Application: kontact (5.1.3)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-22-generic x86_64
Distribution: Ubuntu 16.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:
1. Opened Kontact
2. Switched to Calendar View
3. Selected a calendar, right click, copy folder to
4. Selected an ownCloud CalDAV target
5. Application crashed (but calendar seemd to have copied successfully)

-- 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 0x7fb7e6cce940 (LWP 2445))]

Thread 37 (Thread 0x7fb7c5d97700 (LWP 2458)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb7e22f088b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007fb7e22f08c9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007fb7de0b46fa in start_thread (arg=0x7fb7c5d97700) at pthread_create.c:333
#4  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 36 (Thread 0x7fb77e731700 (LWP 2473)):
#0  0x00007fb7dd8873c4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb7dd889c7a in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a2c0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb7780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb77e730c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fb7e497984e in QThreadPrivate::start (arg=0xb6bdd0) at thread/qthread_unix.cpp:331
#8  0x00007fb7de0b46fa in start_thread (arg=0x7fb77e731700) at pthread_create.c:333
#9  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 35 (Thread 0x7fb777fff700 (LWP 2541)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb7e1ffea74 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007fb7e2320541 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007fb7de0b46fa in start_thread (arg=0x7fb777fff700) at pthread_create.c:333
#4  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 34 (Thread 0x7fb7777fe700 (LWP 2542)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb7e1fffaa3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007fb7e2320541 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007fb7de0b46fa in start_thread (arg=0x7fb7777fe700) at pthread_create.c:333
#4  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 33 (Thread 0x7fb776ffd700 (LWP 2543)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb7e1fffaa3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007fb7e2320541 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007fb7de0b46fa in start_thread (arg=0x7fb776ffd700) at pthread_create.c:333
#4  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 32 (Thread 0x7fb7767fc700 (LWP 2544)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb7e1fffaa3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007fb7e2320541 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007fb7de0b46fa in start_thread (arg=0x7fb7767fc700) at pthread_create.c:333
#4  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 31 (Thread 0x7fb75cc60700 (LWP 2599)):
#0  0x00007fb7dd8cea64 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb7dd889eba in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a380 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb7540008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb75cc5fc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fb7e497984e in QThreadPrivate::start (arg=0xeedac0) at thread/qthread_unix.cpp:331
#8  0x00007fb7de0b46fa in start_thread (arg=0x7fb75cc60700) at pthread_create.c:333
#9  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 30 (Thread 0x7fb75c45f700 (LWP 2600)):
#0  0x00007fb7dd8cea64 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb7dd8898a0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a24b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb74c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb75c45ec80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fb7e497984e in QThreadPrivate::start (arg=0xf090b0) at thread/qthread_unix.cpp:331
#8  0x00007fb7de0b46fa in start_thread (arg=0x7fb75c45f700) at pthread_create.c:333
#9  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 29 (Thread 0x7fb7598f7700 (LWP 2844)):
#0  QTimerInfoList::updateCurrentTime (this=this@entry=0x7fb750002ed0) at kernel/qtimerinfo_unix.cpp:83
#1  0x00007fb7e4baea95 in QTimerInfoList::timerWait (this=0x7fb750002ed0, tm=...) at kernel/qtimerinfo_unix.cpp:381
#2  0x00007fb7e4bafe7e in timerSourcePrepareHelper (timeout=0x7fb7598f6ac4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#3  timerSourcePrepare (source=<optimized out>, timeout=0x7fb7598f6ac4) at kernel/qeventdispatcher_glib.cpp:160
