Application: kmail (5.1.1)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-3-default x86_64
Distribution: "openSUSE Tumbleweed (20160208) (x86_64)"

-- Information about the crash:
After starting my kde plasma5 session, I launch kmail using my global shortcut (meta+J) immediately this crash dialog appear. Then the complete interface start and work afterwards.

The crash can be reproduced sometimes.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f0284429940 (LWP 3893))]

Thread 16 (Thread 0x7f025d8f0700 (LWP 3900)):
#0  0x00007f028146524d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f02743fe432 in _xcb_conn_wait (__timeout=-1, __nfds=1, __fds=0x7f025d8efb80) at /usr/include/bits/poll2.h:46
#2  0x00007f02743fe432 in _xcb_conn_wait (c=c@entry=0x1f441e0, cond=cond@entry=0x1f44220, vector=vector@entry=0x0, count=count@entry=0x0) at xcb_conn.c:459
#3  0x00007f0274400007 in xcb_wait_for_event (c=0x1f441e0) at xcb_in.c:693
#4  0x00007f025fc49e29 in QXcbEventReader::run() (this=0x1f51400) at qxcbconnection.cpp:1229
#5  0x00007f0281d6c94f in QThreadPrivate::start(void*) (arg=0x1f51400) at thread/qthread_unix.cpp:331
#6  0x00007f02777fd4a4 in start_thread (arg=0x7f025d8f0700) at pthread_create.c:334
#7  0x00007f028146dbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f02571df700 (LWP 3919)):
#0  0x00007f0277805d9a in __lll_unlock_wake () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:371
#1  0x00007f0277801121 in __pthread_mutex_unlock_usercnt (mutex=0x7f02765965d0, decr=<optimized out>) at pthread_mutex_unlock.c:57
#2  0x00007f0276317ce5 in  () at /usr/X11R6/lib64/libGL.so.1
#3  0x00007f027631d018 in  () at /usr/X11R6/lib64/libGL.so.1
#4  0x00007f026b529001 in  () at /usr/lib64/tls/libnvidia-tls.so.352.79
#5  0x00007f0277322210 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f02571deab0, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#6  0x00007f0277322210 in g_wakeup_acknowledge (wakeup=0x7f02580015b0) at gwakeup.c:210
#7  0x00007f02772dfd94 in g_main_context_check (context=context@entry=0x7f02500009b0, max_priority=2147483647, fds=fds@entry=0x7f02500013c0, n_fds=n_fds@entry=1) at gmain.c:3632
#8  0x00007f02772e0208 in g_main_context_iterate (context=context@entry=0x7f02500009b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3837
#9  0x00007f02772e036c in g_main_context_iteration (context=0x7f02500009b0, may_block=may_block@entry=1) at gmain.c:3901
#10 0x00007f0281f9152b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f02500008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#11 0x00007f0281f3b63a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f02571dec90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#12 0x00007f0281d67b1c in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#13 0x00007f0281d6c94f in QThreadPrivate::start(void*) (arg=0x20faf40) at thread/qthread_unix.cpp:331
#14 0x00007f02777fd4a4 in start_thread (arg=0x7f02571df700) at pthread_create.c:334
#15 0x00007f028146dbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f025493f700 (LWP 4617)):
#0  0x00007f02773234d4 in g_mutex_unlock (mutex=0x7f0238002cd0) at gthread-posix.c:1350
#1  0x00007f02772e0376 in g_main_context_iteration (context=0x7f0238002cd0, may_block=may_block@entry=1) at gmain.c:3902
#2  0x00007f0281f9152b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f0238002c00, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#3  0x00007f0281f3b63a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f025493ec90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f0281d67b1c in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#5  0x00007f0281d6c94f in QThreadPrivate::start(void*) (arg=0x258c7c0) at thread/qthread_unix.cpp:331
#6  0x00007f02777fd4a4 in start_thread (arg=0x7f025493f700) at pthread_create.c:334
#7  0x00007f028146dbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f0255140700 (LWP 4619)):
#0  0x00007f028146524d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f02772e0264 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f0244003070, timeout=<optimized out>, context=0x7f0244002ed0) at gmain.c:4135
