Application: kontact (5.0.47 pre)
 (Compiled from sources)
Qt Version: 5.4.2
Operating System: Linux 4.2.5 x86_64
Distribution: Ubuntu 15.10

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

I just read news in Akregator, open web page in new tab (KHTMLPart) and then Akregator crashed. 
Opened web page: http://www.weeklyosm.eu/cz/archives/5148
It happens everytime.

Kdepim, KHTML and KIO are compiled form source code, 
my KHTML head dfc046ae9dbca696505ac37d1b5dd5456d65b5c7
kio head 2ce45131cd42128628ed756605676f40a68a87ae
kdepim head e1a7b7db11604f20177ad3207619e41aa44be643

The crash can be reproduced every time.

-- Backtrace:
Application: Kontact (kontact), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f8112fec840 (LWP 2710))]

Thread 21 (Thread 0x7f810a2c6700 (LWP 2712)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f812a1ba48b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f812a1ba4c9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f8125e846aa in start_thread (arg=0x7f810a2c6700) at pthread_create.c:333
#4  0x00007f812c0cfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7f80c6cd6700 (LWP 2713)):
#0  0x00007f812c0c049d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f81256a04e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f812565ccd4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f812565d190 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f812565d2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f812cc0529b in QEventDispatcherGlib::processEvents (this=0x7f80c00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00007f812cbab75a in QEventLoop::exec (this=this@entry=0x7f80c6cd5d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f812c9c93d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f812c9ce2be in QThreadPrivate::start (arg=0x2686c60) at thread/qthread_unix.cpp:337
#9  0x00007f8125e846aa in start_thread (arg=0x7f80c6cd6700) at pthread_create.c:333
#10 0x00007f812c0cfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7f80c48d7700 (LWP 2714)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8129ec85b4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f812a1ea341 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f8125e846aa in start_thread (arg=0x7f80c48d7700) at pthread_create.c:333
#4  0x00007f812c0cfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7f80bffff700 (LWP 2715)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8129ec95e3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f812a1ea341 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f8125e846aa in start_thread (arg=0x7f80bffff700) at pthread_create.c:333
#4  0x00007f812c0cfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f80bf7fe700 (LWP 2716)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8129ec95e3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f812a1ea341 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f8125e846aa in start_thread (arg=0x7f80bf7fe700) at pthread_create.c:333
#4  0x00007f812c0cfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f80beffd700 (LWP 2717)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f8129ec95e3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f812a1ea341 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f8125e846aa in start_thread (arg=0x7f80beffd700) at pthread_create.c:333
#4  0x00007f812c0cfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f80a486b700 (LWP 2718)):
#0  0x00007f81256a1869 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f812565ca9e in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f812565d190 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f812565d2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f812cc0529b in QEventDispatcherGlib::processEvents (this=0x7f80a00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f812cbab75a in QEventLoop::exec (this=this@entry=0x7f80a486ad80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f812c9c93d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f812c9ce2be in QThreadPrivate::start (arg=0x29f31e0) at thread/qthread_unix.cpp:337
#8  0x00007f8125e846aa in start_thread (arg=0x7f80a486b700) at pthread_create.c:333
#9  0x00007f812c0cfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f809ffff700 (LWP 2721)):
#0  0x00007f812c0c049d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f81256a04e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f812565ccd4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f812565d190 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f812565d2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f812cc0529b in QEventDispatcherGlib::processEvents (this=0x7f80980008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00007f812cbab75a in QEventLoop::exec (this=this@entry=0x7f809fffed80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f812c9c93d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f812c9ce2be in QThreadPrivate::start (arg=0x29e3870) at thread/qthread_unix.cpp:337
#9  0x00007f8125e846aa in start_thread (arg=0x7f809ffff700) at pthread_create.c:333
#10 0x00007f812c0cfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f809f7fe700 (LWP 2723)):
