https://bugs.kde.org/show_bug.cgi?id=411629

            Bug ID: 411629
           Summary: Syncthingtray in system tray causes crash
           Product: plasmashell
           Version: 5.16.5
          Platform: Archlinux Packages
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: k...@davidedmundson.co.uk
          Reporter: vet.rol...@gmail.com
                CC: plasma-b...@kde.org
  Target Milestone: 1.0

Application: plasmashell (5.16.5)

Qt Version: 5.13.0
Frameworks Version: 5.61.0
Operating System: Linux 5.2.11-arch1-1-ARCH x86_64
Distribution: "Arch Linux"

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

plasmashell crashes at log in/immediately when syncthingtray is installed/in
the system tray widget.

No syncthingtray -> no crash

No system tray widget -> no crash
    Then adding system tray widget back -> crash

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Aborted
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f1e4c279880 (LWP 27476))]

Thread 12 (Thread 0x7f1e155a7700 (LWP 28085)):
#0  0x00007f1e50259415 in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f1e50d8a5a0 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f1e50d8a692 in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#3  0x00007f1e52b6e7bd in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f1e52b6ea6e in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f1e50d84520 in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f1e5025357f in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f1e50a130e3 in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7f1e14d02700 (LWP 28047)):
#0  0x00007f1e50259415 in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f1e50d8a5a0 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f1e50d8a692 in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#3  0x00007f1e52b6e7bd in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f1e52b6ea6e in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f1e50d84520 in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f1e5025357f in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f1e50a130e3 in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7f1e15e67700 (LWP 27902)):
#0  0x00007f1e50259415 in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f1e50d8a5a0 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f1e50d8a692 in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#3  0x00007f1e52b6e7bd in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f1e52b6ea6e in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f1e50d84520 in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f1e5025357f in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f1e50a130e3 in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7f1e16e5a700 (LWP 27867)):
#0  0x00007f1e50a08667 in poll () at /usr/lib/libc.so.6
#1  0x00007f1e4f22fa80 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f1e4f22fb51 in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f1e50fa99bc in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007f1e50f505ec in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f1e50d832f5 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f1e50d84520 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007f1e5025357f in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007f1e50a130e3 in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7f1e17ee6700 (LWP 27835)):
#0  0x00007f1e50a0418c in read () at /usr/lib/libc.so.6
#1  0x00007f1e4f1e09f0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f1e4f22e311 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f1e4f22fa28 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f1e4f22fb51 in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#5  0x00007f1e50fa99bc in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#6  0x00007f1e50f505ec in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#7  0x00007f1e50d832f5 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f1e50d84520 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007f1e5025357f in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007f1e50a130e3 in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7f1e33fff700 (LWP 27609)):
#0  0x00007f1e50a08667 in poll () at /usr/lib/libc.so.6
#1  0x00007f1e4f22fa80 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f1e4f22fb51 in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f1e50fa99bc in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007f1e50f505ec in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f1e50d832f5 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f1e52ae361b in  () at /usr/lib/libQt5Quick.so.5
#7  0x00007f1e50d84520 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f1e5025357f in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f1e50a130e3 in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7f1e38bf1700 (LWP 27585)):
#0  0x00007f1e50259415 in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f1e50d8a5a0 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at
/usr/lib/libQt5Core.so.5
#2  0x00007f1e50d8a692 in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#3  0x00007f1e52b6e7bd in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007f1e52b6ea6e in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007f1e50d84520 in  () at /usr/lib/libQt5Core.so.5
#6  0x00007f1e5025357f in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007f1e50a130e3 in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7f1e3ab55700 (LWP 27541)):
#0  0x00007f1e50259415 in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007f1e3ae4af5c in  () at /usr/lib/dri/i965_dri.so
#2  0x00007f1e3ae4ab58 in  () at /usr/lib/dri/i965_dri.so
#3  0x00007f1e5025357f in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007f1e50a130e3 in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7f1e49335700 (LWP 27528)):
#0  0x00007f1e50a08667 in poll () at /usr/lib/libc.so.6
#1  0x00007f1e4f22fa80 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f1e4f22fb51 in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007f1e50fa99bc in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007f1e50f505ec in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007f1e50d832f5 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007f1e528058f9 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007f1e50d84520 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007f1e5025357f in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007f1e50a130e3 in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7f1e4a546700 (LWP 27511)):
#0  0x00007f1e50a0418c in read () at /usr/lib/libc.so.6
#1  0x00007f1e4f1e09f0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007f1e4f22e311 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3  0x00007f1e4f22fa28 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007f1e4f22fb51 in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#5  0x00007f1e50fa99bc in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#6  0x00007f1e50f505ec in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#7  0x00007f1e50d832f5 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8  0x00007f1e51821b37 in  () at /usr/lib/libQt5DBus.so.5
#9  0x00007f1e50d84520 in  () at /usr/lib/libQt5Core.so.5
#10 0x00007f1e5025357f in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007f1e50a130e3 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7f1e4b4a3700 (LWP 27503)):
#0  0x00007f1e50a08667 in poll () at /usr/lib/libc.so.6
#1  0x00007f1e52f73630 in  () at /usr/lib/libxcb.so.1
#2  0x00007f1e52f752db in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007f1e4be3c049 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007f1e50d84520 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007f1e5025357f in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007f1e50a130e3 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7f1e4c279880 (LWP 27476)):
[KCrash Handler]
#6  0x00007f1e50951755 in raise () at /usr/lib/libc.so.6
#7  0x00007f1e5093c851 in abort () at /usr/lib/libc.so.6
#8  0x00007f1e50993a38 in __libc_message () at /usr/lib/libc.so.6
#9  0x00007f1e5099a25a in  () at /usr/lib/libc.so.6
#10 0x00007f1e5099b9cc in _int_free () at /usr/lib/libc.so.6
#11 0x00007f1e50f7e261 in QObject::event(QEvent*) () at
/usr/lib/libQt5Core.so.5
#12 0x00007f1e51a8f4d5 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/libQt5Widgets.so.5
#13 0x00007f1e51a98a21 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#14 0x00007f1e50f519c2 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/libQt5Core.so.5
#15 0x00007f1e50f54739 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#16 0x00007f1e50faa3a4 in  () at /usr/lib/libQt5Core.so.5
#17 0x00007f1e4f22dcf4 in g_main_context_dispatch () at
/usr/lib/libglib-2.0.so.0
#18 0x00007f1e4f22fb11 in  () at /usr/lib/libglib-2.0.so.0
#19 0x00007f1e4f22fb51 in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#20 0x00007f1e50fa99a3 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#21 0x00007f1e50f505ec in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#22 0x00007f1e50f58326 in QCoreApplication::exec() () at
/usr/lib/libQt5Core.so.5
#23 0x00005622c972edf6 in  ()
#24 0x00007f1e5093dee3 in __libc_start_main () at /usr/lib/libc.so.6
#25 0x00005622c972f2ae in _start ()
[Inferior 1 (process 27476) detached]

Reported using DrKonqi

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