#2  0x00007f02772e0264 in g_main_context_iterate (context=context@entry=0x7f0244002ed0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3835
#3  0x00007f02772e036c in g_main_context_iteration (context=0x7f0244002ed0, may_block=may_block@entry=1) at gmain.c:3901
#4  0x00007f0281f9152b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f0244002e00, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f0281f3b63a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f025513fc90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f0281d67b1c in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f0281d6c94f in QThreadPrivate::start(void*) (arg=0x246a6d0) at thread/qthread_unix.cpp:331
#8  0x00007f02777fd4a4 in start_thread (arg=0x7f0255140700) at pthread_create.c:334
#9  0x00007f028146dbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f0255b59700 (LWP 4621)):
#0  0x00007f027780307f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f02722693bb in  () at /usr/lib64/libQt5WebKit.so.5
#2  0x00007f02722693f9 in  () at /usr/lib64/libQt5WebKit.so.5
#3  0x00007f02777fd4a4 in start_thread (arg=0x7f0255b59700) at pthread_create.c:334
#4  0x00007f028146dbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f025635a700 (LWP 4622)):
#0  0x00007f028146122d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f026b528f75 in  () at /usr/lib64/tls/libnvidia-tls.so.352.79
#2  0x00007f0277322210 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f0256359ab0, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#3  0x00007f0277322210 in g_wakeup_acknowledge (wakeup=0x7f0248002780) at gwakeup.c:210
#4  0x00007f02772dfd94 in g_main_context_check (context=context@entry=0x7f0240072680, max_priority=2147483647, fds=fds@entry=0x7f024005e3c0, n_fds=n_fds@entry=1) at gmain.c:3632
#5  0x00007f02772e0208 in g_main_context_iterate (context=context@entry=0x7f0240072680, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3837
#6  0x00007f02772e036c in g_main_context_iteration (context=0x7f0240072680, may_block=may_block@entry=1) at gmain.c:3901
#7  0x00007f0281f9152b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f0240094d30, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#8  0x00007f0281f3b63a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f0256359c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#9  0x00007f0281d67b1c in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#10 0x00007f0281d6c94f in QThreadPrivate::start(void*) (arg=0x2474ce0) at thread/qthread_unix.cpp:331
#11 0x00007f02777fd4a4 in start_thread (arg=0x7f025635a700) at pthread_create.c:334
#12 0x00007f028146dbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f023ddb0700 (LWP 4624)):
#0  0x00007f02772dfa80 in g_main_context_query (context=context@entry=0x7f01f00009b0, max_priority=2147483647, timeout=timeout@entry=0x7f023ddafb7c, fds=fds@entry=0x7f01f0001630, n_fds=n_fds@entry=2) at gmain.c:3539
#1  0x00007f02772e01df in g_main_context_iterate (context=context@entry=0x7f01f00009b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3822
#2  0x00007f02772e036c in g_main_context_iteration (context=0x7f01f00009b0, may_block=may_block@entry=1) at gmain.c:3901
#3  0x00007f0281f9152b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f01f00008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f0281f3b63a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f023ddafc90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f0281d67b1c in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f0281d6c94f in QThreadPrivate::start(void*) (arg=0x26389a0) at thread/qthread_unix.cpp:331
#7  0x00007f02777fd4a4 in start_thread (arg=0x7f023ddb0700) at pthread_create.c:334
#8  0x00007f028146dbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f023d5af700 (LWP 4626)):
#0  0x00007f028146524d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f02772e0264 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f01e80013c0, timeout=<optimized out>, context=0x7f01e80009b0) at gmain.c:4135
#2  0x00007f02772e0264 in g_main_context_iterate (context=context@entry=0x7f01e80009b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3835
