Bug 253889 - Repeated crash of knetworkmanager
Summary: Repeated crash of knetworkmanager
Status: RESOLVED WAITINGFORINFO
Alias: None
Product: Network Management
Classification: Miscellaneous
Component: general (show other bugs)
Version: unspecified
Platform: unspecified Linux
: NOR crash
Target Milestone: ---
Assignee: Will Stephenson
URL:
Keywords:
: 255746 268229 276818 278635 (view as bug list)
Depends on:
Blocks:
 
Reported: 2010-10-11 22:50 UTC by Lorne
Modified: 2011-10-27 17:24 UTC (History)
6 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


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Description Lorne 2010-10-11 22:50:32 UTC
Application: networkmanagement_configshell ()
KDE Platform Version: 4.4.4 (KDE 4.4.4) "release 2"
Qt Version: 4.6.3
Operating System: Linux 2.6.34-12-desktop x86_64
Distribution: "openSUSE 11.3 (x86_64)"

-- Information about the crash:
Knetworkmanager works fine, unless you are troubleshooting and doing multiple connect attempts via wireless. It is consistent and repeatable. Usually takes 6 or more tries, but then it does it everytime there after, until a reboot. I am using Openuse 11.3 on a Dell XPS M1530. Hopefully with the trace and this, it is enough to work on. 

The crash can be reproduced every time.

 -- Backtrace:
Application: Network Management (networkmanagement_configshell), signal: Segmentation fault
[KCrash Handler]
#5  Solid::Control::FrontendObjectPrivate::backendObject (this=0x20) at /usr/src/debug/kdebase-workspace-4.4.4/libs/solid/control/frontendobject.cpp:39
#6  0x00007f66faa5c13d in Solid::Control::AccessPoint::ssid (this=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.4.4/libs/solid/control/wirelessaccesspoint.cpp:104
#7  0x00007f66fcb165fa in ApItemModel::data (this=<value optimized out>, index=<value optimized out>, role=<value optimized out>) at /usr/src/debug/networkmanagement/libs/ui/apitemmodel.cpp:85
#8  0x00007f66fcb1a638 in ScanWidget::currentAccessPoint (this=<value optimized out>) at /usr/src/debug/networkmanagement/libs/ui/scanwidget.cpp:79
#9  0x00007f66fcb143c9 in Wireless80211Widget::scanClicked (this=<value optimized out>) at /usr/src/debug/networkmanagement/libs/ui/802_11_wirelesswidget.cpp:144
#10 0x00007f66fcb05f90 in Wireless80211Widget::qt_metacall (this=0x991850, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=<value optimized out>)
    at /usr/src/debug/networkmanagement/build/libs/ui/moc_802_11_wirelesswidget.cpp:74
#11 0x00007f66fb8dfa1f in QMetaObject::activate (sender=0x9cf7d0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fff733ed950) at kernel/qobject.cpp:3295
#12 0x00007f66fa0bc082 in QAbstractButton::clicked (this=<value optimized out>, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:206
#13 0x00007f66f9e0768b in QAbstractButtonPrivate::emitClicked (this=0xa92380) at widgets/qabstractbutton.cpp:546
#14 0x00007f66f9e08a3b in QAbstractButtonPrivate::click (this=0xa92380) at widgets/qabstractbutton.cpp:539
#15 0x00007f66f9e08cac in QAbstractButton::mouseReleaseEvent (this=0x9cf7d0, e=0x7fff733ee2d0) at widgets/qabstractbutton.cpp:1121
#16 0x00007f66f9ab6dbc in QWidget::event (this=0x9cf7d0, event=0x7fff733ee2d0) at kernel/qwidget.cpp:8044
#17 0x00007f66f9a664d4 in QApplicationPrivate::notify_helper (this=0x627d70, receiver=0x9cf7d0, e=0x7fff733ee2d0) at kernel/qapplication.cpp:4302
#18 0x00007f66f9a6f34a in QApplication::notify (this=<value optimized out>, receiver=0x9cf7d0, e=0x7fff733ee2d0) at kernel/qapplication.cpp:3867
#19 0x00007f66fc424c06 in KApplication::notify (this=0x7fff733ef230, receiver=0x9cf7d0, event=0x7fff733ee2d0) at /usr/src/debug/kdelibs-4.4.4/kdeui/kernel/kapplication.cpp:302
#20 0x00007f66fb8cbe4c in QCoreApplication::notifyInternal (this=0x7fff733ef230, receiver=0x9cf7d0, event=0x7fff733ee2d0) at kernel/qcoreapplication.cpp:726
#21 0x00007f66f9a681e5 in sendEvent (receiver=0x9cf7d0, event=0x7fff733ee2d0, alienWidget=0x9cf7d0, nativeWidget=0x7fff733eeff0, buttonDown=0x7f66fa512b28, lastMouseReceiver=..., spontaneous=true)
    at ../../src/corelib/kernel/qcoreapplication.h:215
#22 QApplicationPrivate::sendMouseEvent (receiver=0x9cf7d0, event=0x7fff733ee2d0, alienWidget=0x9cf7d0, nativeWidget=0x7fff733eeff0, buttonDown=0x7f66fa512b28, lastMouseReceiver=..., spontaneous=
    true) at kernel/qapplication.cpp:2967
#23 0x00007f66f9ae26c8 in QETWidget::translateMouseEvent (this=0x7fff733eeff0, event=<value optimized out>) at kernel/qapplication_x11.cpp:4380
#24 0x00007f66f9ae0e19 in QApplication::x11ProcessEvent (this=0x7fff733ef230, event=0x7fff733eec30) at kernel/qapplication_x11.cpp:3513
#25 0x00007f66f9b07492 in x11EventSourceDispatch (s=0x62bbb0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#26 0x00007f66f6a26a93 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#27 0x00007f66f6a27270 in ?? () from /usr/lib64/libglib-2.0.so.0
#28 0x00007f66f6a27510 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#29 0x00007f66fb8f467f in QEventDispatcherGlib::processEvents (this=0x6118c0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#30 0x00007f66f9b0714e in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#31 0x00007f66fb8cb292 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#32 0x00007f66fb8cb495 in QEventLoop::exec (this=0x7fff733eef50, flags=...) at kernel/qeventloop.cpp:201
#33 0x00007f66f9f027ee in QDialog::exec (this=0x7fff733eeff0) at dialogs/qdialog.cpp:546
#34 0x00007f66fcb2bb97 in ConnectionEditor::addConnection (this=0x7fff733ef2f0, useDefaults=true, type=<value optimized out>, otherArgs=...)
    at /usr/src/debug/networkmanagement/libs/ui/connectioneditor.cpp:109
#35 0x0000000000402d0b in main (argc=4, argv=0x7fff733ef818) at /usr/src/debug/networkmanagement/settings/configshell/main.cpp:81