#4  0x00007fb7dd8898ad in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb7dd88a24b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb7500008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#8  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb7598f6c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#9  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#10 0x00007fb7e497984e in QThreadPrivate::start (arg=0x2706970) at thread/qthread_unix.cpp:331
#11 0x00007fb7de0b46fa in start_thread (arg=0x7fb7598f7700) at pthread_create.c:333
#12 0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 28 (Thread 0x7fb7590f6700 (LWP 2846)):
#0  0x00007fb7dd889858 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb7dd88a24b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb7440008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb7590f5c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fb7e497984e in QThreadPrivate::start (arg=0x27b2680) at thread/qthread_unix.cpp:331
#7  0x00007fb7de0b46fa in start_thread (arg=0x7fb7590f6700) at pthread_create.c:333
#8  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 27 (Thread 0x7fb7588f5700 (LWP 2849)):
#0  0x00007fb7dd8cea64 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb7dd8898a0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a24b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb7400008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb7588f4c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fb7e497984e in QThreadPrivate::start (arg=0x2784040) at thread/qthread_unix.cpp:331
#8  0x00007fb7de0b46fa in start_thread (arg=0x7fb7588f5700) at pthread_create.c:333
#9  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 26 (Thread 0x7fb748e63700 (LWP 2863)):
#0  0x00007fb7dd8cea64 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb7dd8898a0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a24b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb7380008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb748e62c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fb7e497984e in QThreadPrivate::start (arg=0x2a27720) at thread/qthread_unix.cpp:331
#8  0x00007fb7de0b46fa in start_thread (arg=0x7fb748e63700) at pthread_create.c:333
#9  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7fb73ffff700 (LWP 2865)):
#0  0x00007fb7e40699cd in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fb7dd8cd6c0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd889e04 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7dd88a2c0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb7340008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb73fffec80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007fb7e497984e in QThreadPrivate::start (arg=0x2a1bcd0) at thread/qthread_unix.cpp:331
#9  0x00007fb7de0b46fa in start_thread (arg=0x7fb73ffff700) at pthread_create.c:333
#10 0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7fb73f7fe700 (LWP 2867)):
#0  0x00007fb7dd8cea64 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb7dd8898a0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a24b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb72c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb73f7fdc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fb7e497984e in QThreadPrivate::start (arg=0x2a31330) at thread/qthread_unix.cpp:331
#8  0x00007fb7de0b46fa in start_thread (arg=0x7fb73f7fe700) at pthread_create.c:333
#9  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7fb73effd700 (LWP 2869)):
#0  0x00007fb7dd8cea49 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb7dd889ad1 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a297 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb7300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb73effcc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fb7e497984e in QThreadPrivate::start (arg=0x2a335d0) at thread/qthread_unix.cpp:331
#8  0x00007fb7de0b46fa in start_thread (arg=0x7fb73effd700) at pthread_create.c:333
#9  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7fb73e7fc700 (LWP 2871)):
#0  0x00007fb7dd889d57 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb7dd88a2c0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb7240008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb73e7fbc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fb7e497984e in QThreadPrivate::start (arg=0x2a36b10) at thread/qthread_unix.cpp:331
