Network Manager does not start

Hi
on a system running Tumbleweed and KDE , Network Manager does not start => not internet

Also there used to be in yast network the option “Wicked …something” which was an ethernet connection … is missing ??/

Network Mrg log out of “Services Mrg”

Any idea ?

Thanks

Provide log output in text, not screenshots.

Thank you ! Very helpful, particularly without internet connection !

@ozotto copy to a USB device, that photo really doesn’t provide any information… As in journalctl --no-pager -b -u NetworkManager

@malcolmlewis

Jan 21 11:47:59 production systemd[1]: Starting Network Manager... 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.8930] NetworkManager (version 1.54.3) is 
starting... (after a restart, boot:5967b920-c375-49ff-94a1-0da5a58146a1) 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.8931] Read config: /etc/NetworkManager/Ne
tworkManager.conf, /usr/lib/NetworkManager/conf.d/conncheck-openSUSE.conf 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.8965] manager[0x561ca76f76b0]: monitoring
kernel firmware directory '/usr/lib/firmware'. 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.8984] hostname: hostname: using hostnamed 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.8985] hostname: static hostname changed f
rom (none) to "production" 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.8986] dns-mgr: init: dns=default,systemd-
resolved rc-manager=symlink (auto) 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.8996] rfkill0: found Wi-Fi radio killswit
ch (at /sys/devices/pci0000:00/0000:00:01.2/0000:20:00.0/0000:21:07.0/0000:29:00.0/ieee80211/phy0/rfkill0) (dr
iver rtl8192ce) 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.8998] manager[0x561ca76f76b0]: rfkill: Wi
-Fi hardware radio set disabled 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.8998] manager[0x561ca76f76b0]: rfkill: WW
AN hardware radio set disabled 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.9009] Loaded device plugin: NMWifiFactory
(/usr/lib64/NetworkManager/1.54.3/libnm-device-plugin-wifi.so) 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.9018] Loaded device plugin: NMWwanFactory
(/usr/lib64/NetworkManager/1.54.3/libnm-device-plugin-wwan.so) 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.9020] Loaded device plugin: NMBluezManage
r (/usr/lib64/NetworkManager/1.54.3/libnm-device-plugin-bluetooth.so) 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.9021] manager: rfkill: Wi-Fi disabled by 
radio killswitch; disabled by state file 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.9021] manager: rfkill: WWAN enabled by ra
dio killswitch; disabled by state file 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.9022] manager: Networking is enabled by s
tate file 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.9023] settings: Loaded settings plugin: k
eyfile (internal) 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.9067] dhcp: init: Using DHCP client 'inte
rnal' 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.9068] manager: (lo): new Loopback device 
(/org/freedesktop/NetworkManager/Devices/1) 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.9075] device (lo): state change: unmanage
d -> unavailable (reason 'connection-assumed', managed-type: 'external') 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.9077] device (lo): state change: unavaila
ble -> disconnected (reason 'connection-assumed', managed-type: 'external') 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.9080] device (lo): Activation: starting c
onnection 'lo' (9a8e4199-c826-477e-8080-b50424dfea5d) 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.9083] device (enp39s0): carrier: link con
nected 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.9087] manager: (enp39s0): new Ethernet de
vice (/org/freedesktop/NetworkManager/Devices/2) 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.9091] device (enp39s0): state change: unm
anaged -> unavailable (reason 'connection-assumed', managed-type: 'external') 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.9095] device (enp39s0): state change: una
vailable -> disconnected (reason 'connection-assumed', managed-type: 'external') 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.9100] device (enp39s0): Activation: start
ing connection 'enp39s0' (5de994dc-5ed3-4db9-af27-d75e190043a1) 
Jan 21 11:47:59 production NetworkManager[5256]: <info>  [1768956479.9102] device (wlp41s0): driver supports A
ccess Point (AP) mode 
Jan 21 11:48:00 production systemd-coredump[5281]: [🡕] Process 5256 (NetworkManager) of user 0 dumped core. 
                                                   
