Application: systemsettings5 (5.8.5)

Qt Version: 5.7.1
Frameworks Version: 5.29.0
Operating System: Linux 4.8.15-300.fc25.x86_64 x86_64
Distribution: "Fedora release 25 (Twenty Five)"

-- Information about the crash:
I was updating settings and had just poked apply for the "Widget Decorations" section.

This problem seems to be readily re-creatable...

The crash can be reproduced sometimes.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Aborted
Using host libthread_db library "/usr/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f3994ad8900 (LWP 20957))]

Thread 15 (Thread 0x7f392ddd2700 (LWP 21015)):
#0  0x00007f39a06a701d in poll () at /usr/lib64/libc.so.6
#1  0x00007f399950b156 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f39380231a0, timeout=<optimized out>, context=0x7f393803d7e0) at gmain.c:4228
#2  0x00007f399950b156 in g_main_context_iterate (context=context@entry=0x7f393803d7e0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3924
#3  0x00007f399950b26c in g_main_context_iteration (context=0x7f393803d7e0, may_block=1) at gmain.c:3990
#4  0x00007f39a14af73b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f39a146073a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f39a12bd5f3 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007f399fe6c4e5 in QQmlThreadPrivate::run() () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f39a12c19da in QThreadPrivate::start(void*) () at /usr/lib64/libQt5Core.so.5
#9  0x00007f399d7546ca in start_thread () at /usr/lib64/libpthread.so.0
#10 0x00007f39a06b2f7f in clone () at /usr/lib64/libc.so.6

Thread 14 (Thread 0x7f3945def700 (LWP 21011)):
#0  0x00007f39995507f9 in g_mutex_lock (mutex=mutex@entry=0x7f3934002800) at gthread-posix.c:1336
#1  0x00007f399950ad06 in g_main_context_dispatch (context=context@entry=0x7f3934002800) at gmain.c:3850
#2  0x00007f399950b1c0 in g_main_context_iterate (context=context@entry=0x7f3934002800, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3929
#3  0x00007f399950b26c in g_main_context_iteration (context=0x7f3934002800, may_block=1) at gmain.c:3990
#4  0x00007f39a14af73b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f39a146073a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f39a12bd5f3 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007f399fe6c4e5 in QQmlThreadPrivate::run() () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f39a12c19da in QThreadPrivate::start(void*) () at /usr/lib64/libQt5Core.so.5
#9  0x00007f399d7546ca in start_thread () at /usr/lib64/libpthread.so.0
#10 0x00007f39a06b2f7f in clone () at /usr/lib64/libc.so.6

Thread 13 (Thread 0x7f3947df1700 (LWP 21008)):
#0  0x00007f39a06a2bed in read () at /usr/lib64/libc.so.6
#1  0x00007f399954f450 in read (__nbytes=16, __buf=0x7f3947df0a80, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  0x00007f399954f450 in g_wakeup_acknowledge (wakeup=0x561dd559e6a0) at gwakeup.c:210
#3  0x00007f399950ac60 in g_main_context_check (context=context@entry=0x7f393c001e00, max_priority=2147483647, fds=fds@entry=0x7f393c001c60, n_fds=n_fds@entry=1) at gmain.c:3707
#4  0x00007f399950b0f4 in g_main_context_iterate (context=context@entry=0x7f393c001e00, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3926
#5  0x00007f399950b26c in g_main_context_iteration (context=0x7f393c001e00, may_block=1) at gmain.c:3990
#6  0x00007f39a14af73b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007f39a146073a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#8  0x00007f39a12bd5f3 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#9  0x00007f399fe6c4e5 in QQmlThreadPrivate::run() () at /usr/lib64/libQt5Qml.so.5
#10 0x00007f39a12c19da in QThreadPrivate::start(void*) () at /usr/lib64/libQt5Core.so.5
#11 0x00007f399d7546ca in start_thread () at /usr/lib64/libpthread.so.0
#12 0x00007f39a06b2f7f in clone () at /usr/lib64/libc.so.6

Thread 12 (Thread 0x7f3946df0700 (LWP 21007)):
#0  0x00007f3999508260 in g_source_iter_clear (iter=iter@entry=0x7f3946defae0) at gmain.c:995
#1  0x00007f399950a768 in g_main_context_prepare (context=context@entry=0x7f3930003400, priority=priority@entry=0x7f3946defb60) at gmain.c:3565
#2  0x00007f399950b07b in g_main_context_iterate (context=context@entry=0x7f3930003400, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3909
#3  0x00007f399950b26c in g_main_context_iteration (context=0x7f3930003400, may_block=1) at gmain.c:3990
#4  0x00007f39a14af73b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f39a146073a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f39a12bd5f3 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007f399fe6c4e5 in QQmlThreadPrivate::run() () at /usr/lib64/libQt5Qml.so.5
#8  0x00007f39a12c19da in QThreadPrivate::start(void*) () at /usr/lib64/libQt5Core.so.5
#9  0x00007f399d7546ca in start_thread () at /usr/lib64/libpthread.so.0
#10 0x00007f39a06b2f7f in clone () at /usr/lib64/libc.so.6

