Application: krita (2.1.1)
KDE Platform Version: 4.4.1 (KDE 4.4.1)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
I can select colors fine, but when I try to color in the box, thing crashes right away.

I don't have debugging symbols installed so the BT is probably not useful, and I am not going to install them, but reporting anyway in case the little that's there is helpful and/or just so that this problem gets reported.

The crash can be reproduced every time.

 -- Backtrace:
Application: Krita (krita), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f93dc975780 (LWP 28248))]

Thread 3 (Thread 0x7f93b7f60710 (LWP 28255)):
#0  0x00007f93dc42b503 in select () from /lib/libc.so.6
#1  0x00007f93db8cf19e in qt_safe_select(int, fd_set*, fd_set*, fd_set*, timeval const*) () from /usr/lib/libQtCore.so.4
#2  0x00007f93db8d459d in QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>, timeval*) () from /usr/lib/libQtCore.so.4
#3  0x00007f93db8d558b in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#4  0x00007f93db8a70c2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#5  0x00007f93db8a749c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#6  0x00007f93db7b1759 in QThread::exec() () from /usr/lib/libQtCore.so.4
#7  0x00007f93db7b4155 in ?? () from /usr/lib/libQtCore.so.4
#8  0x00007f93d7afb81a in start_thread () from /lib/libpthread.so.0
#9  0x00007f93dc431c7d in clone () from /lib/libc.so.6
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f93b6aab710 (LWP 28292)):
[KCrash Handler]
#5  0x00007f93ca88d8e0 in KisImage::locked() const () from /usr/lib/libkritaimage.so.6
#6  0x00007f93ca895bd3 in KisImage::updateProjection(KisSharedPtr<KisNode>, QRect const&) () from /usr/lib/libkritaimage.so.6
#7  0x00007f93ca8a1316 in KisLayer::setDirty(QRect const&) () from /usr/lib/libkritaimage.so.6
#8  0x00007f93ca89ec01 in KisLayer::setDirty(QRegion const&) () from /usr/lib/libkritaimage.so.6
#9  0x00007f93cb257c59 in KisToolFreehand::setDirty(QRegion const&) () from /usr/lib/libkritaui.so.6
#10 0x00007f93b45cdab9 in MixerTool::setDirty(QRegion const&) () from /usr/lib/kde4/kritapainterlymixer.so
#11 0x00007f93cb25b587 in FreehandPaintAtJob::run() () from /usr/lib/libkritaui.so.6
#12 0x00007f93db7aa4c9 in ?? () from /usr/lib/libQtCore.so.4
#13 0x00007f93db7b4155 in ?? () from /usr/lib/libQtCore.so.4
#14 0x00007f93d7afb81a in start_thread () from /lib/libpthread.so.0
#15 0x00007f93dc431c7d in clone () from /lib/libc.so.6
#16 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f93dc975780 (LWP 28248)):
#0  0x00007f93dc41ca37 in sched_yield () from /lib/libc.so.6
#1  0x00007f93cec72435 in ?? () from /usr/lib/libGLcore.so.1
#2  0x00007f93cec7256b in ?? () from /usr/lib/libGLcore.so.1
#3  0x00007f93ce95bc6f in ?? () from /usr/lib/libGLcore.so.1
#4  0x00007f93ce8f5ea4 in ?? () from /usr/lib/libGLcore.so.1
#5  0x00007f93cec4847d in ?? () from /usr/lib/libGLcore.so.1
#6  0x00007f93cec483ac in ?? () from /usr/lib/libGLcore.so.1
#7  0x00007f93d0e132f3 in _fini () from /usr/lib/libGL.so.1
#8  0x00007f93dc8cbd8c in _dl_fini () from /lib/ld-linux-x86-64.so.2
#9  0x00007f93dc397af2 in __run_exit_handlers () from /lib/libc.so.6
#10 0x00007f93dc397b45 in exit () from /lib/libc.so.6
#11 0x00007f93dace2dd8 in ?? () from /usr/lib/libQtGui.so.4
#12 0x00007f93d866c718 in KApplication::xioErrhandler(_XDisplay*) () from /usr/lib/libkdeui.so.5
#13 0x00007f93d502068e in _XIOError () from /usr/lib/libX11.so.6
#14 0x00007f93d5027a25 in process_responses () from /usr/lib/libX11.so.6
#15 0x00007f93d50282d7 in _XEventsQueued () from /usr/lib/libX11.so.6
#16 0x00007f93d5010cdb in XEventsQueued () from /usr/lib/libX11.so.6
#17 0x00007f93dad1bacc in ?? () from /usr/lib/libQtGui.so.4
#18 0x00007f93db8a70c2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#19 0x00007f93db8a749c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#20 0x00007f93db8ab1db in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#21 0x00007f93dc6bc7b5 in kdemain () from /usr/lib/libkdeinit4_krita.so
#22 0x00007f93dc381b6d in __libc_start_main () from /lib/libc.so.6
#23 0x0000000000400629 in _start ()

Reported using DrKonqi