                                                  Stack trace of thread 5271: 
                                                  #0  0x00007f6e6b148e02 __nss_module_get_function (libc.so.6
+ 0x148e02) 
                                                  #1  0x00007f6e6b150aeb getaddrinfo (libc.so.6 + 0x150aeb) 
                                                  #2  0x00007f6e6ba61b60 n/a (libgio-2.0.so.0 + 0xc6b60) 
                                                  #3  0x00007f6e6b872b4a n/a (libglib-2.0.so.0 + 0x94b4a) 
                                                  #4  0x00007f6e6b8723ad n/a (libglib-2.0.so.0 + 0x943ad) 
                                                  #5  0x00007f6e6b09bdf1 start_thread (libc.so.6 + 0x9bdf1) 
                                                  #6  0x00007f6e6b120c8c __clone3 (libc.so.6 + 0x120c8c) 
                                                   
                                                  Stack trace of thread 5256: 
                                                  #0  0x00007f6e6b88878e n/a (libglib-2.0.so.0 + 0xaa78e) 
                                                  #1  0x00007f6e6b88f0a4 n/a (libglib-2.0.so.0 + 0xb10a4) 
                                                  #2  0x00007f6e6b88f5e9 g_variant_new_va (libglib-2.0.so.0 +
0xb15e9) 
                                                  #3  0x00007f6e6b88fb3d g_variant_builder_add (libglib-2.0.s
o.0 + 0xb1b3d) 
                                                  #4  0x0000561c82472b49 n/a (/usr/sbin/NetworkManager + 0x66
b49) 
                                                  #5  0x0000561c8247bcf1 n/a (/usr/sbin/NetworkManager + 0x6f
cf1) 
                                                  #6  0x0000561c82593235 nm_dbus_object_export (/usr/sbin/Net
workManager + 0x187235) 
                                                  #7  0x0000561c8248a0af n/a (/usr/sbin/NetworkManager + 0x7e
0af) 
                                                  #8  0x0000561c8248f75d n/a (/usr/sbin/NetworkManager + 0x83
75d) 
                                                  #9  0x0000561c8249851b n/a (/usr/sbin/NetworkManager + 0x8c
51b) 
                                                  #10 0x0000561c8244ebc2 n/a (/usr/sbin/NetworkManager + 0x42
bc2) 
                                                  #11 0x00007f6e6b02b2fb __libc_start_call_main (libc.so.6 + 
0x2b2fb) 
                                                  #12 0x00007f6e6b02b3cb __libc_start_main@@GLIBC_2.34 (libc.
so.6 + 0x2b3cb) 
                                                  #13 0x0000561c824500e5 n/a (/usr/sbin/NetworkManager + 0x44
0e5) 
                                                   
                                                  Stack trace of thread 5274: 
                                                  #0  0x00007f6e6b0ac6d0 _int_malloc (libc.so.6 + 0xac6d0) 
                                                  #1  0x00007f6e6b0ac892 __libc_malloc2 (libc.so.6 + 0xac892) 
                                                  #2  0x00007f6e6b0aca4e tcache_init.part.0 (libc.so.6 + 0xac
a4e) 
                                                  #3  0x00007f6e6b0acb1c tcache_malloc_init (libc.so.6 + 0xac
b1c) 
                                                  #4  0x00007f6e6b143f2a __resolv_context_get (libc.so.6 + 0x
143f2a) 
                                                  #5  0x00007f6e6b1505ea getaddrinfo (libc.so.6 + 0x1505ea) 
                                                  #6  0x00007f6e6ba61b60 n/a (libgio-2.0.so.0 + 0xc6b60) 
                                                  #7  0x00007f6e6b872b4a n/a (libglib-2.0.so.0 + 0x94b4a) 
                                                  #8  0x00007f6e6b8723ad n/a (libglib-2.0.so.0 + 0x943ad) 
                                                  #9  0x00007f6e6b09bdf1 start_thread (libc.so.6 + 0x9bdf1) 
                                                  #10 0x00007f6e6b120c8c __clone3 (libc.so.6 + 0x120c8c) 
                                                   
