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[Bug 1517855] [NEW] NetworkManager dnsmasq failing on start

 

Public bug reported:

I do not have a wealth of knowledge when it comes to networking and the inner working of network manager, but upon starting my computer I noticed that NetworkManager was failing to start correctly.
I checked my syslog in hope of finding a reason for this problem and here are the lines that seems to be the cause:
---------------------------------------------------------------------------------------------------------
Nov 19 10:39:04  NetworkManager[12596]: <warn>  dnsmasq exited with error: Filesystem problem (missing file/directory; permissions; etc) (3)
Nov 19 10:39:04  NetworkManager[12596]: <info>  Writing DNS information to /sbin/resolvconf
Nov 19 10:39:04  NetworkManager[12596]: <warn>  DNS: plugin dnsmasq child quit unexpectedly; refreshing DNS
Nov 19 10:39:04  NetworkManager[12596]: <info>  DNS: starting dnsmasq...
Nov 19 10:39:04  NetworkManager[12596]: <warn>  dnsmasq not available on the bus, can't update servers.
Nov 19 10:39:04  NetworkManager[12596]: <error> [1447929544.956041] [dns-manager/nm-dns-dnsmasq.c:387] update(): dnsmasq owner not found on bus: Could not get owner of name 'org.freedesktop.NetworkManager.dnsmasq': no such name
Nov 19 10:39:04  NetworkManager[12596]: <warn>  DNS: plugin dnsmasq update failed
Nov 19 10:39:04  NetworkManager[12596]: <info>  Writing DNS information to /sbin/resolvconf
Nov 19 10:39:04  NetworkManager[12596]: dnsmasq: failed to open pidfile /run/sendsigs.omit.d/network-manager.dnsmasq.pid: No such file or directory
Nov 19 10:39:04  dnsmasq[14381]: failed to open pidfile /run/sendsigs.omit.d/network-manager.dnsmasq.pid: No such file or directory
Nov 19 10:39:04 Misa dnsmasq[14381]: FAILED to start up
---------------------------------------------------------------------------------------------------------

As you will notice in the configuration file of NetworkManager, I worked
around this problem by commenting the use of dnsmasq as a dns plugin.
However, that is not a long term solution and if more users have the
same problem it might help to have a real solution.

I am currently running the desktop version of Ubuntu 15.10-64bits with
network-manager 1.0.4-0ubuntu5.1 installed.

Thank you in advance for your help.
Sincerely.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: network-manager 1.0.4-0ubuntu5.1
ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6
Uname: Linux 4.2.0-19-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
Date: Thu Nov 19 11:24:45 2015
ExecutablePath: /usr/sbin/NetworkManager
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2015-07-13 (128 days ago)
InstallationMedia: Lubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
IpRoute:
 default via 10.78.192.1 dev eth0  proto static  metric 100 
 10.78.192.0/20 dev eth0  proto kernel  scope link  src 10.78.206.15  metric 100
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=false
 WWANEnabled=true
 WimaxEnabled=true
ProcEnviron:
 LANG=en_GB.UTF-8
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
SourcePackage: network-manager
UpgradeStatus: Upgraded to wily on 2015-11-12 (6 days ago)
mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2015-11-19T11:22:54.882153
nmcli-dev:
 DEVICE  TYPE      STATE        DBUS-PATH                                  CONNECTION  CON-UUID                              CON-PATH                                           
 eth0    ethernet  connected    /org/freedesktop/NetworkManager/Devices/0  LifeSource  23d38626-0b26-4ffb-b610-da784136236f  /org/freedesktop/NetworkManager/ActiveConnection/0 
 wlan0   wifi      unavailable  /org/freedesktop/NetworkManager/Devices/2  --          --                                    --                                                 
 lo      loopback  unmanaged    /org/freedesktop/NetworkManager/Devices/1  --          --                                    --
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 wily

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https://bugs.launchpad.net/bugs/1517855

