Application: krita (3.0.1)
 (Compiled from sources)
Qt Version: 5.6.1
Frameworks Version: 5.26.0
Operating System: Linux 4.4.23 x86_64
Distribution (Platform): Gentoo Packages

-- Information about the crash:
I think krita crashed while using the clone tool on a big image, maybe right clicking on the image to activate the menu

-- Backtrace:
Application: Krita (krita), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
84	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f17a08857c0 (LWP 26793))]

Thread 6 (Thread 0x7f179ddfe700 (LWP 26794)):
#0  0x00007f17ad08492d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f17ab9218f2 in _xcb_conn_wait () from /usr/lib64/libxcb.so.1
#2  0x00007f17ab9236f7 in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007f17a0555ce9 in QXcbEventReader::run() () from /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f17ad9f9f1c in QThreadPrivate::start(void*) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f17a7d8a434 in start_thread (arg=0x7f179ddfe700) at pthread_create.c:334
#6  0x00007f17ad08d29d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f1794cdb700 (LWP 26795)):
#0  0x00007f17ad08090d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f17a67751d0 in read (__nbytes=16, __buf=0x7f1794cdabc0, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#2  g_wakeup_acknowledge (wakeup=0x7f17980015c0) at /usr/src/debug/dev-libs/glib-2.48.2/glib-2.48.2/glib/gwakeup.c:210
#3  0x00007f17a6731a94 in g_main_context_check (context=context@entry=0x7f1790000990, max_priority=2147483647, fds=fds@entry=0x7f1790003020, n_fds=n_fds@entry=1) at /usr/src/debug/dev-libs/glib-2.48.2/glib-2.48.2/glib/gmain.c:3632
#4  0x00007f17a6731f50 in g_main_context_iterate (context=context@entry=0x7f1790000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.48.2/glib-2.48.2/glib/gmain.c:3837
#5  0x00007f17a67320bc in g_main_context_iteration (context=0x7f1790000990, may_block=1) at /usr/src/debug/dev-libs/glib-2.48.2/glib-2.48.2/glib/gmain.c:3901
#6  0x00007f17adbe3a5b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#7  0x00007f17adb9425a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#8  0x00007f17ad9f5b04 in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#9  0x00007f17afb2f5c5 in QDBusConnectionManager::run() () from /usr/lib64/libQt5DBus.so.5
#10 0x00007f17ad9f9f1c in QThreadPrivate::start(void*) () from /usr/lib64/libQt5Core.so.5
#11 0x00007f17a7d8a434 in start_thread (arg=0x7f1794cdb700) at pthread_create.c:334
#12 0x00007f17ad08d29d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f178128a700 (LWP 26796)):
#0  pthread_cond_wait () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f17ad9fa56a in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f17ad9f481b in QSemaphore::acquire(int) () from /usr/lib64/libQt5Core.so.5
#3  0x00007f17ab45a40e in KisTileDataPooler::waitForWork() () from /usr/lib64/libkritaimage.so.15
#4  0x00007f17ab45abca in KisTileDataPooler::run() () from /usr/lib64/libkritaimage.so.15
#5  0x00007f17ad9f9f1c in QThreadPrivate::start(void*) () from /usr/lib64/libQt5Core.so.5
#6  0x00007f17a7d8a434 in start_thread (arg=0x7f178128a700) at pthread_create.c:334
#7  0x00007f17ad08d29d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f1780a89700 (LWP 26797)):
#0  pthread_cond_wait () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f17ad9fa56a in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f17ad9f4ac3 in QSemaphore::tryAcquire(int, int) () from /usr/lib64/libQt5Core.so.5
#3  0x00007f17ab4741ba in KisTileDataSwapper::run() () from /usr/lib64/libkritaimage.so.15
#4  0x00007f17ad9f9f1c in QThreadPrivate::start(void*) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f17a7d8a434 in start_thread (arg=0x7f1780a89700) at pthread_create.c:334
#6  0x00007f17ad08d29d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f17577fe700 (LWP 26806)):
#0  pthread_cond_wait () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f17ad9fa56a in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#2  0x00007f17ae63b5f2 in QFileInfoGatherer::run() () from /usr/lib64/libQt5Widgets.so.5
