hanging in kdialog
Jos van den Oever
jos at vandenoever.info
Mon Jul 31 08:02:43 BST 2017
This issue is showing up for other users too:
https://bugs.kde.org/show_bug.cgi?id=381693
https://bbs.archlinux.org/viewtopic.php?id=227681
https://www.reddit.com/r/kde/comments/6nqlul/
konsole_hangs_when_nothing_is_listening_on/
https://forum.antergos.com/topic/7254/notification-daemon-not-running-time-out-causes-thunar-to-hang
Cheers,
Jos
Op maandag 31 juli 2017 08:55:11 CEST schreef Jos van den Oever:
> Op zondag 30 juli 2017 10:25:39 CEST schreef u:
> > There's a review requests from me on KNotification that fixes this.
>
> Which one is that? I know dvratil submitted one to fix a timeout issue that
> makes knotifications think it is connected to a notifications service when
> it is not.
>
> The issue I'm seeing is that when you run on a desktop with plasma
> installed, plasma will install a fake dbus service (plasma_waitforname) for
> org.freedesktop.Notifications.
>
> This 'service' assumes that plasma is starting up and does nothing but wait
> for plasma to become available. This assumption is wrong when the user has
> plasma installed but is currently running a different desktop for which
> there is no org.freedesktop.Notifications or for which
> org.freedesktop.Notifications has not started yet.
>
> A 'solution' is to deinstall plasma_waitforname, but that's not a nice for a
> user that likes to have multiple desktops installed. Another workaround is
> to hard delete plasma_waitforname or org.kde.plasma.Notifications.service.
> > For a temporary fix, disable whatever notification kdialog is using from
> > systemsettings.
>
> I'm not sure that is a fix. Does this affect knotifications and stop it from
> sending the notification or does it still send it via dbus and then let
> plasma determine whether or not to show / play the notification?
>
> > Or start a notification daemon, or remove the plasma notification service
> > file in the dbus service dir.
>
> That might be an option. I see a whole list here:
> https://wiki.archlinux.org/index.php/Desktop_notifications
>
> How would the system know which StartServiceByName to start if multiple
> services have been installed?
>
> https://dbus.freedesktop.org/doc/dbus-specification.html#bus-messages-start-> service-by-name
>
> I realize that the current behavior comes from the desire to have no naked
> notifications when plasma starts. Perhaps it is better to move the dbus
> registration of org.freedesktop.Notifications forward instead of relying on
> a binary like plasma_waitforname.
>
> Cheers,
> Jos
>
> > David
> >
> > On 30 Jul 2017 09:22, "Jos van den Oever" <jos at vandenoever.info> wrote:
> > > Hi all,
> > >
> > > KDialog can get stuck waiting for some dbus reply in certain setups.
> > > Here
> > > is a
> > > short command-line that demonstrates this.
> > >
> > > docker run -e DISPLAY=$DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix -ti --rm
> > > kdeneon/plasma:dev-unstable kdialog --msgbox 'wait for it'
> > >
> > > This runs kdialog in a docker environment. Some services are not
> > > available
> > > there. The hang is due to a KNotification as you can see from the
> > > backtrace.
> > >
> > > I've also attached the output from dbus-monitor with an indication of
> > > where
> > > the hang starts.
> > >
> > > Not all arguments to kdialog have this problem. Only the ones that try
> > > to
> > > start org.freedesktop.Notifications.
> > >
> > > Shouldn't that call fail faster?
> > >
> > > Cheers,
> > > Jos
> > >
> > > neon at fecce5c790e0:~$ gdb /usr/bin/kdialog
> > > GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.04) 7.11.1
> > > Copyright (C) 2016 Free Software Foundation, Inc.
> > > License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.
> > > html>
> > > This is free software: you are free to change and redistribute it.
> > > There is NO WARRANTY, to the extent permitted by law. Type "show
> > > copying"
> > > and "show warranty" for details.