                                                  Stack trace of thread 5260: 
                                                  #0  0x00007f6e6b0a4812 __syscall_cancel_arch (libc.so.6 + 0
xa4812) 
                                                  #1  0x00007f6e6b098008 __internal_syscall_cancel (libc.so.6
+ 0x98008) 
                                                  #2  0x00007f6e6b098061 __syscall_cancel (libc.so.6 + 0x9806
1) 
                                                  #3  0x00007f6e6b112f32 ppoll (libc.so.6 + 0x112f32) 
                                                  #4  0x00007f6e6b840b1f n/a (libglib-2.0.so.0 + 0x62b1f) 
                                                  #5  0x00007f6e6b84126c g_main_context_iteration (libglib-2.
0.so.0 + 0x6326c) 
                                                  #6  0x00007f6e6b8412b1 n/a (libglib-2.0.so.0 + 0x632b1) 
                                                  #7  0x00007f6e6b8723ad n/a (libglib-2.0.so.0 + 0x943ad) 
                                                  #8  0x00007f6e6b09bdf1 start_thread (libc.so.6 + 0x9bdf1) 
                                                  #9  0x00007f6e6b120c8c __clone3 (libc.so.6 + 0x120c8c) 
                                                   
                                                  Stack trace of thread 5262: 
                                                  #0  0x00007f6e6b0a4812 __syscall_cancel_arch (libc.so.6 + 0
xa4812) 
                                                  #1  0x00007f6e6b098008 __internal_syscall_cancel (libc.so.6
+ 0x98008) 
                                                  #2  0x00007f6e6b098061 __syscall_cancel (libc.so.6 + 0x9806
1) 
                                                  #3  0x00007f6e6b112f32 ppoll (libc.so.6 + 0x112f32) 
                                                  #4  0x00007f6e6b840b1f n/a (libglib-2.0.so.0 + 0x62b1f) 
                                                  #5  0x00007f6e6b841487 g_main_loop_run (libglib-2.0.so.0 + 
0x63487) 
                                                  #6  0x00007f6e6bacaef6 n/a (libgio-2.0.so.0 + 0x12fef6) 
                                                  #7  0x00007f6e6b8723ad n/a (libglib-2.0.so.0 + 0x943ad) 
                                                  #8  0x00007f6e6b09bdf1 start_thread (libc.so.6 + 0x9bdf1) 
                                                  #9  0x00007f6e6b120c8c __clone3 (libc.so.6 + 0x120c8c) 
                                                   
                                                  Stack trace of thread 5261: 
                                                  #0  0x00007f6e6b11e80d syscall (libc.so.6 + 0x11e80d) 
                                                  #1  0x00007f6e6b871c5e g_cond_wait (libglib-2.0.so.0 + 0x93
c5e) 
                                                  #2  0x00007f6e6b8075b4 n/a (libglib-2.0.so.0 + 0x295b4) 
                                                  #3  0x00007f6e6b872664 n/a (libglib-2.0.so.0 + 0x94664) 
                                                  #4  0x00007f6e6b8723ad n/a (libglib-2.0.so.0 + 0x943ad) 
                                                  #5  0x00007f6e6b09bdf1 start_thread (libc.so.6 + 0x9bdf1) 
                                                  #6  0x00007f6e6b120c8c __clone3 (libc.so.6 + 0x120c8c) 
                                                   
                                                  Stack trace of thread 5263: 
                                                  #0  0x00007f6e6b11e80d syscall (libc.so.6 + 0x11e80d) 
                                                  #1  0x00007f6e6b872108 g_cond_wait_until (libglib-2.0.so.0 
+ 0x94108) 
                                                  #2  0x00007f6e6b80757d n/a (libglib-2.0.so.0 + 0x2957d) 
                                                  #3  0x00007f6e6b872ba2 n/a (libglib-2.0.so.0 + 0x94ba2) 
                                                  #4  0x00007f6e6b8723ad n/a (libglib-2.0.so.0 + 0x943ad) 
                                                  #5  0x00007f6e6b09bdf1 start_thread (libc.so.6 + 0x9bdf1) 
                                                  #6  0x00007f6e6b120c8c __clone3 (libc.so.6 + 0x120c8c) 
                                                   