#0  0x00007f812c0c48dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f812565d1ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f812565d2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f812cc0529b in QEventDispatcherGlib::processEvents (this=0x7f80900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f812cbab75a in QEventLoop::exec (this=this@entry=0x7f809f7fdd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f812c9c93d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f812c9ce2be in QThreadPrivate::start (arg=0x2a17160) at thread/qthread_unix.cpp:337
#7  0x00007f8125e846aa in start_thread (arg=0x7f809f7fe700) at pthread_create.c:333
#8  0x00007f812c0cfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f809ede5700 (LWP 2725)):
#0  0x00007f812c0c48dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f812565d1ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f812565d2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f812cc0529b in QEventDispatcherGlib::processEvents (this=0x7f80940008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f812cbab75a in QEventLoop::exec (this=this@entry=0x7f809ede4d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f812c9c93d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f812c9ce2be in QThreadPrivate::start (arg=0x2f04950) at thread/qthread_unix.cpp:337
#7  0x00007f8125e846aa in start_thread (arg=0x7f809ede5700) at pthread_create.c:333
#8  0x00007f812c0cfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f809e5e4700 (LWP 2728)):
#0  0x00007f812565d0e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f812565d2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f812cc0529b in QEventDispatcherGlib::processEvents (this=0x7f80880008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#3  0x00007f812cbab75a in QEventLoop::exec (this=this@entry=0x7f809e5e3d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f812c9c93d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#5  0x00007f812c9ce2be in QThreadPrivate::start (arg=0x2bfbb40) at thread/qthread_unix.cpp:337
#6  0x00007f8125e846aa in start_thread (arg=0x7f809e5e4700) at pthread_create.c:333
#7  0x00007f812c0cfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f809dde3700 (LWP 2731)):
#0  0x00007f812565a210 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f812565c71b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f812565d11b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f812565d2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f812cc0529b in QEventDispatcherGlib::processEvents (this=0x7f808c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f812cbab75a in QEventLoop::exec (this=this@entry=0x7f809dde2d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f812c9c93d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f812c9ce2be in QThreadPrivate::start (arg=0x2a2c010) at thread/qthread_unix.cpp:337
#8  0x00007f8125e846aa in start_thread (arg=0x7f809dde3700) at pthread_create.c:333
#9  0x00007f812c0cfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f8087fff700 (LWP 2734)):
#0  0x00007f812c0c48dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f812565d1ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f812565d2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f812cc0529b in QEventDispatcherGlib::processEvents (this=0x7f80800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f812cbab75a in QEventLoop::exec (this=this@entry=0x7f8087ffed80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f812c9c93d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f812c9ce2be in QThreadPrivate::start (arg=0x2ec5f40) at thread/qthread_unix.cpp:337
#7  0x00007f8125e846aa in start_thread (arg=0x7f8087fff700) at pthread_create.c:333
#8  0x00007f812c0cfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f80877fe700 (LWP 2738)):
#0  0x00007f81256a1884 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f812565cd8a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f812565d250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f812565d2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f812cc0529b in QEventDispatcherGlib::processEvents (this=0x7f80780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f812cbab75a in QEventLoop::exec (this=this@entry=0x7f80877fdd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f812c9c93d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f812c9ce2be in QThreadPrivate::start (arg=0x2c125a0) at thread/qthread_unix.cpp:337
#8  0x00007f8125e846aa in start_thread (arg=0x7f80877fe700) at pthread_create.c:333
#9  0x00007f812c0cfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f8086ffd700 (LWP 2741)):
#0  0x00007f81256a1869 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f812565c789 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f812565d11b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f812565d2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f812cc0529b in QEventDispatcherGlib::processEvents (this=0x7f807c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f812cbab75a in QEventLoop::exec (this=this@entry=0x7f8086ffcd80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f812c9c93d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f812c9ce2be in QThreadPrivate::start (arg=0x2c669e0) at thread/qthread_unix.cpp:337
#8  0x00007f8125e846aa in start_thread (arg=0x7f8086ffd700) at pthread_create.c:333
