Application: plasmashell (5.4.1)

Qt Version: 5.5.0
Operating System: Linux 4.1.7-200.fc22.x86_64 x86_64
Distribution: "Fedora release 22 (Twenty Two)"

-- Information about the crash:
- What I was doing when the application crashed:

KDE was giving me some weird trouble with a multi-monitor setup, so I decided to start from a clean configuration and deleted ~/.kde before logging in again. 

- Unusual behavior I noticed:

Plasma crashed without apparently doing anything at all, starting from a clean config

- Custom settings of the application:

~/.kde was deleted just prior to the crash so everything should have been set to the defaults

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7efdad5af900 (LWP 2780))]

Thread 7 (Thread 0x7efd86b3b700 (LWP 2812)):
#0  0x00007efda5bcf4ba in QMutex::lock() () at /lib64/libQt5Core.so.5
#1  0x00007efda5e0d32f in postEventSourcePrepare(_GSource*, int*) () at /lib64/libQt5Core.so.5
#2  0x00007efda017e35d in g_main_context_prepare () at /lib64/libglib-2.0.so.0
#3  0x00007efda017eceb in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#4  0x00007efda017eecc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#5  0x00007efda5e0ddab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007efda5db4daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#7  0x00007efda5bd15a4 in QThread::exec() () at /lib64/libQt5Core.so.5
#8  0x00007efda9e97245 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#9  0x00007efda5bd654e in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#10 0x00007efda3c7a555 in start_thread () at /lib64/libpthread.so.0
#11 0x00007efda4fd5b9d in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7efd7e157700 (LWP 2899)):
#0  0x00007efda5e0d4c0 in timerSourceCheck(_GSource*) () at /lib64/libQt5Core.so.5
#1  0x00007efda017e801 in g_main_context_check () at /lib64/libglib-2.0.so.0
#2  0x00007efda017ed60 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007efda017eecc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007efda5e0ddab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007efda5db4daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007efda5bd15a4 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007efda9e97245 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#8  0x00007efda5bd654e in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007efda3c7a555 in start_thread () at /lib64/libpthread.so.0
#10 0x00007efda4fd5b9d in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7efd77fff700 (LWP 2904)):
#0  0x00007efda4fca2fd in poll () at /lib64/libc.so.6
#1  0x00007efda017edbc in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007efda017eecc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007efda5e0ddab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007efda5db4daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007efda5bd15a4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007efda9e97245 in QQmlThreadPrivate::run() () at /lib64/libQt5Qml.so.5
#7  0x00007efda5bd654e in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007efda3c7a555 in start_thread () at /lib64/libpthread.so.0
#9  0x00007efda4fd5b9d in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7efd76bd6700 (LWP 2907)):
#0  0x00007efda3c7f540 in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007efdaccd0494 in QTWTF::TCMalloc_PageHeap::scavengerThread() () at /lib64/libQt5Script.so.5
#2  0x00007efdaccd04d9 in  () at /lib64/libQt5Script.so.5
#3  0x00007efda3c7a555 in start_thread () at /lib64/libpthread.so.0
#4  0x00007efda4fd5b9d in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7efcee8b2700 (LWP 2909)):
#0  0x00007efda01c3ec9 in g_mutex_lock () at /lib64/libglib-2.0.so.0
#1  0x00007efda017e80c in g_main_context_check () at /lib64/libglib-2.0.so.0
#2  0x00007efda017ed60 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#3  0x00007efda017eecc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#4  0x00007efda5e0ddab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007efda5db4daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#6  0x00007efda5bd15a4 in QThread::exec() () at /lib64/libQt5Core.so.5
#7  0x00007efdaaa39616 in QQuickPixmapReader::run() () at /lib64/libQt5Quick.so.5
#8  0x00007efda5bd654e in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#9  0x00007efda3c7a555 in start_thread () at /lib64/libpthread.so.0
#10 0x00007efda4fd5b9d in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7efce2fef700 (LWP 2914)):
#0  0x00007efda4fca2fd in poll () at /lib64/libc.so.6
#1  0x00007efda017edbc in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#2  0x00007efda017eecc in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#3  0x00007efda5e0ddab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#4  0x00007efda5db4daa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#5  0x00007efda5bd15a4 in QThread::exec() () at /lib64/libQt5Core.so.5
#6  0x00007efce4c3e397 in KCupsConnection::run() () at /lib64/libkcupslib.so
#7  0x00007efda5bd654e in QThreadPrivate::start(void*) () at /lib64/libQt5Core.so.5
#8  0x00007efda3c7a555 in start_thread () at /lib64/libpthread.so.0
#9  0x00007efda4fd5b9d in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7efdad5af900 (LWP 2780)):
[KCrash Handler]
#5  0x00007efda5c5f993 in QtSharedPointer::ExternalRefCountData::getAndRef(QObject const*) () at /lib64/libQt5Core.so.5
#6  0x00007efda9dd1892 in QV4::QObjectWrapper::create(QV4::ExecutionEngine*, QObject*) () at /lib64/libQt5Qml.so.5
#7  0x00007efda9dd2a9b in QV4::QObjectWrapper::wrap(QV4::ExecutionEngine*, QObject*) () at /lib64/libQt5Qml.so.5
#8  0x00007efda9d5707c in QV4::ExecutionEngine::fromVariant(QVariant const&) () at /lib64/libQt5Qml.so.5
#9  0x00007efda9e87219 in QV4::QmlContextWrapper::get(QV4::Managed*, QV4::String*, bool*) () at /lib64/libQt5Qml.so.5
#10 0x00007efda9d5e983 in QV4::ExecutionContext::getProperty(QV4::String*) () at /lib64/libQt5Qml.so.5
#11 0x00007efda9de9d67 in QV4::Runtime::getActivationProperty(QV4::ExecutionEngine*, int) () at /lib64/libQt5Qml.so.5
#12 0x00007efcecb2b7cd in  ()
#13 0x0000000000000000 in  ()

Reported using DrKonqi