Application: systemsettings (4.11.18)
KDE Platform Version: 4.14.7
Qt Version: 4.8.6
Operating System: Linux 3.19.8-100.fc20.x86_64 x86_64
Distribution: "Fedora release 20 (Heisenbug)"

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

I was going through and configuring my system's settings, I clicked on the "Printers" module and it crashed.

-- Backtrace:
Application: System Settings (systemsettings), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f8923bb2940 (LWP 851))]

Thread 5 (Thread 0x7f88fa92e700 (LWP 874)):
#0  0x00007f892020cca0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f891ced4f0b in QTWTF::TCMalloc_PageHeap::scavengerThread() () from /lib64/libQtScript.so.4
#2  0x00007f891ced4f49 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /lib64/libQtScript.so.4
#3  0x00007f8920208ee5 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f891f712d1d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f8860da3700 (LWP 1473)):
#0  0x00007f892020cca0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f88634d39d3 in radeon_drm_cs_emit_ioctl () from /usr/lib64/dri/r600_dri.so
#2  0x00007f88634d3297 in impl_thrd_routine () from /usr/lib64/dri/r600_dri.so
#3  0x00007f8920208ee5 in start_thread () from /lib64/libpthread.so.0
#4  0x00007f891f712d1d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f8855ee4700 (LWP 1958)):
#0  0x00007f892020c17e in pthread_mutex_unlock () from /lib64/libpthread.so.0
#1  0x00007f89169345d1 in g_mutex_unlock () from /lib64/libglib-2.0.so.0
#2  0x00007f89168f2690 in g_main_context_acquire () from /lib64/libglib-2.0.so.0
#3  0x00007f89168f3465 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#4  0x00007f89168f36dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#5  0x00007f89205d34ee in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#6  0x00007f89205a343f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#7  0x00007f89205a378d in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#8  0x00007f8920497edf in QThread::exec() () from /lib64/libQtCore.so.4
#9  0x00007f8920583e93 in QInotifyFileSystemWatcherEngine::run() () from /lib64/libQtCore.so.4
#10 0x00007f892049a71f in QThreadPrivate::start(void*) () from /lib64/libQtCore.so.4
#11 0x00007f8920208ee5 in start_thread () from /lib64/libpthread.so.0
#12 0x00007f891f712d1d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f885dd21700 (LWP 1959)):
#0  0x00007f891f7088ad in poll () from /lib64/libc.so.6
#1  0x00007f89168f35b4 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007f89168f36dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007f89205d34ee in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#4  0x00007f89205a343f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#5  0x00007f89205a378d in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#6  0x00007f8920497edf in QThread::exec() () from /lib64/libQtCore.so.4
#7  0x00007f885eaacb17 in KCupsConnection::run() () from /lib64/libkcupslib.so
#8  0x00007f892049a71f in QThreadPrivate::start(void*) () from /lib64/libQtCore.so.4
#9  0x00007f8920208ee5 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f891f712d1d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f8923bb2940 (LWP 851)):
[KCrash Handler]
#5  0x00007f885eac1fc1 in PrinterModel::updateDest(QStandardItem*, KCupsPrinter const&) () from /lib64/libkcupslib.so
#6  0x00007f885eac38c2 in PrinterModel::getDestsFinished() () from /lib64/libkcupslib.so
#7  0x00007f89205bd9be in QObject::event(QEvent*) () from /lib64/libQtCore.so.4
#8  0x00007f8921238e6c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#9  0x00007f892123f7c5 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQtGui.so.4
#10 0x00007f89221f16ea in KApplication::notify(QObject*, QEvent*) () from /lib64/libkdeui.so.5
#11 0x00007f89205a49ad in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQtCore.so.4
#12 0x00007f89205a7b95 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /lib64/libQtCore.so.4
#13 0x00007f89205d3d4e in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQtCore.so.4
#14 0x00007f89168f32a6 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#15 0x00007f89168f3628 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#16 0x00007f89168f36dc in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#17 0x00007f89205d34ce in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#18 0x00007f89212dacd6 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtGui.so.4
#19 0x00007f89205a343f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#20 0x00007f89205a378d in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQtCore.so.4
#21 0x00007f89205a8e59 in QCoreApplication::exec() () from /lib64/libQtCore.so.4
#22 0x000000000040ab4e in main ()

Reported using DrKonqi