[Bug 1577132] NetDevice.wlan0.txt

Michał Sawicz michal.sawicz at canonical.com
Sun May 1 11:16:33 UTC 2016


apport information

** Attachment added: "NetDevice.wlan0.txt"
   https://bugs.launchpad.net/bugs/1577132/+attachment/4652645/+files/NetDevice.wlan0.txt

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https://bugs.launchpad.net/bugs/1577132

Title:
  network manager update causes dbus spam with NameOwnerChanged

Status in Canonical System Image:
  Triaged
Status in dbus package in Ubuntu:
  New
Status in network-manager package in Ubuntu:
  New

Bug description:
  After upgrading network-manager to 1.1.93-0ubuntu1~vivid1, dbus-
  monitor shows spam with NameOwnerChanged signals - there's no crash
  files or anything, but the top of top looks like so:

    PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND
   2921 phablet   20   0 1164048 277924   7444 S  34,9 28,3   4:18.54 ubuntu-push-cli
    847 message+  20   0    6412   2444    832 R  32,9  0,2   3:43.92 dbus-daemon
   2255 phablet   20   0    7080   2172   1156 R  22,2  0,2   2:40.95 upstart
   2592 phablet   20   0   33704   4848   4140 R  17,6  0,5   1:52.28 mission-control

  dbus-monitor shows hundreds of events like so:

  signal time=1462098650.817539 sender=:1.0 -> destination=(null destination) serial=11224 path=/com/ubuntu/Upstart; interface=com.ubuntu.Upstart0_6; member=EventEmitted
     string "dbus"
     array [
        string "SIGNAL=NameOwnerChanged"
        string "BUS=session"
        string "INTERFACE=org.freedesktop.DBus"
        string "OBJPATH=/org/freedesktop/DBus"
        string "SENDER=org.freedesktop.DBus"
        string "ARG0=:1.167"
        string "ARG1="
        string "ARG2=:1.167"
     ]

  3s of dbus-monitor:

  $ time dbus-monitor > dbus.log
  ^C
  real    0m2.719s

  Shows 226 signals - so it's just under 100 signals a second:

  $ grep -c NameOwnerChanged dbus.log
  226

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: dbus 1.8.12-1ubuntu5
  Uname: Linux 3.4.67 armv7l
  ApportVersion: 2.17.2-0ubuntu1.3touch1
  Architecture: armhf
  Date: Sun May  1 12:22:38 2016
  InstallationDate: Installed on 2016-04-29 (2 days ago)
  InstallationMedia: Ubuntu 15.04 - armhf (20160429-020305)
  SourcePackage: dbus
  UpgradeStatus: No upgrade log present (probably fresh install)
  --- 
  ApportVersion: 2.17.2-0ubuntu1.3touch1
  Architecture: armhf
  DistroRelease: Ubuntu 15.04
  IfupdownConfig:
   # interfaces(5) file used by ifup(8) and ifdown(8)
   # Include files from /etc/network/interfaces.d:
   source-directory /etc/network/interfaces.d
  InstallationDate: Installed on 2016-04-29 (2 days ago)
  InstallationMedia: Ubuntu 15.04 - armhf (20160429-020305)
  IpRoute:
   default via 10.2.0.254 dev wlan0  proto static  metric 600 
   10.0.0.0/13 via 10.2.0.1 dev wlan0  proto dhcp  metric 600 
   10.2.0.0/24 dev wlan0  proto kernel  scope link  src 10.2.0.65  metric 600
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=true
   WimaxEnabled=true
  Package: network-manager 1.1.93-0ubuntu1~vivid1 [origin: LP-PPA-ci-train-ppa-service-stable-phone-overlay]
  PackageArchitecture: armhf
  PciNetwork:
   
  Tags: third-party-packages vivid
  Uname: Linux 3.4.67 armv7l
  UnreportableReason: To nie jest oficjalny pakiet Ubuntu. Proszę usunąć wszystkie pakiety pochodzące z innych źródeł niż oficjalne i spróbować ponownie.
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dialout dip plugdev sudo tty video
  _MarkForUpload: True
  modified.conffile..etc.polkit.1.localauthority.50.local.d.org.freedesktop.NetworkManager.pkla: [deleted]
  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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