https://bugs.kde.org/show_bug.cgi?id=388210

            Bug ID: 388210
           Summary: KDevelop crash after variable selection (pointer to
                    class object)
           Product: kdevelop
           Version: 5.2.1
          Platform: Archlinux Packages
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: kdevelop-bugs-n...@kde.org
          Reporter: likeit...@googlemail.com
  Target Milestone: ---

Application: kdevelop (5.2.1)

Qt Version: 5.10.0
Frameworks Version: 5.41.0
Operating System: Linux 4.14.8-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

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

Example:

class Example
{
public:
  const std::string header;
};

Now I create an an object from this Example class.

auto* obj = new Example(...)

Now I try to access the header variable in the code (in some other source
files):

obj->... 

The code completion now shows me the header variable, if I press Enter to
select the variable (header)
KDevelop crash every time. 

I use ArchLinux with the latest KDevelop version 5.2.1.

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 0x7f576eae6d80 (LWP 4080))]

Thread 25 (Thread 0x7f569effd700 (LWP 4708)):
#0  0x00007f57647ce38d in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f576b82600c in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f57601b842f in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f57601bd479 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f57601b7924 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f57601bac83 in ThreadWeaver::Thread::run() () at
/usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 24 (Thread 0x7f569f7fe700 (LWP 4707)):
#0  0x00007f57647ce38d in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f576b82600c in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f57601b842f in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f57601bd479 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f57601b7924 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f57601bac83 in ThreadWeaver::Thread::run() () at
/usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 23 (Thread 0x7f569ffff700 (LWP 4705)):
#0  0x00007f57647ce38d in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f576b82600c in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f57601b842f in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f57601bd479 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f57601b7924 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f57601bac83 in ThreadWeaver::Thread::run() () at
/usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 22 (Thread 0x7f56acfcc700 (LWP 4704)):
#0  0x00007f57647ce38d in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f576b82600c in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f57601b842f in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f57601bd479 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f57601b7924 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f57601bac83 in ThreadWeaver::Thread::run() () at
/usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 21 (Thread 0x7f56ad90e700 (LWP 4703)):
#0  0x00007f57647ce38d in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f576b82600c in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f57601b842f in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f57601bd479 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f57601b7924 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f57601bac83 in ThreadWeaver::Thread::run() () at
/usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 20 (Thread 0x7f56ae10f700 (LWP 4698)):
#0  0x00007f57647ce38d in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f576b82600c in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f57601b842f in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f57601bd479 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f57601b7924 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f57601bac83 in ThreadWeaver::Thread::run() () at
/usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 19 (Thread 0x7f56ae910700 (LWP 4697)):
#0  0x00007f57647ce38d in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f576b82600c in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f57601b842f in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f57601bd479 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f57601b7924 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f57601bac83 in ThreadWeaver::Thread::run() () at
/usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 18 (Thread 0x7f56af111700 (LWP 4696)):
#0  0x00007f57647ce38d in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f576b82600c in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f57601b842f in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f57601bd479 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f57601b7924 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f57601bac83 in ThreadWeaver::Thread::run() () at
/usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 17 (Thread 0x7f56e8889700 (LWP 4684)):
#0  0x00007f5761c315f9 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f5761c09dc9 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f5761c09fae in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f576ba6d6b4 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007f576ba0f82b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f576b81f78e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f56f080cb6a in  () at
/usr/lib/qt/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#7  0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7f56ebb4e700 (LWP 4678)):
