Application: kmail (5.1.1)

Qt Version: 5.5.1
Operating System: Linux 4.5.0-rc4-2.gea92baf-default x86_64
Distribution: "openSUSE Tumbleweed (20160212) (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed: Launch kmail by hotkey, krunner, or menu the first time the desktop is opened this crash dialog box appear a few secondes before the main windows start.
After the main windows start, kmail seems to work correctly.

The crash can be reproduced every time.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f3da855f940 (LWP 3862))]

Thread 16 (Thread 0x7f3d82820700 (LWP 3883)):
#0  0x00007f3da559c24d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f3d9852b432 in _xcb_conn_wait (__timeout=-1, __nfds=1, __fds=0x7f3d8281fb80) at /usr/include/bits/poll2.h:46
#2  0x00007f3d9852b432 in _xcb_conn_wait (c=c@entry=0xd26570, cond=cond@entry=0xd265b0, vector=vector@entry=0x0, count=count@entry=0x0) at xcb_conn.c:459
#3  0x00007f3d9852d007 in xcb_wait_for_event (c=0xd26570) at xcb_in.c:693
#4  0x00007f3d84b79e29 in QXcbEventReader::run() (this=0xd33790) at qxcbconnection.cpp:1229
#5  0x00007f3da5ea394f in QThreadPrivate::start(void*) (arg=0xd33790) at thread/qthread_unix.cpp:331
#6  0x00007f3d9b9344a4 in start_thread (arg=0x7f3d82820700) at pthread_create.c:334
#7  0x00007f3da55a4bdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f3d7bfff700 (LWP 3900)):
#0  0x00007f3d9b45a554 in g_mutex_unlock (mutex=0x7f3d740009b0) at gthread-posix.c:1350
#1  0x00007f3d9b416e6a in g_main_context_dispatch (context=context@entry=0x7f3d740009b0) at gmain.c:3772
#2  0x00007f3d9b4172f8 in g_main_context_iterate (context=context@entry=0x7f3d740009b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3840
#3  0x00007f3d9b41739c in g_main_context_iteration (context=0x7f3d740009b0, may_block=may_block@entry=1) at gmain.c:3901
#4  0x00007f3da60c852b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3d740008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f3da607263a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f3d7bffec90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f3da5e9eb1c in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f3da5ea394f in QThreadPrivate::start(void*) (arg=0xeccc80) at thread/qthread_unix.cpp:331
#8  0x00007f3d9b9344a4 in start_thread (arg=0x7f3d7bfff700) at pthread_create.c:334
#9  0x00007f3da55a4bdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f3d79994700 (LWP 6142)):
#0  0x00007f3da559c24d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f3d9b417294 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f3d68002e70, timeout=<optimized out>, context=0x7f3d68002cd0) at gmain.c:4135
#2  0x00007f3d9b417294 in g_main_context_iterate (context=context@entry=0x7f3d68002cd0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3835
#3  0x00007f3d9b41739c in g_main_context_iteration (context=0x7f3d68002cd0, may_block=may_block@entry=1) at gmain.c:3901
#4  0x00007f3da60c852b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3d68002c00, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f3da607263a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f3d79993c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f3da5e9eb1c in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f3da5ea394f in QThreadPrivate::start(void*) (arg=0xef59a0) at thread/qthread_unix.cpp:331
#8  0x00007f3d9b9344a4 in start_thread (arg=0x7f3d79994700) at pthread_create.c:334
#9  0x00007f3da55a4bdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f3d7a3ad700 (LWP 6144)):
#0  0x00007f3da559c24d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f3d9b417294 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f3d64003040, timeout=<optimized out>, context=0x7f3d64002ef0) at gmain.c:4135
#2  0x00007f3d9b417294 in g_main_context_iterate (context=context@entry=0x7f3d64002ef0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3835
#3  0x00007f3d9b41739c in g_main_context_iteration (context=0x7f3d64002ef0, may_block=may_block@entry=1) at gmain.c:3901
#4  0x00007f3da60c852b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3d64002e20, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f3da607263a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f3d7a3acc90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f3da5e9eb1c in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f3da5ea394f in QThreadPrivate::start(void*) (arg=0xef8440) at thread/qthread_unix.cpp:331
