Application: kmail (5.2.2)

Qt Version: 5.6.1
Frameworks Version: 5.23.0
Operating System: Linux 4.6.3-gentoo x86_64
Distribution: "Gentoo Base System release 2.2"

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

I was just clicking through my mails in a local folder to sort them manually into IMAP folders. Suddenly, kmail crashed.

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 0x7f3772175840 (LWP 9706))]

Thread 24 (Thread 0x7f37713d5700 (LWP 9707)):
#0  0x0000003eedce0d4d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x0000003ef080aac2 in poll (__timeout=-1, __nfds=1, __fds=0x7f37713d4c60) at /usr/include/bits/poll2.h:46
#2  _xcb_conn_wait (c=c@entry=0x10e89b0, cond=cond@entry=0x10e89f0, vector=vector@entry=0x0, count=count@entry=0x0) at /var/tmp/portage/x11-libs/libxcb-1.11.1/work/libxcb-1.11.1/src/xcb_conn.c:459
#3  0x0000003ef080c72f in xcb_wait_for_event (c=0x10e89b0) at /var/tmp/portage/x11-libs/libxcb-1.11.1/work/libxcb-1.11.1/src/xcb_in.c:693
#4  0x00007f3771c8c639 in QXcbEventReader::run (this=0x10f6b60) at qxcbconnection.cpp:1325
#5  0x0000003949aae928 in QThreadPrivate::start (arg=0x10f6b60) at thread/qthread_unix.cpp:341
#6  0x0000003eee407444 in start_thread (arg=0x7f37713d5700) at pthread_create.c:334
#7  0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7f376bfff700 (LWP 9708)):
#0  0x0000003eedce0d4d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00000035b0e5458c in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f3764003020, timeout=-1, context=0x7f3764000990) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:4135
#2  g_main_context_iterate (context=context@entry=0x7f3764000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3835
#3  0x00000035b0e5469c in g_main_context_iteration (context=0x7f3764000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3901
#4  0x0000003949cd7efc in QEventDispatcherGlib::processEvents (this=0x7f37640008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x0000003949c82f2a in QEventLoop::exec (this=this@entry=0x7f376bffed50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x0000003949aa9dc4 in QThread::exec (this=this@entry=0x394ae8c240 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:500
#7  0x000000394ae157d5 in QDBusConnectionManager::run (this=0x394ae8c240 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:189
#8  0x0000003949aae928 in QThreadPrivate::start (arg=0x394ae8c240 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:341
#9  0x0000003eee407444 in start_thread (arg=0x7f376bfff700) at pthread_create.c:334
#10 0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7f376adee700 (LWP 9709)):
#0  g_mutex_unlock (mutex=0x7f375c000990) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gthread-posix.c:1350
#1  0x00000035b0e53f18 in g_main_context_check (context=context@entry=0x7f375c000990, max_priority=<optimized out>, fds=fds@entry=0x7f375c002e70, n_fds=n_fds@entry=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3679
#2  0x00000035b0e54530 in g_main_context_iterate (context=context@entry=0x7f375c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3837
#3  0x00000035b0e5469c in g_main_context_iteration (context=0x7f375c000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3901
#4  0x0000003949cd7efc in QEventDispatcherGlib::processEvents (this=0x7f375c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x0000003949c82f2a in QEventLoop::exec (this=this@entry=0x7f376adedd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x0000003949aa9dc4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x0000003949aae928 in QThreadPrivate::start (arg=0x11e8570) at thread/qthread_unix.cpp:341
#8  0x0000003eee407444 in start_thread (arg=0x7f376adee700) at pthread_create.c:334
#9  0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7f376a5ed700 (LWP 9710)):
#0  QThreadData::current (createIfNecessary=createIfNecessary@entry=true) at thread/qthread_unix.cpp:216