Thread 11 (Thread 0x7f396e77a700 (LWP 20969)):
#0  0x00007f399d75a460 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib64/libpthread.so.0
#1  0x00007f397d4ee923 in thread_function () at /usr/lib64/dri/swrast_dri.so
#2  0x00007f397d4ee787 in impl_thrd_routine () at /usr/lib64/dri/swrast_dri.so
#3  0x00007f399d7546ca in start_thread () at /usr/lib64/libpthread.so.0
#4  0x00007f39a06b2f7f in clone () at /usr/lib64/libc.so.6

Thread 10 (Thread 0x7f396f77b700 (LWP 20968)):
#0  0x00007f399d75a460 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib64/libpthread.so.0
#1  0x00007f397d4ee923 in thread_function () at /usr/lib64/dri/swrast_dri.so
#2  0x00007f397d4ee787 in impl_thrd_routine () at /usr/lib64/dri/swrast_dri.so
#3  0x00007f399d7546ca in start_thread () at /usr/lib64/libpthread.so.0
#4  0x00007f39a06b2f7f in clone () at /usr/lib64/libc.so.6

Thread 9 (Thread 0x7f397077c700 (LWP 20967)):
#0  0x00007f399d75a460 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib64/libpthread.so.0
#1  0x00007f397d4ee923 in thread_function () at /usr/lib64/dri/swrast_dri.so
#2  0x00007f397d4ee787 in impl_thrd_routine () at /usr/lib64/dri/swrast_dri.so
#3  0x00007f399d7546ca in start_thread () at /usr/lib64/libpthread.so.0
#4  0x00007f39a06b2f7f in clone () at /usr/lib64/libc.so.6

Thread 8 (Thread 0x7f397177d700 (LWP 20966)):
#0  0x00007f399d75a460 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib64/libpthread.so.0
#1  0x00007f397d4ee923 in thread_function () at /usr/lib64/dri/swrast_dri.so
#2  0x00007f397d4ee787 in impl_thrd_routine () at /usr/lib64/dri/swrast_dri.so
#3  0x00007f399d7546ca in start_thread () at /usr/lib64/libpthread.so.0
#4  0x00007f39a06b2f7f in clone () at /usr/lib64/libc.so.6

Thread 7 (Thread 0x7f397277e700 (LWP 20965)):
#0  0x00007f399d75a460 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib64/libpthread.so.0
#1  0x00007f397d4ee923 in thread_function () at /usr/lib64/dri/swrast_dri.so
#2  0x00007f397d4ee787 in impl_thrd_routine () at /usr/lib64/dri/swrast_dri.so
#3  0x00007f399d7546ca in start_thread () at /usr/lib64/libpthread.so.0
#4  0x00007f39a06b2f7f in clone () at /usr/lib64/libc.so.6

Thread 6 (Thread 0x7f397377f700 (LWP 20964)):
#0  0x00007f399d75a460 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib64/libpthread.so.0
#1  0x00007f397d4ee923 in thread_function () at /usr/lib64/dri/swrast_dri.so
#2  0x00007f397d4ee787 in impl_thrd_routine () at /usr/lib64/dri/swrast_dri.so
#3  0x00007f399d7546ca in start_thread () at /usr/lib64/libpthread.so.0
#4  0x00007f39a06b2f7f in clone () at /usr/lib64/libc.so.6

Thread 5 (Thread 0x7f3974780700 (LWP 20963)):
#0  0x00007f399d75a460 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib64/libpthread.so.0
#1  0x00007f397d4ee923 in thread_function () at /usr/lib64/dri/swrast_dri.so
#2  0x00007f397d4ee787 in impl_thrd_routine () at /usr/lib64/dri/swrast_dri.so
#3  0x00007f399d7546ca in start_thread () at /usr/lib64/libpthread.so.0
#4  0x00007f39a06b2f7f in clone () at /usr/lib64/libc.so.6

Thread 4 (Thread 0x7f3975781700 (LWP 20962)):
#0  0x00007f399d75a460 in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib64/libpthread.so.0
#1  0x00007f397d4ee923 in thread_function () at /usr/lib64/dri/swrast_dri.so
#2  0x00007f397d4ee787 in impl_thrd_routine () at /usr/lib64/dri/swrast_dri.so
#3  0x00007f399d7546ca in start_thread () at /usr/lib64/libpthread.so.0
#4  0x00007f39a06b2f7f in clone () at /usr/lib64/libc.so.6