#0  0x00007f57647ce38d in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f576b82600c in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f57601b842f in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f57601bd479 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f57601b7924 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f57601bac83 in ThreadWeaver::Thread::run() () at
/usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7f56d3fff700 (LWP 4677)):
#0  0x00007f57647ce38d in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f576b82600c in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f57601b842f in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f57601bd479 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f57601b7924 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f57601bd4d2 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f57601b7924 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f57601bd4d2 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f57601b7924 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f57601bac83 in ThreadWeaver::Thread::run() () at
/usr/lib/libKF5ThreadWeaver.so.5
#10 0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#11 0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#12 0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7f56d1ffb700 (LWP 4676)):
#0  0x00007f57647ce38d in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f576b82600c in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f57601b842f in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f57601bd479 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f57601b7924 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f57601bd4d2 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f57601b7924 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f57601bac83 in ThreadWeaver::Thread::run() () at
/usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7f56ea88d700 (LWP 4675)):
#0  0x00007f57647ce38d in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f576b82600c in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f57601b842f in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f57601bd479 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f57601b7924 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f57601bd4d2 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f57601b7924 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f57601bac83 in ThreadWeaver::Thread::run() () at
/usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7f56ea08c700 (LWP 4674)):
#0  0x00007f57647ce38d in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f576b82600c in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f57601b842f in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () at /usr/lib/libKF5ThreadWeaver.so.5
#3  0x00007f57601bd479 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#4  0x00007f57601b7924 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/libKF5ThreadWeaver.so.5
#5  0x00007f57601bd4d2 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#6  0x00007f57601b7924 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/libKF5ThreadWeaver.so.5
#7  0x00007f57601bd4d2 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#8  0x00007f57601b7924 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/libKF5ThreadWeaver.so.5
#9  0x00007f57601bd4d2 in  () at /usr/lib/libKF5ThreadWeaver.so.5
#10 0x00007f57601b7924 in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/libKF5ThreadWeaver.so.5
#11 0x00007f57601bac83 in ThreadWeaver::Thread::run() () at
/usr/lib/libKF5ThreadWeaver.so.5
#12 0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#13 0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#14 0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f56f32bd700 (LWP 4100)):
#0  0x00007f576b121f2b in poll () at /usr/lib/libc.so.6
#1  0x00007f5761c09ed3 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f5761c09fae in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f576ba6d6b4 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007f576ba0f82b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f576b81f78e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f5769326302 in  () at /usr/lib/libKDevPlatformLanguage.so.52
#7  0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f57134ed700 (LWP 4099)):
#0  0x00007f5761c315f9 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1  0x00007f5761c0977d in g_main_context_prepare () at
/usr/lib/libglib-2.0.so.0
#2  0x00007f5761c09df6 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007f5761c09fae in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#4  0x00007f576ba6d6b4 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#5  0x00007f576ba0f82b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#6  0x00007f576b81f78e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007f5769326302 in  () at /usr/lib/libKDevPlatformLanguage.so.52
#8  0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f5713cee700 (LWP 4098)):
#0  0x00007f57647ce38d in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f576b4a148d 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  0x00007f576b4a148d 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  0x00007f570750faa9 in  () at /usr/lib/libQt5WebKit.so.5
#4  0x00007f570750fbf9 in  () at /usr/lib/libQt5WebKit.so.5
#5  0x00007f576b4a7a6f in std::execute_native_thread_routine(void*)
(__p=0x55fef936a700) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:83
#6  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f57193ad700 (LWP 4094)):
#0  0x00007f576b121f2b in poll () at /usr/lib/libc.so.6
#1  0x00007f5761c09ed3 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f5761c09fae in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f576ba6d6b4 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007f576ba0f82b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f576b81f78e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f571bfff700 (LWP 4088)):