#9  0x00007f812c0cfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f80859ab700 (LWP 2744)):
#0  0x00007f812565a27e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f812565c71b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f812565d11b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f812565d2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f812cc0529b in QEventDispatcherGlib::processEvents (this=0x7f80700008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f812cbab75a in QEventLoop::exec (this=this@entry=0x7f80859aad80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f812c9c93d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f812c9ce2be in QThreadPrivate::start (arg=0x2d61800) at thread/qthread_unix.cpp:337
#8  0x00007f8125e846aa in start_thread (arg=0x7f80859ab700) at pthread_create.c:333
#9  0x00007f812c0cfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f80851aa700 (LWP 2747)):
#0  timerSourcePrepareHelper (timeout=0x7f80851a9bc4, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:130
#1  timerSourcePrepare (source=<optimized out>, timeout=0x7f80851a9bc4) at kernel/qeventdispatcher_glib.cpp:160
#2  0x00007f812565c77d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f812565d11b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f812565d2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f812cc0529b in QEventDispatcherGlib::processEvents (this=0x7f80740008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00007f812cbab75a in QEventLoop::exec (this=this@entry=0x7f80851a9d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f812c9c93d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f812c9ce2be in QThreadPrivate::start (arg=0x2f3ce00) at thread/qthread_unix.cpp:337
#9  0x00007f8125e846aa in start_thread (arg=0x7f80851aa700) at pthread_create.c:333
#10 0x00007f812c0cfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f8067fff700 (LWP 2769)):
#0  0x00007f812c0c049d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f81256a04e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f812565ccd4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f812565d190 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f812565d2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f812cc0529b in QEventDispatcherGlib::processEvents (this=0x7f80600008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00007f812cbab75a in QEventLoop::exec (this=this@entry=0x7f8067ffed80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f812c9c93d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f812c9ce2be in QThreadPrivate::start (arg=0x3424080) at thread/qthread_unix.cpp:337
#9  0x00007f8125e846aa in start_thread (arg=0x7f8067fff700) at pthread_create.c:333
#10 0x00007f812c0cfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f80658bb700 (LWP 2786)):
#0  0x00007f812c0c049d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f81256a04e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f812565ccd4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f812565d190 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f812565d2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f812cc0529b in QEventDispatcherGlib::processEvents (this=0x7f80580008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00007f812cbab75a in QEventLoop::exec (this=this@entry=0x7f80658bad80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f812c9c93d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f812c9ce2be in QThreadPrivate::start (arg=0x4368450) at thread/qthread_unix.cpp:337
#9  0x00007f8125e846aa in start_thread (arg=0x7f80658bb700) at pthread_create.c:333
#10 0x00007f812c0cfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f806d4f5700 (LWP 20469)):
#0  0x00007f812c0c049d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f81256a04e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f812565ccd4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f812565d190 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f812565d2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f812cc0529b in QEventDispatcherGlib::processEvents (this=0x7f80680086f0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0x00007f812cbab75a in QEventLoop::exec (this=this@entry=0x7f806d4f4d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f812c9c93d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f812c9ce2be in QThreadPrivate::start (arg=0x85f79c0) at thread/qthread_unix.cpp:337
#9  0x00007f8125e846aa in start_thread (arg=0x7f806d4f5700) at pthread_create.c:333
#10 0x00007f812c0cfeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f8112fec840 (LWP 2710)):
[KCrash Handler]
#6  0x00007f812bffe267 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55
#7  0x00007f812bfffeca in __GI_abort () at abort.c:89
#8  0x00007f812c9bbc88 in qt_message_fatal (context=..., message=...) at global/qlogging.cpp:1422
#9  QMessageLogger::fatal (this=this@entry=0x7fff30220df0, msg=msg@entry=0x7f812cc73160 "ASSERT: \"%s\" in file %s, line %d") at global/qlogging.cpp:643
#10 0x00007f812c9b6dce in qt_assert (assertion=<optimized out>, file=<optimized out>, line=<optimized out>) at global/qglobal.cpp:2868
#11 0x00007f8122e36960 in KFileItem::currentMimeType (this=0x7fff30221050) at /var/btrfs/@src/kio/src/core/kfileitem.cpp:1503