> > > This GDB was configured as "x86_64-linux-gnu".
> > > Type "show configuration" for configuration details.
> > > For bug reporting instructions, please see:
> > > <http://www.gnu.org/software/gdb/bugs/>.
> > > Find the GDB manual and other documentation resources online at:
> > > <http://www.gnu.org/software/gdb/documentation/>.
> > > For help, type "help".
> > > Type "apropos word" to search for commands related to "word"...
> > > Reading symbols from /usr/bin/kdialog...(no debugging symbols
> > > found)...done.
> > > (gdb) run --msgbox hi
> > > Starting program: /usr/bin/kdialog --msgbox hi
> > > [Thread debugging using libthread_db enabled]
> > > Using host libthread_db library
> > > "/lib/x86_64-linux-gnu/libthread_db.so.1".
> > > [New Thread 0x7f2e96ec8700 (LWP 166)]
> > > [New Thread 0x7f2e8f5a9700 (LWP 167)]
> > > ^Z
> > > Thread 1 "kdialog" received signal SIGTSTP, Stopped (user).
> > > pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/
> > > pthread_cond_wait.S:185
> > > 185 ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S: No such
> > > file or
> > > directory.
> > > (gdb) back
> > > #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/
> > > x86_64/
> > > pthread_cond_wait.S:185
> > > #1 0x00007f2ea54cf8eb in QWaitCondition::wait(QMutex*, unsigned long)
> > > ()
> > > from
> > > /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
> > > #2 0x00007f2ea8375e54 in ?? () from /usr/lib/x86_64-linux-gnu/
> > > libQt5DBus.so.5
> > > #3 0x00007f2ea8331aa1 in ?? () from /usr/lib/x86_64-linux-gnu/
> > > libQt5DBus.so.5
> > > #4 0x00007f2ea831e6cb in QDBusConnection::call(QDBusMessage const&,
> > > QDBus::CallMode, int) const () from /usr/lib/x86_64-linux-gnu/
> > > libQt5DBus.so.5
> > > #5 0x00007f2ea833c862 in
> > > QDBusAbstractInterface::callWithArgumentList(QDBus::CallMode, QString
> > > const&,
> > > QList<QVariant> const&) () from
> > > /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
> > > #6 0x00007f2ea833d0e6 in QDBusAbstractInterface::call(QDBus::CallMode,
> > > QString const&, QVariant const&, QVariant const&, QVariant const&,
> > > QVariant
> > > const&, QVariant const&, QVariant const&, QVariant const&, QVariant
> > > const&) ()
> > > from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
> > > #7 0x00007f2ea833d2f1 in QDBusAbstractInterface::call(QString const&,
> > > QVariant const&, QVariant const&, QVariant const&, QVariant const&,
> > > QVariant
> > > const&, QVariant const&, QVariant const&, QVariant const&) () from
> > > /usr/lib/
> > > x86_64-linux-gnu/libQt5DBus.so.5
> > > #8 0x00007f2ea83230dc in QDBusConnectionInterface::startService(QString
> > > const&) () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
> > > #9 0x00007f2ea7d24f34 in ?? () from /usr/lib/x86_64-linux-gnu/
> > > libKF5Notifications.so.5
> > > #10 0x00007f2ea7d109d2 in ?? () from /usr/lib/x86_64-linux-gnu/
> > > libKF5Notifications.so.5
> > > #11 0x00007f2ea7d111f1 in ?? () from /usr/lib/x86_64-linux-gnu/
> > > libKF5Notifications.so.5
> > > #12 0x00007f2ea7d0efc5 in KNotification::sendEvent() () from
> > > /usr/lib/x86_64-
> > > linux-gnu/libKF5Notifications.so.5
> > > #13 0x00007f2ea56cfc59 in QObject::event(QEvent*) () from
> > > /usr/lib/x86_64-
> > > linux-gnu/libQt5Core.so.5
> > > #14 0x00007f2ea64f83fc in QApplicationPrivate::notify_helper(QObject*,
> > > QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
> > > #15 0x00007f2ea64ffe07 in QApplication::notify(QObject*, QEvent*) ()
> > > from
> > > /
> > > usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
> > > #16 0x00007f2ea56a2798 in QCoreApplication::notifyInternal2(QObject*,
> > > QEvent*)
> > > () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
> > > #17 0x00007f2ea56a4f7b in QCoreApplicationPrivate::
> > > sendPostedEvents(QObject*,
> > > int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
> > > #18 0x00007f2ea56f8323 in ?? () from /usr/lib/x86_64-linux-gnu/