#8  0x00007f3d9b9344a4 in start_thread (arg=0x7f3d7a3ad700) at pthread_create.c:334
#9  0x00007f3da55a4bdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f3d7abae700 (LWP 6146)):
#0  0x00007f3d9b93a07f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f3d963963bb in  () at /usr/lib64/libQt5WebKit.so.5
#2  0x00007f3d963963f9 in  () at /usr/lib64/libQt5WebKit.so.5
#3  0x00007f3d9b9344a4 in start_thread (arg=0x7f3d7abae700) at pthread_create.c:334
#4  0x00007f3da55a4bdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f3d7b3af700 (LWP 6147)):
#0  0x00007f3d9b93ccfc in __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f3d9b936bb2 in __GI___pthread_mutex_lock (mutex=0x7f3d9a6cd8d0) at ../nptl/pthread_mutex_lock.c:116
#2  0x00007f3d9a44bf2c in  () at /usr/X11R6/lib64/libGL.so.1
#3  0x00007f3d9a450e01 in  () at /usr/X11R6/lib64/libGL.so.1
#4  0x00007f3d9a451308 in  () at /usr/X11R6/lib64/libGL.so.1
#5  0x00007f3d8f655102 in  () at /usr/lib64/tls/libnvidia-tls.so.361.28
#6  0x00007f3d9b459290 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f3d7b3aeab0, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#7  0x00007f3d9b459290 in g_wakeup_acknowledge (wakeup=0x7f3d70002780) at gwakeup.c:210
#8  0x00007f3d9b416dc4 in g_main_context_check (context=context@entry=0x7f3d6c004130, max_priority=2147483647, fds=fds@entry=0x7f3d6c008dc0, n_fds=n_fds@entry=1) at gmain.c:3632
#9  0x00007f3d9b417238 in g_main_context_iterate (context=context@entry=0x7f3d6c004130, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3837
#10 0x00007f3d9b41739c in g_main_context_iteration (context=0x7f3d6c004130, may_block=may_block@entry=1) at gmain.c:3901
#11 0x00007f3da60c852b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3d6c0ba1d0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#12 0x00007f3da607263a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f3d7b3aec90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#13 0x00007f3da5e9eb1c in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#14 0x00007f3da5ea394f in QThreadPrivate::start(void*) (arg=0x15c8580) at thread/qthread_unix.cpp:331
#15 0x00007f3d9b9344a4 in start_thread (arg=0x7f3d7b3af700) at pthread_create.c:334
#16 0x00007f3da55a4bdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f3d1edbb700 (LWP 6149)):
#0  0x00007f3d9b93cd9a in __lll_unlock_wake () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:371
#1  0x00007f3d9b938121 in __pthread_mutex_unlock_usercnt (mutex=0x7f3d9a6cd8d0, decr=<optimized out>) at pthread_mutex_unlock.c:57
#2  0x00007f3d9a44bc45 in  () at /usr/X11R6/lib64/libGL.so.1
#3  0x00007f3d9a4512ab in  () at /usr/X11R6/lib64/libGL.so.1
#4  0x00007f3d8f6550f1 in  () at /usr/lib64/tls/libnvidia-tls.so.361.28
#5  0x00007f3d9b459290 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f3d1edbaab0, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#6  0x00007f3d9b459290 in g_wakeup_acknowledge (wakeup=0x7f3d64002200) at gwakeup.c:210
#7  0x00007f3d9b416dc4 in g_main_context_check (context=context@entry=0x7f3d180009b0, max_priority=2147483647, fds=fds@entry=0x7f3d18001630, n_fds=n_fds@entry=1) at gmain.c:3632
#8  0x00007f3d9b417238 in g_main_context_iterate (context=context@entry=0x7f3d180009b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3837
#9  0x00007f3d9b41739c in g_main_context_iteration (context=0x7f3d180009b0, may_block=may_block@entry=1) at gmain.c:3901
#10 0x00007f3da60c852b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3d180008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#11 0x00007f3da607263a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f3d1edbac90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#12 0x00007f3da5e9eb1c in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#13 0x00007f3da5ea394f in QThreadPrivate::start(void*) (arg=0x1495600) at thread/qthread_unix.cpp:331
#14 0x00007f3d9b9344a4 in start_thread (arg=0x7f3d1edbb700) at pthread_create.c:334
#15 0x00007f3da55a4bdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f3d1e5ba700 (LWP 6151)):
#0  0x00007f3da559822d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f3d8f655073 in  () at /usr/lib64/tls/libnvidia-tls.so.361.28