Reported using DrKonqi
Comment 1 Lamarque V. Souza 2011-06-23 22:49:32 UTC
*** Bug 255746 has been marked as a duplicate of this bug. ***
Comment 2 Lamarque V. Souza 2011-06-23 22:49:45 UTC
*** Bug 268229 has been marked as a duplicate of this bug. ***
Comment 3 Lamarque V. Souza 2011-06-30 22:09:20 UTC
*** Bug 276818 has been marked as a duplicate of this bug. ***
Comment 4 Lamarque V. Souza 2011-07-27 22:39:07 UTC
*** Bug 278635 has been marked as a duplicate of this bug. ***
Comment 5 Lamarque V. Souza 2011-07-31 15:35:05 UTC
Is this still happening?
Comment 6 Bruno Friedmann 2011-08-01 10:58:33 UTC
I'm no more using knetworkmanage. Use now nm0.9 + pnm0.9 under 4.7
Comment 7 Manuel Bärenz 2011-10-27 10:30:05 UTC
The bug is still occuring  in KDE 4.7.2, network-manager 0.9.1.90 as distributed in Kubuntu oneiric-proposed. It happens every time I try to enable the plasma-widget-networkmanager.

Why is this marked as resolved?

I don't think 276818 is a duplicate of this bug since this bug occurs every when starting the applet, and 276818 only sometimes.

My backtrace:

Application: Plasma-Desktop-Umgebung (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f65e1c0c7a0 (LWP 1740))]