> > > libQt5Core.so.5
> > > #19 0x00007f2ea064e197 in g_main_context_dispatch () from
> > > /lib/x86_64-linux-
> > > gnu/libglib-2.0.so.0
> > > #20 0x00007f2ea064e3f0 in ?? () from /lib/x86_64-linux-gnu/libglib-
> > > 2.0.so.0
> > > #21 0x00007f2ea064e49c in g_main_context_iteration () from
> > > /lib/x86_64-linux-
> > > gnu/libglib-2.0.so.0
> > > #22 0x00007f2ea56f792f in
> > > QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag
> > > >)
> > > ()
> > > from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
> > > #23 0x00007f2ea56a07ca in
> > > QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
> > > /usr/lib/
> > > x86_64-linux-gnu/libQt5Core.so.5
> > > #24 0x00007f2ea6727aa7 in QDialog::exec() () from
> > > /usr/lib/x86_64-linux-gnu/
> > > libQt5Widgets.so.5
> > > #25 0x00007f2ea6d04a8d in KMessageBox::createKMessageBox(QDialog*,
> > > QDialogButtonBox*, QIcon const&, QString const&, QStringList const&,
> > > QString
> > > const&, bool*, QFlags<KMessageBox::Option>, QString const&,
> > > QMessageBox::Icon)
> > > () from /usr/lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
> > > #26 0x00007f2ea6d05517 in KMessageBox::createKMessageBox(QDialog*,
> > > QDialogButtonBox*, QMessageBox::Icon, QString const&, QStringList
> > > const&,
> > > QString const&, bool*, QFlags<KMessageBox::Option>, QString const&) ()
> > > from /
> > > usr/lib/x86_64-linux-gnu/libKF5WidgetsAddons.so.5
> > > #27 0x00007f2ea6d09070 in ?? () from /usr/lib/x86_64-linux-gnu/
> > > libKF5WidgetsAddons.so.5
> > > #28 0x00007f2ea6d095ef in ?? () from /usr/lib/x86_64-linux-gnu/
> > > libKF5WidgetsAddons.so.5
> > > #29 0x000000000040ca2c in ?? ()
> > > #30 0x00007f2ea4cf4830 in __libc_start_main (main=0x409520, argc=3,
> > > argv=0x7fffffffecc8, init=<optimized out>, fini=<optimized out>,
> > > rtld_fini=<optimized out>, stack_end=0x7fffffffecb8)
> > >
> > > at ../csu/libc-start.c:291
> > >
> > > neon at be52b1fd30c6:~$ kdialog --msgbox 'wait for it'
> > > method call time=1501231696.069342 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=1 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=Hello
> > > method return time=1501231696.069357 sender=org.freedesktop.DBus ->
> > > destination=:1.3 serial=1 reply_serial=1
> > >
> > > string ":1.3"
> > >
> > > signal time=1501231696.069368 sender=org.freedesktop.DBus ->
> > > destination=(null
> > > destination) serial=9 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=NameOwnerChanged
> > >
> > > string ":1.3"
> > > string ""
> > > string ":1.3"
> > >
> > > signal time=1501231696.069379 sender=org.freedesktop.DBus ->
> > > destination=:1.3
> > > serial=2 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus;
> > > member=NameAcquired
> > >
> > > string ":1.3"
> > >
> > > method call time=1501231696.069658 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=2 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=AddMatch
> > >
> > > string "type='signal',path='/
> > >
> > > BreezeStyle',interface='org.kde.Breeze.Style',member='
> > > reparseConfiguration'"
> > > method call time=1501231696.069828 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=3 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=AddMatch
> > >
> > > string "type='signal',path='/
> > >
> > > BreezeDecoration',interface='org.kde.Breeze.Style',member='
> > > reparseConfiguration'"
> > > method call time=1501231696.072801 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=4 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=AddMatch
> > >
> > > string "type='signal',path='/
> > >
> > > KIconLoader',interface='org.kde.KIconLoader',member='iconChanged'"
> > > method call time=1501231696.080759 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=5 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=AddMatch
> > >
> > > string
> > >
> > > "type='signal',sender='org.freedesktop.DBus',interface='
> > > org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.
