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[Launchpad Bug Tracker <1497750@xxxxxxxxxxxxxxxxxx>]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: dbus (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1497750

Title:
  dbus-daemon uses huge amount of CPU

Status in dbus package in Ubuntu:
  Confirmed

Bug description:
  dbus-daemon is working all the time on ubuntu phone, using up to 100%
  CPU. It seems that some services are emitting messages continuously,
  particularly  Upstart and network indicator. The phone becomes
  unusable and must be restarted to work

  Disabling wifi reduces a lot the amount of messages

  Phone : BQ Aquaris E4.5 Ubuntu Edition
  DistroRelease: Ubuntu 15.04 (r25)
  Uname: Linux ubuntu-phablet 3.4.67

  extract from dbus--monitor --profile --session (lots of messages
  without actually using the phone)

  sig	1442761291	858477	83609	/com/ubuntu/Upstart	com.ubuntu.Upstart0_6	EventEmitted
  sig	1442761291	877536	83610	/com/ubuntu/Upstart	com.ubuntu.Upstart0_6	EventEmitted
  sig	1442761292	667180	83611	/com/ubuntu/Upstart	com.ubuntu.Upstart0_6	EventEmitted
  sig	1442761292	722328	1416	/com/canonical/indicator/power	org.gtk.Actions	Changed
  sig	1442761292	760751	83612	/com/ubuntu/Upstart	com.ubuntu.Upstart0_6	EventEmitted
  sig	1442761292	764403	83613	/com/ubuntu/Upstart	com.ubuntu.Upstart0_6	EventEmitted
  sig	1442761292	768329	83614	/com/ubuntu/Upstart	com.ubuntu.Upstart0_6	EventEmitted
  sig	1442761295	884397	6118	/com/canonical/indicator/network	org.gtk.Actions	Changed
  sig	1442761295	905577	83615	/com/ubuntu/Upstart	com.ubuntu.Upstart0_6	EventEmitted
  sig	1442761295	907594	83616	/com/ubuntu/Upstart	com.ubuntu.Upstart0_6	EventEmitted
  sig	1442761300	773941	1417	/com/canonical/indicator/power	org.gtk.Actions	Changed
  sig	1442761300	781362	83617	/com/ubuntu/Upstart	com.ubuntu.Upstart0_6	EventEmitted
  sig	1442761300	782578	83618	/com/ubuntu/Upstart	com.ubuntu.Upstart0_6	EventEmitted
  sig	1442761306	862983	83619	/com/ubuntu/Upstart	com.ubuntu.Upstart0_6	EventEmitted
  sig	1442761306	882480	83620	/com/ubuntu/Upstart	com.ubuntu.Upstart0_6	EventEmitted

  
  lots of messages are concerning access points
  Extract from dbus--monitor  --session

  signal sender=:1.58 -> dest=(null destination) serial=6139 path=/com/canonical/indicator/network; interface=org.gtk.Actions; member=Changed
     array [
     ]
     array [
     ]
     array [
        dict entry(
           string "accesspoint.1259::strength"
           variant             byte 59
        )
     ]
     array [
     ]
  signal sender=:1.0 -> dest=(null destination) serial=83772 path=/com/ubuntu/Upstart; interface=com.ubuntu.Upstart0_6; member=EventEmitted
     string "dbus"
     array [
        string "SIGNAL=Changed"
        string "BUS=session"
        string "INTERFACE=org.gtk.Actions"
        string "OBJPATH=/com/canonical/indicator/network"
        string "SENDER=:1.58"
     ]
  signal sender=:1.0 -> dest=(null destination) serial=83773 path=/com/ubuntu/Upstart; interface=com.ubuntu.Upstart0_6; member=EventEmitted
     string "dbus"
     array [
        string "SIGNAL=PropertiesChanged"
        string "BUS=system"
        string "INTERFACE=org.freedesktop.NetworkManager.AccessPoint"
        string "OBJPATH=/org/freedesktop/NetworkManager/AccessPoint/2913"
        string "SENDER=:1.7"
     ]

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: dbus 1.8.12-1ubuntu5
  Uname: Linux 3.4.67 armv7l
  ApportVersion: 2.17.2-0ubuntu1.3
  Architecture: armhf
  CurrentDesktop: Unity
  Date: Sun Sep 20 16:40:39 2015
  InstallationDate: Installed on 2015-08-25 (25 days ago)
  InstallationMedia: Ubuntu 15.04 - armhf (20150825-170536)
  SourcePackage: dbus
  UpgradeStatus: No upgrade log present (probably fresh install)

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