Locally compiled rawtherapee 4.0.11.60 occasionally crashes when using locally built oxygen-gtk from git master from 2013-12-06.
The crash occurs very rarely, after hours of intensive usage of the application.
With the package from the distribution (kubuntu 13.10), it crashed much more often, when closing the image editor tab about every 6th-or-so image.

See backtrace under "Additional Information".

This issue may be related to occasional crashes of Eclipse:
Stack: [0x00007f198348f000,0x00007f1983590000], sp=0x00007f198358a870, free space=1006k Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code) C [libgtk-x11-2.0.so.0+0x24492a] gtk_widget_queue_draw+0x1a C [liboxygen-gtk.so+0x226199] Oxygen::ToolBarStateData::delayedUpdate(void*)+0x89 C [liboxygen-gtk.so+0x223b2c] Oxygen::TimeLine::trigger() const+0x2e C [liboxygen-gtk.so+0x2238fa] Oxygen::TimeLine::start()+0xae C [liboxygen-gtk.so+0x225c17] Oxygen::ToolBarStateData::updateState(_GtkWidget*, bool, bool)+0x20d C [liboxygen-gtk.so+0x22587d] Oxygen::ToolBarStateData::registerChild(_GtkWidget*, bool)+0x2f3 C [liboxygen-gtk.so+0x1e5339] Oxygen::ToolBarStateEngine::registerChild(_GtkWidget*, _GtkWidget*, bool)+0x71 C [liboxygen-gtk.so+0x2ec50c] Oxygen::draw_box(_GtkStyle*, _GdkDrawable*, GtkStateType, GtkShadowType, _GdkRectangle*, _GtkWidget*, char const*, int, int, int, int)+0x1f60

Some history in a "hijacked" bug: https://bugs.kde.org/show_bug.cgi?id=325196

Reproducible: Sometimes

Steps to Reproduce:
1. Open an image in the editor, change some settings like exposure, white balance, ...
2. Close the editor tab
3. Repeat 1) and 2) until crash occurs
Actual Results:  
Application should not crash

