[Bug 713157] Re: dbus-daemon maxes cpu, programs won't start

John Charonko 713157 at bugs.launchpad.net
Tue Dec 20 14:53:34 UTC 2011


I just wanted to report that the update to Kubuntu 11.10 seems to have
fixed the problems I was having. I haven't seen this problem since
upgrading my installation.

 I'm guessing that the upstream fix to kdelibs resolved the bug causing
kpackagekitsmarticon to grab too many files.

I'm going to mark this as fixed, since the bug appears to be fixed in
11.10.  Unless someone has backported the kdelibs patch, it still exists
in previous releases, however.

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Title:
  dbus-daemon maxes cpu, programs won't start

Status in D-Bus:
  Fix Released
Status in “dbus” package in Ubuntu:
  Fix Released

Bug description:
  Binary package hint: kdebase

  I believe I have dbus 1.4.0-0ubuntu1.1 installed.

  This bug occurs whenever I leave my computer on for more than a few
  days.  There are three instances of dbus-daemon running on my
  computer, the system bus, owned by user 'messagebus', and two session
  buses, owned by users 'kdm' and my user account.  It's the instance
  started under my user account that is having the problems.

  The behavior I see is that dbus-daemon maxes out one of the 8
  "processors" in my machine (it's really only quad core), leading to a
  constant 12% load.  It doesn't sound like much, but with dbus-daemon
  freaking out, it prevents applications from starting normally.
  Sometimes nothing happens, but most of the time an icon for the
  program will appear in the task manager with a "busy" icon for a
  while, then disappear.  Running applications continue to work
  normally, with the exception of dolphin, which sometimes (but not
  always) will freeze in some of the open windows.  If I close open
  applications, the programs that I have tried to start but never
  appeared will appear one at a time in the order in which I tried to
  run them, one for every application closed.

  The only work-around is to log out of my session and then log back in.
  This is a total productivity hog since I have to open all my documents
  up again.

  While this is going on, the machine is practically unusable for any
  real work.  I never realized how often I open and close programs until
  I couldn't.

  I've looked at a lot of other dbus-daemon bugs on the internet, and
  I've tried a couple of the things they've suggested, but I haven't
  been able to isolate a process that's a fault (spamming the bus,
  etc.).  I've tried running dbus-monitor on the session bus a couple of
  times before and after the problem starts, but usually it's tough to
  do because I can't always get konsole started to run it in.  The times
  I have, I've seen a reasonably regular rate of traffic when everything
  is acting normally, and no traffic at all when the dbus-daemon is
  locking up the cpu.  I may be doing it wrong though - I'm no expert, I
  just tried some stuff I read on forums.

  Theoretically ubuntu-bug should have appended a bunch of my system
  info automatically.  If it doesn't show up, let me know what you need,
  and I'll add it to the bug.  I can also try to run any other commands
  you think might help debug this.

  Thanks.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.10
  Package: konqueror (not installed)
  ProcVersionSignature: Ubuntu 2.6.35-25.44-generic 2.6.35.10
  Uname: Linux 2.6.35-25-generic x86_64
  NonfreeKernelModules: nvidia
  Architecture: amd64
  Date: Fri Feb  4 09:38:52 2011
  InstallationMedia: Kubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  ProcEnviron:
   LANGUAGE=
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: kdebase

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