                                                  Stack trace of thread 5272: 
                                                  #0  0x00007f6e6b0989fb __lll_lock_wait_private (libc.so.6 +
0x989fb) 
                                                  #1  0x00007f6e6b136032 __check_pf (libc.so.6 + 0x136032) 
                                                  #2  0x00007f6e6b14f66d getaddrinfo (libc.so.6 + 0x14f66d) 
                                                  #3  0x00007f6e6ba61b60 n/a (libgio-2.0.so.0 + 0xc6b60) 
                                                  #4  0x00007f6e6b872b4a n/a (libglib-2.0.so.0 + 0x94b4a) 
                                                  #5  0x00007f6e6b8723ad n/a (libglib-2.0.so.0 + 0x943ad) 
                                                  #6  0x00007f6e6b09bdf1 start_thread (libc.so.6 + 0x9bdf1) 
                                                  #7  0x00007f6e6b120c8c __clone3 (libc.so.6 + 0x120c8c) 
                                                   
                                                  Stack trace of thread 5273: 
                                                  #0  0x00007f6e6b12316b __socket (libc.so.6 + 0x12316b) 
                                                  #1  0x00007f6e6b135ba7 __check_pf (libc.so.6 + 0x135ba7) 
                                                  #2  0x00007f6e6b14f66d getaddrinfo (libc.so.6 + 0x14f66d) 
                                                  #3  0x00007f6e6ba61b60 n/a (libgio-2.0.so.0 + 0xc6b60) 
                                                  #4  0x00007f6e6b872b4a n/a (libglib-2.0.so.0 + 0x94b4a) 
                                                  #5  0x00007f6e6b8723ad n/a (libglib-2.0.so.0 + 0x943ad) 
                                                  #6  0x00007f6e6b09bdf1 start_thread (libc.so.6 + 0x9bdf1) 
                                                  #7  0x00007f6e6b120c8c __clone3 (libc.so.6 + 0x120c8c) 
                                                  ELF object binary architecture: AMD x86-64 
Jan 21 11:48:00 production systemd[1]: NetworkManager.service: Main process exited, code=dumped, status=11/SEG
V 
Jan 21 11:48:00 production systemd[1]: NetworkManager.service: Failed with result 'core-dump'. 
Jan 21 11:48:00 production systemd[1]: Failed to start Network Manager. 
Jan 21 11:48:00 production systemd[1]: NetworkManager.service: Scheduled restart job, restart counter is at 5. 
Jan 21 11:48:00 production systemd[1]: NetworkManager.service: Start request repeated too quickly. 
Jan 21 11:48:00 production systemd[1]: NetworkManager.service: Failed with result 'core-dump'. 
Jan 21 11:48:00 production systemd[1]: Failed to start Network Manager. 
production:/ # 

The above is the most recent (bottom part ) of the output. The above mentioned the file NetworkManager.service =>

[Unit]
Description=Network Manager
Documentation=man:NetworkManager(8)
Wants=remote-fs.target network.target
After=network-pre.target dbus.service
Before=network.target 
BindsTo=dbus.service

[Service]
Type=dbus
BusName=org.freedesktop.NetworkManager
ExecReload=/usr/bin/busctl call org.freedesktop.NetworkManager /org/freedesktop/NetworkManager org.freedesktop.NetworkManager Reload u 0
#ExecReload=/bin/kill -HUP $MAINPID
ExecStart=/usr/sbin/NetworkManager --no-daemon
Restart=on-failure
# NM doesn't want systemd to kill its children for it
KillMode=process

# With a huge number of interfaces, starting can take a long time.
TimeoutStartSec=600

# CAP_DAC_OVERRIDE: required to open /run/openvswitch/db.sock socket.
CapabilityBoundingSet=CAP_NET_ADMIN CAP_DAC_OVERRIDE CAP_NET_RAW CAP_NET_BIND_SERVICE CAP_SETGID CAP_SETUID CAP_SYS_MODULE CAP_AUDIT_WRITE CAP_KILL CAP_SYS_CHROOT CAP_SYS_ADMIN

ProtectSystem=true
ProtectHome=read-only

# We require file descriptors for DHCP etc. When activating many interfaces,
# the default limit of 1024 is easily reached.
LimitNOFILE=65536

[Install]
WantedBy=multi-user.target
Alias=network.service
Also=NetworkManager-dispatcher.service

# We want to enable NetworkManager-wait-online.service whenever this service
# is enabled. NetworkManager-wait-online.service has
# WantedBy=network-online.target, so enabling it only has an effect if
# network-online.target itself is enabled or pulled in by some other unit.
Also=NetworkManager-wait-online.service

@ozotto Wicked is deprecated, NetworkManager is the default. So if you switch to a tty (ctrl+alt+F1), log in as root user and switch to run level 3, systemctl isolate multi-user.target then try systemctl restart NetworkManager does it still core dump?

