Application: kontact (5.2.3)

Qt Version: 5.6.1
Frameworks Version: 5.28.0
Operating System: Linux 4.4.0-59-generic x86_64
Distribution: Ubuntu 16.04.1 LTS

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

I configered Kontact - Mail - Appearance and on the last tab I deleted some message tags (German: "Nachrichten-Markierungen"). 

After confirming changes, Kontact crashed.

BTW: The reason for deleting the tags was, that my original tags had doubled and mutliplied themselves over time. This I deleted all but one of the identical tags. maybe this behaviour contributed to the crash.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f65aaee6940 (LWP 2918))]

Thread 38 (Thread 0x7f64925f2700 (LWP 6958)):
#0  0x00007f65bbd10ae4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f65bbccb9b0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc2cb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f654821a000, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f64925f1c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x4b36680) at thread/qthread_unix.cpp:341
#8  0x00007f65bc4f66ba in start_thread (arg=0x7f64925f2700) at pthread_create.c:333
#9  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 37 (Thread 0x7f6492df3700 (LWP 6956)):
#0  0x00007fff29d999a9 in ?? ()
#1  0x00007fff29d99cd5 in clock_gettime ()
#2  0x00007f65c2573c86 in __GI___clock_gettime (clock_id=1, tp=tp@entry=0x7f6492df29e0) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007f65c2f196c6 in qt_clock_gettime (ts=0x7f6492df29e0, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#4  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:156
#5  qt_gettime () at tools/qelapsedtimer_unix.cpp:165
#6  0x00007f65c3094f09 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f6544000e00) at kernel/qtimerinfo_unix.cpp:84
#7  0x00007f65c3095475 in QTimerInfoList::timerWait (this=0x7f6544000e00, tm=...) at kernel/qtimerinfo_unix.cpp:381
#8  0x00007f65c309685e in timerSourcePrepareHelper (timeout=0x7f6492df2ab4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:126
#9  timerSourcePrepare (source=<optimized out>, timeout=0x7f6492df2ab4) at kernel/qeventdispatcher_glib.cpp:159
#10 0x00007f65bbccb92d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f65bbccc2cb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f65440014e0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#14 0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f6492df2c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#15 0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#16 0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x6a85d90) at thread/qthread_unix.cpp:341
#17 0x00007f65bc4f66ba in start_thread (arg=0x7f6492df3700) at pthread_create.c:333
#18 0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 36 (Thread 0x7f64a0a95700 (LWP 6954)):
#0  0x00007f65bbd10ac9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f65bbccbddc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc340 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f653c009480, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f64a0a94c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x4e31e40) at thread/qthread_unix.cpp:341
#8  0x00007f65bc4f66ba in start_thread (arg=0x7f64a0a95700) at pthread_create.c:333
#9  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 35 (Thread 0x7f64a254d700 (LWP 6952)):
#0  0x00007f65bbcc9444 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f65bbccb8cb in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc2cb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f6540001040, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f64a254cc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x41ab710) at thread/qthread_unix.cpp:341
#8  0x00007f65bc4f66ba in start_thread (arg=0x7f64a254d700) at pthread_create.c:333
#9  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 34 (Thread 0x7f64a35ba700 (LWP 6950)):
#0  0x00007f65c2e3d050 in clock_gettime@plt () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007f65c2f196c6 in qt_clock_gettime (ts=0x7f64a35b99e0, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#2  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:156
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:165
#4  0x00007f65c3094f09 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f6530008cf0) at kernel/qtimerinfo_unix.cpp:84
#5  0x00007f65c3095475 in QTimerInfoList::timerWait (this=0x7f6530008cf0, tm=...) at kernel/qtimerinfo_unix.cpp:381
#6  0x00007f65c309685e in timerSourcePrepareHelper (timeout=0x7f64a35b9ab4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:126
#7  timerSourcePrepare (source=<optimized out>, timeout=0x7f64a35b9ab4) at kernel/qeventdispatcher_glib.cpp:159
#8  0x00007f65bbccb92d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f65bbccc2cb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f6530079280, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#12 0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f64a35b9c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#13 0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#14 0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x43f5800) at thread/qthread_unix.cpp:341
#15 0x00007f65bc4f66ba in start_thread (arg=0x7f64a35ba700) at pthread_create.c:333
#16 0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 33 (Thread 0x7f64a5150700 (LWP 6948)):
#0  0x00007f65bbd10ac9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f65bbccb807 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc2cb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f64cc1337e0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f64a514fc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x4e4da50) at thread/qthread_unix.cpp:341
