I tried to maximize a Gwenview window, showing a .JPG picture. Gwenview crashed, so I started filing a crash. Suddenly, it was drKonqi the one who crashed. Here is the backtrace:

Application: drkonqi (drkonqi), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f9398fbe8c0 (LWP 21132))]

Thread 4 (Thread 0x7f9372598700 (LWP 21136)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f93763264d3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#2  0x00007f9376325c17 in ?? () from /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so
#3  0x00007f939353070a in start_thread (arg=0x7f9372598700) at pthread_create.c:333
#4  0x00007f93953c10af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 3 (Thread 0x7f937f720700 (LWP 21134)):
#0  0x00007fff71dcbb02 in clock_gettime ()
#1  0x00007f93953cf846 in __GI___clock_gettime (clock_id=1, tp=0x7f937f71fa30) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f9395b62726 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f9395ce2039 in QTimerInfoList::updateCurrentTime() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9395ce25e5 in QTimerInfoList::timerWait(timespec&) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9395ce399e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9392b9aed9 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f9392b9b8fb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f9392b9baec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f9395ce44ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f9395c8c0fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f9395ab1d43 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f9399076575 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#13 0x00007f9395ab6c68 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f939353070a in start_thread (arg=0x7f937f720700) at pthread_create.c:333
#15 0x00007f93953c10af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 2 (Thread 0x7f93873e8700 (LWP 21133)):
#0  0x00007f93953b50bd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f9390d0ac62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f9390d0c8d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f9389974299 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f9395ab6c68 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f939353070a in start_thread (arg=0x7f93873e8700) at pthread_create.c:333
#6  0x00007f93953c10af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7f9398fbe8c0 (LWP 21132)):
[KCrash Handler]
#6  0x000055cefd261b12 in ?? ()
#7  0x00007f9396135978 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#8  0x00007f9396135bde in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#9  0x00007f9395cbbb49 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f939638b73a in QTextDocument::contentsChange(int, int, int) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#11 0x00007f93960f341e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#12 0x00007f93967ac2fe in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007f9396789b59 in QTextEdit::append(QString const&) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x000055cefd24fb2d in ?? ()
#15 0x00007f9395cbbbec in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x000055cefd29ce75 in ?? ()
#17 0x000055cefd253e52 in ?? ()
#18 0x00007f9395cbbbec in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f9395bbff9e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f9395bc1dc8 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007f9395cbbb49 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007f9395d382fe in QSocketNotifier::activated(int, QSocketNotifier::QPrivateSignal) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007f9395cc7d12 in QSocketNotifier::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f93965cd8ac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007f93965d2d4f in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007f9395c8e3b0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007f9395ce493d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007f9392b9b7d7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f9392b9ba40 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f9392b9baec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f9395ce448f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#32 0x00007f9395c8c0fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007f9395c9490c in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x000055cefd247e1f in ?? ()
#35 0x00007f93952d93f1 in __libc_start_main (main=0x55cefd246ed0, argc=21, argv=0x7fff71d2dad8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff71d2dac8) at ../csu/libc-start.c:291
#36 0x000055cefd247ffa in _start ()