Bug 346226

Application: plasma-desktop (4.11.16)
KDE Platform Version: 4.14.6
Qt Version: 4.8.6
Operating System: Linux 3.19.3-200.fc21.x86_64 x86_64
Distribution: "Fedora release 21 (Twenty One)"

-- Information about the crash:
I was not at my system when this happened. Firefox latest was running. ls -alR was running. Other "normal" processes for Fedora 21 x86_64 were running. System had just been booted.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/usr/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f032dc9b880 (LWP 3734))]

Thread 4 (Thread 0x7f02f8948700 (LWP 3735)):
#0  0x00007f032c250590 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib64/libpthread.so.0
#1  0x00007f0315ac149a in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /usr/lib64/libQtScript.so.4
#2  0x00007f0315ac14c9 in  () at /usr/lib64/libQtScript.so.4
#3  0x00007f032c24b52a in start_thread () at /usr/lib64/libpthread.so.0
#4  0x00007f032a81322d in clone () at /usr/lib64/libc.so.6

Thread 3 (Thread 0x7f027173a700 (LWP 3736)):
#0  0x00007f032a807c8d in poll () at /usr/lib64/libc.so.6
#1  0x00007f0326ef0b34 in g_main_context_iterate.isra () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f0326ef0c4c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f032c6154be in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#4  0x00007f032c5e4cc1 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#5  0x00007f032c5e5025 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#6  0x00007f032c4d9b49 in QThread::exec() () at /usr/lib64/libQtCore.so.4
#7  0x00007f032c5c5623 in QInotifyFileSystemWatcherEngine::run() () at /usr/lib64/libQtCore.so.4
#8  0x00007f032c4dc3af in QThreadPrivate::start(void*) () at /usr/lib64/libQtCore.so.4
#9  0x00007f032c24b52a in start_thread () at /usr/lib64/libpthread.so.0
#10 0x00007f032a81322d in clone () at /usr/lib64/libc.so.6

Thread 2 (Thread 0x7f026bfff700 (LWP 3737)):
#0  0x00007f032a807c8d in poll () at /usr/lib64/libc.so.6
#1  0x00007f0326ef0b34 in g_main_context_iterate.isra () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f0326ef0c4c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f032c6154be in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#4  0x00007f032c5e4cc1 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#5  0x00007f032c5e5025 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#6  0x00007f032c4d9b49 in QThread::exec() () at /usr/lib64/libQtCore.so.4
#7  0x00007f032c5c5623 in QInotifyFileSystemWatcherEngine::run() () at /usr/lib64/libQtCore.so.4
#8  0x00007f032c4dc3af in QThreadPrivate::start(void*) () at /usr/lib64/libQtCore.so.4
#9  0x00007f032c24b52a in start_thread () at /usr/lib64/libpthread.so.0
#10 0x00007f032a81322d in clone () at /usr/lib64/libc.so.6

Thread 1 (Thread 0x7f032dc9b880 (LWP 3734)):
[KCrash Handler]
#6  0x00007f032c5faa17 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /usr/lib64/libQtCore.so.4
#7  0x00007f02635c06af in PackageKit::Transaction::finished(PackageKit::Transaction::Exit, unsigned int) () at /usr/lib64/libpackagekitqt4.so.0
#8  0x00007f02635c20cd in PackageKit::TransactionPrivate::finished(unsigned int, unsigned int) () at /usr/lib64/libpackagekitqt4.so.0
#9  0x00007f02635c2202 in PackageKit::TransactionPrivate::methodCallFinished(QDBusPendingCallWatcher*) () at /usr/lib64/libpackagekitqt4.so.0
#10 0x00007f02635c0f36 in PackageKit::Transaction::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () at /usr/lib64/libpackagekitqt4.so.0
#11 0x00007f032c5facdc in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /usr/lib64/libQtCore.so.4
#12 0x00007f032c9abe1f in QDBusPendingCallWatcher::finished(QDBusPendingCallWatcher*) () at /usr/lib64/libQtDBus.so.4
#13 0x00007f032c5ff3d1 in QObject::event(QEvent*) () at /usr/lib64/libQtCore.so.4
#14 0x00007f032b71defc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQtGui.so.4
#15 0x00007f032b724958 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQtGui.so.4
#16 0x00007f032d64cc6a in KApplication::notify(QObject*, QEvent*) () at /usr/lib64/libkdeui.so.5
#17 0x00007f032c5e616d in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQtCore.so.4
#18 0x00007f032c5e9431 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQtCore.so.4
#19 0x00007f032c61532e in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /usr/lib64/libQtCore.so.4
#20 0x00007f0326ef07fb in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#21 0x00007f0326ef0b98 in g_main_context_iterate.isra () at /usr/lib64/libglib-2.0.so.0
#22 0x00007f0326ef0c4c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#23 0x00007f032c61549e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#24 0x00007f032b7c1176 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtGui.so.4
#25 0x00007f032c5e4cc1 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#26 0x00007f032c5e5025 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#27 0x00007f032c5ea709 in QCoreApplication::exec() () at /usr/lib64/libQtCore.so.4
#28 0x00007f030bb155dd in kdemain () at /lib64/libkdeinit4_plasma-desktop.so
#29 0x000000000040825d in launch(int, char const*, char const*, char const*, int, char const*, bool, char const*, bool, char const*) ()
#30 0x00000000004090a9 in handle_launcher_request(int, char const*) [clone .isra.15] ()
#31 0x0000000000409787 in handle_requests(int) ()
#32 0x000000000040537d in main ()

Reported using DrKonqi