Thread 3 (Thread 0x7f65be3ff700 (LWP 1743)):
#0  0x00007f65de6e5712 in postEventSourceCheck (source=0x7f65b8001330) at kernel/qeventdispatcher_glib.cpp:270
#1  0x00007f65d5a7e734 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65d5a7ef82 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65d5a7f429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f65de6e5f3e in QEventDispatcherGlib::processEvents (this=0x7f65b80008b0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f65de6b9cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f65de6b9ef7 in QEventLoop::exec (this=0x7f65be3fedb0, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007f65de5d127f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#8  0x00007f65de69ccbf in QInotifyFileSystemWatcherEngine::run (this=0x172f980) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f65de5d3d05 in QThreadPrivate::start (arg=0x172f980) at thread/qthread_unix.cpp:331
#10 0x00007f65d658befc in start_thread (arg=0x7f65be3ff700) at pthread_create.c:304
#11 0x00007f65e14ff89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f65bd7d2700 (LWP 1744)):
#0  0x00007fff6f1af92c in clock_gettime ()
#1  0x00007f65d5d3407b in __GI_clock_gettime (clock_id=1, tp=0x7f65bd7d1b20) at ../sysdeps/unix/clock_gettime.c:100
#2  0x00007f65de624074 in do_gettime (frac=0x7f65bd7d1b38, sec=0x7f65bd7d1b30) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007f65de6e66ed in QTimerInfoList::updateCurrentTime (this=0x1861fb0) at kernel/qeventdispatcher_unix.cpp:339
#5  0x00007f65de6e6a33 in QTimerInfoList::timerWait (this=0x1861fb0, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#6  0x00007f65de6e544c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7f65bd7d1c1c) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007f65de6e54f5 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007f65d5a7dff2 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f65d5a7edfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f65d5a7f429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f65de6e5f3e in QEventDispatcherGlib::processEvents (this=0x161d110, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#12 0x00007f65de6b9cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007f65de6b9ef7 in QEventLoop::exec (this=0x7f65bd7d1db0, flags=...) at kernel/qeventloop.cpp:201
#14 0x00007f65de5d127f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#15 0x00007f65de69ccbf in QInotifyFileSystemWatcherEngine::run (this=0x1874df0) at io/qfilesystemwatcher_inotify.cpp:248
#16 0x00007f65de5d3d05 in QThreadPrivate::start (arg=0x1874df0) at thread/qthread_unix.cpp:331
#17 0x00007f65d658befc in start_thread (arg=0x7f65bd7d2700) at pthread_create.c:304
#18 0x00007f65e14ff89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#19 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f65e1c0c7a0 (LWP 1740)):
[KCrash Handler]
#6  WicdNetworkManager::createNetworkInterface (this=0x7fff6f1aa320, uni=...) at ../../../solid/wicd/networkmanager.cpp:165
#7  0x00007f65b245c36b in Solid::Control::NetworkManagerNm09Private::networkInterfaces (this=0x326b860) at ../../../../../solidcontrolfuture/libs/solid/control/networkmanager.cpp:109
#8  0x00007f65b245c3ec in Solid::Control::NetworkManagerNm09::networkInterfaces () at ../../../../../solidcontrolfuture/libs/solid/control/networkmanager.cpp:119
#9  0x00007f65b2f807da in NetworkManagerApplet::NetworkManagerApplet (this=0x33c4180, parent=<optimized out>, args=<optimized out>) at ../../applet/networkmanager.cpp:101
