Bug 331016

Application: systemsettings (4.12.2)
KDE Platform Version: 4.12.2
Qt Version: 4.8.6
Operating System: Linux 3.13.0-8-generic x86_64
Distribution: Ubuntu Trusty Tahr (development branch)

-- Information about the crash:
- What I was doing when the application crashed:
I've installed the kubuntu-driver-manager package. After installation I started Systemsettings >Driver Manager for Kubuntu. It worked well until I clicked on "refresh driver list" because Systemsetting crashed immediately

-- Backtrace:
Application: Systemeinstellungen (systemsettings), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f893bfb07c0 (LWP 8492))]

Thread 3 (Thread 0x7f891e6c6700 (LWP 8493)):
#0  0x00007f8938f9b74d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8931ee8d64 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8931ee8e6c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8939723836 in QEventDispatcherGlib::processEvents (this=0x7f89180008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:427
#4  0x00007f89396f509f in QEventLoop::processEvents (this=this@entry=0x7f891e6c5de0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f89396f5395 in QEventLoop::exec (this=this@entry=0x7f891e6c5de0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f89395f1c4f in QThread::exec (this=this@entry=0xd38b60) at thread/qthread.cpp:537
#7  0x00007f89396d6813 in QInotifyFileSystemWatcherEngine::run (this=0xd38b60) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f89395f431f in QThreadPrivate::start (arg=0xd38b60) at thread/qthread_unix.cpp:349
#9  0x00007f89323c2182 in start_thread (arg=0x7f891e6c6700) at pthread_create.c:312
#10 0x00007f8938fa8b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f891cede700 (LWP 8534)):
#0  0x00007f8931f2931a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f8931f29659 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8931ee85fb in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8931ee8cd2 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f8931ee908a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f891d3e4ff6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f8931f0dc35 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f89323c2182 in start_thread (arg=0x7f891cede700) at pthread_create.c:312
#8  0x00007f8938fa8b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f893bfb07c0 (LWP 8492)):
[KCrash Handler]
#6  Module::refreshDriverList (this=0x1174320) at /build/buildd/kubuntu-driver-manager-14.04ubuntu1/src/Module.cpp:207
#7  0x00007f893970a868 in QMetaObject::activate (sender=sender@entry=0xdd5b60, m=m@entry=0x7f893ae3a290 <QAbstractButton::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7fff5de25af0) at kernel/qobject.cpp:3539
#8  0x00007f893a9b30f2 in QAbstractButton::clicked (this=this@entry=0xdd5b60, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:219
#9  0x00007f893a7169f3 in QAbstractButtonPrivate::emitClicked (this=this@entry=0xfabf30) at widgets/qabstractbutton.cpp:548
#10 0x00007f893a717b63 in QAbstractButtonPrivate::click (this=this@entry=0xfabf30) at widgets/qabstractbutton.cpp:541
#11 0x00007f893a717c4c in QAbstractButton::mouseReleaseEvent (this=0xdd5b60, e=0x7fff5de25fe0) at widgets/qabstractbutton.cpp:1123
#12 0x00007f893a3b450a in QWidget::event (this=0xdd5b60, event=0x7fff5de25fe0) at kernel/qwidget.cpp:8376
#13 0x00007f893a364e2c in QApplicationPrivate::notify_helper (this=this@entry=0x9b6e00, receiver=receiver@entry=0xdd5b60, e=e@entry=0x7fff5de25fe0) at kernel/qapplication.cpp:4567
#14 0x00007f893a36b5dd in QApplication::notify (this=this@entry=0x7fff5de26830, receiver=receiver@entry=0xdd5b60, e=e@entry=0x7fff5de25fe0) at kernel/qapplication.cpp:4110
#15 0x00007f893b071aaa in KApplication::notify (this=0x7fff5de26830, receiver=0xdd5b60, event=0x7fff5de25fe0) at ../../kdeui/kernel/kapplication.cpp:311
#16 0x00007f89396f64cd in QCoreApplication::notifyInternal (this=0x7fff5de26830, receiver=receiver@entry=0xdd5b60, event=event@entry=0x7fff5de25fe0) at kernel/qcoreapplication.cpp:953
#17 0x00007f893a36ad93 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#18 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0xdd5b60, event=event@entry=0x7fff5de25fe0, alienWidget=alienWidget@entry=0xdd5b60, nativeWidget=nativeWidget@entry=0xabded0, buttonDown=buttonDown@entry=0x7f893ae4c578 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#19 0x00007f893a3df9cb in QETWidget::translateMouseEvent (this=this@entry=0xabded0, event=event@entry=0x7fff5de26360) at kernel/qapplication_x11.cpp:4634
#20 0x00007f893a3df269 in QApplication::x11ProcessEvent (this=0x7fff5de26830, event=event@entry=0x7fff5de26360) at kernel/qapplication_x11.cpp:3627
#21 0x00007f893a406b02 in x11EventSourceDispatch (s=0x9a72a0, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#22 0x00007f8931ee8b84 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f8931ee8dc8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f8931ee8e6c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f8939723815 in QEventDispatcherGlib::processEvents (this=0x95baf0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#26 0x00007f893a406bb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x00007f89396f509f in QEventLoop::processEvents (this=this@entry=0x7fff5de26730, flags=...) at kernel/qeventloop.cpp:149
#28 0x00007f89396f5395 in QEventLoop::exec (this=this@entry=0x7fff5de26730, flags=...) at kernel/qeventloop.cpp:204
#29 0x00007f89396fab69 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#30 0x00007f893a36337c in QApplication::exec () at kernel/qapplication.cpp:3828
#31 0x000000000040aadb in main (argc=5, argv=0x7fff5de26978) at ../../../systemsettings/app/main.cpp:49

Reported using DrKonqi