#8  0x00007f65bc4f66ba in start_thread (arg=0x7f64a5150700) at pthread_create.c:333
#9  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 32 (Thread 0x7f64a5f81700 (LWP 6946)):
#0  0x00007f65c255569d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f65bbd0f740 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccbe84 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65bbccc340 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f64c8005320, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#6  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f64a5f80c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#8  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x35fd470) at thread/qthread_unix.cpp:341
#9  0x00007f65bc4f66ba in start_thread (arg=0x7f64a5f81700) at pthread_create.c:333
#10 0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 31 (Thread 0x7f64aa32a700 (LWP 6945)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f65b0330574 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f65b03305b9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f65bc4f66ba in start_thread (arg=0x7f64aa32a700) at pthread_create.c:333
#4  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 30 (Thread 0x7f64dd059700 (LWP 4754)):
#0  0x00007f65bbd10ae0 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f65bbccbdc9 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc340 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f64b8006ec0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f64dd058c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x6437800) at thread/qthread_unix.cpp:341
#8  0x00007f65bc4f66ba in start_thread (arg=0x7f64dd059700) at pthread_create.c:333
#9  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 29 (Thread 0x7f64dd85a700 (LWP 4752)):
#0  0x00007fff29d99b5b in clock_gettime ()
#1  0x00007f65c2573c86 in __GI___clock_gettime (clock_id=1, tp=tp@entry=0x7f64dd8599e0) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f65c2f196c6 in qt_clock_gettime (ts=0x7f64dd8599e0, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:156
#4  qt_gettime () at tools/qelapsedtimer_unix.cpp:165
#5  0x00007f65c3094f09 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f64d0004500) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007f65c3095475 in QTimerInfoList::timerWait (this=0x7f64d0004500, tm=...) at kernel/qtimerinfo_unix.cpp:381
#7  0x00007f65c309685e in timerSourcePrepareHelper (timeout=0x7f64dd859ab4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:126
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f64dd859ab4) at kernel/qeventdispatcher_glib.cpp:159
#9  0x00007f65bbccb92d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f65bbccc2cb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f64d0002fb0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#13 0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f64dd859c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#15 0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x33740b0) at thread/qthread_unix.cpp:341
#16 0x00007f65bc4f66ba in start_thread (arg=0x7f64dd85a700) at pthread_create.c:333
#17 0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 28 (Thread 0x7f64a477e700 (LWP 4750)):
#0  0x00007f65c2e65d69 in std::__atomic_base<QMutexData*>::compare_exchange_strong (__m2=<optimized out>, __m1=std::memory_order_release, __p2=0x0, __p1=@0x7f64a477da28: 0x1, this=0x43b0008) at /usr/include/c++/5/bits/atomic_base.h:752
#1  std::atomic<QMutexData*>::compare_exchange_strong (__m=std::memory_order_release, __p2=0x0, __p1=@0x7f64a477da28: 0x1, this=0x43b0008) at /usr/include/c++/5/atomic:475
#2  QAtomicOps<QMutexData*>::testAndSetRelease<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=...) at ../../include/QtCore/../../src/corelib/arch/qatomic_cxx11.h:167
#3  QBasicAtomicPointer<QMutexData>::testAndSetRelease (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=<optimized out>, this=0x43b0008) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:278
#4  QBasicMutex::fastTryUnlock (current=<synthetic pointer>, this=0x43b0008) at thread/qmutex.h:85
#5  QMutex::unlock (this=this@entry=0x43b0008) at thread/qmutex.cpp:271
#6  0x00007f65c3096a11 in QMutexLocker::unlock (this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:138
#7  QMutexLocker::~QMutexLocker (this=<synthetic pointer>, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:132
#8  QThreadData::canWaitLocked (this=0x43affe0) at ../../include/QtCore/5.6.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:246
#9  postEventSourcePrepare (s=0x7f64c40028a0, timeout=0x7f64a477dab4) at kernel/qeventdispatcher_glib.cpp:253
#10 0x00007f65bbccb92d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f65bbccc2cb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f64c4001e90, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#14 0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f64a477dc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#15 0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#16 0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x50f8e40) at thread/qthread_unix.cpp:341
#17 0x00007f65bc4f66ba in start_thread (arg=0x7f64a477e700) at pthread_create.c:333
#18 0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 27 (Thread 0x7f64bdd5d700 (LWP 4748)):
#0  0x00007f65c255569d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f65bbd0f740 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccbe84 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65bbccc340 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f64d4007880, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#6  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f64bdd5cc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#8  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x4d43490) at thread/qthread_unix.cpp:341