#10 0x00007f65b2f81ee7 in KPluginFactory::createInstance<NetworkManagerApplet, QObject> (parentWidget=<optimized out>, parent=<optimized out>, args=...) at /usr/include/kpluginfactory.h:477
#11 0x00007f65dee83c51 in KPluginFactory::create (this=0x29ad880, iface=0x7f65e119c120 "Plasma::Applet", parentWidget=0x0, parent=0x0, args=..., keyword=<optimized out>) at ../../kdecore/util/kpluginfactory.cpp:203
#12 0x00007f65e104416f in create<Plasma::Applet> (keyword=..., parent=0x0, this=0x29ad880, args=..., parentWidget=0x0) at ../../kdecore/util/kpluginfactory.h:531
#13 createInstance<Plasma::Applet> (error=0x7fff6f1aa780, args=..., parent=0x0, parentWidget=0x0, this=0x2f01460) at ../../kdecore/services/kservice.h:551
#14 createInstance<Plasma::Applet> (error=0x7fff6f1aa780, args=..., parent=0x0, this=0x2f01460) at ../../kdecore/services/kservice.h:528
#15 Plasma::PluginLoader::loadApplet (this=<optimized out>, name=..., appletId=<optimized out>, args=<optimized out>) at ../../plasma/pluginloader.cpp:151
#16 0x00007f65e100fab7 in Plasma::ContainmentPrivate::addApplet (this=0x10f2c10, name=..., args=..., appletGeometry=..., id=0, delayInit=false) at ../../plasma/containment.cpp:2217
#17 0x00007f65e01c1a57 in Plasma::WidgetExplorer::addApplet (this=0x2ea8e30, appletItem=0x2ee23a0) at ../../../libs/plasmagenericshell/widgetsexplorer/widgetexplorer.cpp:378
#18 0x00007f65e01c37e4 in Plasma::WidgetExplorer::qt_metacall (this=0x2ea8e30, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff6f1aab90) at ./widgetexplorer.moc:91
#19 0x00007f65de6cdeba in QMetaObject::activate (sender=0x32c2940, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff6f1aab90) at kernel/qobject.cpp:3278
#20 0x00007f65e019485f in AppletsListWidget::appletDoubleClicked (this=<optimized out>, _t1=0x2ee23a0) at moc_appletslist.cpp:119
#21 0x00007f65e0194964 in AppletsListWidget::qt_metacall (this=0x32c2940, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff6f1aaca0) at moc_appletslist.cpp:99
#22 0x00007f65de6cdeba in QMetaObject::activate (sender=0x1964660, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff6f1aaca0) at kernel/qobject.cpp:3278
#23 0x00007f65e0195362 in Plasma::AbstractIcon::doubleClicked (this=<optimized out>, _t1=0x1964660) at moc_abstracticon.cpp:164
#24 0x00007f65de0327cc in QGraphicsItem::sceneEvent (this=0x1964670, event=0x7fff6f1ab400) at graphicsview/qgraphicsitem.cpp:6733
#25 0x00007f65de05ac2a in QGraphicsScenePrivate::sendMouseEvent (this=0x1012700, mouseEvent=0x7fff6f1ab400) at graphicsview/qgraphicsscene.cpp:1291
#26 0x00007f65de05fc44 in QGraphicsScenePrivate::mousePressEventHandler (this=0x1012700, mouseEvent=0x7fff6f1ab400) at graphicsview/qgraphicsscene.cpp:1418
#27 0x00007f65de06984f in QGraphicsScene::event (this=0x1012240, event=0x7fff6f1ab400) at graphicsview/qgraphicsscene.cpp:3456
#28 0x00007f65dda6b424 in notify_helper (e=0x7fff6f1ab400, receiver=0x1012240, this=0xf2b250) at kernel/qapplication.cpp:4486
#29 QApplicationPrivate::notify_helper (this=0xf2b250, receiver=0x1012240, e=0x7fff6f1ab400) at kernel/qapplication.cpp:4458
#30 0x00007f65dda70291 in QApplication::notify (this=0xf19cd0, receiver=0x1012240, e=0x7fff6f1ab400) at kernel/qapplication.cpp:4365
#31 0x00007f65df369126 in KApplication::notify (this=0xf19cd0, receiver=0x1012240, event=0x7fff6f1ab400) at ../../kdeui/kernel/kapplication.cpp:311