> > > a11y.Bus',arg1=''"
> > > method call time=1501231696.080887 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=6 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=NameHasOwner
> > >
> > > string "org.a11y.Bus"
> > >
> > > method return time=1501231696.080921 sender=org.freedesktop.DBus ->
> > > destination=:1.3 serial=3 reply_serial=6
> > >
> > > boolean false
> > >
> > > method call time=1501231696.131050 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=7 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=AddMatch
> > >
> > > string "type='signal',path='/
> > >
> > > KDEPlatformTheme',interface='org.kde.KDEPlatformTheme',
> > > member='refreshFonts'"
> > > method call time=1501231696.131211 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=8 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=AddMatch
> > >
> > > string "type='signal',path='/
> > >
> > > KToolBar',interface='org.kde.KToolBar',member='styleChanged'"
> > > method call time=1501231696.131225 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=9 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=AddMatch
> > >
> > > string "type='signal',path='/
> > >
> > > KGlobalSettings',interface='org.kde.KGlobalSettings',
> > > member='notifyChange'"
> > > method call time=1501231696.131523 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=10 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=NameHasOwner
> > >
> > > string "org.freedesktop.Notifications"
> > >
> > > method return time=1501231696.131636 sender=org.freedesktop.DBus ->
> > > destination=:1.3 serial=4 reply_serial=10
> > >
> > > boolean false
> > >
> > > method call time=1501231696.131715 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=11 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=AddMatch
> > >
> > > string
> > >
> > > "type='signal',sender='org.freedesktop.DBus',interface='
> > > org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.
> > > freedesktop.Notifications'"
> > > method call time=1501231696.131845 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=12 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=ListActivatableNames
> > > method return time=1501231696.131855 sender=org.freedesktop.DBus ->
> > > destination=:1.3 serial=5 reply_serial=12
> > >
> > > array [
> > >
> > > string "org.freedesktop.DBus"
> > > string "org.freedesktop.Notifications"
> > > string "org.kde.kpasswdserver"
> > > string "org.kde.kded5"
> > > string "org.kde.fontinst"
> > > string "org.gnome.evolution.dataserver.AddressBook9"
> > > string "org.gnome.GConf"
> > > string "org.gnome.evolution.dataserver.Calendar7"
> > > string "org.gnome.evolution.dataserver.Sources5"
> > > string "org.freedesktop.systemd1"
> > > string "org.a11y.Bus"
> > > string "org.kde.kiod5"
> > > string "org.kde.kglobalaccel"
> > > string "org.kde.kuiserver"
> > > string "org.freedesktop.FileManager1"
> > > string "org.kde.Spectacle"
> > > string "org.kde.kwalletd5"
> > > string "org.freedesktop.ColorHelper"
> > > string "org.kde.kdeconnect"
> > > string "org.kde.KScreen"
> > > string "org.kde.kwalletd"
> > > string "org.gtk.GLib.PACRunner"
> > > string "org.kde.kcookiejar5"
> > > string "org.kde.kssld5"
> > > string "org.kde.kioexecd"
> > > string "ca.desrt.dconf"
> > > string "org.bluez.obex"
> > > string "org.gnome.evolution.dataserver.UserPrompter0"
> > > string "org.kde.krunner"
> > >
> > > ]
> > >
> > > method call time=1501231696.132133 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=13 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=StartServiceByName
> > >
> > > string "org.freedesktop.Notifications"
> > > uint32 0
> > >
> > > HANGING
> > >
> > > method call time=1501231708.246641 sender=:1.2 ->
> > > destination=org.freedesktop.DBus serial=4 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=RemoveMatch
> > >
> > > string
> > >
> > > "type='signal',sender='org.freedesktop.DBus',interface='
> > > org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.