#1  0x0000003949cd7841 in postEventSourcePrepare (timeout=0x0, s=0x7f37600012d0) at kernel/qeventdispatcher_glib.cpp:246
#2  postEventSourceCheck (source=source@entry=0x7f37600012d0) at kernel/qeventdispatcher_glib.cpp:263
#3  0x00000035b0e53f22 in g_main_context_check (context=context@entry=0x7f3760000990, max_priority=<optimized out>, fds=fds@entry=0x7f3760003020, n_fds=n_fds@entry=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3681
#4  0x00000035b0e54530 in g_main_context_iterate (context=context@entry=0x7f3760000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3837
#5  0x00000035b0e5469c in g_main_context_iteration (context=0x7f3760000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3901
#6  0x0000003949cd7efc in QEventDispatcherGlib::processEvents (this=0x7f37600008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#7  0x0000003949c82f2a in QEventLoop::exec (this=this@entry=0x7f376a5ecd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x0000003949aa9dc4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#9  0x0000003949aae928 in QThreadPrivate::start (arg=0x1296080) at thread/qthread_unix.cpp:341
#10 0x0000003eee407444 in start_thread (arg=0x7f376a5ed700) at pthread_create.c:334
#11 0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7f3769dec700 (LWP 9712)):
#0  0x00000035b0ea46e9 in g_mutex_lock (mutex=mutex@entry=0x7f3754000990) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gthread-posix.c:1338
#1  0x00000035b0e538a5 in g_main_context_prepare (context=context@entry=0x7f3754000990, priority=priority@entry=0x7f3769debc40) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3382
#2  0x00000035b0e544b8 in g_main_context_iterate (context=context@entry=0x7f3754000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3820
#3  0x00000035b0e5469c in g_main_context_iteration (context=0x7f3754000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3901
#4  0x0000003949cd7efc in QEventDispatcherGlib::processEvents (this=0x7f37540008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x0000003949c82f2a in QEventLoop::exec (this=this@entry=0x7f3769debd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x0000003949aa9dc4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x0000003949aae928 in QThreadPrivate::start (arg=0x11fb740) at thread/qthread_unix.cpp:341
#8  0x0000003eee407444 in start_thread (arg=0x7f3769dec700) at pthread_create.c:334
#9  0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7f37695eb700 (LWP 9714)):
#0  g_main_context_check (context=context@entry=0x7f3758000990, max_priority=2147483647, fds=fds@entry=0x7f3758002e20, n_fds=n_fds@entry=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3632
#1  0x00000035b0e54530 in g_main_context_iterate (context=context@entry=0x7f3758000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3837
#2  0x00000035b0e5469c in g_main_context_iteration (context=0x7f3758000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3901
#3  0x0000003949cd7efc in QEventDispatcherGlib::processEvents (this=0x7f37580008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#4  0x0000003949c82f2a in QEventLoop::exec (this=this@entry=0x7f37695ead80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x0000003949aa9dc4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#6  0x0000003949aae928 in QThreadPrivate::start (arg=0x11fbe90) at thread/qthread_unix.cpp:341
#7  0x0000003eee407444 in start_thread (arg=0x7f37695eb700) at pthread_create.c:334
#8  0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7f3768dda700 (LWP 9716)):
#0  0x0000003949aa6a09 in std::__atomic_base<QMutexData*>::compare_exchange_strong (__m2=std::memory_order_acquire, __m1=std::memory_order_acquire, __p2=0x1, __p1=@0x7f3768dd9b88: 0x0, this=0x12d88d8) at /usr/lib/gcc/x86_64-pc-linux-gnu/4.9.3/include/g++-v4/bits/atomic_base.h:848
#1  std::atomic<QMutexData*>::compare_exchange_strong (__p2=0x1, __m=std::memory_order_acquire, __p1=@0x7f3768dd9b88: 0x0, this=0x12d88d8) at /usr/lib/gcc/x86_64-pc-linux-gnu/4.9.3/include/g++-v4/atomic:449