Expected Results:  
Application crashes sometimes

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff694092a in IA__gtk_widget_queue_draw (widget=0x4331970)
    at /build/buildd/gtk+2.0-2.24.20/gtk/gtkwidget.c:3772
3772    /build/buildd/gtk+2.0-2.24.20/gtk/gtkwidget.c: Datei oder Verzeichnis nicht gefunden.
(gdb) bt full
#0  0x00007ffff694092a in IA__gtk_widget_queue_draw (widget=0x4331970)
    at /build/buildd/gtk+2.0-2.24.20/gtk/gtkwidget.c:3772
        __inst = 0x4331970
        __t = 28524512
        __r = <optimised out>
        _g_boolean_var_ = <optimised out>
        rect = {x = 0, y = 0, width = 0, height = 0}
#1  0x00007fffeaa2b5ba in Oxygen::Gtk::gtk_widget_queue_draw (widget=0x4331970, rect=0x0)
    at /data/Linux/oxygen-gtk/oxygen-gtk/src/animations/../oxygengtkutils.h:233
No locals.
#2  0x00007fffeaa35199 in Oxygen::ToolBarStateData::delayedUpdate (pointer=0x282f018)
    at /data/Linux/oxygen-gtk/oxygen-gtk/src/animations/oxygentoolbarstatedata.cpp:330
        rect = {x = 341, y = 39, width = 126, height = 43}
        data = @0x282f018: {<Oxygen::FollowMouseData> = {
            _vptr.FollowMouseData = 0x7fffeada3410 <vtable for Oxygen::ToolBarStateData+16>, _followMouse = false, _timeLine = {
              _vptr.TimeLine = 0x7fffeada3390 <vtable for Oxygen::TimeLine+16>, 
              _duration = 50, _enabled = true, _direction = Oxygen::TimeLine::Forward, 
              _running = false, _value = 0, _time = 0, _timer = 0x281ca30, 
              _func = 0x7fffeaa351d2 <Oxygen::ToolBarStateData::followMouseUpdate(void*)>, _data = 0x282f018, static _steps = 10}, _startRect = {x = 0, y = 0, width = -1, 
              height = -1}, _endRect = {x = 0, y = 0, width = -1, height = -1}, 
            _animatedRect = {x = 0, y = 0, width = -1, height = -1}, _dirtyRect = {
              x = 0, y = 0, width = -1, height = -1}}, _target = 0x1bea070, _leaveId = {
---Type <return> to continue, or q <return> to quit---
            _vptr.Signal = 0x7fffeada2030 <vtable for Oxygen::Signal+16>, _id = 13965, 
            _object = 0x1bea070}, _dirtyRect = {x = 0, y = 0, width = -1, height = -1}, 
          _previous = {_timeLine = {
              _vptr.TimeLine = 0x7fffeada3390 <vtable for Oxygen::TimeLine+16>, 
              _duration = 150, _enabled = true, _direction = Oxygen::TimeLine::Backward, 
              _running = false, _value = 0, _time = 150, _timer = 0x2832500, 
              _func = 0x7fffeaa35110 <Oxygen::ToolBarStateData::delayedUpdate(void*)>, 
              _data = 0x282f018, static _steps = 10}, _widget = 0x4331970, _rect = {
              x = 435, y = 41, width = 30, height = 36}}, _current = {_timeLine = {
              _vptr.TimeLine = 0x7fffeada3390 <vtable for Oxygen::TimeLine+16>, 
              _duration = 150, _enabled = true, _direction = Oxygen::TimeLine::Forward, 
              _running = true, _value = 0, _time = 0, _timer = 0x281c560, 
              _func = 0x7fffeaa35110 <Oxygen::ToolBarStateData::delayedUpdate(void*)>, 
              _data = 0x282f018, static _steps = 10}, _widget = 0x22702b0, _rect = {
              x = 343, y = 61, width = 18, height = 19}}, _hoverData = {_M_t = {
              _M_impl = {<std::allocator<std::_Rb_tree_node<std::pair<_GtkWidget* const, Oxygen::ToolBarStateData::HoverData> > >> = {<__gnu_cxx::new_allocator<std::_Rb_tree_node<std::pair<_GtkWidget* const, Oxygen::ToolBarStateData::HoverData> > >> = {<No data fields>}, <No data fields>}, 
                _M_key_compare = {<std::binary_function<_GtkWidget*, _GtkWidget*, bool>> = {<No data fields>}, <No data fields>}, _M_header = {_M_color = std::_S_red, 
                  _M_parent = 0x5194780, _M_left = 0x3459710, _M_right = 0x4dd87d0}, 
                _M_node_count = 92}}}, static _timeOut = 50, _timer = {
            _vptr.Timer = 0x7fffeada1b50 <vtable for Oxygen::Timer+16>, _timerId = 0, 
---Type <return> to continue, or q <return> to quit---
            _func = 0x0, _data = 0x0}}
#3  0x00007fffeaa32b2c in Oxygen::TimeLine::trigger (this=0x282f130)
    at /data/Linux/oxygen-gtk/oxygen-gtk/src/animations/oxygentimeline.h:126
No locals.
#4  0x00007fffeaa328fa in Oxygen::TimeLine::start (this=0x282f130)
    at /data/Linux/oxygen-gtk/oxygen-gtk/src/animations/oxygentimeline.cpp:98
        __PRETTY_FUNCTION__ = "void Oxygen::TimeLine::start()"
#5  0x00007fffeaa34c17 in Oxygen::ToolBarStateData::updateState (this=0x282f018, 
    widget=0x22702b0, state=true, delayed=false)
    at /data/Linux/oxygen-gtk/oxygen-gtk/src/animations/oxygentoolbarstatedata.cpp:176
        startRect = {x = 0, y = 0, width = -1, height = -1}
        animate = true
        rect = {x = 343, y = 61, width = 18, height = 19}
#6  0x00007fffeaa35078 in Oxygen::ToolBarStateData::childEnterNotifyEvent (
    widget=0x22702b0, data=0x282f018)
    at /data/Linux/oxygen-gtk/oxygen-gtk/src/animations/oxygentoolbarstatedata.cpp:285
No locals.
#7  0x00007ffff6829645 in _gtk_marshal_BOOLEAN__BOXED (closure=0x502d020, 
    return_value=0x7fffffffdb70, n_param_values=<optimised out>, 
    param_values=0x7fffffffdc20, invocation_hint=<optimised out>, marshal_data=0x0)
    at /build/buildd/gtk+2.0-2.24.20/gtk/gtkmarshalers.c:86
        callback = <optimised out>
        cc = <optimised out>
        data1 = 0x22702b0
---Type <return> to continue, or q <return> to quit---
        data2 = <optimised out>
        v_return = <optimised out>
        __PRETTY_FUNCTION__ = "_gtk_marshal_BOOLEAN__BOXED"
#8  0x00007ffff74b9188 in g_closure_invoke ()
   from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#9  0x00007ffff74cab1d in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#10 0x00007ffff74d24f9 in g_signal_emit_valist ()
   from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#11 0x00007ffff74d2ae2 in g_signal_emit ()
   from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#12 0x00007ffff69395f4 in gtk_widget_event_internal (widget=widget@entry=0x22702b0, 
    event=event@entry=0x3bcb510) at /build/buildd/gtk+2.0-2.24.20/gtk/gtkwidget.c:5010
        signal_num = <optimised out>
        return_val = 0
#13 0x00007ffff69398c9 in IA__gtk_widget_event (widget=widget@entry=0x22702b0, 
    event=event@entry=0x3bcb510) at /build/buildd/gtk+2.0-2.24.20/gtk/gtkwidget.c:4807
        __PRETTY_FUNCTION__ = "IA__gtk_widget_event"
#14 0x00007ffff682837c in IA__gtk_main_do_event (event=0x3bcb510)
    at /build/buildd/gtk+2.0-2.24.20/gtk/gtkmain.c:1712
        event_widget = 0x22702b0
---Type <return> to continue, or q <return> to quit---
        grab_widget = 0x22702b0
        window_group = 0x2787d80
        rewritten_event = <optimised out>
        tmp_list = <optimised out>
        __PRETTY_FUNCTION__ = "IA__gtk_main_do_event"
#15 0x00007ffff64a327c in gdk_event_dispatch (source=<optimised out>, 
    callback=<optimised out>, user_data=<optimised out>)
    at /build/buildd/gtk+2.0-2.24.20/gdk/x11/gdkevents-x11.c:2403
        display = <optimised out>
        event = 0x3bcb510
#16 0x00007ffff71f03b6 in g_main_context_dispatch ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#17 0x00007ffff71f0708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#18 0x00007ffff71f0b0a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#19 0x00007ffff6827277 in IA__gtk_main ()
    at /build/buildd/gtk+2.0-2.24.20/gtk/gtkmain.c:1271
        tmp_list = 0x0
        functions = 0x0
        init = <optimised out>
        loop = 0x2832300
#20 0x00007ffff60ad3bd in Gtk::Main::run(Gtk::Window&) ()
---Type <return> to continue, or q <return> to quit---
   from /usr/lib/x86_64-linux-gnu/libgtkmm-2.4.so.1
No symbol table info available.
#21 0x00000000004cac4c in main ()
No symbol table info available.
(gdb)