#7  0x00007fb7de0b46fa in start_thread (arg=0x7fb73e7fc700) at pthread_create.c:333
#8  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7fb73dffb700 (LWP 2873)):
#0  0x00007fb7e40699cd in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fb7dd8cd6c0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd889e04 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7dd88a2c0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb7280008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb73dffac80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007fb7e497984e in QThreadPrivate::start (arg=0x2a37e00) at thread/qthread_unix.cpp:331
#9  0x00007fb7de0b46fa in start_thread (arg=0x7fb73dffb700) at pthread_create.c:333
#10 0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7fb73d7fa700 (LWP 2875)):
#0  0x00007fb7dd889863 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb7dd88a24b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb71c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb73d7f9c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fb7e497984e in QThreadPrivate::start (arg=0x2a3bea0) at thread/qthread_unix.cpp:331
#7  0x00007fb7de0b46fa in start_thread (arg=0x7fb73d7fa700) at pthread_create.c:333
#8  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7fb73cff9700 (LWP 2877)):
#0  0x00007fb7e406de8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fb7dd88a31c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb7200008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb73cff8c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fb7e497984e in QThreadPrivate::start (arg=0x2a40730) at thread/qthread_unix.cpp:331
#7  0x00007fb7de0b46fa in start_thread (arg=0x7fb73cff9700) at pthread_create.c:333
#8  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7fb71bfff700 (LWP 2879)):
#0  0x00007fb7dd889ed8 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb7dd88a380 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb7140008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb71bffec80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fb7e497984e in QThreadPrivate::start (arg=0x2a43000) at thread/qthread_unix.cpp:331
#7  0x00007fb7de0b46fa in start_thread (arg=0x7fb71bfff700) at pthread_create.c:333
#8  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7fb71b7fe700 (LWP 2881)):
#0  0x00007fb7dd8cea49 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb7dd8892b0 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a1d5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb70c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb71b7fdc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fb7e497984e in QThreadPrivate::start (arg=0x2a4b1d0) at thread/qthread_unix.cpp:331
#8  0x00007fb7de0b46fa in start_thread (arg=0x7fb71b7fe700) at pthread_create.c:333
#9  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7fb71affd700 (LWP 2883)):
#0  0x00007fb7dd8cea64 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb7dd8898a0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a24b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb7100008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb71affcc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fb7e497984e in QThreadPrivate::start (arg=0x2a4dd40) at thread/qthread_unix.cpp:331
#8  0x00007fb7de0b46fa in start_thread (arg=0x7fb71affd700) at pthread_create.c:333
#9  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7fb71a7fc700 (LWP 2885)):
#0  0x00007fb7e406de8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fb7dd88a31c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb7040008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb71a7fbc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fb7e497984e in QThreadPrivate::start (arg=0x2a59080) at thread/qthread_unix.cpp:331
#7  0x00007fb7de0b46fa in start_thread (arg=0x7fb71a7fc700) at pthread_create.c:333
#8  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7fb719ffb700 (LWP 2887)):
#0  0x00007fb7dd8873f8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb7dd889c7a in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a2c0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb7080008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb719ffac80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fb7e497984e in QThreadPrivate::start (arg=0x2a57d10) at thread/qthread_unix.cpp:331
