https://bugs.kde.org/show_bug.cgi?id=401724

            Bug ID: 401724
           Summary: Crash when losing focus to another screen
           Product: kdevelop
           Version: 5.3.0
          Platform: Neon Packages
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: kdevelop-bugs-n...@kde.org
          Reporter: frmdst...@protonmail.com
  Target Milestone: ---

Application: kdevelop (5.3.0)

Qt Version: 5.11.2
Frameworks Version: 5.52.0
Operating System: Linux 4.15.0-39-generic x86_64
Distribution: KDE neon User Edition 5.14

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

Clicking to an application (firefox) in another window. The window was also on
a separate screen.

The crash can be reproduced sometimes.

-- Backtrace:
Application: KDevelop (kdevelop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fcc2a489bc0 (LWP 16621))]

Thread 16 (Thread 0x7fcb99ffb700 (LWP 16807)):
#0  0x00007fcc1f90e9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x5640baab7d34) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fcc1f90e9f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x5640baab7ce0, cond=0x5640baab7d08) at pthread_cond_wait.c:502
#2  0x00007fcc1f90e9f3 in __pthread_cond_wait (cond=0x5640baab7d08,
mutex=0x5640baab7ce0) at pthread_cond_wait.c:655
#3  0x00007fcc2721994b in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fcc1d50aa65 in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007fcc1d50eb38 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007fcc1d50eb92 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007fcc1d50eb92 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007fcc1d50c9fb in ThreadWeaver::Thread::run() () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007fcc27218adb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fcc1f9086db in start_thread (arg=0x7fcb99ffb700) at
pthread_create.c:463
#14 0x00007fcc26b1088f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7fcb9a7fc700 (LWP 16806)):
#0  0x00007fcc1f90e9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x5640baab7d34) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fcc1f90e9f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x5640baab7ce0, cond=0x5640baab7d08) at pthread_cond_wait.c:502
#2  0x00007fcc1f90e9f3 in __pthread_cond_wait (cond=0x5640baab7d08,
mutex=0x5640baab7ce0) at pthread_cond_wait.c:655
#3  0x00007fcc2721994b in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fcc1d50aa65 in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007fcc1d50eb38 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007fcc1d50eb92 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007fcc1d50eb92 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007fcc1d50eb92 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007fcc1d50c9fb in ThreadWeaver::Thread::run() () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007fcc27218adb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007fcc1f9086db in start_thread (arg=0x7fcb9a7fc700) at
pthread_create.c:463
#16 0x00007fcc26b1088f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fcb9affd700 (LWP 16805)):
#0  0x00007fcc1f90e9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x5640baab7d34) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fcc1f90e9f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x5640baab7ce0, cond=0x5640baab7d08) at pthread_cond_wait.c:502
#2  0x00007fcc1f90e9f3 in __pthread_cond_wait (cond=0x5640baab7d08,
mutex=0x5640baab7ce0) at pthread_cond_wait.c:655
#3  0x00007fcc2721994b in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fcc1d50aa65 in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007fcc1d50eb38 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007fcc1d50eb92 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007fcc1d50eb92 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#11 0x00007fcc1d50eb92 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#12 0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#13 0x00007fcc1d50eb92 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#14 0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#15 0x00007fcc1d50eb92 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#16 0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#17 0x00007fcc1d50eb92 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#18 0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#19 0x00007fcc1d50eb92 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#20 0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#21 0x00007fcc1d50eb92 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#22 0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#23 0x00007fcc1d50eb92 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#24 0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#25 0x00007fcc1d50eb92 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#26 0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#27 0x00007fcc1d50eb92 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#28 0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#29 0x00007fcc1d50c9fb in ThreadWeaver::Thread::run() () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#30 0x00007fcc27218adb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#31 0x00007fcc1f9086db in start_thread (arg=0x7fcb9affd700) at
pthread_create.c:463
#32 0x00007fcc26b1088f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fcb9b7fe700 (LWP 16804)):
#0  0x00007fcc1f90e9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x5640baab7d34) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fcc1f90e9f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x5640baab7ce0, cond=0x5640baab7d08) at pthread_cond_wait.c:502
#2  0x00007fcc1f90e9f3 in __pthread_cond_wait (cond=0x5640baab7d08,
mutex=0x5640baab7ce0) at pthread_cond_wait.c:655
#3  0x00007fcc2721994b in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fcc1d50aa65 in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007fcc1d50eb38 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007fcc1d50eb92 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#9  0x00007fcc1d50c9fb in ThreadWeaver::Thread::run() () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#10 0x00007fcc27218adb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fcc1f9086db in start_thread (arg=0x7fcb9b7fe700) at