> > > freedesktop.Notifications',arg1=''"
> > > method call time=1501231708.246880 sender=:1.2 ->
> > > destination=org.freedesktop.DBus serial=5 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=RemoveMatch
> > >
> > > string
> > >
> > > "type='signal',sender='org.freedesktop.DBus',interface='
> > > org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.
> > > freedesktop.DBus'"
> > > error time=1501231708.246902 sender=org.freedesktop.DBus ->
> > > destination=:1.2
> > > error_name=org.freedesktop.DBus.Error.MatchRuleNotFound reply_serial=5
> > >
> > > string "The given match rule wasn't found and can't be removed"
> > >
> > > signal time=1501231708.246911 sender=org.freedesktop.DBus ->
> > > destination=:1.2
> > > serial=10 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus;
> > > member=NameLost
> > >
> > > string ":1.2"
> > >
> > > signal time=1501231708.246920 sender=org.freedesktop.DBus ->
> > > destination=(null
> > > destination) serial=11 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=NameOwnerChanged
> > >
> > > string ":1.2"
> > > string ":1.2"
> > > string ""
> > >
> > > error time=1501231708.248030 sender=org.freedesktop.DBus ->
> > > destination=:1.3
> > > error_name=org.freedesktop.DBus.Error.Spawn.ChildExited reply_serial=13
> > >
> > > string "Process org.freedesktop.Notifications exited with status 1"
> > >
> > > method call time=1501231708.248344 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=14 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=AddMatch
> > >
> > > string "type='signal',path='/
> > >
> > > Config',interface='org.kde.knotification',member='reparseConfiguration'"
> > > method call time=1501231708.248979 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=15 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=AddMatch
> > >
> > > string
> > >
> > > "type='signal',interface='org.kde.Phonon.Factory',member='
> > > phononBackendChanged'"
> > > signal time=1501231708.249916 sender=:1.3 -> destination=(null
> > > destination)
> > > serial=16 path=/AudioOutputs/0; interface=org.kde.Phonon.AudioOutput;
> > > member=newOutputAvailable
> > >
> > > string ":1.3"
> > > string "/AudioOutputs/0"
> > >
> > > [00000000012792c8] pulse audio output error: PulseAudio server
> > > connection
> > > failure: Connection refused
> > > [000000000127bd28] pulse audio output error: PulseAudio server
> > > connection
> > > failure: Connection refused
> > > [000000000127bd28] core audio output error: no suitable audio output
> > > module
> > > signal time=1501231708.348299 sender=:1.3 -> destination=(null
> > > destination)
> > > serial=17 path=/AudioOutputs/0; interface=org.kde.Phonon.AudioOutput;
> > > member=volumeChanged
> > >
> > > double -nan
> > >
> > > signal time=1501231708.348332 sender=:1.3 -> destination=(null
> > > destination)
> > > serial=18 path=/AudioOutputs/0; interface=org.kde.Phonon.AudioOutput;
> > > member=volumeChanged
> > >
> > > double -nan
> > >
> > > [00007f027801e178] pulse audio output error: PulseAudio server
> > > connection
> > > failure: Connection refused
> > > [00007f027801e178] core audio output error: no suitable audio output
> > > module
> > > [00007f02800247a8] core decoder error: failed to create audio output
> > > method call time=1501231724.463927 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=19 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=RemoveMatch
> > >
> > > string
> > >
> > > "type='signal',interface='org.kde.Phonon.Factory',member='
> > > phononBackendChanged'"
> > > method call time=1501231724.464062 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=20 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=RemoveMatch
> > >
> > > string "type='signal',path='/
> > >
> > > BreezeDecoration',interface='org.kde.Breeze.Style',member='