#0  0x00007f576b121f2b in poll () at /usr/lib/libc.so.6
#1  0x00007f5761c09ed3 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f5761c09fae in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f576ba6d6b4 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007f576ba0f82b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f576b81f78e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f5764249a19 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f5728f3d700 (LWP 4086)):
#0  0x00007f576b11da48 in read () at /usr/lib/libc.so.6
#1  0x00007f5761c31521 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f5761c0890b in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f5761c09e76 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f5761c09fae in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#5  0x00007f576ba6d6b4 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#6  0x00007f576ba0f82b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#7  0x00007f576b81f78e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f572a221700 (LWP 4085)):
#0  0x00007f576b121f2b in poll () at /usr/lib/libc.so.6
#1  0x00007f5761c09ed3 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f5761c09fae in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f576ba6d6b4 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007f576ba0f82b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f576b81f78e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f576920f921 in  () at /usr/lib/libKDevPlatformLanguage.so.52
#7  0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f572c61a700 (LWP 4083)):
#0  0x00007f57647ce38d in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f576b82600c in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f576b81e05c in QSemaphore::acquire(int) () at
/usr/lib/libQt5Core.so.5
#3  0x00007f572d60c2b7 in  () at
/usr/lib/qt/plugins/texttospeech/libqttexttospeech_flite.so
#4  0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f5736d30700 (LWP 4082)):
#0  0x00007f576b121f2b in poll () at /usr/lib/libc.so.6
#1  0x00007f5761c09ed3 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f5761c09fae in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f576ba6d6b4 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007f576ba0f82b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f576b81f78e in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f576d7b1416 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f5740208700 (LWP 4081)):
#0  0x00007f576b121f2b in poll () at /usr/lib/libc.so.6
#1  0x00007f5756fe08e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007f5756fe2679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f57427237aa in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f576b824b2d in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f57647c808a in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f576b12c42f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f576eae6d80 (LWP 4080)):
[KCrash Handler]
#5  0x00007f57692d7d78 in KDevelop::FunctionType::returnType() const () at
/usr/lib/libKDevPlatformLanguage.so.52
#6  0x00007f56f9082137 in  () at /usr/lib/libKDevClangPrivate.so.30
#7  0x00007f5767e63dde in KateCompletionWidget::execute() () at
/usr/lib/libKF5TextEditor.so.5
#8  0x00007f576ba41a06 in QMetaObject::activate(QObject*, int, int, void**) ()
at /usr/lib/libQt5Core.so.5
#9  0x00007f576c9e1f96 in QAbstractItemView::doubleClicked(QModelIndex const&)
() at /usr/lib/libQt5Widgets.so.5
#10 0x00007f576ca55cb5 in QTreeView::mouseDoubleClickEvent(QMouseEvent*) () at
/usr/lib/libQt5Widgets.so.5
#11 0x00007f576c7cc777 in QWidget::event(QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#12 0x00007f576c86fb4f in QFrame::event(QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#13 0x00007f576c9ee234 in QAbstractItemView::viewportEvent(QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#14 0x00007f576ca57dfd in QTreeView::viewportEvent(QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#15 0x00007f576ba10eac in
QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at
/usr/lib/libQt5Core.so.5
#16 0x00007f576c78be18 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/libQt5Widgets.so.5
#17 0x00007f576c793d91 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#18 0x00007f576ba111e0 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/libQt5Core.so.5
#19 0x00007f576c792d1a in QApplicationPrivate::sendMouseEvent(QWidget*,
QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () at
/usr/lib/libQt5Widgets.so.5
#20 0x00007f576c7e7289 in  () at /usr/lib/libQt5Widgets.so.5
#21 0x00007f576c7e99a0 in  () at /usr/lib/libQt5Widgets.so.5
#22 0x00007f576c78be3c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/libQt5Widgets.so.5
#23 0x00007f576c793816 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#24 0x00007f576ba111e0 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/libQt5Core.so.5
#25 0x00007f576bf827c2 in
QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*)
() at /usr/lib/libQt5Gui.so.5
#26 0x00007f576bf84186 in
QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)
() at /usr/lib/libQt5Gui.so.5
#27 0x00007f576bf5bbbc in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() at /usr/lib/libQt5Gui.so.5
#28 0x00007f57427ab15d in  () at /usr/lib/libQt5XcbQpa.so.5
#29 0x00007f576ba0f82b in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#30 0x00007f576ba18b18 in QCoreApplication::exec() () at
/usr/lib/libQt5Core.so.5
#31 0x000055fef5d25a3c in  ()
#32 0x00007f576b056f4a in __libc_start_main () at /usr/lib/libc.so.6
#33 0x000055fef5d25fea in _start ()

Reported using DrKonqi

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