@malcolmlewis

Hi … that provided the same dump

                                          Stack trace of thread 1728: 
                                                  #0  0x00007f942c2a4812 __syscall_cancel_arch (libc.so.6 + 0xa4812) 
                                                  #1  0x00007f942c298008 __internal_syscall_cancel (libc.so.6 + 0x98008) 
                                                  #2  0x00007f942c298061 __syscall_cancel (libc.so.6 + 0x98061) 
                                                  #3  0x00007f942c312f32 ppoll (libc.so.6 + 0x112f32) 
                                                  #4  0x00007f942ca3eb1f n/a (libglib-2.0.so.0 + 0x62b1f) 
                                                  #5  0x00007f942ca3f26c g_main_context_iteration (libglib-2.0.so.0 + 0x6326c) 
                                                  #6  0x00007f942ca3f2b1 n/a (libglib-2.0.so.0 + 0x632b1) 
                                                  #7  0x00007f942ca703ad n/a (libglib-2.0.so.0 + 0x943ad) 
                                                  #8  0x00007f942c29bdf1 start_thread (libc.so.6 + 0x9bdf1) 
                                                  #9  0x00007f942c320c8c __clone3 (libc.so.6 + 0x120c8c) 
                                                   
                                                  Stack trace of thread 1730: 
                                                  #0  0x00007f942c2a4812 __syscall_cancel_arch (libc.so.6 + 0xa4812) 
                                                  #1  0x00007f942c298008 __internal_syscall_cancel (libc.so.6 + 0x98008) 
                                                  #2  0x00007f942c298061 __syscall_cancel (libc.so.6 + 0x98061) 
                                                  #3  0x00007f942c312f32 ppoll (libc.so.6 + 0x112f32) 
                                                  #4  0x00007f942ca3eb1f n/a (libglib-2.0.so.0 + 0x62b1f) 
                                                  #5  0x00007f942ca3f487 g_main_loop_run (libglib-2.0.so.0 + 0x63487) 
                                                  #6  0x00007f942ccc8ef6 n/a (libgio-2.0.so.0 + 0x12fef6) 
                                                  #7  0x00007f942ca703ad n/a (libglib-2.0.so.0 + 0x943ad) 
                                                  #8  0x00007f942c29bdf1 start_thread (libc.so.6 + 0x9bdf1) 
                                                  #9  0x00007f942c320c8c __clone3 (libc.so.6 + 0x120c8c) 
                                                  ELF object binary architecture: AMD x86-64 
Jan 21 15:32:49 production systemd[1]: NetworkManager.service: Main process exited, code=dumped, status=11/SEGV 
Jan 21 15:32:49 production systemd[1]: NetworkManager.service: Failed with result 'core-dump'. 
Jan 21 15:32:49 production systemd[1]: Failed to start Network Manager. 
Jan 21 15:32:49 production systemd[1]: NetworkManager.service: Scheduled restart job, restart counter is at 5. 
Jan 21 15:32:49 production systemd[1]: NetworkManager.service: Start request repeated too quickly. 
Jan 21 15:32:49 production systemd[1]: NetworkManager.service: Failed with result 'core-dump'. 
Jan 21 15:32:49 production systemd[1]: Failed to start Network Manager. 
production:/ # 
production:/ # 

But I was trying to connect a Kyocera print via network (LAN).

I deleted the printer yast-config and re-installed, connecting via USB

Now the output of systemctl restart Network Manager looks like

production:/ # systemctl restart Network Manager 
Failed to restart Network.service: Unit Network.service not found. 
Failed to restart Manager.service: Unit Manager.service not found. 
production:/ # 

In /usr/lib/systemd/system I could not find
Network.service
Manager.service

It is NetworkManager not Network Manager

2 Likes

Hi all

Since it was a new install and having had already a number of mishaps/ change of variables with unknown consequences and decided for a fresh install.

Thanks for all your help