#3  0x00007f02772e036c in g_main_context_iteration (context=0x7f01e80009b0, may_block=may_block@entry=1) at gmain.c:3901
#4  0x00007f0281f9152b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f01e80008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f0281f3b63a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f023d5aec90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f0281d67b1c in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f0281d6c94f in QThreadPrivate::start(void*) (arg=0x24968d0) at thread/qthread_unix.cpp:331
#8  0x00007f02777fd4a4 in start_thread (arg=0x7f023d5af700) at pthread_create.c:334
#9  0x00007f028146dbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f01f7bef700 (LWP 4628)):
#0  0x00007f027780307f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0271f77764 in  () at /usr/lib64/libQt5WebKit.so.5
#2  0x00007f0272298441 in  () at /usr/lib64/libQt5WebKit.so.5
#3  0x00007f02777fd4a4 in start_thread (arg=0x7f01f7bef700) at pthread_create.c:334
#4  0x00007f028146dbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f01f73ee700 (LWP 4629)):
#0  0x00007f027780307f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0271f78793 in  () at /usr/lib64/libQt5WebKit.so.5
#2  0x00007f0272298441 in  () at /usr/lib64/libQt5WebKit.so.5
#3  0x00007f02777fd4a4 in start_thread (arg=0x7f01f73ee700) at pthread_create.c:334
#4  0x00007f028146dbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f01f6bed700 (LWP 4630)):
#0  0x00007f027780307f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0271f78793 in  () at /usr/lib64/libQt5WebKit.so.5
#2  0x00007f0272298441 in  () at /usr/lib64/libQt5WebKit.so.5
#3  0x00007f02777fd4a4 in start_thread (arg=0x7f01f6bed700) at pthread_create.c:334
#4  0x00007f028146dbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f01f63ec700 (LWP 4631)):
#0  0x00007f027780307f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0271f78793 in  () at /usr/lib64/libQt5WebKit.so.5
#2  0x00007f0272298441 in  () at /usr/lib64/libQt5WebKit.so.5
#3  0x00007f02777fd4a4 in start_thread (arg=0x7f01f63ec700) at pthread_create.c:334
#4  0x00007f028146dbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f01f5beb700 (LWP 4632)):
#0  0x00007f027780307f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0271f78793 in  () at /usr/lib64/libQt5WebKit.so.5
#2  0x00007f0272298441 in  () at /usr/lib64/libQt5WebKit.so.5
#3  0x00007f02777fd4a4 in start_thread (arg=0x7f01f5beb700) at pthread_create.c:334
#4  0x00007f028146dbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f01f53ea700 (LWP 4633)):
#0  0x00007f027780307f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0271f78793 in  () at /usr/lib64/libQt5WebKit.so.5
#2  0x00007f0272298441 in  () at /usr/lib64/libQt5WebKit.so.5
#3  0x00007f02777fd4a4 in start_thread (arg=0x7f01f53ea700) at pthread_create.c:334
#4  0x00007f028146dbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f01f4be9700 (LWP 4634)):
#0  0x00007f027780307f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0271f78793 in  () at /usr/lib64/libQt5WebKit.so.5
#2  0x00007f0272298441 in  () at /usr/lib64/libQt5WebKit.so.5
#3  0x00007f02777fd4a4 in start_thread (arg=0x7f01f4be9700) at pthread_create.c:334
#4  0x00007f028146dbdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f0284429940 (LWP 3893)):
[KCrash Handler]
#6  0x00007f0283c88c80 in  () at /usr/lib64/libkmailprivate.so.5
#7  0x00007f0283cb840c in KMMainWidget::updateMessageActionsDelayed() () at /usr/lib64/libkmailprivate.so.5
#8  0x00007f0283cb8cb3 in KMMainWidget::updateMessageActions(bool) () at /usr/lib64/libkmailprivate.so.5
#9  0x00007f0283cc92c1 in KMMainWidget::setupActions() () at /usr/lib64/libkmailprivate.so.5
#10 0x00007f0283ccd76b in KMMainWidget::KMMainWidget(QWidget*, KXMLGUIClient*, KActionCollection*, QExplicitlySharedDataPointer<KSharedConfig>) () at /usr/lib64/libkmailprivate.so.5
#11 0x00007f0283c7b662 in  () at /usr/lib64/libkmailprivate.so.5
#12 0x00007f0283c8c1c7 in KMKernel::openReader(bool) () at /usr/lib64/libkmailprivate.so.5