#3  0x00007f17ad9f9f1c in QThreadPrivate::start(void*) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f17a7d8a434 in start_thread (arg=0x7f17577fe700) at pthread_create.c:334
#5  0x00007f17ad08d29d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f17a08857c0 (LWP 26793)):
[KCrash Handler]
#6  0x00007f17af40769d in KisPopupPalette::showPopupPalette(bool) () from /usr/lib64/libkritaui.so.15
#7  0x00007f17af407701 in KisPopupPalette::showPopupPalette(QPoint const&) () from /usr/lib64/libkritaui.so.15
#8  0x00007f17af54e4cb in KisShowPaletteAction::begin(int, QEvent*) () from /usr/lib64/libkritaui.so.15
#9  0x00007f17af54fe44 in KisShortcutMatcher::tryRunReadyShortcut(Qt::MouseButton, QEvent*) () from /usr/lib64/libkritaui.so.15
#10 0x00007f17af5510ff in KisShortcutMatcher::buttonPressed(Qt::MouseButton, QEvent*) () from /usr/lib64/libkritaui.so.15
#11 0x00007f17af53e94c in KisInputManager::eventFilterImpl(QEvent*) () from /usr/lib64/libkritaui.so.15
#12 0x00007f17adb951ad in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#13 0x00007f17ae41ef95 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#14 0x00007f17ae425c71 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#15 0x00007f17af5a4347 in KisApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkritaui.so.15
#16 0x00007f17adb953ea in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#17 0x00007f17af657b1e in processTabletEvent(QWindowSystemInterfacePrivate::TabletEvent*) () from /usr/lib64/libkritaui.so.15
#18 0x00007f17af652021 in QXcbConnection::xi2ReportTabletEvent(QXcbConnection::TabletData&, void*) () from /usr/lib64/libkritaui.so.15
#19 0x00007f17af6523a9 in QXcbConnection::xi2HandleTabletEvent(void*, QXcbConnection::TabletData*, QWindow*) () from /usr/lib64/libkritaui.so.15
#20 0x00007f17af65593e in QXcbConnection::xi2HandleEvent(xcb_ge_event_t*) () from /usr/lib64/libkritaui.so.15
#21 0x00007f17af659106 in KisXi2EventFilter::nativeEventFilter(QByteArray const&, void*, long*) () from /usr/lib64/libkritaui.so.15
#22 0x00007f17adb9334c in QAbstractEventDispatcher::filterNativeEvent(QByteArray const&, void*, long*) () from /usr/lib64/libQt5Core.so.5
#23 0x00007f17a0559c65 in QXcbConnection::handleXcbEvent(xcb_generic_event_t*) () from /usr/lib64/libQt5XcbQpa.so.5
#24 0x00007f17a055abc6 in QXcbConnection::processXcbEvents() () from /usr/lib64/libQt5XcbQpa.so.5
#25 0x00007f17adbbd7e1 in QObject::event(QEvent*) () from /usr/lib64/libQt5Core.so.5
#26 0x00007f17ae41efbc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#27 0x00007f17ae4244f6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#28 0x00007f17af5a4347 in KisApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkritaui.so.15
#29 0x00007f17adb953ea in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#30 0x00007f17adb9740a in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/libQt5Core.so.5
#31 0x00007f17adbe39c3 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /usr/lib64/libQt5Core.so.5
#32 0x00007f17a6731db7 in g_main_dispatch (context=0x7f17980016f0) at /usr/src/debug/dev-libs/glib-2.48.2/glib-2.48.2/glib/gmain.c:3154
#33 g_main_context_dispatch (context=context@entry=0x7f17980016f0) at /usr/src/debug/dev-libs/glib-2.48.2/glib-2.48.2/glib/gmain.c:3769
#34 0x00007f17a6732010 in g_main_context_iterate (context=context@entry=0x7f17980016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /usr/src/debug/dev-libs/glib-2.48.2/glib-2.48.2/glib/gmain.c:3840
#35 0x00007f17a67320bc in g_main_context_iteration (context=0x7f17980016f0, may_block=1) at /usr/src/debug/dev-libs/glib-2.48.2/glib-2.48.2/glib/gmain.c:3901
#36 0x00007f17adbe3a3f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#37 0x00007f17adb9425a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#38 0x00007f17adb9bbdc in QCoreApplication::exec() () from /usr/lib64/libQt5Core.so.5
#39 0x0000000000404fe1 in main ()

Reported using DrKonqi