#32 0x00007f65de6baafc in QCoreApplication::notifyInternal (this=0xf19cd0, receiver=0x1012240, event=0x7fff6f1ab400) at kernel/qcoreapplication.cpp:787
#33 0x00007f65de07f3b9 in QGraphicsView::mouseDoubleClickEvent (this=0x2a926f0, event=0x7fff6f1abbc0) at graphicsview/qgraphicsview.cpp:3120
#34 0x00007f65ddabbcb4 in QWidget::event (this=0x2a926f0, event=0x7fff6f1abbc0) at kernel/qwidget.cpp:8299
#35 0x00007f65dde644f6 in QFrame::event (this=0x2a926f0, e=0x7fff6f1abbc0) at widgets/qframe.cpp:557
#36 0x00007f65de087d3b in QGraphicsView::viewportEvent (this=0x2a926f0, event=0x7fff6f1abbc0) at graphicsview/qgraphicsview.cpp:2864
#37 0x00007f65de6bac88 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x2ab94a0, event=0x7fff6f1abbc0) at kernel/qcoreapplication.cpp:902
#38 0x00007f65dda6b3ef in notify_helper (e=0x7fff6f1abbc0, receiver=0x2ab94a0, this=0xf2b250) at kernel/qapplication.cpp:4482
#39 QApplicationPrivate::notify_helper (this=0xf2b250, receiver=0x2ab94a0, e=0x7fff6f1abbc0) at kernel/qapplication.cpp:4458
#40 0x00007f65dda70c6b in QApplication::notify (this=<optimized out>, receiver=0x2ab94a0, e=0x7fff6f1abbc0) at kernel/qapplication.cpp:4047
#41 0x00007f65df369126 in KApplication::notify (this=0xf19cd0, receiver=0x2ab94a0, event=0x7fff6f1abbc0) at ../../kdeui/kernel/kapplication.cpp:311
#42 0x00007f65de6baafc in QCoreApplication::notifyInternal (this=0xf19cd0, receiver=0x2ab94a0, event=0x7fff6f1abbc0) at kernel/qcoreapplication.cpp:787
#43 0x00007f65dda6c3f2 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#44 QApplicationPrivate::sendMouseEvent (receiver=0x2ab94a0, event=0x7fff6f1abbc0, alienWidget=0x2ab94a0, nativeWidget=0x30c0ce0, buttonDown=0x2ab94a0, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3146
#45 0x00007f65ddaeb945 in QETWidget::translateMouseEvent (this=0x30c0ce0, event=<optimized out>) at kernel/qapplication_x11.cpp:4568
#46 0x00007f65ddaea8be in QApplication::x11ProcessEvent (this=0xf19cd0, event=0x7fff6f1ac3e0) at kernel/qapplication_x11.cpp:3690
#47 0x00007f65ddb13412 in x11EventSourceDispatch (s=0xf27b90, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#48 0x00007f65d5a7ea5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#49 0x00007f65d5a7f258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#50 0x00007f65d5a7f429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#51 0x00007f65de6e5ed6 in QEventDispatcherGlib::processEvents (this=0xea0f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#52 0x00007f65ddb1307e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#53 0x00007f65de6b9cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#54 0x00007f65de6b9ef7 in QEventLoop::exec (this=0x7fff6f1ac7b0, flags=...) at kernel/qeventloop.cpp:201
#55 0x00007f65de6be789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#56 0x00007f65e17fe1a3 in kdemain (argc=1, argv=0x7fff6f1acb98) at ../../../../plasma/desktop/shell/main.cpp:120
#57 0x00007f65e143f30d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff6f1acb98, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff6f1acb88) at libc-start.c:226
#58 0x0000000000400671 in _start ()
Comment 8 Lamarque V. Souza 2011-10-27 17:24:43 UTC
(In reply to comment #7)
> The bug is still occuring  in KDE 4.7.2, network-manager 0.9.1.90 as
> distributed in Kubuntu oneiric-proposed. It happens every time I try to enable
> the plasma-widget-networkmanager.
> 
> Why is this marked as resolved?