#2  QAtomicOps<QMutexData*>::testAndSetAcquire<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=...) at ../../include/QtCore/../../src/corelib/arch/qatomic_cxx11.h:158
#3  QBasicAtomicPointer<QMutexData>::testAndSetAcquire (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, this=0x12d88d8) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:276
#4  QBasicMutex::fastTryLock (current=<synthetic pointer>, this=0x12d88d8) at thread/qmutex.h:82
#5  QMutex::lock (this=this@entry=0x12d88d8) at thread/qmutex.cpp:219
#6  0x0000003949cd7859 in QMutexLocker::QMutexLocker (m=0x12d88d8, this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:128
#7  QThreadData::canWaitLocked (this=0x12d88b0) at ../../include/QtCore/5.6.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:246
#8  postEventSourcePrepare (timeout=<synthetic pointer>, s=0x7f374c0012d0) at kernel/qeventdispatcher_glib.cpp:253
#9  postEventSourceCheck (source=source@entry=0x7f374c0012d0) at kernel/qeventdispatcher_glib.cpp:263
#10 0x00000035b0e53f22 in g_main_context_check (context=context@entry=0x7f374c000990, max_priority=<optimized out>, fds=fds@entry=0x7f374c003220, n_fds=n_fds@entry=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3681
#11 0x00000035b0e54530 in g_main_context_iterate (context=context@entry=0x7f374c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3837
#12 0x00000035b0e5469c in g_main_context_iteration (context=0x7f374c000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3901
#13 0x0000003949cd7efc in QEventDispatcherGlib::processEvents (this=0x7f374c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#14 0x0000003949c82f2a in QEventLoop::exec (this=this@entry=0x7f3768dd9d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#15 0x0000003949aa9dc4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#16 0x0000003949aae928 in QThreadPrivate::start (arg=0x1278780) at thread/qthread_unix.cpp:341
#17 0x0000003eee407444 in start_thread (arg=0x7f3768dda700) at pthread_create.c:334
#18 0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f3751f8d700 (LWP 9718)):
#0  0x00000035b0ea46e9 in g_mutex_lock (mutex=mutex@entry=0x7f3748000990) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gthread-posix.c:1338
#1  0x00000035b0e53f2e in g_main_context_check (context=context@entry=0x7f3748000990, max_priority=<optimized out>, fds=fds@entry=0x7f3748002e20, n_fds=n_fds@entry=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3683
#2  0x00000035b0e54530 in g_main_context_iterate (context=context@entry=0x7f3748000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3837
#3  0x00000035b0e5469c in g_main_context_iteration (context=0x7f3748000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3901
#4  0x0000003949cd7efc in QEventDispatcherGlib::processEvents (this=0x7f37480008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x0000003949c82f2a in QEventLoop::exec (this=this@entry=0x7f3751f8cd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x0000003949aa9dc4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x0000003949aae928 in QThreadPrivate::start (arg=0x1380c80) at thread/qthread_unix.cpp:341
#8  0x0000003eee407444 in start_thread (arg=0x7f3751f8d700) at pthread_create.c:334
#9  0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f375178c700 (LWP 9720)):
#0  g_mutex_unlock (mutex=0x7f3740000990) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gthread-posix.c:1350
#1  0x00000035b0e539cf in g_main_context_prepare (context=context@entry=0x7f3740000990, priority=priority@entry=0x7f375178bc40) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3440
#2  0x00000035b0e544b8 in g_main_context_iterate (context=context@entry=0x7f3740000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3820
#3  0x00000035b0e5469c in g_main_context_iteration (context=0x7f3740000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3901