pthread_create.c:463
#12 0x00007fcc26b1088f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fcb9bfff700 (LWP 16803)):
#0  0x00007fcc1f90e9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x5640baab7d34) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fcc1f90e9f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x5640baab7ce0, cond=0x5640baab7d08) at pthread_cond_wait.c:502
#2  0x00007fcc1f90e9f3 in __pthread_cond_wait (cond=0x5640baab7d08,
mutex=0x5640baab7ce0) at pthread_cond_wait.c:655
#3  0x00007fcc2721994b in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fcc1d50aa65 in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () at /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#5  0x00007fcc1d50eb38 in  () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#6  0x00007fcc1d509c8d in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#7  0x00007fcc1d50c9fb in ThreadWeaver::Thread::run() () at
/usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5
#8  0x00007fcc27218adb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fcc1f9086db in start_thread (arg=0x7fcb9bfff700) at
pthread_create.c:463
#10 0x00007fcc26b1088f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fcba20e3700 (LWP 16715)):
#0  0x00007fcc26b03bf9 in __GI___poll (fds=0x7fcb9c004dd0, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fcc1d76c539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcc1d76c64c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcc2743e04b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fcc273e230a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fcc2720dbba in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcba803e3b5 in  () at
/usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#7  0x00007fcc27218adb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fcc1f9086db in start_thread (arg=0x7fcba20e3700) at
pthread_create.c:463
#9  0x00007fcc26b1088f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fcbaaab0700 (LWP 16660)):
#0  0x00007fcc26b03bf9 in __GI___poll (fds=0x7fcba4004bf0, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fcc1d76c539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcc1d76c64c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcc2743e04b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fcc273e230a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fcc2720dbba in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcc25916eef in  () at
/usr/lib/x86_64-linux-gnu/libKDevPlatformLanguage.so.53
#7  0x00007fcc27218adb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fcc1f9086db in start_thread (arg=0x7fcbaaab0700) at
pthread_create.c:463
#9  0x00007fcc26b1088f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fcbc0c0f700 (LWP 16646)):
#0  0x00007fcc26b03bf9 in __GI___poll (fds=0x7fcbb4004c80, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fcc1d76c539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcc1d76c64c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcc2743e04b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fcc273e230a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fcc2720dbba in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcc25916eef in  () at
/usr/lib/x86_64-linux-gnu/libKDevPlatformLanguage.so.53
#7  0x00007fcc27218adb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fcc1f9086db in start_thread (arg=0x7fcbc0c0f700) at
pthread_create.c:463
#9  0x00007fcc26b1088f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fcbc3542700 (LWP 16643)):
#0  0x00007fcc26aff0b4 in __GI___libc_read (fd=37, buf=0x7fcbc3541700,
nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fcc1d7b0cd0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcc1d76c027 in g_main_context_check () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcc1d76c4e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcc1d76c64c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcc2743e04b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcc273e230a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fcc2720dbba in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fcc25916eef in  () at
/usr/lib/x86_64-linux-gnu/libKDevPlatformLanguage.so.53
#9  0x00007fcc27218adb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fcc1f9086db in start_thread (arg=0x7fcbc3542700) at
pthread_create.c:463
#11 0x00007fcc26b1088f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fcbdca04700 (LWP 16635)):
#0  0x00007fcc1f90e9f3 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7fcbcad79110) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fcc1f90e9f3 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x5640bacad6f0, cond=0x7fcbcad790e8) at pthread_cond_wait.c:502
#2  0x00007fcc1f90e9f3 in __pthread_cond_wait (cond=0x7fcbcad790e8,
mutex=0x5640bacad6f0) at pthread_cond_wait.c:655
#3  0x00007fcc26e9779c in
std::condition_variable::wait(std::unique_lock<std::mutex>&) () at
/usr/lib/x86_64-linux-gnu/libstdc++.so.6
#4  0x00007fcbca08b217 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#5  0x00007fcbca08b359 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#6  0x00007fcc26e9d57f in  () at /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#7  0x00007fcc1f9086db in start_thread (arg=0x7fcbdca04700) at
pthread_create.c:463
#8  0x00007fcc26b1088f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fcbd3fff700 (LWP 16630)):
#0  0x00007fcc26aff0b4 in __GI___libc_read (fd=22, buf=0x7fcbd3ffe7b0,
nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fcc1d7b0cd0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcc1d76c027 in g_main_context_check () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcc1d76c4e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcc1d76c64c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcc2743e04b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcc273e230a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fcc2720dbba in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fcc206a04f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007fcc27218adb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fcc1f9086db in start_thread (arg=0x7fcbd3fff700) at
