Dbus hangs using 99% cpu

[Andreas Noteng]

Binary package hint: dbus

Everything hangs, and in KDE I'm unable to start any new programs. Switching to a console I can see that dbus is using 99% CPU. In this case the problem occured while trying to view pictures from a removable CF card. According to my wife, this often happens while working with images and dolphin.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: dbus 1.4.0-0ubuntu1.1
ProcVersionSignature: Ubuntu 2.6.35-28.49-generic 2.6.35.11
Uname: Linux 2.6.35-28-generic i686
Architecture: i386
Date: Wed Apr 6 21:57:42 2011
InstallationMedia: Kubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
ProcEnviron:
 LANGUAGE=nb_NO:nb:no_NO:no:nn_NO:nn:en
 PATH=(custom, user)
 LANG=nb_NO.UTF-8
 SHELL=/bin/bash
SourcePackage: dbus

[Andreas Noteng (andreas-noteng)]

After ± 10min. the dbus-daemon stopped using all the CPU, and the computer came back to life.

[Andreas Noteng (andreas-noteng)]

Trying to start dolphin again brings the problem back. Looks like this bug perhaps should be filed against dolphin, and not dbus?

[Launchpad Janitor (janitor)]

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

[JerryH (jerry-metalcat)]

Affects me too, on Kubuntu 11, hangs the whole system regularly.

[JerryH (jerry-metalcat)]

If you have a terminal open when the symptoms arise and try to start another program, vlc for instance you get :

jeremy@quartz:~$ vlc
VLC media player 1.1.9 The Luggage (revision exported)
Blocked: call to unsetenv("DBUS_ACTIVATION_ADDRESS")
Blocked: call to unsetenv("DBUS_ACTIVATION_BUS_TYPE")