#4  0x0000003949cd7efc in QEventDispatcherGlib::processEvents (this=0x7f37400008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x0000003949c82f2a in QEventLoop::exec (this=this@entry=0x7f375178bd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x0000003949aa9dc4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x0000003949aae928 in QThreadPrivate::start (arg=0x149f840) at thread/qthread_unix.cpp:341
#8  0x0000003eee407444 in start_thread (arg=0x7f375178c700) at pthread_create.c:334
#9  0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f3750f8b700 (LWP 9722)):
#0  pthread_cond_wait () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000000395b2d83b0 in WTF::TCMalloc_PageHeap::scavengerThread() () from /usr/lib64/libQt5WebKit.so.5
#2  0x000000395b2d83d9 in WTF::TCMalloc_PageHeap::runScavengerThread(void*) () from /usr/lib64/libQt5WebKit.so.5
#3  0x0000003eee407444 in start_thread (arg=0x7f3750f8b700) at pthread_create.c:334
#4  0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f36ffffd700 (LWP 9723)):
#0  0x0000003eedce0d4d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00000035b0e5458c in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f36f8003220, timeout=-1, context=0x7f36f8000990) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:4135
#2  g_main_context_iterate (context=context@entry=0x7f36f8000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3835
#3  0x00000035b0e5469c in g_main_context_iteration (context=0x7f36f8000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3901
#4  0x0000003949cd7efc in QEventDispatcherGlib::processEvents (this=0x7f36f80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x0000003949c82f2a in QEventLoop::exec (this=this@entry=0x7f36ffffcd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x0000003949aa9dc4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x0000003949aae928 in QThreadPrivate::start (arg=0x16a0e40) at thread/qthread_unix.cpp:341
#8  0x0000003eee407444 in start_thread (arg=0x7f36ffffd700) at pthread_create.c:334
#9  0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f36ff7fc700 (LWP 9725)):
#0  0x00000035b0ea46e9 in g_mutex_lock (mutex=mutex@entry=0x7f36f0000990) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gthread-posix.c:1338
#1  0x00000035b0e53f2e in g_main_context_check (context=context@entry=0x7f36f0000990, max_priority=<optimized out>, fds=fds@entry=0x7f36f0003020, n_fds=n_fds@entry=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3683
#2  0x00000035b0e54530 in g_main_context_iterate (context=context@entry=0x7f36f0000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3837
#3  0x00000035b0e5469c in g_main_context_iteration (context=0x7f36f0000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3901
#4  0x0000003949cd7efc in QEventDispatcherGlib::processEvents (this=0x7f36f00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x0000003949c82f2a in QEventLoop::exec (this=this@entry=0x7f36ff7fbd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x0000003949aa9dc4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x0000003949aae928 in QThreadPrivate::start (arg=0x17292f0) at thread/qthread_unix.cpp:341
#8  0x0000003eee407444 in start_thread (arg=0x7f36ff7fc700) at pthread_create.c:334
#9  0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f36feffb700 (LWP 9727)):
#0  0x0000003eedcdcd2d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00000035b0ea2f90 in read (__nbytes=16, __buf=0x7f36feffaba0, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x7f36f0002510) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gwakeup.c:210
#3  0x00000035b0e5400f in g_main_context_check (context=context@entry=0x7f36f4000990, max_priority=2147483647, fds=fds@entry=0x7f36f4003ed0, n_fds=n_fds@entry=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3632
#4  0x00000035b0e54530 in g_main_context_iterate (context=context@entry=0x7f36f4000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3837
#5  0x00000035b0e5469c in g_main_context_iteration (context=0x7f36f4000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3901