Because for three months I am waiting for someone to answer my question if this problem still happens. There have been a lot of changes and fixes in the last moths so I want to know if this bug has already been fixed. Until someone answers it this bug is going to be ignored (RESOLVED/WAITINGFORINFO).
 
> I don't think 276818 is a duplicate of this bug since this bug occurs every
> when starting the applet, and 276818 only sometimes.

The backtrace below is not related to this bug, but with bug http://bugs.kde.org/280494, which was fixed two months ago. The fact the Kubuntu 11.10 ships with a more than four months old version of Plasma does not help and is one of the reasons I tend to ignore bugs I cannot reproduce, like this one. Please upgrade to Plasma NM 0.8.90 or help me convince Kubuntu to provide a more updated version with less bugs.
 
> My backtrace:
> 
> Application: Plasma-Desktop-Umgebung (plasma-desktop), signal: Segmentation
> fault
> [Current thread is 1 (Thread 0x7f65e1c0c7a0 (LWP 1740))]
> 
> Thread 3 (Thread 0x7f65be3ff700 (LWP 1743)):
> #0  0x00007f65de6e5712 in postEventSourceCheck (source=0x7f65b8001330) at
> kernel/qeventdispatcher_glib.cpp:270
> #1  0x00007f65d5a7e734 in g_main_context_check () from
> /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #2  0x00007f65d5a7ef82 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #3  0x00007f65d5a7f429 in g_main_context_iteration () from
> /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #4  0x00007f65de6e5f3e in QEventDispatcherGlib::processEvents
> (this=0x7f65b80008b0, flags=<optimized out>) at
> kernel/qeventdispatcher_glib.cpp:424
> #5  0x00007f65de6b9cf2 in QEventLoop::processEvents (this=<optimized out>,
> flags=...) at kernel/qeventloop.cpp:149
> #6  0x00007f65de6b9ef7 in QEventLoop::exec (this=0x7f65be3fedb0, flags=...) at
> kernel/qeventloop.cpp:201
> #7  0x00007f65de5d127f in QThread::exec (this=<optimized out>) at
> thread/qthread.cpp:498
> #8  0x00007f65de69ccbf in QInotifyFileSystemWatcherEngine::run (this=0x172f980)
> at io/qfilesystemwatcher_inotify.cpp:248
> #9  0x00007f65de5d3d05 in QThreadPrivate::start (arg=0x172f980) at
> thread/qthread_unix.cpp:331
> #10 0x00007f65d658befc in start_thread (arg=0x7f65be3ff700) at
> pthread_create.c:304
> #11 0x00007f65e14ff89d in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
> #12 0x0000000000000000 in ?? ()
> 
> Thread 2 (Thread 0x7f65bd7d2700 (LWP 1744)):
> #0  0x00007fff6f1af92c in clock_gettime ()
> #1  0x00007f65d5d3407b in __GI_clock_gettime (clock_id=1, tp=0x7f65bd7d1b20) at
> ../sysdeps/unix/clock_gettime.c:100
> #2  0x00007f65de624074 in do_gettime (frac=0x7f65bd7d1b38, sec=0x7f65bd7d1b30)
> at tools/qelapsedtimer_unix.cpp:123
> #3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
> #4  0x00007f65de6e66ed in QTimerInfoList::updateCurrentTime (this=0x1861fb0) at
> kernel/qeventdispatcher_unix.cpp:339
> #5  0x00007f65de6e6a33 in QTimerInfoList::timerWait (this=0x1861fb0, tm=...) at
> kernel/qeventdispatcher_unix.cpp:442
> #6  0x00007f65de6e544c in timerSourcePrepareHelper (src=<optimized out>,
> timeout=0x7f65bd7d1c1c) at kernel/qeventdispatcher_glib.cpp:136
> #7  0x00007f65de6e54f5 in timerSourcePrepare (source=<optimized out>,
> timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
> #8  0x00007f65d5a7dff2 in g_main_context_prepare () from
> /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #9  0x00007f65d5a7edfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #10 0x00007f65d5a7f429 in g_main_context_iteration () from
> /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #11 0x00007f65de6e5f3e in QEventDispatcherGlib::processEvents (this=0x161d110,
> flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
> #12 0x00007f65de6b9cf2 in QEventLoop::processEvents (this=<optimized out>,
> flags=...) at kernel/qeventloop.cpp:149
> #13 0x00007f65de6b9ef7 in QEventLoop::exec (this=0x7f65bd7d1db0, flags=...) at
> kernel/qeventloop.cpp:201
> #14 0x00007f65de5d127f in QThread::exec (this=<optimized out>) at
> thread/qthread.cpp:498
> #15 0x00007f65de69ccbf in QInotifyFileSystemWatcherEngine::run (this=0x1874df0)
