Hi all,
a few days ago I installed the latest Antergos on my Lenovo Thinkpad T450s. So far, i was able to set up everything necessary for my produktive work.
I observed a strange behavior/crash when trying to use my WWAN connection. When the WWAN connects to a mobile network, my NetworkManager crashes, and the KDE Network-Applet disappears. The strange thing is, that afterwards i still have a internet connection. I can stop the ModemManager and restart the NetworkManager. But as soon as I start the ModemManager again, the NetworkManager crashed again.
Here are Some logs of the Network- and ModemManager:
NetworkManager:
sudo systemctl status NetworkManager
● NetworkManager.service - Network Manager
Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; enabled; vendor preset: disabled)
Active: failed (Result: core-dump) since Thu 2017-03-16 10:12:50 CET; 15s ago
Docs: man:NetworkManager(8)
Process: 1349 ExecStart=/usr/bin/NetworkManager --no-daemon (code=dumped, signal=ABRT)
Main PID: 1349 (code=dumped, signal=ABRT)
Mär 16 10:12:50 Razer-X systemd[1]: NetworkManager.service: Service hold-off time over, scheduling restart.
Mär 16 10:12:50 Razer-X systemd[1]: Stopped Network Manager.
Mär 16 10:12:50 Razer-X systemd[1]: NetworkManager.service: Start request repeated too quickly.
Mär 16 10:12:50 Razer-X systemd[1]: Failed to start Network Manager.
Mär 16 10:12:50 Razer-X systemd[1]: NetworkManager.service: Unit entered failed state.
Mär 16 10:12:50 Razer-X systemd[1]: NetworkManager.service: Failed with result 'core-dump'.
ModemManager:
● ModemManager.service - Modem Manager
Loaded: loaded (/usr/lib/systemd/system/ModemManager.service; enabled; vendor preset: disabled)
Active: active (running) since Thu 2017-03-16 10:12:08 CET; 3min 29s ago
Main PID: 495 (ModemManager)
Tasks: 5 (limit: 4915)
CGroup: /system.slice/ModemManager.service
├─495 /usr/bin/ModemManager
└─549 /usr/lib/libmbim/mbim-proxy
Mär 16 10:12:50 Razer-X ModemManager[495]: <info> Simple connect state (4/8): Wait to get fully enabled
Mär 16 10:12:50 Razer-X ModemManager[495]: <info> Simple connect state (5/8): Register
Mär 16 10:12:50 Razer-X ModemManager[495]: <info> Simple connect state (6/8): Bearer
Mär 16 10:12:50 Razer-X ModemManager[495]: <info> Simple connect state (7/8): Connect
Mär 16 10:12:50 Razer-X ModemManager[495]: <info> Simple connect state (8/8): All done
Mär 16 10:13:12 Razer-X ModemManager[495]: <warn> Reloading stats failed: OperationNotAllowed
Mär 16 10:13:42 Razer-X ModemManager[495]: <warn> Reloading stats failed: OperationNotAllowed
Mär 16 10:14:12 Razer-X ModemManager[495]: <warn> Reloading stats failed: OperationNotAllowed
Mär 16 10:14:42 Razer-X ModemManager[495]: <warn> Reloading stats failed: OperationNotAllowed
Mär 16 10:15:12 Razer-X ModemManager[495]: <warn> Reloading stats failed: OperationNotAllowed
ifconfig wwp0s20u4:
wwp0s20u4: flags=4291<UP,BROADCAST,RUNNING,NOARP,MULTICAST> mtu 1428
inet 10.33.70.250 netmask 255.255.255.0 broadcast 10.33.70.255
inet6 fe80::9b6d:c235:f1fa:7bc1 prefixlen 64 scopeid 0x20<link>
inet6 ::45fe:fe7b:f777:34d3 prefixlen 64 scopeid 0x0<global>
ether e6:7c:ad:49:67:05 txqueuelen 1000 (Ethernet)
RX packets 3959 bytes 3814687 (3.6 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 4558 bytes 342865 (334.8 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
uname -r
4.10.1-1-ARCH
lsusb | grep Sierra
Bus 001 Device 010: ID 1199:a001 Sierra Wireless, Inc.
It seems to me, that this is an issue, with the modem module Sierra Wireless EM7345 itself. I googled for this issue, but wasn’t able to find a fix. I tried also the lts kernel, but with no success.
Does anyone have an idea, what i could try?
Thanks and Regards,
mf