> > > reparseConfiguration'"
> > > method call time=1501231724.464085 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=21 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=RemoveMatch
> > >
> > > string "type='signal',path='/
> > >
> > > BreezeStyle',interface='org.kde.Breeze.Style',member='
> > > reparseConfiguration'"
> > > method call time=1501231724.464740 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=22 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=RemoveMatch
> > >
> > > string "type='signal',path='/
> > >
> > > KDEPlatformTheme',interface='org.kde.KDEPlatformTheme',
> > > member='refreshFonts'"
> > > method call time=1501231724.464931 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=23 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=RemoveMatch
> > >
> > > string "type='signal',path='/
> > >
> > > KToolBar',interface='org.kde.KToolBar',member='styleChanged'"
> > > method call time=1501231724.464943 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=24 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=RemoveMatch
> > >
> > > string "type='signal',path='/
> > >
> > > KGlobalSettings',interface='org.kde.KGlobalSettings',
> > > member='notifyChange'"
> > > method call time=1501231724.481407 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=25 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=RemoveMatch
> > >
> > > string
> > >
> > > "type='signal',sender='org.freedesktop.DBus',interface='
> > > org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.
> > > a11y.Bus',arg1=''"
> > > method call time=1501231724.481456 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=26 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=RemoveMatch
> > >
> > > string
> > >
> > > "type='signal',sender='org.freedesktop.DBus',interface='
> > > org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.
> > > freedesktop.DBus'"
> > > error time=1501231724.481473 sender=org.freedesktop.DBus ->
> > > destination=:1.3
> > > error_name=org.freedesktop.DBus.Error.MatchRuleNotFound reply_serial=26
> > >
> > > string "The given match rule wasn't found and can't be removed"
> > >
> > > method call time=1501231724.481734 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=27 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=RemoveMatch
> > >
> > > string "type='signal',path='/
> > >
> > > Config',interface='org.kde.knotification',member='reparseConfiguration'"
> > > method call time=1501231724.481907 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=28 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=RemoveMatch
> > >
> > > string
> > >
> > > "type='signal',sender='org.freedesktop.DBus',interface='
> > > org.freedesktop.DBus',member='NameOwnerChanged',arg0='org.
> > > freedesktop.Notifications'"
> > > signal time=1501231724.482106 sender=:1.3 -> destination=(null
> > > destination)
> > > serial=29 path=/AudioOutputs/0; interface=org.kde.Phonon.AudioOutput;
> > > member=outputDestroyed
> > > method call time=1501231724.483055 sender=:1.3 ->
> > > destination=org.freedesktop.DBus serial=30 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=RemoveMatch
> > >
> > > string "type='signal',path='/
> > >
> > > KIconLoader',interface='org.kde.KIconLoader',member='iconChanged'"
> > > signal time=1501231724.483516 sender=org.freedesktop.DBus ->
> > > destination=:1.3
> > > serial=12 path=/org/freedesktop/DBus; interface=org.freedesktop.DBus;
> > > member=NameLost
> > >
> > > string ":1.3"
> > >
> > > signal time=1501231724.483586 sender=org.freedesktop.DBus ->
> > > destination=(null
> > > destination) serial=13 path=/org/freedesktop/DBus;
> > > interface=org.freedesktop.DBus; member=NameOwnerChanged
> > >
> > > string ":1.3"
> > > string ":1.3"
> > > string ""
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