Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x0000000000000000 in ?? ()
(gdb) thread apply all bt

Thread 5 (Thread 0x7ff8f4992700 (LWP 23563)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff92243c80b in QWaitCondition::wait(QMutex*, unsigned long) () from /opt/qt54/lib/libQt5Core.so.5
#2  0x00007ff92319ff1d in QFileInfoGatherer::run() () from /opt/qt54/lib/libQt5Widgets.so.5
#3  0x00007ff92243b7af in QThreadPrivate::start(void*) () from /opt/qt54/lib/libQt5Core.so.5
#4  0x00007ff91cf7e182 in start_thread (arg=0x7ff8f4992700) at pthread_create.c:312
#5  0x00007ff921bb447d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7ff8f5594700 (LWP 23561)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff92243c80b in QWaitCondition::wait(QMutex*, unsigned long) () from /opt/qt54/lib/libQt5Core.so.5
#2  0x00007ff922435d66 in QSemaphore::tryAcquire(int, int) () from /opt/qt54/lib/libQt5Core.so.5
#3  0x00007ff920430763 in KisTileDataSwapper::waitForWork (this=<optimized out>)
    at /home/fazekas/Asztal/krita-dev/krita/libs/image/tiles3/swap/kis_tile_data_swapper.cpp:86
#4  0x00007ff92043092a in KisTileDataSwapper::run (this=0x7ff920888600 <_ZZN12_GLOBAL__N_116Q_QGS_s_instance13innerFunctionEvE6holder+64>)
    at /home/fazekas/Asztal/krita-dev/krita/libs/image/tiles3/swap/kis_tile_data_swapper.cpp:92
#5  0x00007ff92243b7af in QThreadPrivate::start(void*) () from /opt/qt54/lib/libQt5Core.so.5
#6  0x00007ff91cf7e182 in start_thread (arg=0x7ff8f5594700) at pthread_create.c:312
#7  0x00007ff921bb447d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7ff8f5d95700 (LWP 23560)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff92243c80b in QWaitCondition::wait(QMutex*, unsigned long) () from /opt/qt54/lib/libQt5Core.so.5
#2  0x00007ff922435adb in QSemaphore::acquire(int) () from /opt/qt54/lib/libQt5Core.so.5
#3  0x00007ff920414f1e in KisTileDataPooler::waitForWork (
    this=this@entry=0x7ff9208885c0 <_ZZN12_GLOBAL__N_116Q_QGS_s_instance13innerFunctionEvE6holder>)
    at /home/fazekas/Asztal/krita-dev/krita/libs/image/tiles3/kis_tile_data_pooler.cc:165
#4  0x00007ff920415850 in KisTileDataPooler::run (this=0x7ff9208885c0 <_ZZN12_GLOBAL__N_116Q_QGS_s_instance13innerFunctionEvE6holder>)
    at /home/fazekas/Asztal/krita-dev/krita/libs/image/tiles3/kis_tile_data_pooler.cc:187
#5  0x00007ff92243b7af in QThreadPrivate::start(void*) () from /opt/qt54/lib/libQt5Core.so.5
#6  0x00007ff91cf7e182 in start_thread (arg=0x7ff8f5d95700) at pthread_create.c:312
#7  0x00007ff921bb447d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7ff9118c7700 (LWP 23558)):
#0  0x00007ff921ba712d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ff9208a1b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007ff9208a364f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007ff9140ceae9 in QXcbEventReader::run() () from /opt/qt54/plugins/platforms/libqxcb.so
#4  0x00007ff92243b7af in QThreadPrivate::start(void*) () from /opt/qt54/lib/libQt5Core.so.5
#5  0x00007ff91cf7e182 in start_thread (arg=0x7ff9118c7700) at pthread_create.c:312
#6  0x00007ff921bb447d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7ff9242e37c0 (LWP 23557)):
#0  0x0000000000000000 in ?? ()
#1  0x00007ff923cc6210 in KisOpenGLImageTextures::destroyImageTextureTiles (this=0x918bae0)
    at /home/fazekas/Asztal/krita-dev/krita/libs/ui/opengl/kis_opengl_image_textures.cpp:227
#2  0x00007ff923ccdca2 in KisOpenGLImageTextures::~KisOpenGLImageTextures (this=0x918bae0, __in_chrg=<optimized out>)
    at /home/fazekas/Asztal/krita-dev/krita/libs/ui/opengl/kis_opengl_image_textures.cpp:117
#3  0x00007ff923ccde89 in KisOpenGLImageTextures::~KisOpenGLImageTextures (this=0x918bae0, __in_chrg=<optimized out>)
    at /home/fazekas/Asztal/krita-dev/krita/libs/ui/opengl/kis_opengl_image_textures.cpp:119
#4  0x00007ff923e4f1bf in deref (sp=<optimized out>, t=<optimized out>)
    at /home/fazekas/Asztal/krita-dev/krita/libs/global/kis_shared_ptr.h:214
#5  deref (this=0x917d2f0) at /home/fazekas/Asztal/krita-dev/krita/libs/global/kis_shared_ptr.h:221
#6  ~KisSharedPtr (this=0x917d2f0, __in_chrg=<optimized out>) at /home/fazekas/Asztal/krita-dev/krita/libs/global/kis_shared_ptr.h:109
