Application: knotes (5.3.42 pre ())

Qt Version: 5.7.0
Frameworks Version: 5.27.0
Operating System: Linux 4.4.0-36-generic x86_64
Distribution: KDE neon User Edition 5.7

-- Information about the crash:
I am doing this from a virtaul box vm. Login to a wayland session and open Kontact, it will crashed right away.

This happens due to korganizer, knotes and akregator crashing or having conflicts under wayland.
Drkonqui can't generate a backtrace for kontact and akregator, i only get:

"Application: Kontact (kontact), signal: Segmentation fault"

The crash can be reproduced every time.

-- Backtrace:
Application: KNotes (knotes), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f034aed5a00 (LWP 4383))]

Thread 8 (Thread 0x7f0318d01700 (LWP 4391)):
#0  0x00007f034766de8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f033fc0d39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f033fc0d4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f03481bd23b in QEventDispatcherGlib::processEvents (this=0x7f03100008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f0348167cea in QEventLoop::exec (this=this@entry=0x7f0318d00bc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210
#5  0x00007f0347f8cfb4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:507
#6  0x00007f0347f91b98 in QThreadPrivate::start (arg=0xbd9a50) at thread/qthread_unix.cpp:344
#7  0x00007f03416c26fa in start_thread (arg=0x7f0318d01700) at pthread_create.c:333
#8  0x00007f0347679b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f0319502700 (LWP 4390)):
#0  0x00007f033fc51ac9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f033fc0d382 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f033fc0d4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f03481bd23b in QEventDispatcherGlib::processEvents (this=0x7f030c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f0348167cea in QEventLoop::exec (this=this@entry=0x7f0319501bc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210
#5  0x00007f0347f8cfb4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:507
#6  0x00007f0347f91b98 in QThreadPrivate::start (arg=0xbe4b70) at thread/qthread_unix.cpp:344
#7  0x00007f03416c26fa in start_thread (arg=0x7f0319502700) at pthread_create.c:333
#8  0x00007f0347679b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f031a71a700 (LWP 4389)):
#0  0x00007f034766de8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f033fc0d39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f033fc0d4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f03481bd23b in QEventDispatcherGlib::processEvents (this=0x7f03140008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f0348167cea in QEventLoop::exec (this=this@entry=0x7f031a719b90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:210
#5  0x00007f0347f8cfb4 in QThread::exec (this=this@entry=0x7f034ce6cd60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:507
#6  0x00007f034cdf87a5 in QDBusConnectionManager::run (this=0x7f034ce6cd60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:196
#7  0x00007f0347f91b98 in QThreadPrivate::start (arg=0x7f034ce6cd60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:344
#8  0x00007f03416c26fa in start_thread (arg=0x7f031a71a700) at pthread_create.c:333
#9  0x00007f0347679b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f031b687700 (LWP 4388)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0320db1aa3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f0320db1907 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f03416c26fa in start_thread (arg=0x7f031b687700) at pthread_create.c:333
#4  0x00007f0347679b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f031be88700 (LWP 4387)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0320db1aa3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f0320db1907 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f03416c26fa in start_thread (arg=0x7f031be88700) at pthread_create.c:333
#4  0x00007f0347679b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f031c689700 (LWP 4386)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0320db1aa3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f0320db1907 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f03416c26fa in start_thread (arg=0x7f031c689700) at pthread_create.c:333
#4  0x00007f0347679b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f031ce8a700 (LWP 4385)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f0320db1aa3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f0320db1907 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f03416c26fa in start_thread (arg=0x7f031ce8a700) at pthread_create.c:333
#4  0x00007f0347679b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f034aed5a00 (LWP 4383)):
[KCrash Handler]
#6  0x00007f034ba2364f in XInternAtoms (dpy=0xa284c0, names=names@entry=0x7ffec0998fe0, count=count@entry=2, onlyIfExists=onlyIfExists@entry=0, atoms_return=atoms_return@entry=0x7ffec0998fd0) at ../../src/IntAtom.c:254
#7  0x0000000000417ae8 in remove_sm_from_client_leader () at /workspace/build/src/apps/main.cpp:94
#8  0x0000000000415954 in main (argc=1, argv=0x7ffec0999278) at /workspace/build/src/apps/main.cpp:75

Reported using DrKonqi