pthread_create.c:463
#11 0x00007fcc26b1088f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fcbddab6700 (LWP 16626)):
#0  0x00007fcc26aff0b4 in __GI___libc_read (fd=14, buf=0x7fcbddab57d0,
nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fcc1d7b0cd0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcc1d76c027 in g_main_context_check () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcc1d76c4e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcc1d76c64c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcc2743e04b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcc273e230a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fcc2720dbba in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fcc27218adb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fcc1f9086db in start_thread (arg=0x7fcbddab6700) at
pthread_create.c:463
#10 0x00007fcc26b1088f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fcbe4ea7700 (LWP 16624)):
#0  0x00007fcc26b03bf9 in __GI___poll (fds=0x7fcbd8004a10, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fcc1d76c539 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcc1d76c64c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcc2743e04b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fcc273e230a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fcc2720dbba in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcc27218adb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fcc1f9086db in start_thread (arg=0x7fcbe4ea7700) at
pthread_create.c:463
#8  0x00007fcc26b1088f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fcbe6142700 (LWP 16623)):
#0  0x00007fcc26aff0b4 in __GI___libc_read (fd=13, buf=0x7fcbe6141760,
nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fcc1d7b0cd0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcc1d76c027 in g_main_context_check () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcc1d76c4e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcc1d76c64c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcc2743e04b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcc273e230a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fcc2720dbba in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fcc2580fa3b in  () at
/usr/lib/x86_64-linux-gnu/libKDevPlatformLanguage.so.53
#9  0x00007fcc27218adb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fcc1f9086db in start_thread (arg=0x7fcbe6142700) at
pthread_create.c:463
#11 0x00007fcc26b1088f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fcbf1ff6700 (LWP 16622)):
#0  0x00007fcc26aff0b4 in __GI___libc_read (fd=8, buf=0x7fcbf1ff57a0,
nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fcc1d7b0cd0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcc1d76c027 in g_main_context_check () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcc1d76c4e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcc1d76c64c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcc2743e04b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fcc273e230a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fcc2720dbba in QThread::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fcc2850ce45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007fcc27218adb in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fcc1f9086db in start_thread (arg=0x7fcbf1ff6700) at
pthread_create.c:463
#11 0x00007fcc26b1088f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fcc2a489bc0 (LWP 16621)):
[KCrash Handler]
#6  0x00005640bccbec60 in  ()
#7  0x00007fcc27e612a8 in QWindowPrivate::setVisible(bool) () at
/usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#8  0x00007fcc28b7372f in QWidgetPrivate::hide_sys() () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9  0x00007fcc28b7ab00 in QWidgetPrivate::hide_helper() () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007fcc28b7f7f0 in QWidget::setVisible(bool) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007fcc28b7af28 in
QWidgetPrivate::close_helper(QWidgetPrivate::CloseMode) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#12 0x00007fcc28b7b590 in QWidget::~QWidget() () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007fcc239c84e1 in  () at
/usr/lib/x86_64-linux-gnu/libKF5TextEditor.so.5
#14 0x00007fcc239b8891 in  () at
/usr/lib/x86_64-linux-gnu/libKF5TextEditor.so.5
#15 0x00007fcc28b7fa98 in QWidget::event(QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007fcc28ccf9d2 in QScrollBar::event(QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007fcc28b40e1c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#18 0x00007fcc28b483ef in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007fcc273e3fe8 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007fcc28b46f09 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#21 0x00007fcc28b47da9 in QApplicationPrivate::sendMouseEvent(QWidget*,
QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007fcc28b9ac13 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#23 0x00007fcc28b9d229 in  () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#24 0x00007fcc28b40e1c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007fcc28b483ef in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007fcc273e3fe8 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007fcc27e557bb in
QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#28 0x00007fcc27e57335 in
QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)
() at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#29 0x00007fcc27e2ff5b in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#30 0x00007fcbf817173b in  () at
/usr/lib/x86_64-linux-gnu/libQt5WaylandClient.so.5
#31 0x00007fcc273e230a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007fcc273eb4d0 in QCoreApplication::exec() () at
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00005640b881d190 in  ()
#34 0x00007fcc26a10b97 in __libc_start_main (main=0x5640b88174b0, argc=3,
argv=0x7ffeab854ae8, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7ffeab854ad8) at ../csu/libc-start.c:310
#35 0x00005640b881d83a in _start ()
[Inferior 1 (process 16621) detached]

Reported using DrKonqi

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