#13 0x00007f0283c96c7c in KMKernel::action(bool, bool, QString const&, QString const&, QString const&, QString const&, QString const&, QUrl const&, QList<QUrl> const&, QStringList const&, QString const&, QString const&) () at /usr/lib64/libkmailprivate.so.5
#14 0x00007f0283c981e3 in KMKernel::handleCommandLine(bool, QStringList const&, QString const&) () at /usr/lib64/libkmailprivate.so.5
#15 0x0000000000404f03 in KMailApplication::activate(QStringList const&, QString const&) ()
#16 0x00007f028409297e in KontactInterface::PimUniqueApplication::newInstance(QByteArray const&, QStringList const&, QString const&) () at /usr/lib64/libKF5KontactInterface.so.5
#17 0x00007f0284093a72 in  () at /usr/lib64/libKF5KontactInterface.so.5
#18 0x00007f0284093dc3 in KontactInterface::PimUniqueApplication::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib64/libKF5KontactInterface.so.5
#19 0x00007f0280443433 in QDBusConnectionPrivate::deliverCall(QObject*, int, QDBusMessage const&, QVector<int> const&, int) (this=this@entry=0x1fac460, object=object@entry=0x7ffe846aee20, msg=..., metaTypes=..., slotIdx=30) at qdbusintegrator.cpp:978
#20 0x00007f0280446fd0 in QDBusConnectionPrivate::activateCall(QObject*, int, QDBusMessage const&) (this=this@entry=0x1fac460, object=0x7ffe846aee20, flags=81, msg=...) at qdbusintegrator.cpp:885
#21 0x00007f028044792b in QDBusConnectionPrivate::activateObject(QDBusConnectionPrivate::ObjectTreeNode&, QDBusMessage const&, int) (this=0x1fac460, node=..., msg=..., pathStartPos=<optimized out>) at qdbusintegrator.cpp:1486
#22 0x00007f0280448bbe in QDBusActivateObjectEvent::placeMetaCall(QObject*) (this=0x269fdf0) at qdbusintegrator.cpp:1580
#23 0x00007f0281f6bd79 in QObject::event(QEvent*) (this=this@entry=0x7ffe846aee20, e=e@entry=0x269fdf0) at kernel/qobject.cpp:1239
#24 0x00007f0281f4324c in QCoreApplication::event(QEvent*) (this=this@entry=0x7ffe846aee20, e=e@entry=0x269fdf0) at kernel/qcoreapplication.cpp:1728
#25 0x00007f028247e1f4 in QGuiApplication::event(QEvent*) (this=this@entry=0x7ffe846aee20, e=e@entry=0x269fdf0) at kernel/qguiapplication.cpp:1546
#26 0x00007f0283101ec8 in QApplication::event(QEvent*) (this=0x7ffe846aee20, e=0x269fdf0) at kernel/qapplication.cpp:2074
#27 0x00007f02830fe8cc in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x1f234b0, receiver=receiver@entry=0x7ffe846aee20, e=e@entry=0x269fdf0) at kernel/qapplication.cpp:3716
#28 0x00007f02831039d6 in QApplication::notify(QObject*, QEvent*) (this=0x7ffe846aee20, receiver=0x7ffe846aee20, e=0x269fdf0) at kernel/qapplication.cpp:3499
#29 0x00007f0281f3dcf3 in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7ffe846aee20, receiver=0x7ffe846aee20, event=event@entry=0x269fdf0) at kernel/qcoreapplication.cpp:965
#30 0x00007f0281f40016 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (event=0x269fdf0, receiver=<optimized out>) at kernel/qcoreapplication.h:224
#31 0x00007f0281f40016 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1f1e800) at kernel/qcoreapplication.cpp:1593
#32 0x00007f0281f404f8 in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1451
#33 0x00007f0281f91103 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x1f80ed0) at kernel/qeventdispatcher_glib.cpp:271
#34 0x00007f02772e0097 in g_main_context_dispatch (context=0x7f0258001710) at gmain.c:3154
#35 0x00007f02772e0097 in g_main_context_dispatch (context=context@entry=0x7f0258001710) at gmain.c:3769
#36 0x00007f02772e02c8 in g_main_context_iterate (context=context@entry=0x7f0258001710, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3840
#37 0x00007f02772e036c in g_main_context_iteration (context=0x7f0258001710, may_block=may_block@entry=1) at gmain.c:3901
#38 0x00007f0281f9150f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x1fa0660, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#39 0x00007f0281f3b63a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffe846ae770, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#40 0x00007f0282d4ebce in KJob::exec() (this=0x26640c0) at /usr/src/debug/kcoreaddons-5.18.0/src/lib/jobs/kjob.cpp:199
#41 0x00007f0283c8d5b2 in KMKernel::cleanup() () at /usr/lib64/libkmailprivate.so.5
#42 0x0000000000404522 in main ()

Reported using DrKonqi