Comment # 2 on bug 1127794 from Moritz Duge

Created attachment 835321 [details]
syslog

Same on openSUSE-15.1.
But the bug only happens about every second time when disconnecting from VPN.

And it looks like Ubuntu might have the same problem.
https://bugs.launchpad.net/ubuntu/+source/network-manager-openvpn/+bug/1782943

I use NetworkManager via plasma-nm5-openvpn (KDE widget).

--

Here's the command-line of the openvpn process, started by NetworkManager.
(replaced some sensible strings)

/usr/sbin/openvpn --remote vpnhost.exmaple.org 1195 udp --nobind --dev tun
--cipher AES-256-CBC --auth SHA256 --auth-nocache --tls-auth
/home/user/.local/share/networkmanagement/certificates/pfSense-UDP4-myhost.vpnhost.exmaple.org-config/tls_auth.key
1 --verify-x509-name vpnhost.exmaple.org name --remote-cert-tls server
--reneg-sec 0 --verb 1 --syslog nm-openvpn --script-security 2 --up
/usr/lib/nm-openvpn-service-openvpn-helper --debug 0 912 --bus-name
org.freedesktop.NetworkManager.openvpn.Connection_138 --tun -- --up-restart
--persist-key --persist-tun --management
/var/run/NetworkManager/nm-openvpn-01234567-89ab-cdef-0123-4567890abcde unix
--management-client-user root --management-client-group root
--management-query-passwords --auth-retry interact --route-noexec
--ifconfig-noexec --client --ca
/home/user/.local/share/networkmanagement/certificates/pfSense-UDP4-myhost.vpnhost.exmaple.org-config/ca.crt
--cert
/home/user/.local/share/networkmanagement/certificates/pfSense-UDP4-myhost.vpnhost.exmaple.org-config/cert.crt
--key
/home/user/.local/share/networkmanagement/certificates/pfSense-UDP4-myhost.vpnhost.exmaple.org-config/private.key
--user nm-openvpn --group nm-openvpn

When clicking "disconnect" there's not much happening in the syslog
(journalctl). The only interesting differences between a successfull and an
unsuccessfull disconnect are:

(only when success)
Apr 09 12:30:07 myhost.example.org nm-openvpn[10008]: event_wait : Interrupted
system call (code=4)

(only when no success)
Apr 09 12:23:24 myhost.example.org NetworkManager[1909]: <info> 
[1586427804.9133] device (tun0): state change: activated -> unmanaged (reason
'connection-assumed', sys-iface-state: 'external')
(only when success)
Apr 09 12:30:07 myhost.example.org NetworkManager[1909]: <info> 
[1586428207.1003] device (tun0): state change: activated -> unmanaged (reason
'unmanaged', sys-iface-state: 'removed')

(only when success)
Apr 09 12:30:07 myhost.example.org nm-openvpn[10008]: SIGTERM[hard,] received,
process exiting