Public bug reported: After upgrading to latest overlay (unfortunately there's about 150 packages to upgrade between the last image and overlay) dbus-monitor shows dbus/upstart spamming system dbus 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) ** Affects: canonical-devices-system-image Importance: Undecided Status: New ** Affects: dbus (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug armhf third-party-packages vivid ** Also affects: canonical-devices-system-image Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1577132 Title: dbus/upstart spam dbus with NameOwnerChanged To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1577132/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs