Bug 349947

Application: plasma-desktop (4.11.14)
KDE Platform Version: 4.11.5
Qt Version: 4.8.6
Operating System: Linux 3.14.27-100.fc19.x86_64 x86_64
Distribution: "Fedora release 19 (Schrödingerâs Cat)"

-- Information about the crash:
- What I was doing when the application crashed: I just open a flash drive copy a log to the flash drive, close it, 

an authentication screen pop, and I cancel it.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fb4771b48c0 (LWP 1252))]

Thread 4 (Thread 0x7fb45a087700 (LWP 1255)):
#0  0x00007fb476aa8575 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x000000399eb85ffb in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /lib64/libQtScript.so.4
#2  0x000000399eb86039 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /lib64/libQtScript.so.4
#3  0x00007fb476aa4c65 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fb475fb6b9d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7fb3d0d8d700 (LWP 1257)):
#0  0x00007fb476aa7a7c in pthread_mutex_unlock () from /lib64/libpthread.so.0
#1  0x00007fb4748c41c1 in g_mutex_unlock () from /lib64/libglib-2.0.so.0
#2  0x00007fb474884fc6 in g_main_context_iterate.isra.22 () from /lib64/libglib-2.0.so.0
#3  0x00007fb4748851bc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x0000003986ba93fe in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#5  0x0000003986b7b12f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#6  0x0000003986b7b425 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#7  0x0000003986a78d4f in QThread::exec() () from /lib64/libQtCore.so.4
#8  0x0000003986b5caa3 in QInotifyFileSystemWatcherEngine::run() () from /lib64/libQtCore.so.4
#9  0x0000003986a7b42f in QThreadPrivate::start(void*) () from /lib64/libQtCore.so.4
#10 0x00007fb476aa4c65 in start_thread () from /lib64/libpthread.so.0
#11 0x00007fb475fb6b9d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fb3cb39e700 (LWP 1258)):
#0  0x00007fb476aa7a7c in pthread_mutex_unlock () from /lib64/libpthread.so.0
#1  0x00007fb4748c41c1 in g_mutex_unlock () from /lib64/libglib-2.0.so.0
#2  0x00007fb474884b29 in g_main_context_check () from /lib64/libglib-2.0.so.0
#3  0x00007fb47488504b in g_main_context_iterate.isra.22 () from /lib64/libglib-2.0.so.0
#4  0x00007fb4748851bc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#5  0x0000003986ba93fe in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#6  0x0000003986b7b12f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#7  0x0000003986b7b425 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#8  0x0000003986a78d4f in QThread::exec() () from /lib64/libQtCore.so.4
#9  0x00007fb3d1d05257 in KCupsConnection::run() () from /lib64/libkcupslib.so
#10 0x0000003986a7b42f in QThreadPrivate::start(void*) () from /lib64/libQtCore.so.4
#11 0x00007fb476aa4c65 in start_thread () from /lib64/libpthread.so.0
#12 0x00007fb475fb6b9d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fb4771b48c0 (LWP 1252)):
[KCrash Handler]
#5  0x00000039897c3391 in QAction::data() const () from /lib64/libQtGui.so.4
#6  0x00007fb4628cea75 in GroupingPanel::contextualActions() () from /usr/lib64/kde4/plasma_containment_groupingpanel.so
#7  0x00007fb462ce0faf in ContextMenu::contextualActions() () from /usr/lib64/kde4/plasma_containmentactions_contextmenu.so
#8  0x000000399a925173 in Plasma::ContainmentPrivate::prepareContainmentActions(QString const&, QPoint const&, KMenu*) () from /lib64/libplasma.so.3
#9  0x000000399a9253be in Plasma::ContainmentPrivate::addContainmentActions(KMenu&, QEvent*) () from /lib64/libplasma.so.3
#10 0x000000399a92559a in Plasma::ContainmentPrivate::addAppletActions(KMenu&, Plasma::Applet*, QEvent*) () from /lib64/libplasma.so.3
#11 0x000000399a966278 in Plasma::PopupApplet::eventFilter(QObject*, QEvent*) () from /lib64/libplasma.so.3
#12 0x0000003986b7c6d6 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#13 0x00000039897c953c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#14 0x00000039897d0858 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#15 0x000000398ca3f63a in KApplication::notify(QObject*, QEvent*) () from /lib64/libkdeui.so.5
#16 0x0000003986b7c56d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#17 0x00000039898407f0 in QETWidget::translateMouseEvent(_XEvent const*) () from /lib64/libQtGui.so.4
#18 0x000000398983f20c in QApplication::x11ProcessEvent(_XEvent*) () from /lib64/libQtGui.so.4
#19 0x0000003989865cb4 in x11EventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQtGui.so.4
#20 0x00007fb474884dc6 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#21 0x00007fb474885118 in g_main_context_iterate.isra.22 () from /lib64/libglib-2.0.so.0
#22 0x00007fb4748851bc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#23 0x0000003986ba93de in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#24 0x0000003989865e26 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtGui.so.4
#25 0x0000003986b7b12f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#26 0x0000003986b7b425 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#27 0x0000003986b80829 in QCoreApplication::exec() () from /lib64/libQtCore.so.4
#28 0x000000399163c7b4 in kdemain () from /lib64/libkdeinit4_plasma-desktop.so
#29 0x00007fb475ee2b45 in __libc_start_main () from /lib64/libc.so.6
#30 0x0000000000400971 in _start ()

Reported using DrKonqi