Thread 3 (Thread 0x7f3980ba5700 (LWP 20960)):
#0  0x00007f39995507f9 in g_mutex_lock (mutex=mutex@entry=0x7f3978000990) at gthread-posix.c:1336
#1  0x00007f399950a577 in g_main_context_prepare (context=context@entry=0x7f3978000990, priority=priority@entry=0x7f3980ba4b40) at gmain.c:3439
#2  0x00007f399950b07b in g_main_context_iterate (context=context@entry=0x7f3978000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3909
#3  0x00007f399950b26c in g_main_context_iteration (context=0x7f3978000990, may_block=1) at gmain.c:3990
#4  0x00007f39a14af73b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#5  0x00007f39a146073a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f39a12bd5f3 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#7  0x00007f39a538c739 in QDBusConnectionManager::run() () at /usr/lib64/libQt5DBus.so.5
#8  0x00007f39a12c19da in QThreadPrivate::start(void*) () at /usr/lib64/libQt5Core.so.5
#9  0x00007f399d7546ca in start_thread () at /usr/lib64/libpthread.so.0
#10 0x00007f39a06b2f7f in clone () at /usr/lib64/libc.so.6

Thread 2 (Thread 0x7f39897a5700 (LWP 20959)):
#0  0x00007f39a06a701d in poll () at /usr/lib64/libc.so.6
#1  0x00007f399dd95d10 in poll (__timeout=-1, __nfds=1, __fds=0x7f39897a4bc0) at /usr/include/bits/poll2.h:46
#2  0x00007f399dd95d10 in _xcb_conn_wait (c=c@entry=0x561dd33f6f90, cond=cond@entry=0x561dd33f6fd0, vector=vector@entry=0x0, count=count@entry=0x0) at xcb_conn.c:479
#3  0x00007f399dd97aa9 in xcb_wait_for_event (c=0x561dd33f6f90) at xcb_in.c:693
#4  0x00007f398de6ed69 in QXcbEventReader::run() () at /usr/lib64/libQt5XcbQpa.so.5
#5  0x00007f39a12c19da in QThreadPrivate::start(void*) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f399d7546ca in start_thread () at /usr/lib64/libpthread.so.0
#7  0x00007f39a06b2f7f in clone () at /usr/lib64/libc.so.6