#8  0x00007fb7de0b46fa in start_thread (arg=0x7fb719ffb700) at pthread_create.c:333
#9  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7fb702b5b700 (LWP 3042)):
#0  timerSourcePrepareHelper (timeout=0x7fb702b5aac4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:130
#1  timerSourcePrepare (source=<optimized out>, timeout=0x7fb702b5aac4) at kernel/qeventdispatcher_glib.cpp:160
#2  0x00007fb7dd8898ad in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7dd88a24b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb6f80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb702b5ac80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007fb7e497984e in QThreadPrivate::start (arg=0x32908b0) at thread/qthread_unix.cpp:331
#9  0x00007fb7de0b46fa in start_thread (arg=0x7fb702b5b700) at pthread_create.c:333
#10 0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7fb701a57700 (LWP 16169)):
#0  0x00007fb7e406de8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fb7dd88a31c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb6e8003670, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb701a56c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fb7e497984e in QThreadPrivate::start (arg=0xac2490) at thread/qthread_unix.cpp:331
#7  0x00007fb7de0b46fa in start_thread (arg=0x7fb701a57700) at pthread_create.c:333
#8  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7fb6d9deb700 (LWP 1385)):
#0  0x00007fb7e40699cd in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fb7dd8cd6c0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd889e04 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7dd88a2c0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb6d402daa0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb6d9deac80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007fb7e497984e in QThreadPrivate::start (arg=0x35910f0) at thread/qthread_unix.cpp:331
#9  0x00007fb7de0b46fa in start_thread (arg=0x7fb6d9deb700) at pthread_create.c:333
#10 0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7fb7197fa700 (LWP 1387)):
#0  0x00007fb7dd8cea49 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb7dd889bce in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a2c0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb6cc0447e0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb7197f9c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fb7e497984e in QThreadPrivate::start (arg=0x46d9150) at thread/qthread_unix.cpp:331
#8  0x00007fb7de0b46fa in start_thread (arg=0x7fb7197fa700) at pthread_create.c:333
#9  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7fb6da5ec700 (LWP 1389)):
#0  QBasicAtomicOps<8>::testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x3ce1f08: 0x1) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  QGenericAtomicOps<QBasicAtomicOps<8> >::testAndSetRelease<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=<optimized out>, _q_value=@0x3ce1f08: 0x1) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:175
#2  QBasicAtomicPointer<QMutexData>::testAndSetRelease (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=<optimized out>, this=this@entry=0x3ce1f08) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:278
#3  QBasicMutex::fastTryUnlock (current=<synthetic pointer>, this=this@entry=0x3ce1f08) at thread/qmutex.h:85
#4  QMutex::unlock (this=this@entry=0x3ce1f08) at thread/qmutex.cpp:264
#5  0x00007fb7e4bb0305 in QMutexLocker::unlock (this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:138
#6  QMutexLocker::~QMutexLocker (this=<synthetic pointer>, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:132
#7  QThreadData::canWaitLocked (this=<optimized out>) at ../../include/QtCore/5.5.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:240
#8  postEventSourcePrepare (timeout=<synthetic pointer>, s=0x7fb6fc01cd10) at kernel/qeventdispatcher_glib.cpp:254
#9  postEventSourceCheck (source=0x7fb6fc01cd10) at kernel/qeventdispatcher_glib.cpp:264
#10 0x00007fb7dd889d51 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fb7dd88a2c0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb6fc128ca0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#14 0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb6da5ebc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#15 0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#16 0x00007fb7e497984e in QThreadPrivate::start (arg=0x2cb29c0) at thread/qthread_unix.cpp:331
