Application: plasmashell (5.12.4)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 4.15.0-20-generic x86_64
Distribution: Ubuntu 18.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:
I was trying to change appearence of system tray entries. When I pressed OK plasma crushed. It happens almost every time I make changes to system tray icons.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f54365dc800 (LWP 11608))]

Thread 13 (Thread 0x7f533d956700 (LWP 10193)):
#0  0x00007f542f43f9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d5eb146b24) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f542f43f9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d5eb146ad0, cond=0x55d5eb146af8) at pthread_cond_wait.c:502
#2  0x00007f542f43f9f3 in __pthread_cond_wait (cond=0x55d5eb146af8, mutex=0x55d5eb146ad0) at pthread_cond_wait.c:655
#3  0x00007f54302be59b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f5434043548 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f54340439aa in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f54302bd16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f542f4396db in start_thread (arg=0x7f533d956700) at pthread_create.c:463
#8  0x00007f542fbb388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f533e557700 (LWP 10184)):
#0  0x00007f542f43f9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d5ec344920) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f542f43f9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d5ec3448d0, cond=0x55d5ec3448f8) at pthread_cond_wait.c:502
#2  0x00007f542f43f9f3 in __pthread_cond_wait (cond=0x55d5ec3448f8, mutex=0x55d5ec3448d0) at pthread_cond_wait.c:655
#3  0x00007f54302be59b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f5434043548 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f54340439aa in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f54302bd16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f542f4396db in start_thread (arg=0x7f533e557700) at pthread_create.c:463
#8  0x00007f542fbb388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f533ed58700 (LWP 12128)):
#0  0x00007f542f43f9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d5e9211900) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f542f43f9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d5e92118b0, cond=0x55d5e92118d8) at pthread_cond_wait.c:502
#2  0x00007f542f43f9f3 in __pthread_cond_wait (cond=0x55d5e92118d8, mutex=0x55d5e92118b0) at pthread_cond_wait.c:655
#3  0x00007f54302be59b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f5434043548 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f54340439aa in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f54302bd16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f542f4396db in start_thread (arg=0x7f533ed58700) at pthread_create.c:463
#8  0x00007f542fbb388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f534d208700 (LWP 12115)):
#0  0x00007f542f43f9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d5e9df52b4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f542f43f9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d5e9df5260, cond=0x55d5e9df5288) at pthread_cond_wait.c:502
#2  0x00007f542f43f9f3 in __pthread_cond_wait (cond=0x55d5e9df5288, mutex=0x55d5e9df5260) at pthread_cond_wait.c:655
#3  0x00007f54302be59b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f5434043548 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f54340439aa in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f54302bd16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f542f4396db in start_thread (arg=0x7f534d208700) at pthread_create.c:463
#8  0x00007f542fbb388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f5364bd5700 (LWP 12080)):
#0  0x00007f542a7103f6 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f542a71054c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f54304f490b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f54304999ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f54302b822a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f534f783747 in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#6  0x00007f54302bd16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f542f4396db in start_thread (arg=0x7f5364bd5700) at pthread_create.c:463
#8  0x00007f542fbb388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f5375d8d700 (LWP 11914)):
#0  0x00007f542f43f9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55d5e9c82c34) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f542f43f9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55d5e9c82be0, cond=0x55d5e9c82c08) at pthread_cond_wait.c:502
#2  0x00007f542f43f9f3 in __pthread_cond_wait (cond=0x55d5e9c82c08, mutex=0x55d5e9c82be0) at pthread_cond_wait.c:655
#3  0x00007f54302be59b in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f5434043548 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f54340439aa in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f54302bd16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f542f4396db in start_thread (arg=0x7f5375d8d700) at pthread_create.c:463
#8  0x00007f542fbb388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f537658e700 (LWP 11891)):
#0  0x00007f542fba20b4 in __GI___libc_read (fd=29, buf=0x7f537658db20, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f542a754960 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f542a70ff27 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f542a7103e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f542a71054c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f54304f490b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f54304999ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f54302b822a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f5433fc42a6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f54302bd16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f542f4396db in start_thread (arg=0x7f537658e700) at pthread_create.c:463
#11 0x00007f542fbb388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f537e170700 (LWP 11813)):
#0  0x00007f542a70d317 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f542a70fd62 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f542a7103e0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f542a71054c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f54304f490b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f54304999ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f54302b822a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f54302bd16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f542f4396db in start_thread (arg=0x7f537e170700) at pthread_create.c:463
#9  0x00007f542fbb388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f540bfff700 (LWP 11740)):
#0  0x00007f542f43f9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f5435f9afb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f542f43f9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f5435f9af68, cond=0x7f5435f9af90) at pthread_cond_wait.c:502
#2  0x00007f542f43f9f3 in __pthread_cond_wait (cond=0x7f5435f9af90, mutex=0x7f5435f9af68) at pthread_cond_wait.c:655
#3  0x00007f5435ca45f4 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007f5435ca4639 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007f542f4396db in start_thread (arg=0x7f540bfff700) at pthread_create.c:463
#6  0x00007f542fbb388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f5416197700 (LWP 11730)):
#0  0x00007f542fba6bf9 in __GI___poll (fds=0x7f5404003ce0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f542a710439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f542a71054c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f54304f490b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f54304999ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f54302b822a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f543342a6f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f54302bd16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f542f4396db in start_thread (arg=0x7f5416197700) at pthread_create.c:463
#9  0x00007f542fbb388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f5417fff700 (LWP 11721)):
#0  0x00007f542fba6bf9 in __GI___poll (fds=0x7f540c004a00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f542a710439 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f542a71054c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f54304f490b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f54304999ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f54302b822a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f543342a6f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f54302bd16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f542f4396db in start_thread (arg=0x7f5417fff700) at pthread_create.c:463
#9  0x00007f542fbb388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f541dc7b700 (LWP 11677)):
#0  0x00007f542a755cf4 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f542a70f930 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f542a71036b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f542a71054c in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f54304f490b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f54304999ea in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f54302b822a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f5430971d45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007f54302bd16d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f542f4396db in start_thread (arg=0x7f541dc7b700) at pthread_create.c:463
#10 0x00007f542fbb388f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f54365dc800 (LWP 11608)):
[KCrash Handler]
#6  0x00007f5433359a65 in QV4::QObjectWrapper::getProperty(QV4::ExecutionEngine*, QObject*, int, bool) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f5433370e53 in QV4::Runtime::method_getQmlQObjectProperty(QV4::ExecutionEngine*, QV4::Value const&, int, bool) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f536412874f in  ()
#9  0x000055d5eb23d100 in  ()
#10 0x00000008000004c2 in  ()
#11 0x00007ffce3e18d20 in  ()
#12 0x0000000000000000 in  ()

Reported using DrKonqi