#9  0x00007f65bc4f66ba in start_thread (arg=0x7f64bdd5d700) at pthread_create.c:333
#10 0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 26 (Thread 0x7f64b1bab700 (LWP 4746)):
#0  0x00007f65c30967d1 in timerSourcePrepare (source=0x7f64d813fd40, timeout=0x7f64b1baaab4) at kernel/qeventdispatcher_glib.cpp:147
#1  0x00007f65bbccb92d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc2cb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f64d8001c60, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f64b1baac80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x35aae80) at thread/qthread_unix.cpp:341
#8  0x00007f65bc4f66ba in start_thread (arg=0x7f64b1bab700) at pthread_create.c:333
#9  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7f64fe08c700 (LWP 3414)):
#0  0x00007f65bbd10ac9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f65bbccb939 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc2cb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f64e8003350, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f64fe08bc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x6333910) at thread/qthread_unix.cpp:341
#8  0x00007f65bc4f66ba in start_thread (arg=0x7f64fe08c700) at pthread_create.c:333
#9  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7f64feffd700 (LWP 3410)):
#0  0x00007f65bbccbd06 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f65bbccc340 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f64f4003d50, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f64feffcc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#6  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x2703fa0) at thread/qthread_unix.cpp:341
#7  0x00007f65bc4f66ba in start_thread (arg=0x7f64feffd700) at pthread_create.c:333
#8  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7f64ff7fe700 (LWP 3404)):
#0  0x00007f65c2559b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f65bbccc39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f64f0003950, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f64ff7fdc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#6  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x2679d90) at thread/qthread_unix.cpp:341
#7  0x00007f65bc4f66ba in start_thread (arg=0x7f64ff7fe700) at pthread_create.c:333
#8  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7f64fffff700 (LWP 3400)):
#0  0x00007f65bbd10ac9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f65bbccbf26 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f64f8003f50, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f64ffffec80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x26792c0) at thread/qthread_unix.cpp:341
#8  0x00007f65bc4f66ba in start_thread (arg=0x7f64fffff700) at pthread_create.c:333
#9  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7f650e3ca700 (LWP 3390)):
#0  0x00007f65c2559b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f65bbccc39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f6500003750, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f650e3c9c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#6  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x6adbed0) at thread/qthread_unix.cpp:341
#7  0x00007f65bc4f66ba in start_thread (arg=0x7f650e3ca700) at pthread_create.c:333
#8  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7f650ebcb700 (LWP 3388)):
#0  0x00007f65c2559b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f65bbccc39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f6504003f50, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f650ebcac80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#6  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x239e130) at thread/qthread_unix.cpp:341
#7  0x00007f65bc4f66ba in start_thread (arg=0x7f650ebcb700) at pthread_create.c:333
#8  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7f650ffff700 (LWP 3385)):
#0  0x00007f65c2559b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f65bbccc39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f6508003e60, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f650fffec80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#6  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x6106120) at thread/qthread_unix.cpp:341
#7  0x00007f65bc4f66ba in start_thread (arg=0x7f650ffff700) at pthread_create.c:333
#8  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7f6524cde700 (LWP 3381)):
#0  0x00007f65c2559b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f65bbccc39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f6514003d50, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f6524cddc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#6  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x58aca30) at thread/qthread_unix.cpp:341
#7  0x00007f65bc4f66ba in start_thread (arg=0x7f6524cde700) at pthread_create.c:333
#8  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f65254df700 (LWP 3378)):
#0  0x00007f65bbd10ae4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f65bbccbf3a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f6510003f50, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f65254dec80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x21d77e0) at thread/qthread_unix.cpp:341
#8  0x00007f65bc4f66ba in start_thread (arg=0x7f65254df700) at pthread_create.c:333
#9  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f6526ffd700 (LWP 3376)):
#0  0x00007f65bbd10ac9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f65bbccc35e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f651c003b50, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f6526ffcc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#6  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x5895e80) at thread/qthread_unix.cpp:341