#2  0x00007f3d9b459290 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f3d1e5b9ab0, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#3  0x00007f3d9b459290 in g_wakeup_acknowledge (wakeup=0x7f3d6c002390) at gwakeup.c:210
#4  0x00007f3d9b416dc4 in g_main_context_check (context=context@entry=0x7f3d100009b0, max_priority=2147483647, fds=fds@entry=0x7f3d100013c0, n_fds=n_fds@entry=1) at gmain.c:3632
#5  0x00007f3d9b417238 in g_main_context_iterate (context=context@entry=0x7f3d100009b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3837
#6  0x00007f3d9b41739c in g_main_context_iteration (context=0x7f3d100009b0, may_block=may_block@entry=1) at gmain.c:3901
#7  0x00007f3da60c852b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f3d100008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#8  0x00007f3da607263a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f3d1e5b9c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#9  0x00007f3da5e9eb1c in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#10 0x00007f3da5ea394f in QThreadPrivate::start(void*) (arg=0x11c64f0) at thread/qthread_unix.cpp:331
#11 0x00007f3d9b9344a4 in start_thread (arg=0x7f3d1e5ba700) at pthread_create.c:334
#12 0x00007f3da55a4bdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f3d1cc13700 (LWP 6153)):
#0  0x00007f3d9b93a07f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f3d960a4764 in  () at /usr/lib64/libQt5WebKit.so.5
#2  0x00007f3d963c5441 in  () at /usr/lib64/libQt5WebKit.so.5
#3  0x00007f3d9b9344a4 in start_thread (arg=0x7f3d1cc13700) at pthread_create.c:334
#4  0x00007f3da55a4bdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f3d0ffff700 (LWP 6154)):
#0  0x00007f3d9b93a07f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f3d960a5793 in  () at /usr/lib64/libQt5WebKit.so.5
#2  0x00007f3d963c5441 in  () at /usr/lib64/libQt5WebKit.so.5
#3  0x00007f3d9b9344a4 in start_thread (arg=0x7f3d0ffff700) at pthread_create.c:334
#4  0x00007f3da55a4bdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f3d0f7fe700 (LWP 6155)):
#0  0x00007f3d9b93a07f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f3d960a5793 in  () at /usr/lib64/libQt5WebKit.so.5
#2  0x00007f3d963c5441 in  () at /usr/lib64/libQt5WebKit.so.5
#3  0x00007f3d9b9344a4 in start_thread (arg=0x7f3d0f7fe700) at pthread_create.c:334
#4  0x00007f3da55a4bdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f3d07fff700 (LWP 6156)):
#0  0x00007f3d9b93a07f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f3d960a5793 in  () at /usr/lib64/libQt5WebKit.so.5
#2  0x00007f3d963c5441 in  () at /usr/lib64/libQt5WebKit.so.5
#3  0x00007f3d9b9344a4 in start_thread (arg=0x7f3d07fff700) at pthread_create.c:334
#4  0x00007f3da55a4bdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f3d0effd700 (LWP 6157)):
#0  0x00007f3d9b93a07f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f3d960a5793 in  () at /usr/lib64/libQt5WebKit.so.5
#2  0x00007f3d963c5441 in  () at /usr/lib64/libQt5WebKit.so.5
#3  0x00007f3d9b9344a4 in start_thread (arg=0x7f3d0effd700) at pthread_create.c:334
#4  0x00007f3da55a4bdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f3d0e7fc700 (LWP 6158)):
#0  0x00007f3d9b93a07f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f3d960a5793 in  () at /usr/lib64/libQt5WebKit.so.5
#2  0x00007f3d963c5441 in  () at /usr/lib64/libQt5WebKit.so.5
#3  0x00007f3d9b9344a4 in start_thread (arg=0x7f3d0e7fc700) at pthread_create.c:334
#4  0x00007f3da55a4bdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f3d0dffb700 (LWP 6159)):
#0  0x00007f3d9b93a07f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f3d960a5793 in  () at /usr/lib64/libQt5WebKit.so.5
#2  0x00007f3d963c5441 in  () at /usr/lib64/libQt5WebKit.so.5
#3  0x00007f3d9b9344a4 in start_thread (arg=0x7f3d0dffb700) at pthread_create.c:334
#4  0x00007f3da55a4bdd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f3da855f940 (LWP 3862)):
[KCrash Handler]
#6  0x00007f3da7dbfc80 in  () at /usr/lib64/libkmailprivate.so.5
#7  0x00007f3da7def40c in KMMainWidget::updateMessageActionsDelayed() () at /usr/lib64/libkmailprivate.so.5
#8  0x00007f3da7defcb3 in KMMainWidget::updateMessageActions(bool) () at /usr/lib64/libkmailprivate.so.5
#9  0x00007f3da7e002c1 in KMMainWidget::setupActions() () at /usr/lib64/libkmailprivate.so.5
