半年前就开始了，nm 会一直无限断线重联，最后导致 tray 图标丢失。这个 bug 最近 tw 更新才修复:
- Update to version 1.14.2:
- Fix a bug that could cause NetworkManager to crash after
checking connectivity status.- Correctly apply a default (-1) metric from DHCP.
但是还有个问题导致无法上网，要 netconfig update -f 或者删除 /etc/resolv.conf 才行，而且关机时候会被卡住。。。
11月 18 23:49:35 suse nscd[1001]: 1001 监视的文件 '/etc/resolv.conf' 被写入
11月 18 23:49:35 suse NetworkManager[1256]: nisdomainname: you must be root to change the domain name
11月 18 23:49:35 suse NetworkManager[1256]: <info> [1542556175.6119] manager: NetworkManager state is now DISCONNECTED
11月 18 23:49:35 suse dbus-daemon[980]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.6' (uid=0 pid=1256 comm="/usr/sbin/NetworkManager --no-daemon ")
11月 18 23:49:35 suse dbus-daemon[980]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.nm-dispatcher.service': Refusing activation, D-Bus is shutting down.
11月 18 23:49:35 suse NetworkManager[1256]: <warn> [1542556175.6149] sup-iface[0x55c019a0a0d0,wlp3s0]: connection disconnected (reason -3)
11月 18 23:49:35 suse NetworkManager[1256]: <info> [1542556175.6151] device (wlp3s0): supplicant interface state: completed -> disconnected
11月 18 23:49:39 suse sddm[1466]: Removing display ":0" ...
每次都要手动关机，真烦人，目前只能用 wicked 先代替。
leap 就没有这个问题，网络一直很稳，关机重启从不会卡住。