#6  0x0000003949cd7efc in QEventDispatcherGlib::processEvents (this=0x7f36f40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#7  0x0000003949c82f2a in QEventLoop::exec (this=this@entry=0x7f36feffad80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x0000003949aa9dc4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#9  0x0000003949aae928 in QThreadPrivate::start (arg=0x1737970) at thread/qthread_unix.cpp:341
#10 0x0000003eee407444 in start_thread (arg=0x7f36feffb700) at pthread_create.c:334
#11 0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f36fd804700 (LWP 9730)):
#0  pthread_cond_wait () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000000395afcfdbd in JSC::BlockAllocator::blockFreeingThreadMain() () from /usr/lib64/libQt5WebKit.so.5
#2  0x000000395b308d81 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib64/libQt5WebKit.so.5
#3  0x0000003eee407444 in start_thread (arg=0x7f36fd804700) at pthread_create.c:334
#4  0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f36fd003700 (LWP 9731)):
#0  pthread_cond_wait () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000000395afd0dd3 in JSC::GCThread::gcThreadMain() () from /usr/lib64/libQt5WebKit.so.5
#2  0x000000395b308d81 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib64/libQt5WebKit.so.5
#3  0x0000003eee407444 in start_thread (arg=0x7f36fd003700) at pthread_create.c:334
#4  0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f36fc802700 (LWP 9732)):
#0  pthread_cond_wait () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000000395afd0dd3 in JSC::GCThread::gcThreadMain() () from /usr/lib64/libQt5WebKit.so.5
#2  0x000000395b308d81 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib64/libQt5WebKit.so.5
#3  0x0000003eee407444 in start_thread (arg=0x7f36fc802700) at pthread_create.c:334
#4  0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f36e7fff700 (LWP 9733)):
#0  pthread_cond_wait () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000000395afd0dd3 in JSC::GCThread::gcThreadMain() () from /usr/lib64/libQt5WebKit.so.5
#2  0x000000395b308d81 in WTF::wtfThreadEntryPoint(void*) () from /usr/lib64/libQt5WebKit.so.5
#3  0x0000003eee407444 in start_thread (arg=0x7f36e7fff700) at pthread_create.c:334
#4  0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f36e73fe700 (LWP 9734)):
#0  timerSourceCheck (source=source@entry=0x7f36dc002870) at kernel/qeventdispatcher_glib.cpp:163
#1  0x00000035b0e53f22 in g_main_context_check (context=context@entry=0x7f36dc000990, max_priority=<optimized out>, fds=fds@entry=0x7f36dc002a20, n_fds=n_fds@entry=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3681
#2  0x00000035b0e54530 in g_main_context_iterate (context=context@entry=0x7f36dc000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3837
#3  0x00000035b0e5469c in g_main_context_iteration (context=0x7f36dc000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3901
#4  0x0000003949cd7efc in QEventDispatcherGlib::processEvents (this=0x7f36dc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x0000003949c82f2a in QEventLoop::exec (this=this@entry=0x7f36e73fdd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x0000003949aa9dc4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x0000003949aae928 in QThreadPrivate::start (arg=0x19c3b00) at thread/qthread_unix.cpp:341
#8  0x0000003eee407444 in start_thread (arg=0x7f36e73fe700) at pthread_create.c:334
#9  0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f36e6bfd700 (LWP 9750)):
#0  0x00000035b0ea46e9 in g_mutex_lock (mutex=mutex@entry=0x7f36d0000990) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gthread-posix.c:1338
#1  0x00000035b0e53d6e in g_main_context_check (context=context@entry=0x7f36d0000990, max_priority=2147483647, fds=fds@entry=0x7f36d0003220, n_fds=n_fds@entry=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3621
#2  0x00000035b0e54530 in g_main_context_iterate (context=context@entry=0x7f36d0000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3837