#12 0x00007f8122e33375 in KFileItem::mimeComment (this=0x7fff30221050) at /var/btrfs/@src/kio/src/core/kfileitem.cpp:810
#13 0x00007f806eea5f56 in KHTMLPart::overURL (this=0x285c3d0, url=..., target=...) at /var/btrfs/@src/khtml/src/khtml_part.cpp:3726
#14 0x00007f806eeb9265 in KHTMLPart::handleMouseMoveEventOver (this=0x285c3d0, event=0x7fff30221a70) at /var/btrfs/@src/khtml/src/khtml_part.cpp:6713
#15 0x00007f806eeb95d4 in KHTMLPart::khtmlMouseMoveEvent (this=0x285c3d0, event=0x7fff30221a70) at /var/btrfs/@src/khtml/src/khtml_part.cpp:6761
#16 0x00007f806eeb6df8 in KHTMLPart::customEvent (this=0x285c3d0, event=0x7fff30221a70) at /var/btrfs/@src/khtml/src/khtml_part.cpp:6311
#17 0x00007f812cbdf603 in QObject::event (this=0x285c3d0, e=<optimized out>) at kernel/qobject.cpp:1267
#18 0x00007f812d6c9b8c in QApplicationPrivate::notify_helper (this=this@entry=0x254fc50, receiver=receiver@entry=0x285c3d0, e=e@entry=0x7fff30221a70) at kernel/qapplication.cpp:3720
#19 0x00007f812d6cf230 in QApplication::notify (this=0x7fff30222bb0, receiver=0x285c3d0, e=0x7fff30221a70) at kernel/qapplication.cpp:3503
#20 0x00007f812cbadf1b in QCoreApplication::notifyInternal (this=0x7fff30222bb0, receiver=0x285c3d0, event=0x7fff30221a70) at kernel/qcoreapplication.cpp:935
#21 0x00007f812bd21ad9 in QCoreApplication::sendEvent (receiver=0x285c3d0, event=0x7fff30221a70) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qcoreapplication.h:228
#22 0x00007f806ee704ce in KHTMLView::mouseMoveEvent (this=0xc2faef0, _mouse=0x7fff302221c0) at /var/btrfs/@src/khtml/src/khtmlview.cpp:1588
#23 0x00007f812d70c188 in QWidget::event (this=this@entry=0xc2faef0, event=event@entry=0x7fff302221c0) at kernel/qwidget.cpp:9023
#24 0x00007f812d80676e in QFrame::event (this=0xc2faef0, e=0x7fff302221c0) at widgets/qframe.cpp:526
#25 0x00007f806ee73253 in KHTMLView::widgetEvent (this=0xc2faef0, e=0x7fff302221c0) at /var/btrfs/@src/khtml/src/khtmlview.cpp:2281
#26 0x00007f806ee72d10 in KHTMLView::eventFilter (this=0xc2faef0, o=0xad80370, e=0x7fff302221c0) at /var/btrfs/@src/khtml/src/khtmlview.cpp:2117
#27 0x00007f812cbadd0c in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x254fc50, receiver=receiver@entry=0xad80370, event=event@entry=0x7fff302221c0) at kernel/qcoreapplication.cpp:1031
#28 0x00007f812d6c9b6c in QApplicationPrivate::notify_helper (this=this@entry=0x254fc50, receiver=receiver@entry=0xad80370, e=e@entry=0x7fff302221c0) at kernel/qapplication.cpp:3716
#29 0x00007f812d6cfc7a in QApplication::notify (this=<optimized out>, receiver=0xad80370, e=0x7fff302221c0) at kernel/qapplication.cpp:3280
#30 0x00007f812cbadf1b in QCoreApplication::notifyInternal (this=0x7fff30222bb0, receiver=receiver@entry=0xad80370, event=event@entry=0x7fff302221c0) at kernel/qcoreapplication.cpp:935
#31 0x00007f812d6ce6f2 in QCoreApplication::sendSpontaneousEvent (event=0x7fff302221c0, receiver=0xad80370) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#32 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0xad80370, event=event@entry=0x7fff302221c0, alienWidget=alienWidget@entry=0xad80370, nativeWidget=0x31864f0, buttonDown=buttonDown@entry=0x7f812dbefa10 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:2751
#33 0x00007f812d723440 in QWidgetWindow::handleMouseEvent (this=this@entry=0x31868e0, event=event@entry=0x7fff302225e0) at kernel/qwidgetwindow.cpp:543
#34 0x00007f812d72578b in QWidgetWindow::event (this=0x31868e0, event=0x7fff302225e0) at kernel/qwidgetwindow.cpp:210
#35 0x00007f812d6c9b8c in QApplicationPrivate::notify_helper (this=this@entry=0x254fc50, receiver=receiver@entry=0x31868e0, e=e@entry=0x7fff302225e0) at kernel/qapplication.cpp:3720
#36 0x00007f812d6cf230 in QApplication::notify (this=0x7fff30222bb0, receiver=0x31868e0, e=0x7fff302225e0) at kernel/qapplication.cpp:3503
#37 0x00007f812cbadf1b in QCoreApplication::notifyInternal (this=0x7fff30222bb0, receiver=receiver@entry=0x31868e0, event=event@entry=0x7fff302225e0) at kernel/qcoreapplication.cpp:935
#38 0x00007f812ced03c8 in QCoreApplication::sendSpontaneousEvent (event=0x7fff302225e0, receiver=0x31868e0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#39 QGuiApplicationPrivate::processMouseEvent (e=0x8717cf0) at kernel/qguiapplication.cpp:1772
#40 0x00007f812ced2005 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x8717cf0) at kernel/qguiapplication.cpp:1576
#41 0x00007f812ceb75b8 in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:572
#42 0x00007f8112c9f250 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#43 0x00007f812565cff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007f812565d250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f812565d2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f812cc0527f in QEventDispatcherGlib::processEvents (this=0x2584b70, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#47 0x00007f812cbab75a in QEventLoop::exec (this=this@entry=0x7fff30222960, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#48 0x00007f812cbb32cc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#49 0x0000000000408992 in main (argc=2, argv=0x7fff30222ce8) at /var/btrfs/@src/kdepim/kontact/src/main.cpp:221

Possible duplicates by query: bug 353914, bug 353057, bug 352840, bug 352098, bug 351793.

Reported using DrKonqi