#17 0x00007fb7de0b46fa in start_thread (arg=0x7fb6da5ec700) at pthread_create.c:333
#18 0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7fb6daded700 (LWP 1391)):
#0  0x00007fb7dd8cea49 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb7dd889787 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a24b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb6f4005de0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb6dadecc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fb7e497984e in QThreadPrivate::start (arg=0x3a01030) at thread/qthread_unix.cpp:331
#8  0x00007fb7de0b46fa in start_thread (arg=0x7fb6daded700) at pthread_create.c:333
#9  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7fb6ed045700 (LWP 1393)):
#0  0x00007fb7e49719aa in QBasicAtomicOps<8>::testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=@0x397c9f8: 0x1) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  QGenericAtomicOps<QBasicAtomicOps<8> >::testAndSetAcquire<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=<optimized out>, expectedValue=0x0, _q_value=@0x397c9f8: 0x1) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:166
#2  QBasicAtomicPointer<QMutexData>::testAndSetAcquire (currentValue=<synthetic pointer>, newValue=<optimized out>, expectedValue=0x0, this=0x397c9f8, this@entry=0x1) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:276
#3  QBasicMutex::fastTryLock (current=<synthetic pointer>, this=0x397c9f8, this@entry=0x1) at thread/qmutex.h:82
#4  QMutex::lock (this=this@entry=0x397c9f8) at thread/qmutex.cpp:212
#5  0x00007fb7e4bb001f in QMutexLocker::QMutexLocker (m=0x397c9f8, this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:128
#6  QThreadData::canWaitLocked (this=0x397c9d0) at ../../include/QtCore/5.5.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:240
#7  postEventSourcePrepare (s=0x7fb6f0008ce0, timeout=0x7fb6ed044ac4) at kernel/qeventdispatcher_glib.cpp:254
#8  0x00007fb7dd8898ad in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fb7dd88a24b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb6f0000f70, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#12 0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb6ed044c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#13 0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#14 0x00007fb7e497984e in QThreadPrivate::start (arg=0x4518480) at thread/qthread_unix.cpp:331
#15 0x00007fb7de0b46fa in start_thread (arg=0x7fb6ed045700) at pthread_create.c:333
#16 0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7fb6e3ffe700 (LWP 3102)):
#0  0x00007fb7dd889d38 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb7dd88a2c0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb710004140, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb6e3ffdc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fb7e497984e in QThreadPrivate::start (arg=0x4275460) at thread/qthread_unix.cpp:331
#7  0x00007fb7de0b46fa in start_thread (arg=0x7fb6e3ffe700) at pthread_create.c:333
#8  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fb6e37fd700 (LWP 3104)):
#0  0x00007fb7dd8cea49 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb7dd8898b9 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a24b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb70c004db0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb6e37fcc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fb7e497984e in QThreadPrivate::start (arg=0x3fb23f0) at thread/qthread_unix.cpp:331
#8  0x00007fb7de0b46fa in start_thread (arg=0x7fb6e37fd700) at pthread_create.c:333
#9  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fb6e2ffc700 (LWP 3106)):
#0  0x00007fb7dd88a407 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb714003b60, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#2  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb6e2ffbc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#3  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#4  0x00007fb7e497984e in QThreadPrivate::start (arg=0x4f36180) at thread/qthread_unix.cpp:331
#5  0x00007fb7de0b46fa in start_thread (arg=0x7fb6e2ffc700) at pthread_create.c:333