> at io/qfilesystemwatcher_inotify.cpp:248
> #16 0x00007f65de5d3d05 in QThreadPrivate::start (arg=0x1874df0) at
> thread/qthread_unix.cpp:331
> #17 0x00007f65d658befc in start_thread (arg=0x7f65bd7d2700) at
> pthread_create.c:304
> #18 0x00007f65e14ff89d in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
> #19 0x0000000000000000 in ?? ()
> 
> Thread 1 (Thread 0x7f65e1c0c7a0 (LWP 1740)):
> [KCrash Handler]
> #6  WicdNetworkManager::createNetworkInterface (this=0x7fff6f1aa320, uni=...)
> at ../../../solid/wicd/networkmanager.cpp:165
> #7  0x00007f65b245c36b in
> Solid::Control::NetworkManagerNm09Private::networkInterfaces (this=0x326b860)
> at ../../../../../solidcontrolfuture/libs/solid/control/networkmanager.cpp:109
> #8  0x00007f65b245c3ec in Solid::Control::NetworkManagerNm09::networkInterfaces
> () at
> ../../../../../solidcontrolfuture/libs/solid/control/networkmanager.cpp:119
> #9  0x00007f65b2f807da in NetworkManagerApplet::NetworkManagerApplet
> (this=0x33c4180, parent=<optimized out>, args=<optimized out>) at
> ../../applet/networkmanager.cpp:101
> #10 0x00007f65b2f81ee7 in KPluginFactory::createInstance<NetworkManagerApplet,
> QObject> (parentWidget=<optimized out>, parent=<optimized out>, args=...) at
> /usr/include/kpluginfactory.h:477
> #11 0x00007f65dee83c51 in KPluginFactory::create (this=0x29ad880,
> iface=0x7f65e119c120 "Plasma::Applet", parentWidget=0x0, parent=0x0, args=...,
> keyword=<optimized out>) at ../../kdecore/util/kpluginfactory.cpp:203
> #12 0x00007f65e104416f in create<Plasma::Applet> (keyword=..., parent=0x0,
> this=0x29ad880, args=..., parentWidget=0x0) at
> ../../kdecore/util/kpluginfactory.h:531
> #13 createInstance<Plasma::Applet> (error=0x7fff6f1aa780, args=..., parent=0x0,
> parentWidget=0x0, this=0x2f01460) at ../../kdecore/services/kservice.h:551
> #14 createInstance<Plasma::Applet> (error=0x7fff6f1aa780, args=..., parent=0x0,
> this=0x2f01460) at ../../kdecore/services/kservice.h:528
> #15 Plasma::PluginLoader::loadApplet (this=<optimized out>, name=...,
> appletId=<optimized out>, args=<optimized out>) at
> ../../plasma/pluginloader.cpp:151
> #16 0x00007f65e100fab7 in Plasma::ContainmentPrivate::addApplet
> (this=0x10f2c10, name=..., args=..., appletGeometry=..., id=0, delayInit=false)
> at ../../plasma/containment.cpp:2217
> #17 0x00007f65e01c1a57 in Plasma::WidgetExplorer::addApplet (this=0x2ea8e30,
> appletItem=0x2ee23a0) at
> ../../../libs/plasmagenericshell/widgetsexplorer/widgetexplorer.cpp:378
> #18 0x00007f65e01c37e4 in Plasma::WidgetExplorer::qt_metacall (this=0x2ea8e30,
> _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff6f1aab90) at
> ./widgetexplorer.moc:91
> #19 0x00007f65de6cdeba in QMetaObject::activate (sender=0x32c2940, m=<optimized
> out>, local_signal_index=<optimized out>, argv=0x7fff6f1aab90) at
> kernel/qobject.cpp:3278
> #20 0x00007f65e019485f in AppletsListWidget::appletDoubleClicked
> (this=<optimized out>, _t1=0x2ee23a0) at moc_appletslist.cpp:119
> #21 0x00007f65e0194964 in AppletsListWidget::qt_metacall (this=0x32c2940,
> _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff6f1aaca0) at
> moc_appletslist.cpp:99
> #22 0x00007f65de6cdeba in QMetaObject::activate (sender=0x1964660, m=<optimized
> out>, local_signal_index=<optimized out>, argv=0x7fff6f1aaca0) at
> kernel/qobject.cpp:3278
> #23 0x00007f65e0195362 in Plasma::AbstractIcon::doubleClicked (this=<optimized
> out>, _t1=0x1964660) at moc_abstracticon.cpp:164
> #24 0x00007f65de0327cc in QGraphicsItem::sceneEvent (this=0x1964670,
> event=0x7fff6f1ab400) at graphicsview/qgraphicsitem.cpp:6733
> #25 0x00007f65de05ac2a in QGraphicsScenePrivate::sendMouseEvent
> (this=0x1012700, mouseEvent=0x7fff6f1ab400) at
> graphicsview/qgraphicsscene.cpp:1291
> #26 0x00007f65de05fc44 in QGraphicsScenePrivate::mousePressEventHandler
> (this=0x1012700, mouseEvent=0x7fff6f1ab400) at
> graphicsview/qgraphicsscene.cpp:1418
> #27 0x00007f65de06984f in QGraphicsScene::event (this=0x1012240,
> event=0x7fff6f1ab400) at graphicsview/qgraphicsscene.cpp:3456
> #28 0x00007f65dda6b424 in notify_helper (e=0x7fff6f1ab400, receiver=0x1012240,