Title:
  NetworkManager dnsmasq failing on start

Status in network-manager package in Ubuntu:
  New

Bug description:
  I do not have a wealth of knowledge when it comes to networking and the inner working of network manager, but upon starting my computer I noticed that NetworkManager was failing to start correctly.
  I checked my syslog in hope of finding a reason for this problem and here are the lines that seems to be the cause:
  ---------------------------------------------------------------------------------------------------------
  Nov 19 10:39:04  NetworkManager[12596]: <warn>  dnsmasq exited with error: Filesystem problem (missing file/directory; permissions; etc) (3)
  Nov 19 10:39:04  NetworkManager[12596]: <info>  Writing DNS information to /sbin/resolvconf
  Nov 19 10:39:04  NetworkManager[12596]: <warn>  DNS: plugin dnsmasq child quit unexpectedly; refreshing DNS
  Nov 19 10:39:04  NetworkManager[12596]: <info>  DNS: starting dnsmasq...
  Nov 19 10:39:04  NetworkManager[12596]: <warn>  dnsmasq not available on the bus, can't update servers.
  Nov 19 10:39:04  NetworkManager[12596]: <error> [1447929544.956041] [dns-manager/nm-dns-dnsmasq.c:387] update(): dnsmasq owner not found on bus: Could not get owner of name 'org.freedesktop.NetworkManager.dnsmasq': no such name
  Nov 19 10:39:04  NetworkManager[12596]: <warn>  DNS: plugin dnsmasq update failed
  Nov 19 10:39:04  NetworkManager[12596]: <info>  Writing DNS information to /sbin/resolvconf
  Nov 19 10:39:04  NetworkManager[12596]: dnsmasq: failed to open pidfile /run/sendsigs.omit.d/network-manager.dnsmasq.pid: No such file or directory
  Nov 19 10:39:04  dnsmasq[14381]: failed to open pidfile /run/sendsigs.omit.d/network-manager.dnsmasq.pid: No such file or directory
  Nov 19 10:39:04 Misa dnsmasq[14381]: FAILED to start up
  ---------------------------------------------------------------------------------------------------------

  As you will notice in the configuration file of NetworkManager, I
  worked around this problem by commenting the use of dnsmasq as a dns
  plugin. However, that is not a long term solution and if more users
  have the same problem it might help to have a real solution.

  I am currently running the desktop version of Ubuntu 15.10-64bits with
  network-manager 1.0.4-0ubuntu5.1 installed.

  Thank you in advance for your help.
  Sincerely.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: network-manager 1.0.4-0ubuntu5.1
  ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6
  Uname: Linux 4.2.0-19-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  Date: Thu Nov 19 11:24:45 2015
  ExecutablePath: /usr/sbin/NetworkManager
  IfupdownConfig:
   # interfaces(5) file used by ifup(8) and ifdown(8)
   auto lo
   iface lo inet loopback
  InstallationDate: Installed on 2015-07-13 (128 days ago)
  InstallationMedia: Lubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  IpRoute:
   default via 10.78.192.1 dev eth0  proto static  metric 100 
   10.78.192.0/20 dev eth0  proto kernel  scope link  src 10.78.206.15  metric 100
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=false
   WWANEnabled=true
   WimaxEnabled=true
  ProcEnviron:
   LANG=en_GB.UTF-8
   LANGUAGE=en_GB:en
   PATH=(custom, no user)
  SourcePackage: network-manager
  UpgradeStatus: Upgraded to wily on 2015-11-12 (6 days ago)
  mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2015-11-19T11:22:54.882153
  nmcli-dev:
   DEVICE  TYPE      STATE        DBUS-PATH                                  CONNECTION  CON-UUID                              CON-PATH                                           
   eth0    ethernet  connected    /org/freedesktop/NetworkManager/Devices/0  LifeSource  23d38626-0b26-4ffb-b610-da784136236f  /org/freedesktop/NetworkManager/ActiveConnection/0 
   wlan0   wifi      unavailable  /org/freedesktop/NetworkManager/Devices/2  --          --                                    --                                                 
   lo      loopback  unmanaged    /org/freedesktop/NetworkManager/Devices/1  --          --                                    --
  nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'.

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