#3  0x00000035b0e5469c in g_main_context_iteration (context=0x7f36d0000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3901
#4  0x0000003949cd7efc in QEventDispatcherGlib::processEvents (this=0x7f36d00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x0000003949c82f2a in QEventLoop::exec (this=this@entry=0x7f36e6bfcd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x0000003949aa9dc4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x0000003949aae928 in QThreadPrivate::start (arg=0x19b2750) at thread/qthread_unix.cpp:341
#8  0x0000003eee407444 in start_thread (arg=0x7f36e6bfd700) at pthread_create.c:334
#9  0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f36d7fff700 (LWP 9753)):
#0  g_mutex_unlock (mutex=0x7f36cc000990) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gthread-posix.c:1350
#1  0x00000035b0e539cf in g_main_context_prepare (context=context@entry=0x7f36cc000990, priority=priority@entry=0x7f36d7ffec40) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3440
#2  0x00000035b0e544b8 in g_main_context_iterate (context=context@entry=0x7f36cc000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3820
#3  0x00000035b0e5469c in g_main_context_iteration (context=0x7f36cc000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3901
#4  0x0000003949cd7efc in QEventDispatcherGlib::processEvents (this=0x7f36cc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x0000003949c82f2a in QEventLoop::exec (this=this@entry=0x7f36d7ffed80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x0000003949aa9dc4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x0000003949aae928 in QThreadPrivate::start (arg=0x1952be0) at thread/qthread_unix.cpp:341
#8  0x0000003eee407444 in start_thread (arg=0x7f36d7fff700) at pthread_create.c:334
#9  0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f36d687a700 (LWP 9760)):
#0  g_mutex_unlock (mutex=0x7f36c8000990) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gthread-posix.c:1350
#1  0x00000035b0e53f18 in g_main_context_check (context=context@entry=0x7f36c8000990, max_priority=<optimized out>, fds=fds@entry=0x7f36c8003020, n_fds=n_fds@entry=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3679
#2  0x00000035b0e54530 in g_main_context_iterate (context=context@entry=0x7f36c8000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3837
#3  0x00000035b0e5469c in g_main_context_iteration (context=0x7f36c8000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3901
#4  0x0000003949cd7efc in QEventDispatcherGlib::processEvents (this=0x7f36c80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#5  0x0000003949c82f2a in QEventLoop::exec (this=this@entry=0x7f36d6879d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x0000003949aa9dc4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x0000003949aae928 in QThreadPrivate::start (arg=0x236e520) at thread/qthread_unix.cpp:341
#8  0x0000003eee407444 in start_thread (arg=0x7f36d687a700) at pthread_create.c:334
#9  0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f36d55e1700 (LWP 9776)):
#0  0x0000003949aa6a09 in std::__atomic_base<QMutexData*>::compare_exchange_strong (__m2=std::memory_order_acquire, __m1=std::memory_order_acquire, __p2=0x1, __p1=@0x7f36d55e0b88: 0x0, this=0x1c2ff78) at /usr/lib/gcc/x86_64-pc-linux-gnu/4.9.3/include/g++-v4/bits/atomic_base.h:848
#1  std::atomic<QMutexData*>::compare_exchange_strong (__p2=0x1, __m=std::memory_order_acquire, __p1=@0x7f36d55e0b88: 0x0, this=0x1c2ff78) at /usr/lib/gcc/x86_64-pc-linux-gnu/4.9.3/include/g++-v4/atomic:449
#2  QAtomicOps<QMutexData*>::testAndSetAcquire<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=...) at ../../include/QtCore/../../src/corelib/arch/qatomic_cxx11.h:158
#3  QBasicAtomicPointer<QMutexData>::testAndSetAcquire (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, this=0x1c2ff78) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:276