#6  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fb6e15ee700 (LWP 3321)):
#0  0x00007fb7e406de8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fb7dd88a31c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb7280373c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb6e15edc80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fb7e497984e in QThreadPrivate::start (arg=0x4d95040) at thread/qthread_unix.cpp:331
#7  0x00007fb7de0b46fa in start_thread (arg=0x7fb6e15ee700) at pthread_create.c:333
#8  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fb6e07c9700 (LWP 3329)):
#0  0x00007fb7dd8898c6 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb7dd88a24b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7e4bb0a9b in QEventDispatcherGlib::processEvents (this=0x7fb7240042a0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fb6e07c8c80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fb7e49748a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fb7e497984e in QThreadPrivate::start (arg=0x523ae20) at thread/qthread_unix.cpp:331
#7  0x00007fb7de0b46fa in start_thread (arg=0x7fb6e07c9700) at pthread_create.c:333
#8  0x00007fb7e4079b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fb7e6cce940 (LWP 2445)):
[KCrash Handler]
#6  0x00007fb774a10c90 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5CalendarCore.so.5
#7  0x00007fb774a0c894 in KCalCore::Calendar::setupRelations(QSharedPointer<KCalCore::Incidence> const&) () from /usr/lib/x86_64-linux-gnu/libKF5CalendarCore.so.5
#8  0x00007fb774a4abac in KCalCore::MemoryCalendar::addIncidence(QSharedPointer<KCalCore::Incidence> const&) () from /usr/lib/x86_64-linux-gnu/libKF5CalendarCore.so.5
#9  0x00007fb766b68e9e in ?? () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCalendar.so.5
#10 0x00007fb766b766f8 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCalendar.so.5
#11 0x00007fb766b77a22 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCalendar.so.5
#12 0x00007fb7e4b88e4f in QtPrivate::QSlotObjectBase::call (a=0x7fff748ef980, r=0x3981310, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#13 QMetaObject::activate (sender=sender@entry=0x2a0b8e0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=10, argv=argv@entry=0x7fff748ef980) at kernel/qobject.cpp:3698
#14 0x00007fb7e4b897d7 in QMetaObject::activate (sender=sender@entry=0x2a0b8e0, m=m@entry=0x7fb7e4da2ec0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=10, argv=argv@entry=0x7fff748ef980) at kernel/qobject.cpp:3578
#15 0x00007fb7e4c05324 in QAbstractItemModel::rowsInserted (this=this@entry=0x2a0b8e0, _t1=..., _t2=251, _t3=802) at .moc/moc_qabstractitemmodel.cpp:583
#16 0x00007fb7e4b02776 in QAbstractItemModel::endInsertRows (this=this@entry=0x2a0b8e0) at itemmodels/qabstractitemmodel.cpp:2619
#17 0x00007fb7e4b256eb in QSortFilterProxyModelPrivate::insert_source_items (this=this@entry=0x4258b60, source_to_proxy=..., proxy_to_source=..., source_items=..., source_parent=..., emit_signal=emit_signal@entry=true, orient=Qt::Vertical) at itemmodels/qsortfilterproxymodel.cpp:714
#18 0x00007fb7e4b27f44 in QSortFilterProxyModelPrivate::source_items_inserted (orient=Qt::Vertical, end=<optimized out>, start=<optimized out>, source_parent=..., this=0x4258b60) at itemmodels/qsortfilterproxymodel.cpp:825
#19 QSortFilterProxyModelPrivate::_q_sourceRowsInserted (this=0x4258b60, source_parent=..., start=<optimized out>, end=<optimized out>) at itemmodels/qsortfilterproxymodel.cpp:1381
#20 0x00007fb7e4b2b929 in QSortFilterProxyModel::qt_static_metacall (_o=_o@entry=0x2a0b8e0, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=12, _a=_a@entry=0x7fff748efd00) at .moc/moc_qsortfilterproxymodel.cpp:209
#21 0x00007fb7e4b88fca in QMetaObject::activate (sender=sender@entry=0x27b7ef0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=10, argv=argv@entry=0x7fff748efd00) at kernel/qobject.cpp:3713
#22 0x00007fb7e4b897d7 in QMetaObject::activate (sender=sender@entry=0x27b7ef0, m=m@entry=0x7fb7e4da2ec0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=10, argv=argv@entry=0x7fff748efd00) at kernel/qobject.cpp:3578
#23 0x00007fb7e4c05324 in QAbstractItemModel::rowsInserted (this=this@entry=0x27b7ef0, _t1=..., _t2=251, _t3=802) at .moc/moc_qabstractitemmodel.cpp:583
#24 0x00007fb7e4b02776 in QAbstractItemModel::endInsertRows (this=this@entry=0x27b7ef0) at itemmodels/qabstractitemmodel.cpp:2619
