upgrade 7.4 --> 7.5: dbus broken

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Hi folks,

after upgrading a Centos container (LXC) from 7.4 to 7.5 I got
this:

# systemctl status
Failed to get D-Bus connection: Connection refused

# busctl
Failed to connect to bus: Connection refused

# ps -ef | grep db[u]s
dbus        55     1  0 Jul02 ?        00:00:00 /usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation

# lsof -p 55
COMMAND   PID USER   FD      TYPE             DEVICE SIZE/OFF      NODE NAME
dbus-daem  55 dbus  cwd       DIR                8,4     4096    130819 /
dbus-daem  55 dbus  rtd       DIR                8,4     4096    130819 /
dbus-daem  55 dbus  txt       REG                8,4   223344    133569 /usr/bin/dbus-daemon
dbus-daem  55 dbus  DEL       REG                8,4             393485 /var/lib/sss/mc/initgroups
dbus-daem  55 dbus  mem       REG                8,4    37240    150982 /usr/lib64/libnss_sss.so.2
dbus-daem  55 dbus  mem       REG                8,4    62184    150786 /usr/lib64/libnss_files-2.17.so
dbus-daem  55 dbus  mem       REG                8,4    68192    141459 /usr/lib64/libbz2.so.1.0.6
dbus-daem  55 dbus  mem       REG                8,4    90664    140578 /usr/lib64/libz.so.1.2.7
dbus-daem  55 dbus  mem       REG                8,4    99944    150835 /usr/lib64/libelf-0.170.so
dbus-daem  55 dbus  mem       REG                8,4    19896    140110 /usr/lib64/libattr.so.1.1.0
dbus-daem  55 dbus  mem       REG                8,4   402384    132708 /usr/lib64/libpcre.so.1.2.0
dbus-daem  55 dbus  mem       REG                8,4    88776    150757 /usr/lib64/libgcc_s-4.8.5-20150702.so.1
dbus-daem  55 dbus  mem       REG                8,4    19776    150776 /usr/lib64/libdl-2.17.so
dbus-daem  55 dbus  mem       REG                8,4   297360    151443 /usr/lib64/libdw-0.170.so
dbus-daem  55 dbus  mem       REG                8,4   106848    150792 /usr/lib64/libresolv-2.17.so
dbus-daem  55 dbus  mem       REG                8,4    19384    141564 /usr/lib64/libgpg-error.so.0.10.0
dbus-daem  55 dbus  mem       REG                8,4   535064    141290 /usr/lib64/libgcrypt.so.11.8.2
dbus-daem  55 dbus  mem       REG                8,4    85952    150956 /usr/lib64/liblz4.so.1.7.5
dbus-daem  55 dbus  mem       REG                8,4   157424    140323 /usr/lib64/liblzma.so.5.2.2
dbus-daem  55 dbus  mem       REG                8,4    44448    150794 /usr/lib64/librt-2.17.so
dbus-daem  55 dbus  mem       REG                8,4  1139680    150778 /usr/lib64/libm-2.17.so
dbus-daem  55 dbus  mem       REG                8,4    20032    140130 /usr/lib64/libcap.so.2.22
dbus-daem  55 dbus  mem       REG                8,4  2173512    146385 /usr/lib64/libc-2.17.so
dbus-daem  55 dbus  mem       REG                8,4   144792    144798 /usr/lib64/libpthread-2.17.so
dbus-daem  55 dbus  mem       REG                8,4    23968    141464 /usr/lib64/libcap-ng.so.0.0.0
dbus-daem  55 dbus  mem       REG                8,4   127096    146315 /usr/lib64/libaudit.so.1.0.0
dbus-daem  55 dbus  mem       REG                8,4   155784    150814 /usr/lib64/libselinux.so.1
dbus-daem  55 dbus  mem       REG                8,4   173320    140201 /usr/lib64/libexpat.so.1.6.0
dbus-daem  55 dbus  mem       REG                8,4   203800    151456 /usr/lib64/libsystemd.so.0.6.0
dbus-daem  55 dbus  mem       REG                8,4   333408    144514 /usr/lib64/libdbus-1.so.3.14.14
dbus-daem  55 dbus  mem       REG                8,4   164240    150767 /usr/lib64/ld-2.17.so
dbus-daem  55 dbus    0u      CHR                1,3      0t0 129677343 /dev/null
dbus-daem  55 dbus    1u     unix 0xffff8f56b7b2cc00      0t0 129677608 socket
dbus-daem  55 dbus    2u     unix 0xffff8f56b7b2cc00      0t0 129677608 socket
dbus-daem  55 dbus    3u     unix 0xffff8f56bbbb3800      0t0 129676115 /run/dbus/system_bus_socket
dbus-daem  55 dbus    4u  a_inode               0,11        0      8547 [eventpoll]
dbus-daem  55 dbus    5r      REG                8,4 10406312    393485 /var/lib/sss/mc/initgroups (deleted)
dbus-daem  55 dbus    6u     sock                0,8      0t0 129677256 protocol: NETLINK
dbus-daem  55 dbus    7r  a_inode               0,11        0      8547 inotify
dbus-daem  55 dbus    8u     unix 0xffff8f56b80c4c00      0t0 129677257 socket
dbus-daem  55 dbus    9u     unix 0xffff8f56ba3aec00      0t0 129677258 socket
dbus-daem  55 dbus   10u     unix 0xffff8f56b7681000      0t0 129681025 /run/dbus/system_bus_socket

Please note the "/run/dbus/system_bus_socket". AFAICT thats new. Shouldn't it listen
on /var/run/dbus/system_bus_socket for backward compatibility as well?


Is there is a way to fix this? Every helpful comment is highly appreciated.
Harri
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