#4  QBasicMutex::fastTryLock (current=<synthetic pointer>, this=0x1c2ff78) at thread/qmutex.h:82
#5  QMutex::lock (this=this@entry=0x1c2ff78) at thread/qmutex.cpp:219
#6  0x0000003949cd7859 in QMutexLocker::QMutexLocker (m=0x1c2ff78, this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:128
#7  QThreadData::canWaitLocked (this=0x1c2ff50) at ../../include/QtCore/5.6.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:246
#8  postEventSourcePrepare (timeout=<synthetic pointer>, s=0x7f36bc0012d0) at kernel/qeventdispatcher_glib.cpp:253
#9  postEventSourceCheck (source=source@entry=0x7f36bc0012d0) at kernel/qeventdispatcher_glib.cpp:263
#10 0x00000035b0e53f22 in g_main_context_check (context=context@entry=0x7f36bc000990, max_priority=<optimized out>, fds=fds@entry=0x7f36bc003220, n_fds=n_fds@entry=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3681
#11 0x00000035b0e54530 in g_main_context_iterate (context=context@entry=0x7f36bc000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3837
#12 0x00000035b0e5469c in g_main_context_iteration (context=0x7f36bc000990, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3901
#13 0x0000003949cd7efc in QEventDispatcherGlib::processEvents (this=0x7f36bc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#14 0x0000003949c82f2a in QEventLoop::exec (this=this@entry=0x7f36d55e0d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#15 0x0000003949aa9dc4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#16 0x0000003949aae928 in QThreadPrivate::start (arg=0x1c1f940) at thread/qthread_unix.cpp:341
#17 0x0000003eee407444 in start_thread (arg=0x7f36d55e1700) at pthread_create.c:334
#18 0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f36c3fff700 (LWP 9952)):
#0  pthread_cond_wait () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000000395859bc82 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x000000395859be29 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x0000003eee407444 in start_thread (arg=0x7f36c3fff700) at pthread_create.c:334
#4  0x0000003eedce9dad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f3772175840 (LWP 9706)):
[KCrash Handler]
#6  MessageViewer::ObjectTreeParser::okVerify (this=0x7ffcd2eb7ef0, data=..., cryptProto=0x0, messagePart=..., verifiedText=..., signatures=std::vector of length 0, capacity 0, signature=..., sign=0x0) at /var/tmp/portage/kde-apps/messagelib-16.04.2/work/messagelib-16.04.2/messageviewer/src/viewer/objecttreeparser.cpp:1351
#7  0x0000003961e98499 in MessageViewer::CryptoMessagePart::startVerificationDetached (this=this@entry=0x93842a0, text=..., textNode=textNode@entry=0x0, signature=...) at /var/tmp/portage/kde-apps/messagelib-16.04.2/work/messagelib-16.04.2/messageviewer/src/viewer/messagepart.cpp:1776
#8  0x0000003961e98736 in MessageViewer::CryptoMessagePart::startVerification (this=0x93842a0, text=..., aCodec=0x1157d70) at /var/tmp/portage/kde-apps/messagelib-16.04.2/work/messagelib-16.04.2/messageviewer/src/viewer/messagepart.cpp:1764
#9  0x0000003961e9ee26 in MessageViewer::TextMessagePart::parseContent (this=this@entry=0x92afb90) at /var/tmp/portage/kde-apps/messagelib-16.04.2/work/messagelib-16.04.2/messageviewer/src/viewer/messagepart.cpp:1307
#10 0x0000003961e9f180 in MessageViewer::TextMessagePart::TextMessagePart (this=0x92afb90, otp=<optimized out>, node=0x955ffe0, drawFrame=<optimized out>, showLink=<optimized out>, decryptMessage=<optimized out>, asIcon=MessageViewer::NoIcon) at /var/tmp/portage/kde-apps/messagelib-16.04.2/work/messagelib-16.04.2/messageviewer/src/viewer/messagepart.cpp:1243
#11 0x0000003961e8bc82 in MessageViewer::ObjectTreeParser::processTextPlainSubtype (this=<optimized out>, curNode=curNode@entry=0x955ffe0, result=...) at /var/tmp/portage/kde-apps/messagelib-16.04.2/work/messagelib-16.04.2/messageviewer/src/viewer/objecttreeparser.cpp:940
#12 0x0000003961e6b165 in (anonymous namespace)::TextPlainBodyPartFormatter::process (this=<optimized out>, part=...) at /var/tmp/portage/kde-apps/messagelib-16.04.2/work/messagelib-16.04.2/messageviewer/src/viewer/bodypartformatter.cpp:187