#10 0x00007f3da7e0476b in KMMainWidget::KMMainWidget(QWidget*, KXMLGUIClient*, KActionCollection*, QExplicitlySharedDataPointer<KSharedConfig>) () at /usr/lib64/libkmailprivate.so.5
#11 0x00007f3da7db2662 in  () at /usr/lib64/libkmailprivate.so.5
#12 0x00007f3da7dc31c7 in KMKernel::openReader(bool) () at /usr/lib64/libkmailprivate.so.5
#13 0x00007f3da7dcdc7c 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 0x00007f3da7dcf1e3 in KMKernel::handleCommandLine(bool, QStringList const&, QString const&) () at /usr/lib64/libkmailprivate.so.5
#15 0x0000000000404f03 in KMailApplication::activate(QStringList const&, QString const&) ()
#16 0x00007f3da81c997e in KontactInterface::PimUniqueApplication::newInstance(QByteArray const&, QStringList const&, QString const&) () at /usr/lib64/libKF5KontactInterface.so.5
#17 0x00007f3da81caa72 in  () at /usr/lib64/libKF5KontactInterface.so.5
#18 0x00007f3da81cadc3 in KontactInterface::PimUniqueApplication::qt_metacall(QMetaObject::Call, int, void**) () at /usr/lib64/libKF5KontactInterface.so.5
#19 0x00007f3da457a433 in QDBusConnectionPrivate::deliverCall(QObject*, int, QDBusMessage const&, QVector<int> const&, int) (this=this@entry=0xd8e110, object=object@entry=0x7ffc546fb830, msg=..., metaTypes=..., slotIdx=30) at qdbusintegrator.cpp:978
#20 0x00007f3da457dfd0 in QDBusConnectionPrivate::activateCall(QObject*, int, QDBusMessage const&) (this=this@entry=0xd8e110, object=0x7ffc546fb830, flags=81, msg=...) at qdbusintegrator.cpp:885
#21 0x00007f3da457e92b in QDBusConnectionPrivate::activateObject(QDBusConnectionPrivate::ObjectTreeNode&, QDBusMessage const&, int) (this=0xd8e110, node=..., msg=..., pathStartPos=<optimized out>) at qdbusintegrator.cpp:1486
#22 0x00007f3da457fbbe in QDBusActivateObjectEvent::placeMetaCall(QObject*) (this=0xf478d0) at qdbusintegrator.cpp:1580
#23 0x00007f3da60a2d79 in QObject::event(QEvent*) (this=this@entry=0x7ffc546fb830, e=e@entry=0xf478d0) at kernel/qobject.cpp:1239
#24 0x00007f3da607a24c in QCoreApplication::event(QEvent*) (this=this@entry=0x7ffc546fb830, e=e@entry=0xf478d0) at kernel/qcoreapplication.cpp:1728
#25 0x00007f3da65b51f4 in QGuiApplication::event(QEvent*) (this=this@entry=0x7ffc546fb830, e=e@entry=0xf478d0) at kernel/qguiapplication.cpp:1546
#26 0x00007f3da7238ec8 in QApplication::event(QEvent*) (this=0x7ffc546fb830, e=0xf478d0) at kernel/qapplication.cpp:2074
#27 0x00007f3da72358cc in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0xd05840, receiver=receiver@entry=0x7ffc546fb830, e=e@entry=0xf478d0) at kernel/qapplication.cpp:3716
#28 0x00007f3da723a9d6 in QApplication::notify(QObject*, QEvent*) (this=0x7ffc546fb830, receiver=0x7ffc546fb830, e=0xf478d0) at kernel/qapplication.cpp:3499
#29 0x00007f3da6074cf3 in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7ffc546fb830, receiver=0x7ffc546fb830, event=event@entry=0xf478d0) at kernel/qcoreapplication.cpp:965
#30 0x00007f3da6077016 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (event=0xf478d0, receiver=<optimized out>) at kernel/qcoreapplication.h:224
#31 0x00007f3da6077016 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0xd00b90) at kernel/qcoreapplication.cpp:1593
#32 0x00007f3da60774f8 in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1451
#33 0x00007f3da60c8103 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0xd626e0) at kernel/qeventdispatcher_glib.cpp:271
#34 0x00007f3d9b4170c7 in g_main_context_dispatch (context=0x7f3d7c001710) at gmain.c:3154
#35 0x00007f3d9b4170c7 in g_main_context_dispatch (context=context@entry=0x7f3d7c001710) at gmain.c:3769
#36 0x00007f3d9b4172f8 in g_main_context_iterate (context=context@entry=0x7f3d7c001710, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3840
#37 0x00007f3d9b41739c in g_main_context_iteration (context=0x7f3d7c001710, may_block=may_block@entry=1) at gmain.c:3901
#38 0x00007f3da60c850f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0xd5dce0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#39 0x00007f3da607263a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffc546fb180, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#40 0x00007f3da6e85bce in KJob::exec() (this=0x11e26e0) at /usr/src/debug/kcoreaddons-5.18.0/src/lib/jobs/kjob.cpp:199
#41 0x00007f3da7dc45b2 in KMKernel::cleanup() () at /usr/lib64/libkmailprivate.so.5
#42 0x0000000000404522 in main ()

Reported using DrKonqi