Application: kdevelop (5.2.1)

Qt Version: 5.10.1
Frameworks Version: 5.44.0
Operating System: Linux 4.14.32-1-lts x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:
- Closing a Plasma activity and KDevelop and Konsole were open.

The crash can be reproduced every time.

-- Backtrace:
Application: KDevelop (kdevelop), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd9b932ddc0 (LWP 2113))]

Thread 6 (Thread 0x7fd95c3a2700 (LWP 2230)):
#0  0x00007fd9ac5b42f4 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007fd9ac56d4dd in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fd9ac56d63e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fd9b62e9264 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fd9b628b32b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fd9b609a72e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fd9b609facd in  () at /usr/lib/libQt5Core.so.5
#7  0x00007fd9af16b08c in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007fd9b59a7e7f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7fd9749f0700 (LWP 2224)):
#0  0x00007fd9af1713bd in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1  0x00007fd9b5d1c5bd in __gthread_cond_wait (__mutex=<optimized out>, __cond=<optimized out>) at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
#2  0x00007fd9b5d1c5bd in std::condition_variable::wait(std::unique_lock<std::mutex>&) (this=<optimized out>, __lock=...) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#3  0x00007fd96350c379 in  () at /usr/lib/libQt5WebKit.so.5
#4  0x00007fd96350c4c9 in  () at /usr/lib/libQt5WebKit.so.5
#5  0x00007fd9b5d22b9f in std::execute_native_thread_routine(void*) (__p=0x5607f653de10) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:83
#6  0x00007fd9af16b08c in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007fd9b59a7e7f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7fd9765b9700 (LWP 2208)):
#0  0x00007fd9b59993d8 in read () at /usr/lib/libc.so.6
#1  0x00007fd9ac5b2ed1 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fd9ac56cff8 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007fd9ac56d4c6 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007fd9ac56d63e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#5  0x00007fd9b62e9264 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fd9b628b32b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#7  0x00007fd9b609a72e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007fd9b609facd in  () at /usr/lib/libQt5Core.so.5
#9  0x00007fd9af16b08c in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007fd9b59a7e7f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7fd977b8c700 (LWP 2195)):
#0  0x00007fd9b599d97b in poll () at /usr/lib/libc.so.6
#1  0x00007fd9ac56d523 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fd9ac56d63e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fd9b62e9264 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fd9b628b32b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fd9b609a72e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fd9b3abcaf1 in  () at /usr/lib/libKDevPlatformLanguage.so.52
#7  0x00007fd9b609facd in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fd9af16b08c in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fd9b59a7e7f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7fd98219a700 (LWP 2118)):
#0  0x00007fd9b599d97b in poll () at /usr/lib/libc.so.6
#1  0x00007fd9ac56d523 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fd9ac56d63e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fd9b62e9264 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fd9b628b32b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fd9b609a72e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fd9b802f416 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007fd9b609facd in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fd9af16b08c in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fd9b59a7e7f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7fd9b932ddc0 (LWP 2113)):
[KCrash Handler]
#6  0x00007fd9b70466ff in QWidget::~QWidget() () at /usr/lib/libQt5Widgets.so.5
#7  0x00007fd9b7046b3a in QWidget::~QWidget() () at /usr/lib/libQt5Widgets.so.5
#8  0x00007fd9b62be081 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#9  0x00007fd9b704b8bc in QWidget::event(QEvent*) () at /usr/lib/libQt5Widgets.so.5
#10 0x00007fd9b700afec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#11 0x00007fd9b70129c6 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#12 0x00007fd9b628ccf0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#13 0x00007fd9b628f956 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#14 0x00007fd9b7c66c4e in  () at /usr/lib/libQt5Quick.so.5
#15 0x00007fd9b7c66fb1 in QQuickRenderControl::~QQuickRenderControl() () at /usr/lib/libQt5Quick.so.5
#16 0x00007fd9ab6e0504 in  () at /usr/lib/libQt5QuickWidgets.so.5
#17 0x00007fd9ab6de9df in  () at /usr/lib/libQt5QuickWidgets.so.5
#18 0x00007fd9ab6deb29 in  () at /usr/lib/libQt5QuickWidgets.so.5
#19 0x00007fd9b62c4d76 in QObject::~QObject() () at /usr/lib/libQt5Core.so.5
#20 0x00007fd9b7046966 in QWidget::~QWidget() () at /usr/lib/libQt5Widgets.so.5
#21 0x00007fd9603e04de in  () at /usr/lib/qt/plugins/kdevplatform/30/kdevwelcomepage.so
#22 0x00007fd9b62bb15d in QObjectPrivate::deleteChildren() () at /usr/lib/libQt5Core.so.5
#23 0x00007fd9b70468d5 in QWidget::~QWidget() () at /usr/lib/libQt5Widgets.so.5
#24 0x00007fd9b7046b3a in QWidget::~QWidget() () at /usr/lib/libQt5Widgets.so.5
#25 0x00007fd9b62bb15d in QObjectPrivate::deleteChildren() () at /usr/lib/libQt5Core.so.5
#26 0x00007fd9b70468d5 in QWidget::~QWidget() () at /usr/lib/libQt5Widgets.so.5
#27 0x00007fd9b21bc50e in KMainWindow::~KMainWindow() () at /usr/lib/libKF5XmlGui.so.5
#28 0x00007fd9b35ad0f7 in Sublime::MainWindow::~MainWindow() () at /usr/lib/libKDevPlatformSublime.so.52
#29 0x00007fd9b8e6773a in KDevelop::MainWindow::~MainWindow() () at /usr/lib/libKDevPlatformShell.so.52
#30 0x00007fd9b8e677da in KDevelop::MainWindow::~MainWindow() () at /usr/lib/libKDevPlatformShell.so.52
#31 0x00007fd9b35a53ae in Sublime::Controller::~Controller() () at /usr/lib/libKDevPlatformSublime.so.52
#32 0x00007fd9b8e8ebea in KDevelop::UiController::~UiController() () at /usr/lib/libKDevPlatformShell.so.52
#33 0x00007fd9b8e890b3 in KDevelop::CorePrivate::~CorePrivate() () at /usr/lib/libKDevPlatformShell.so.52
#34 0x00007fd9b8e893a7 in KDevelop::Core::~Core() () at /usr/lib/libKDevPlatformShell.so.52
#35 0x00007fd9b8e8944a in KDevelop::Core::~Core() () at /usr/lib/libKDevPlatformShell.so.52
#36 0x00007fd9b62be081 in QObject::event(QEvent*) () at /usr/lib/libQt5Core.so.5
#37 0x00007fd9b700afec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#38 0x00007fd9b70129c6 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#39 0x00007fd9b628ccf0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#40 0x00007fd9b628f956 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#41 0x00007fd9b6294742 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#42 0x00005607f53d89e4 in  ()
#43 0x00007fd9b58d2f4a in __libc_start_main () at /usr/lib/libc.so.6
#44 0x00005607f53d8f9a in _start ()

Possible duplicates by query: bug 391470, bug 387733, bug 385826, bug 385064.

Reported using DrKonqi