Application: kdeconnectd (0.1)
KDE Platform Version: 4.14.2
Qt Version: 4.8.6
Operating System: Linux 4.0.0-rc3-20150312 x86_64
Distribution: DebianEdu/Skolelinux

-- Information about the crash:
- What I was doing when the application crashed:
Just launched the pairing with mobile device identified with IP address

- Custom settings of the application:
might be related to attempts to run self compiled last version (0.8) wich build but do not launch (did a symbolic linc of /usr/lib/libkdeconnectcore.so.1 to libkdeconnectcore.so.1.0.1 and /usr/lib/libkdeconnectinterfaces.so.1 to libkdeconnectinterfaces.so.1.0.1) and had to uninstall then reinstall the official debian package
running unstable, updated daily

The crash can be reproduced every time.

-- Backtrace:
Application: kdeconnect (kdeconnectd), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f87cd0eb780 (LWP 4270))]

Thread 2 (Thread 0x7f87ba039700 (LWP 4273)):
#0  0x00007f87c9fc250d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f87c7581ee4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f87c7581ffc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f87cac65d37 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#4  0x00007f87cac35271 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007f87cac355d5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007f87cab29e99 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007f87cab2c70f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007f87c7a690a4 in start_thread (arg=0x7f87ba039700) at pthread_create.c:309
#9  0x00007f87c9fcb04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f87cd0eb780 (LWP 4270)):
[KCrash Handler]
#6  0x00007f87c91f4320 in QCA::Provider::Context::provider() const () from /usr/lib/x86_64-linux-gnu/libqca.so.2
#7  0x00007f87c920c2ed in QCA::PublicKey::toPEM() const () from /usr/lib/x86_64-linux-gnu/libqca.so.2
#8  0x00007f87ccd0ab4b in Device::sendOwnPublicKey() () from /usr/lib/libkdeconnectcore.so.1
#9  0x00007f87ccd0baa9 in Device::acceptPairing() () from /usr/lib/libkdeconnectcore.so.1
#10 0x00007f87cccf62d5 in ?? () from /usr/lib/libkdeconnectcore.so.1
#11 0x00007f87cac4b71c in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#12 0x00007f87cc8cf345 in KNotification::activate(unsigned int) () from /usr/lib/libkdeui.so.5
#13 0x00007f87cc8d0bdd in ?? () from /usr/lib/libkdeui.so.5
#14 0x00007f87cac4b71c in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#15 0x00007f87cc9fa7dc in ?? () from /usr/lib/libkdeui.so.5
#16 0x00007f87cc9fac21 in ?? () from /usr/lib/libkdeui.so.5
#17 0x00007f87cc9fb113 in ?? () from /usr/lib/libkdeui.so.5
#18 0x00007f87cafc36c6 in ?? () from /usr/lib/x86_64-linux-gnu/libQtDBus.so.4
#19 0x00007f87cac4fe11 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#20 0x00007f87cbb2a48c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#21 0x00007f87cbb30fa8 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#22 0x00007f87cc8a21aa in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#23 0x00007f87cac3671d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#24 0x00007f87cac39fc1 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#25 0x00007f87cac65bd3 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#26 0x00007f87c7581c5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f87c7581f48 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f87c7581ffc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f87cac65d1d in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#30 0x00007f87cbbcef96 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#31 0x00007f87cac35271 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#32 0x00007f87cac355d5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#33 0x00007f87cac3b059 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#34 0x00000000004011d0 in ?? ()
#35 0x00007f87c9f06b45 in __libc_start_main (main=0x400ff0, argc=1, argv=0x7fffd843c2e8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffd843c2d8) at libc-start.c:287
#36 0x0000000000401237 in _start ()

Reported using DrKonqi