Thread 1 (Thread 0x7f3994ad8900 (LWP 20957)):
[KCrash Handler]
#6  0x00007f39a05e091f in raise () at /usr/lib64/libc.so.6
#7  0x00007f39a05e251a in abort () at /usr/lib64/libc.so.6
#8  0x00007f39a0624200 in __libc_message () at /usr/lib64/libc.so.6
#9  0x00007f39a062f8e8 in _int_malloc () at /usr/lib64/libc.so.6
#10 0x00007f39a0630f14 in malloc () at /usr/lib64/libc.so.6
#11 0x00007f39a12c239c in QArrayData::allocate(unsigned long, unsigned long, unsigned long, QFlags<QArrayData::AllocationOption>) () at /usr/lib64/libQt5Core.so.5
#12 0x00007f39a133afa6 in QString::QString(QChar const*, int) () at /usr/lib64/libQt5Core.so.5
#13 0x00007f39a133b143 in QString::mid(int, int) const () at /usr/lib64/libQt5Core.so.5
#14 0x00007f39a13f77a2 in QFileSystemEntry::fileName() const () at /usr/lib64/libQt5Core.so.5
#15 0x00007f39a13a3596 in QDirIteratorPrivate::advance() () at /usr/lib64/libQt5Core.so.5
#16 0x00007f39a13a3c23 in QDirIteratorPrivate::QDirIteratorPrivate(QFileSystemEntry const&, QStringList const&, QFlags<QDir::Filter>, QFlags<QDirIterator::IteratorFlag>, bool) () at /usr/lib64/libQt5Core.so.5
#17 0x00007f39a13a44ac in QDirIterator::QDirIterator(QString const&, QStringList const&, QFlags<QDir::Filter>, QFlags<QDirIterator::IteratorFlag>) () at /usr/lib64/libQt5Core.so.5
#18 0x00007f39a139d67d in QDir::entryInfoList(QStringList const&, QFlags<QDir::Filter>, QFlags<QDir::SortFlag>) const () at /usr/lib64/libQt5Core.so.5
#19 0x00007f39a139ddbf in QDir::entryInfoList(QFlags<QDir::Filter>, QFlags<QDir::SortFlag>) const () at /usr/lib64/libQt5Core.so.5
#20 0x00007f39a209009e in bool KSycocaUtilsPrivate::visitResourceDirectoryHelper<TimestampChecker::checkTimestamps(QMap<QString, long long> const&)::{lambda(QFileInfo const&)#1}>(QString const&, TimestampChecker::checkTimestamps(QMap<QString, long long> const&)::{lambda(QFileInfo const&)#1}) () at /usr/lib64/libKF5Service.so.5
#21 0x00007f39a20901ae in bool KSycocaUtilsPrivate::visitResourceDirectoryHelper<TimestampChecker::checkTimestamps(QMap<QString, long long> const&)::{lambda(QFileInfo const&)#1}>(QString const&, TimestampChecker::checkTimestamps(QMap<QString, long long> const&)::{lambda(QFileInfo const&)#1}) () at /usr/lib64/libKF5Service.so.5
#22 0x00007f39a2090acb in bool KSycocaUtilsPrivate::visitResourceDirectory<TimestampChecker::checkTimestamps(QMap<QString, long long> const&)::{lambda(QFileInfo const&)#1}>(QString const&, TimestampChecker::checkTimestamps(QMap<QString, long long> const&)::{lambda(QFileInfo const&)#1}) () at /usr/lib64/libKF5Service.so.5
#23 0x00007f39a208d292 in KSycocaPrivate::needsRebuild() () at /usr/lib64/libKF5Service.so.5
#24 0x00007f39a208d3c9 in KSycocaPrivate::checkDirectories() () at /usr/lib64/libKF5Service.so.5
#25 0x00007f39a208d86c in KSycoca::ensureCacheValid() () at /usr/lib64/libKF5Service.so.5
#26 0x00007f39a206e6c9 in KServiceType::serviceType(QString const&) () at /usr/lib64/libKF5Service.so.5
#27 0x00007f39a205ad3d in KService::hasServiceType(QString const&) const () at /usr/lib64/libKF5Service.so.5
#28 0x00007f39a5148c6f in ModuleView::addModule(KCModuleInfo*) () at /usr/lib64/libsystemsettingsview.so.3
#29 0x00007f39a51491c5 in ModuleView::loadModule(QModelIndex) () at /usr/lib64/libsystemsettingsview.so.3
#30 0x00007f396d0e9e45 in ClassicMode::changeModule(QModelIndex const&) () at /usr/lib64/qt5/plugins/classic_mode.so
#31 0x00007f39a1488ae6 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib64/libQt5Core.so.5
#32 0x00007f39a2b284e5 in QAbstractItemView::activated(QModelIndex const&) () at /usr/lib64/libQt5Widgets.so.5
#33 0x00007f39a2b2ba2e in QAbstractItemView::mouseReleaseEvent(QMouseEvent*) () at /usr/lib64/libQt5Widgets.so.5
#34 0x00007f39a2b75c5b in QTreeView::mouseReleaseEvent(QMouseEvent*) () at /usr/lib64/libQt5Widgets.so.5
#35 0x00007f39a2925780 in QWidget::event(QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#36 0x00007f39a2a0e0ae in QFrame::event(QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#37 0x00007f39a2b35853 in QAbstractItemView::viewportEvent(QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#38 0x00007f39a2b753cc in QTreeView::viewportEvent(QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#39 0x00007f39a1461592 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#40 0x00007f39a28ddea5 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#41 0x00007f39a28e652d in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#42 0x00007f39a14617aa in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#43 0x00007f39a28e4bbd in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () at /usr/lib64/libQt5Widgets.so.5
#44 0x00007f39a293ff06 in QWidgetWindow::handleMouseEvent(QMouseEvent*) () at /usr/lib64/libQt5Widgets.so.5
#45 0x00007f39a2942963 in QWidgetWindow::event(QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#46 0x00007f39a28ddecc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#47 0x00007f39a28e5671 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQt5Widgets.so.5
#48 0x00007f39a14617aa in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib64/libQt5Core.so.5
#49 0x00007f39a23d42b3 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /usr/lib64/libQt5Gui.so.5
#50 0x00007f39a23d5d85 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib64/libQt5Gui.so.5
#51 0x00007f39a23b6c4b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Gui.so.5
#52 0x00007f398dea5750 in userEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /usr/lib64/libQt5XcbQpa.so.5
#53 0x00007f399950ae42 in g_main_dispatch (context=0x7f39840016f0) at gmain.c:3203
#54 0x00007f399950ae42 in g_main_context_dispatch (context=context@entry=0x7f39840016f0) at gmain.c:3856
#55 0x00007f399950b1c0 in g_main_context_iterate (context=context@entry=0x7f39840016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3929
#56 0x00007f399950b26c in g_main_context_iteration (context=0x7f39840016f0, may_block=1) at gmain.c:3990
#57 0x00007f39a14af71f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#58 0x00007f39a146073a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#59 0x00007f39a146823c in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#60 0x0000561dd2c86230 in main ()

Reported using DrKonqi