#7  ~Private (this=0x917d2f0, __in_chrg=<optimized out>) at /home/fazekas/Asztal/krita-dev/krita/libs/ui/kis_animation_frame_cache.cpp:43
#8  cleanup (pointer=0x917d2f0) at /opt/qt54/include/QtCore/qscopedpointer.h:54
#9  ~QScopedPointer (this=0x7a4d230, __in_chrg=<optimized out>) at /opt/qt54/include/QtCore/qscopedpointer.h:101
---Type <return> to continue, or q <return> to quit---
#10 KisAnimationFrameCache::~KisAnimationFrameCache (this=0x7a4d210, __in_chrg=<optimized out>)
    at /home/fazekas/Asztal/krita-dev/krita/libs/ui/kis_animation_frame_cache.cpp:179
#11 0x00007ff923e4f219 in KisAnimationFrameCache::~KisAnimationFrameCache (this=0x7a4d210, __in_chrg=<optimized out>)
    at /home/fazekas/Asztal/krita-dev/krita/libs/ui/kis_animation_frame_cache.cpp:182
#12 0x00007ff8f8f214ae in deref (sp=<optimized out>, t=<optimized out>)
    at /home/fazekas/Asztal/krita-dev/krita/libs/global/kis_shared_ptr.h:214
#13 attach (p=<optimized out>, this=<optimized out>) at /home/fazekas/Asztal/krita-dev/krita/libs/global/kis_shared_ptr.h:498
#14 operator= (o=..., this=<optimized out>) at /home/fazekas/Asztal/krita-dev/krita/libs/global/kis_shared_ptr.h:113
#15 TimelineFramesModel::setFrameCache (this=0x8ca6620, cache=...)
    at /home/fazekas/Asztal/krita-dev/krita/plugins/dockers/animation/timeline_frames_model.cpp:217
#16 0x00007ff8f8f17f54 in TimelineDocker::setCanvas (this=0x8ca1c00, canvas=0x0)
    at /home/fazekas/Asztal/krita-dev/krita/plugins/dockers/animation/timeline_docker.cpp:91
#17 0x00007ff91faa7f38 in KoCanvasControllerWidget::Private::unsetCanvas (this=0x9315b40)
    at /home/fazekas/Asztal/krita-dev/krita/libs/flake/KoCanvasControllerWidget.cpp:176
#18 0x00007ff91faa7f90 in KoCanvasControllerWidget::~KoCanvasControllerWidget (this=0x931ab60, __in_chrg=<optimized out>)
    at /home/fazekas/Asztal/krita-dev/krita/libs/flake/KoCanvasControllerWidget.cpp:217
#19 0x00007ff923e1796e in ~Private (this=0x931aae0, __in_chrg=<optimized out>)
    at /home/fazekas/Asztal/krita-dev/krita/libs/ui/KisView.cpp:105
#20 KisView::~KisView (this=0x91af0a0, __in_chrg=<optimized out>) at /home/fazekas/Asztal/krita-dev/krita/libs/ui/KisView.cpp:270
#21 0x00007ff923e17a79 in KisView::~KisView (this=0x91af0a0, __in_chrg=<optimized out>)
    at /home/fazekas/Asztal/krita-dev/krita/libs/ui/KisView.cpp:271
#22 0x00007ff92269082c in QObjectPrivate::deleteChildren() () from /opt/qt54/lib/libQt5Core.so.5
#23 0x00007ff922fbc48a in QWidget::~QWidget() () from /opt/qt54/lib/libQt5Widgets.so.5
#24 0x00007ff9230e95e9 in QMdiSubWindow::~QMdiSubWindow() () from /opt/qt54/lib/libQt5Widgets.so.5
#25 0x00007ff922692d48 in QObject::event(QEvent*) () from /opt/qt54/lib/libQt5Core.so.5
#26 0x00007ff922fbfd14 in QWidget::event(QEvent*) () from /opt/qt54/lib/libQt5Widgets.so.5
#27 0x00007ff9230e9f8b in QMdiSubWindow::event(QEvent*) () from /opt/qt54/lib/libQt5Widgets.so.5
#28 0x00007ff922f8081c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /opt/qt54/lib/libQt5Widgets.so.5
#29 0x00007ff922f85670 in QApplication::notify(QObject*, QEvent*) () from /opt/qt54/lib/libQt5Widgets.so.5
#30 0x00007ff923db8ea7 in KisApplication::notify (this=<optimized out>, receiver=0x9288370, event=0x99a7f80)
    at /home/fazekas/Asztal/krita-dev/krita/libs/ui/KisApplication.cpp:525
#31 0x00007ff922662665 in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /opt/qt54/lib/libQt5Core.so.5
#32 0x00007ff9226644ff in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /opt/qt54/lib/libQt5Core.so.5
#33 0x00007ff9226ba573 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /opt/qt54/lib/libQt5Core.so.5
#34 0x00007ff91ca65e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007ff91ca66048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007ff91ca660ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007ff9226b99ec in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /opt/qt54/lib/libQt5Core.so.5
#38 0x00007ff9226605cb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /opt/qt54/lib/libQt5Core.so.5
#39 0x00007ff922667c36 in QCoreApplication::exec() () from /opt/qt54/lib/libQt5Core.so.5
#40 0x0000000000402e1b in main (argc=1, argv=0x7ffc524218b8) at /home/fazekas/Asztal/krita-dev/krita/krita/main.cc:177