[Bug 772183] [NEW] kded4 using 100% CPU - in a Unity session

[Sean Fitzpatrick]

Public bug reported:

I have both the Ubuntu and Kubuntu desktops installed, running 11.04 beta 2 (I like to try both during testing).  I logged into a KDE session unintentionally (it had been the last login), logged out, and logged back into a Unity session.  I didn't notice the CPU usage for awhile (in Unity there's no way to put a CPU monitor on the panel to warn me!) but when I went to shut down, the system complained of an unresponsive program.  I checked the System Monitor and found I was at 100% CPU on one of my two cores.  (My memory and swap were also a lot higher than they used to be, but that could just be 11.04.)
I identified kded4 as the runaway process (it took a kill -9 to kill it); not really sure why it was running in a unity session in the first place.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: kdelibs-bin 4:4.6.2-0ubuntu4
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: fglrx
Architecture: amd64
Date: Wed Apr 27 23:43:55 2011
ExecutablePath: /usr/bin/kdeinit4
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: kde4libs
UpgradeStatus: Upgraded to natty on 2011-04-10 (17 days ago)

** Affects: kde4libs (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug natty running-unity

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https://bugs.launchpad.net/bugs/772183

Title:
  kded4 using 100% CPU - in a Unity session