#13 0x0000003961e8f3c6 in MessageViewer::ObjectTreeParser::parseObjectTreeInternal (this=this@entry=0x7ffcd2eb7ef0, node=node@entry=0x955ffe0) at /var/tmp/portage/kde-apps/messagelib-16.04.2/work/messagelib-16.04.2/messageviewer/src/viewer/objecttreeparser.cpp:343
#14 0x0000003961e8faaa in MessageViewer::ObjectTreeParser::parseObjectTree (this=this@entry=0x7ffcd2eb7ef0, node=node@entry=0x955ffe0) at /var/tmp/portage/kde-apps/messagelib-16.04.2/work/messagelib-16.04.2/messageviewer/src/viewer/objecttreeparser.cpp:270
#15 0x0000003961eb89fd in MessageViewer::ViewerPrivate::parseContent (this=this@entry=0x149e870, content=0x955ffe0) at /var/tmp/portage/kde-apps/messagelib-16.04.2/work/messagelib-16.04.2/messageviewer/src/viewer/viewer_p.cpp:957
#16 0x0000003961eb9004 in MessageViewer::ViewerPrivate::displayMessage (this=this@entry=0x149e870) at /var/tmp/portage/kde-apps/messagelib-16.04.2/work/messagelib-16.04.2/messageviewer/src/viewer/viewer_p.cpp:830
#17 0x0000003961eb9bc6 in MessageViewer::ViewerPrivate::updateReaderWin (this=0x149e870) at /var/tmp/portage/kde-apps/messagelib-16.04.2/work/messagelib-16.04.2/messageviewer/src/viewer/viewer_p.cpp:2131
#18 0x0000003949cafd8d in QtPrivate::QSlotObjectBase::call (a=0x7ffcd2eb8200, r=0x149e870, this=0x1836890) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#19 QMetaObject::activate (sender=sender@entry=0x149e8e0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3715
#20 0x0000003949cb0347 in QMetaObject::activate (sender=sender@entry=0x149e8e0, m=m@entry=0x3949ecbf00 <QTimer::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3595
#21 0x0000003949d2d300 in QTimer::timeout (this=this@entry=0x149e8e0) at .moc/moc_qtimer.cpp:198
#22 0x0000003949cbd868 in QTimer::timerEvent (this=0x149e8e0, e=<optimized out>) at kernel/qtimer.cpp:247
#23 0x0000003949cb0c8b in QObject::event (this=0x149e8e0, e=<optimized out>) at kernel/qobject.cpp:1278
#24 0x000000394b15b86c in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x149e8e0, e=0x7ffcd2eb85b0) at kernel/qapplication.cpp:3804
#25 0x000000394b163312 in QApplication::notify (this=0x7ffcd2eb8e70, receiver=0x149e8e0, e=0x7ffcd2eb85b0) at kernel/qapplication.cpp:3561
#26 0x0000003949c85048 in QCoreApplication::notifyInternal2 (receiver=0x149e8e0, event=event@entry=0x7ffcd2eb85b0) at kernel/qcoreapplication.cpp:1015
#27 0x0000003949cd6d3e in QCoreApplication::sendEvent (event=0x7ffcd2eb85b0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:225
#28 QTimerInfoList::activateTimers (this=0x1121fe0) at kernel/qtimerinfo_unix.cpp:637
#29 0x0000003949cd7241 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:176
#30 0x00000035b0e542ed in g_main_dispatch (context=0x7f376c0016f0) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3154
#31 g_main_context_dispatch (context=context@entry=0x7f376c0016f0) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3769
#32 0x00000035b0e545f0 in g_main_context_iterate (context=context@entry=0x7f376c0016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3840
#33 0x00000035b0e5469c in g_main_context_iteration (context=0x7f376c0016f0, may_block=1) at /var/tmp/portage/dev-libs/glib-2.46.2-r3/work/glib-2.46.2/glib/gmain.c:3901
#34 0x0000003949cd7ee7 in QEventDispatcherGlib::processEvents (this=0x112fe20, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#35 0x0000003949c82f2a in QEventLoop::exec (this=this@entry=0x7ffcd2eb8800, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#36 0x0000003949c8b29c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1285
#37 0x000000394a8f45fc in QGuiApplication::exec () at kernel/qguiapplication.cpp:1607
#38 0x000000394b15b7c5 in QApplication::exec () at kernel/qapplication.cpp:2979
#39 0x0000000000403b67 in main (argc=1, argv=0x7ffcd2eb90a8) at /var/tmp/portage/kde-apps/kdepim-16.04.2/work/kdepim-16.04.2/kmail/main.cpp:159

Reported using DrKonqi