#7  0x00007f65bc4f66ba in start_thread (arg=0x7f6526ffd700) at pthread_create.c:333
#8  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f65277fe700 (LWP 3373)):
#0  0x00007f65c25556c5 in read () at ../sysdeps/unix/syscall-template.S:86
#1  0x00007f65bbd0f740 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccbe84 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65bbccc340 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f6518003b50, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#6  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f65277fdc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#8  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x20c4d90) at thread/qthread_unix.cpp:341
#9  0x00007f65bc4f66ba in start_thread (arg=0x7f65277fe700) at pthread_create.c:333
#10 0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f6527fff700 (LWP 3368)):
#0  0x00007f65bbd10ac9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f65bbccbddc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc340 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f6520003f50, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f6527ffec80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x7122020) at thread/qthread_unix.cpp:341
#8  0x00007f65bc4f66ba in start_thread (arg=0x7f6527fff700) at pthread_create.c:333
#9  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f6534ee4700 (LWP 3361)):
#0  0x00007f65bbd10ac9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f65bbccbddc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc340 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f652c003ab0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f6534ee3c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x3222ef0) at thread/qthread_unix.cpp:341
#8  0x00007f65bc4f66ba in start_thread (arg=0x7f6534ee4700) at pthread_create.c:333
#9  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f64e6cc9700 (LWP 3129)):
#0  0x00007f65bbd10ac9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f65bbccbb51 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc317 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f64e00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f64e6cc8c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x58e0770) at thread/qthread_unix.cpp:341
#8  0x00007f65bc4f66ba in start_thread (arg=0x7f64e6cc9700) at pthread_create.c:333
#9  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f64fd88b700 (LWP 3112)):
#0  0x00007f65bbd10ae4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f65bbccbf3a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f64ec0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f64fd88ac80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x2dfa030) at thread/qthread_unix.cpp:341
#8  0x00007f65bc4f66ba in start_thread (arg=0x7f64fd88b700) at pthread_create.c:333
#9  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f65356e5700 (LWP 2929)):
#0  0x00007f65bbd10ac9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f65bbccb807 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc2cb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f65280008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f65356e4c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x1f77660) at thread/qthread_unix.cpp:341
#8  0x00007f65bc4f66ba in start_thread (arg=0x7f65356e5700) at pthread_create.c:333
#9  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f6535ee6700 (LWP 2927)):
#0  0x00007f65bbd10ae4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f65bbccb920 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc2cb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f65300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f6535ee5c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x1f77760) at thread/qthread_unix.cpp:341
#8  0x00007f65bc4f66ba in start_thread (arg=0x7f6535ee6700) at pthread_create.c:333
#9  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f654f7fe700 (LWP 2926)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f65c0232b93 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f65c0553381 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f65bc4f66ba in start_thread (arg=0x7f654f7fe700) at pthread_create.c:333
#4  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f654ffff700 (LWP 2925)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f65c0232b93 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f65c0553381 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f65bc4f66ba in start_thread (arg=0x7f654ffff700) at pthread_create.c:333
#4  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f6554d0d700 (LWP 2924)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f65c0232b93 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f65c0553381 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f65bc4f66ba in start_thread (arg=0x7f6554d0d700) at pthread_create.c:333
#4  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f655552d700 (LWP 2923)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f65c0231b64 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f65c0553381 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f65bc4f66ba in start_thread (arg=0x7f655552d700) at pthread_create.c:333
#4  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f6557920700 (LWP 2922)):
#0  0x00007f65c2559b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f65bbccc39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f65500008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f655791fc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f65c2e689e4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:500