#25 0x00007fb7e4b256eb in QSortFilterProxyModelPrivate::insert_source_items (this=this@entry=0x2af5970, source_to_proxy=..., proxy_to_source=..., source_items=..., source_parent=..., emit_signal=emit_signal@entry=true, orient=Qt::Vertical) at itemmodels/qsortfilterproxymodel.cpp:714
#26 0x00007fb7e4b27f44 in QSortFilterProxyModelPrivate::source_items_inserted (orient=Qt::Vertical, end=<optimized out>, start=<optimized out>, source_parent=..., this=0x2af5970) at itemmodels/qsortfilterproxymodel.cpp:825
#27 QSortFilterProxyModelPrivate::_q_sourceRowsInserted (this=0x2af5970, source_parent=..., start=<optimized out>, end=<optimized out>) at itemmodels/qsortfilterproxymodel.cpp:1381
#28 0x00007fb7e4b2b929 in QSortFilterProxyModel::qt_static_metacall (_o=_o@entry=0x27b7ef0, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=12, _a=_a@entry=0x7fff748f0080) at .moc/moc_qsortfilterproxymodel.cpp:209
#29 0x00007fb7e4b88fca in QMetaObject::activate (sender=sender@entry=0x3d1f6b0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=10, argv=argv@entry=0x7fff748f0080) at kernel/qobject.cpp:3713
#30 0x00007fb7e4b897d7 in QMetaObject::activate (sender=sender@entry=0x3d1f6b0, m=m@entry=0x7fb7e4da2ec0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=10, argv=argv@entry=0x7fff748f0080) at kernel/qobject.cpp:3578
#31 0x00007fb7e4c05324 in QAbstractItemModel::rowsInserted (this=this@entry=0x3d1f6b0, _t1=..., _t2=251, _t3=802) at .moc/moc_qabstractitemmodel.cpp:583
#32 0x00007fb7e4b02776 in QAbstractItemModel::endInsertRows (this=this@entry=0x3d1f6b0) at itemmodels/qabstractitemmodel.cpp:2619
#33 0x00007fb7e4b256eb in QSortFilterProxyModelPrivate::insert_source_items (this=this@entry=0x4067fc0, source_to_proxy=..., proxy_to_source=..., source_items=..., source_parent=..., emit_signal=emit_signal@entry=true, orient=Qt::Vertical) at itemmodels/qsortfilterproxymodel.cpp:714
#34 0x00007fb7e4b27f44 in QSortFilterProxyModelPrivate::source_items_inserted (orient=Qt::Vertical, end=<optimized out>, start=<optimized out>, source_parent=..., this=0x4067fc0) at itemmodels/qsortfilterproxymodel.cpp:825
#35 QSortFilterProxyModelPrivate::_q_sourceRowsInserted (this=0x4067fc0, source_parent=..., start=<optimized out>, end=<optimized out>) at itemmodels/qsortfilterproxymodel.cpp:1381
#36 0x00007fb7e4b2b929 in QSortFilterProxyModel::qt_static_metacall (_o=_o@entry=0x3d1f6b0, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=12, _a=_a@entry=0x7fff748f0400) at .moc/moc_qsortfilterproxymodel.cpp:209
#37 0x00007fb7e4b88fca in QMetaObject::activate (sender=sender@entry=0x5aab510, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=10, argv=argv@entry=0x7fff748f0400) at kernel/qobject.cpp:3713
#38 0x00007fb7e4b897d7 in QMetaObject::activate (sender=sender@entry=0x5aab510, m=m@entry=0x7fb7e4da2ec0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=10, argv=argv@entry=0x7fff748f0400) at kernel/qobject.cpp:3578
#39 0x00007fb7e4c05324 in QAbstractItemModel::rowsInserted (this=this@entry=0x5aab510, _t1=..., _t2=252, _t3=803) at .moc/moc_qabstractitemmodel.cpp:583
#40 0x00007fb7e4b02776 in QAbstractItemModel::endInsertRows (this=this@entry=0x5aab510) at itemmodels/qabstractitemmodel.cpp:2619
#41 0x00007fb7da8adddc in KSelectionProxyModelPrivate::insertSelectionIntoProxy (this=this@entry=0x4067df0, selection=...) at ../../src/kselectionproxymodel.cpp:2084
#42 0x00007fb7da8ae2d4 in KSelectionProxyModelPrivate::selectionChanged (this=this@entry=0x4067df0, _selected=..., _deselected=...) at ../../src/kselectionproxymodel.cpp:1991
#43 0x00007fb7da8aff63 in KSelectionProxyModelPrivate::sourceRowsInserted (this=0x4067df0, parent=..., start=<optimized out>, end=<optimized out>) at ../../src/kselectionproxymodel.cpp:1102
#44 0x00007fb7da8b0479 in KSelectionProxyModel::qt_static_metacall (_o=_o@entry=0x5aab510, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=7, _a=_a@entry=0x7fff748f09c0) at ./moc_kselectionproxymodel.cpp:186
#45 0x00007fb7e4b88fca in QMetaObject::activate (sender=sender@entry=0xa62ac0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=10, argv=argv@entry=0x7fff748f09c0) at kernel/qobject.cpp:3713
#46 0x00007fb7e4b897d7 in QMetaObject::activate (sender=sender@entry=0xa62ac0, m=m@entry=0x7fb7e4da2ec0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=10, argv=argv@entry=0x7fff748f09c0) at kernel/qobject.cpp:3578
