Public bug reported:
Every now and then networks stops working and I have to do
sudo service network-manager restart
for it to work again. In rare cases only a reboot helps.
The attached apport information my not contain any helpful data, as I couldn't
have sent them while the error occured.
I made a cat on syslog with grep on error. This is what came along
around the time of crashing:
May 18 10:25:29 jwe kernel: [56474.611316] traps: nm-applet[8390] trap
int3 ip:7fcec010a9eb sp:7ffc12d93f80 error:0
May 18 10:29:10 jwe kernel: [56695.665524] audit: type=1400
audit(1463560150.577:25): apparmor="DENIED" operation="connect"
info="Failed name lookup - disconnected path" error=-13
profile="/usr/lib/NetworkManager/nm-dhcp-helper"
name="run/NetworkManager/private-dhcp" pid=23543 comm="nm-dhcp-helper"
requested_mask="wr" denied_mask="wr" fsuid=0 ouid=0
I don't copy the whole file here, because it is full of docker logging,
saying, that no external connection was possible...
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: network-manager 1.1.93-0ubuntu4
ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8
Uname: Linux 4.4.0-22-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
Date: Wed May 18 10:52:19 2016
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
InstallationDate: Installed on 2016-04-25 (22 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
IpRoute:
default via 10.43.0.1 dev enp0s25 proto static metric 100
10.43.0.0/16 dev enp0s25 proto kernel scope link src 10.43.1.107 metric
100
169.254.0.0/16 dev br-886d4b6cc135 scope link metric 1000
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown
172.18.0.0/16 dev br-886d4b6cc135 proto kernel scope link src 172.18.0.1
NetworkManager.state:
[main]
NetworkingEnabled=true
WirelessEnabled=false
WWANEnabled=true
ProcEnviron:
LANGUAGE=de_DE
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=de_DE.UTF-8
SHELL=/bin/bash
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2:
Error: Object 'nm' is unknown, try 'nmcli help'.
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1583061
Title:
network-manager crashes once in a while
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