#6  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x1b01860) at thread/qthread_unix.cpp:341
#7  0x00007f65bc4f66ba in start_thread (arg=0x7f6557920700) at pthread_create.c:333
#8  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f659edee700 (LWP 2921)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f65c052375b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f65c0523799 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f65bc4f66ba in start_thread (arg=0x7f659edee700) at pthread_create.c:333
#4  0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f659ffff700 (LWP 2920)):
#0  0x00007f65c3096907 in socketNotifierSourceCheck (source=0x7f6598002e00) at kernel/qeventdispatcher_glib.cpp:89
#1  0x00007f65bbccbdd1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f65bbccc340 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f65c309737b in QEventDispatcherGlib::processEvents (this=0x7f65980008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7f659fffec50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f65c2e689e4 in QThread::exec (this=this@entry=0x7f65c53d4d40 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:500
#7  0x00007f65c5361515 in QDBusConnectionManager::run (this=0x7f65c53d4d40 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:189
#8  0x00007f65c2e6d808 in QThreadPrivate::start (arg=0x7f65c53d4d40 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:341
#9  0x00007f65bc4f66ba in start_thread (arg=0x7f659ffff700) at pthread_create.c:333
#10 0x00007f65c256582d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f65aaee6940 (LWP 2918)):
[KCrash Handler]
#6  0x00007f64ddbd1406 in ?? () from /usr/lib/x86_64-linux-gnu/libkaddressbookprivate.so.5
#7  0x00007f65c306ec24 in QtPrivate::QSlotObjectBase::call (a=0x7fff29cd4d80, r=0x4bdfcc0, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#8  QMetaObject::activate (sender=0x3f155e0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff29cd4d80) at kernel/qobject.cpp:3715
#9  0x00007f65c306f1b7 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f65c3289da0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff29cd4d80) at kernel/qobject.cpp:3595
#10 0x00007f65c30e6dac in QAbstractItemModel::dataChanged (this=<optimized out>, _t1=..., _t2=..., _t3=...) at .moc/moc_qabstractitemmodel.cpp:566
#11 0x00007f65c1b87038 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5
#12 0x00007f65c1b83cdd in ?? () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5
#13 0x00007f65c306eb71 in QMetaObject::activate (sender=0x42b1720, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3730
#14 0x00007f65c1aa5a75 in Akonadi::Monitor::tagChanged(Akonadi::Tag const&) () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5
#15 0x00007f65c1aac9a9 in Akonadi::MonitorPrivate::emitTagsNotification(Akonadi::Protocol::ChangeNotification const&, QVector<Akonadi::Tag> const&) () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5
#16 0x00007f65c1ab24b6 in Akonadi::MonitorPrivate::emitNotification(Akonadi::Protocol::ChangeNotification const&) () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5
#17 0x00007f65c1aaf48b in Akonadi::MonitorPrivate::flushPipeline() () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5
#18 0x00007f65c1aaf709 in Akonadi::MonitorPrivate::dataAvailable() () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5
#19 0x00007f65c306eb71 in QMetaObject::activate (sender=0x409b9c0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3730
#20 0x00007f65c1a58158 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5
#21 0x00007f65c1a88464 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5
#22 0x00007f65c306eb71 in QMetaObject::activate (sender=0x41e5b10, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3730
#23 0x00007f65c412b552 in KJob::result(KJob*, KJob::QPrivateSignal) () from /usr/lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#24 0x00007f65c412ce91 in KJob::finishJob(bool) () from /usr/lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#25 0x00007f65c1b1d8a9 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5
#26 0x00007f65c306f719 in QObject::event (this=0x41e5b10, e=<optimized out>) at kernel/qobject.cpp:1256
#27 0x00007f65c3bc7afc in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x41e5b10, e=0x55b4390) at kernel/qapplication.cpp:3804
#28 0x00007f65c3bcd036 in QApplication::notify (this=0x7fff29cd5e00, receiver=0x41e5b10, e=0x55b4390) at kernel/qapplication.cpp:3561
#29 0x00007f65c30422a8 in QCoreApplication::notifyInternal2 (receiver=0x41e5b10, event=event@entry=0x55b4390) at kernel/qcoreapplication.cpp:1015
#30 0x00007f65c304416a in QCoreApplication::sendEvent (event=0x55b4390, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:225
#31 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x19f67b0) at kernel/qcoreapplication.cpp:1650
#32 0x00007f65c3044628 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1508
#33 0x00007f65c3096f53 in postEventSourceDispatch (s=0x1a4c250) at kernel/qeventdispatcher_glib.cpp:270
#34 0x00007f65bbccc1a7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f65bbccc400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f65bbccc4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007f65c309735f in QEventDispatcherGlib::processEvents (this=0x1a37670, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#38 0x00007f65c303fffa in QEventLoop::exec (this=this@entry=0x7fff29cd5b60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#39 0x00007f65c30486bc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1285
#40 0x000000000040439f in ?? ()
#41 0x00007f65c247f830 in __libc_start_main (main=0x403420, argc=1, argv=0x7fff29cd5f58, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff29cd5f48) at ../csu/libc-start.c:291
#42 0x00000000004048a9 in _start ()

Reported using DrKonqi