#47 0x00007fb7e4c05324 in QAbstractItemModel::rowsInserted (this=this@entry=0xa62ac0, _t1=..., _t2=0, _t3=0) at .moc/moc_qabstractitemmodel.cpp:583
#48 0x00007fb7e4b02776 in QAbstractItemModel::endInsertRows (this=0xa62ac0) at itemmodels/qabstractitemmodel.cpp:2619
#49 0x00007fb7e36a4d3e in Akonadi::EntityTreeModelPrivate::insertCollection(Akonadi::Collection const&, Akonadi::Collection const&) () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5
#50 0x00007fb7e36ad3bb in Akonadi::EntityTreeModelPrivate::monitoredCollectionAdded(Akonadi::Collection const&, Akonadi::Collection const&) () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5
#51 0x00007fb7e4b88fca in QMetaObject::activate (sender=0x2760a00, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3713
#52 0x00007fb7e35f445a in Akonadi::Monitor::collectionAdded(Akonadi::Collection const&, Akonadi::Collection const&) () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5
#53 0x00007fb7e35fa5c7 in Akonadi::MonitorPrivate::emitCollectionNotification(Akonadi::Protocol::ChangeNotification const&, Akonadi::Collection const&, Akonadi::Collection const&, Akonadi::Collection const&) () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5
#54 0x00007fb7e3602100 in Akonadi::MonitorPrivate::emitNotification(Akonadi::Protocol::ChangeNotification const&) () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5
#55 0x00007fb7e35b89ee in Akonadi::ChangeRecorderPrivate::emitNotification(Akonadi::Protocol::ChangeNotification const&) () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5
#56 0x00007fb7e35fccb4 in Akonadi::MonitorPrivate::flushPipeline() () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5
#57 0x00007fb7e35fcf19 in Akonadi::MonitorPrivate::dataAvailable() () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5
#58 0x00007fb7e4b88fca in QMetaObject::activate (sender=0xa618c0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3713
#59 0x00007fb7e35afeff in ?? () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5
#60 0x00007fb7e35d7614 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5
#61 0x00007fb7e4b88fca in QMetaObject::activate (sender=sender@entry=0x3d26100, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7fff748f1240) at kernel/qobject.cpp:3713
#62 0x00007fb7e4b897d7 in QMetaObject::activate (sender=sender@entry=0x3d26100, m=m@entry=0x7fb7e5e5c520 <KJob::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7fff748f1240) at kernel/qobject.cpp:3578
#63 0x00007fb7e5c0b6c2 in KJob::result (this=this@entry=0x3d26100, _t1=_t1@entry=0x3d26100) at ./moc_kjob.cpp:555
#64 0x00007fb7e5c0c281 in KJob::finishJob (this=0x3d26100, emitResult=<optimized out>) at ../../../src/lib/jobs/kjob.cpp:109
#65 0x00007fb7e36654e3 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5AkonadiCore.so.5
#66 0x00007fb7e4b89ea1 in QObject::event (this=0x3d26100, e=<optimized out>) at kernel/qobject.cpp:1239
#67 0x00007fb7e56a005c in QApplicationPrivate::notify_helper (this=this@entry=0xa5fd40, receiver=receiver@entry=0x3d26100, e=e@entry=0x4e6d9d0) at kernel/qapplication.cpp:3716
#68 0x00007fb7e56a5516 in QApplication::notify (this=0x7fff748f1aa0, receiver=0x3d26100, e=0x4e6d9d0) at kernel/qapplication.cpp:3499
#69 0x00007fb7e4b5a62b in QCoreApplication::notifyInternal (this=0x7fff748f1aa0, receiver=0x3d26100, event=event@entry=0x4e6d9d0) at kernel/qcoreapplication.cpp:965
#70 0x00007fb7e4b5ca26 in QCoreApplication::sendEvent (event=0x4e6d9d0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#71 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0xa5d760) at kernel/qcoreapplication.cpp:1593
#72 0x00007fb7e4b5cf08 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1451
#73 0x00007fb7e4bb0673 in postEventSourceDispatch (s=0xa938b0) at kernel/qeventdispatcher_glib.cpp:271
#74 0x00007fb7dd88a127 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#75 0x00007fb7dd88a380 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#76 0x00007fb7dd88a42c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#77 0x00007fb7e4bb0a7f in QEventDispatcherGlib::processEvents (this=0xa93ac0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#78 0x00007fb7e4b57dea in QEventLoop::exec (this=this@entry=0x7fff748f1800, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#79 0x00007fb7e4b5fe8c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#80 0x0000000000404ae9 in main ()

Reported using DrKonqi