> this=0xf2b250) at kernel/qapplication.cpp:4486
> #29 QApplicationPrivate::notify_helper (this=0xf2b250, receiver=0x1012240,
> e=0x7fff6f1ab400) at kernel/qapplication.cpp:4458
> #30 0x00007f65dda70291 in QApplication::notify (this=0xf19cd0,
> receiver=0x1012240, e=0x7fff6f1ab400) at kernel/qapplication.cpp:4365
> #31 0x00007f65df369126 in KApplication::notify (this=0xf19cd0,
> receiver=0x1012240, event=0x7fff6f1ab400) at
> ../../kdeui/kernel/kapplication.cpp:311
> #32 0x00007f65de6baafc in QCoreApplication::notifyInternal (this=0xf19cd0,
> receiver=0x1012240, event=0x7fff6f1ab400) at kernel/qcoreapplication.cpp:787
> #33 0x00007f65de07f3b9 in QGraphicsView::mouseDoubleClickEvent (this=0x2a926f0,
> event=0x7fff6f1abbc0) at graphicsview/qgraphicsview.cpp:3120
> #34 0x00007f65ddabbcb4 in QWidget::event (this=0x2a926f0, event=0x7fff6f1abbc0)
> at kernel/qwidget.cpp:8299
> #35 0x00007f65dde644f6 in QFrame::event (this=0x2a926f0, e=0x7fff6f1abbc0) at
> widgets/qframe.cpp:557
> #36 0x00007f65de087d3b in QGraphicsView::viewportEvent (this=0x2a926f0,
> event=0x7fff6f1abbc0) at graphicsview/qgraphicsview.cpp:2864
> #37 0x00007f65de6bac88 in
> QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>,
> receiver=0x2ab94a0, event=0x7fff6f1abbc0) at kernel/qcoreapplication.cpp:902
> #38 0x00007f65dda6b3ef in notify_helper (e=0x7fff6f1abbc0, receiver=0x2ab94a0,
> this=0xf2b250) at kernel/qapplication.cpp:4482
> #39 QApplicationPrivate::notify_helper (this=0xf2b250, receiver=0x2ab94a0,
> e=0x7fff6f1abbc0) at kernel/qapplication.cpp:4458
> #40 0x00007f65dda70c6b in QApplication::notify (this=<optimized out>,
> receiver=0x2ab94a0, e=0x7fff6f1abbc0) at kernel/qapplication.cpp:4047
> #41 0x00007f65df369126 in KApplication::notify (this=0xf19cd0,
> receiver=0x2ab94a0, event=0x7fff6f1abbc0) at
> ../../kdeui/kernel/kapplication.cpp:311
> #42 0x00007f65de6baafc in QCoreApplication::notifyInternal (this=0xf19cd0,
> receiver=0x2ab94a0, event=0x7fff6f1abbc0) at kernel/qcoreapplication.cpp:787
> #43 0x00007f65dda6c3f2 in sendEvent (event=<optimized out>, receiver=<optimized
> out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
> #44 QApplicationPrivate::sendMouseEvent (receiver=0x2ab94a0,
> event=0x7fff6f1abbc0, alienWidget=0x2ab94a0, nativeWidget=0x30c0ce0,
> buttonDown=0x2ab94a0, lastMouseReceiver=..., spontaneous=true) at
> kernel/qapplication.cpp:3146
> #45 0x00007f65ddaeb945 in QETWidget::translateMouseEvent (this=0x30c0ce0,
> event=<optimized out>) at kernel/qapplication_x11.cpp:4568
> #46 0x00007f65ddaea8be in QApplication::x11ProcessEvent (this=0xf19cd0,
> event=0x7fff6f1ac3e0) at kernel/qapplication_x11.cpp:3690
> #47 0x00007f65ddb13412 in x11EventSourceDispatch (s=0xf27b90, callback=0,
> user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
> #48 0x00007f65d5a7ea5d in g_main_context_dispatch () from
> /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #49 0x00007f65d5a7f258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #50 0x00007f65d5a7f429 in g_main_context_iteration () from
> /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #51 0x00007f65de6e5ed6 in QEventDispatcherGlib::processEvents (this=0xea0f40,
> flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
> #52 0x00007f65ddb1307e in QGuiEventDispatcherGlib::processEvents
> (this=<optimized out>, flags=<optimized out>) at
> kernel/qguieventdispatcher_glib.cpp:204
> #53 0x00007f65de6b9cf2 in QEventLoop::processEvents (this=<optimized out>,
> flags=...) at kernel/qeventloop.cpp:149
> #54 0x00007f65de6b9ef7 in QEventLoop::exec (this=0x7fff6f1ac7b0, flags=...) at
> kernel/qeventloop.cpp:201
> #55 0x00007f65de6be789 in QCoreApplication::exec () at
> kernel/qcoreapplication.cpp:1064
> #56 0x00007f65e17fe1a3 in kdemain (argc=1, argv=0x7fff6f1acb98) at
> ../../../../plasma/desktop/shell/main.cpp:120
> #57 0x00007f65e143f30d in __libc_start_main (main=0x400640 <main(int, char**)>,
> argc=1, ubp_av=0x7fff6f1acb98, init=<optimized out>, fini=<optimized out>,
> rtld_fini=<optimized out>, stack_end=0x7fff6f1acb88) at libc-start.c:226
> #58 0x0000000000400671 in _start ()