'exit-
code'.


Here is what /etc/dbus-1 looks like:

lrwxrwxrwx 1 root root   30 Nov  5 09:24 session.conf ->
/usr/share/dbus-1/session.conf
lrwxrwxrwx 1 root root   30 Nov  3 13:23 session.conf.dpkg-bak ->
/usr/share/dbus-1/session.conf
-rw-r--r-- 1 root root  828 Sep 15 17:09 session.conf.dpkg-new
drwxr-xr-x 2 root root 4096 May 27 17:12 session.d
lrwxrwxrwx 1 root root   29 Nov  5 09:24 system.conf ->
/usr/share/dbus-1/system.conf
lrwxrwxrwx 1 root root   29 Nov  3 13:23 system.conf.dpkg-bak ->
/usr/share/dbus-1/system.conf
-rw-r--r-- 1 root root  823 Sep 15 17:09 system.conf.dpkg-new
drwxr-xr-x 2 root root 4096 Nov  4 15:02 system.d


/usr/share/dbus-1/system.conf has the following which I commented out to help
fix the problem:

<!-- Include legacy configuration that was preserved in a Debian upgrade,
       if any -->
  <!-- include ignore_missing="yes">/etc/dbus-1/system.conf.dpkg-bak</include>
-->

You can see the circular dependency.  However, we are not done yet.  That fixes
that problem but gdm3 still will not start.
I found the following in syslog after commenting system.conf as above and
rebooting:

Nov  5 14:04:49 brente /usr/bin/dbus-launch[1953]: Failed to start message bus:
Circular inclusion of file '/etc/dbus-1/session.conf.dpkg-bak'
Nov  5 14:04:49 brente /usr/bin/dbus-launch[1953]: EOF in dbus-launch reading
address from bus daemon
N

I found the following in session.conf and commented it out:

  <!-- Include legacy configuration that was preserved in a Debian upgrade,
       if any -->
  <!-- include ignore_missing="yes">/etc/dbus-1/session.conf.dpkg-bak</include>
-->

You can see the circular dependency there also.

So, I don't know what the intent was with including the dpkg-bak in the two
..conf files but it causes severe breakage.  I wasted a whole day tracking this
down.







-- System Information:
Debian Release: stretch/sid
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.16.0-4-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Init: systemd (via /run/systemd/system)

Versions of packages dbus depends on:
ii  adduser       3.113+nmu3
ii  libapparmor1  2.10-2+b1
ii  libaudit1     1:2.4.4-4
ii  libc6         2.19-22
ii  libcap-ng0    0.7.4-2
ii  libdbus-1-3   1.10.2-1
ii  libexpat1     2.1.0-6+deb8u1
ii  libselinux1   2.3-2
ii  libsystemd0   226-4
ii  lsb-base      4.1+Debian13+nmu1

dbus recommends no packages.

Versions of packages dbus suggests:
ii  dbus-x11  1.10.2-1

Versions of packages dbus is related to:
ii  dbus-x11      1.10.2-1
ii  systemd       226-4
ii  systemd-sysv  226-4

-- no debconf information