#0  i915_set_draw_region (intel=0x975fdf8, color_regions=0xbfd552fc, depth_region=0x0, num_regions=1) at i915_vtbl.c:624
        ctx = 0x975fdf8
        rb = <optimized out>
        irb = 0x9e77098
        drb = <optimized out>
        idrb = 0x0
        value = 277349120
        state = 0x977e978
        draw_x = <optimized out>
        draw_y = <optimized out>
        draw_offset = <optimized out>
#1  0x008e2a40 in i915_update_draw_buffer (intel=0x975fdf8) at i915_vtbl.c:805
        i915 = 0x975fdf8
        ctx = 0x975fdf8
        fb = 0x9e76668
        colorRegion = 0x9e78028
        depthRegion = 0x0
        irbDepth = <optimized out>
        irbStencil = <optimized out>
#2  0x009072b1 in intel_draw_buffer (ctx=0x975fdf8) at ../../../../../src/mesa/drivers/dri/intel/intel_buffers.h:50
No locals.
#3  intel_render_texture (ctx=0x975fdf8, fb=0x9e76668, att=0x9e76848) at intel_fbo.c:666
        image = 0x9e77ca0
        irb = <optimized out>
        mt = <optimized out>
        layer = 0
#4  0x02c6bb78 in _mesa_set_texture_attachment (ctx=0x975fdf8, fb=0x9e76668, att=0x9e76848, texObj=0x9e779c0, texTarget=3553, level=0, zoffset=0) at main/fbobject.c:381
        __PRETTY_FUNCTION__ = "_mesa_set_texture_attachment"
#5  0x02c6bf18 in framebuffer_texture (zoffset=0, level=0, texture=65, textarget=3553, attachment=36064, target=36160, caller=0x2e2005d "2D", ctx=0x975fdf8) at main/fbobject.c:2040
        att = <optimized out>
        texObj = 0x9e779c0
        fb = 0x9e76668
#6  framebuffer_texture (ctx=0x975fdf8, caller=0x2e2005d "2D", target=36160, attachment=36064, textarget=3553, texture=65, level=0, zoffset=0) at main/fbobject.c:1930
No locals.
#7  0x02c6e912 in _mesa_FramebufferTexture2DEXT (target=36160, attachment=36064, textarget=3553, texture=65, level=0) at main/fbobject.c:2150
        ctx = 0x975fdf8
#8  0x09463299 in nux::IOpenGLFrameBufferObject::Activate (this=0x9e765c0, WithClippingStack=false) at ./IOpenGLFrameBufferObject.cpp:179
        target = 3553
        glID = <optimized out>
        level = <optimized out>
        i = 0
        NumBuffers = <optimized out>
#9  0x01231d26 in nux::WindowCompositor::FormatRenderTargets (this=0x9e76428, width=1280, height=800) at ./WindowCompositor.cpp:1988
        buffer_width = 1280
        buffer_height = 800
#10 0x0123add8 in nux::WindowThread::ThreadCtor (this=0x9b0a220, X11Display=0x0, X11Window=91, OpenGLContext=0x9751ec0) at ./WindowThread.cpp:1134
        w = 1280
        h = 800
#11 0x011e206a in nux::CreateFromForeignWindow (X11Window=91, OpenGLContext=0x9751ec0, user_init_func=0x172cfc0 <unity::UnityScreen::initUnity(nux::NThread*, void*)>, data=0x9adde40) at ./Nux.cpp:210
        w = 0x9b0a220
#12 0x01730f9f in unity::UnityScreen::UnityScreen (this=0x9adde40, screen=0x96da490) at /build/buildd/unity-5.8.0/plugins/unityshell/src/unityshell.cpp:228
        dlhand = 0x9751ec0
        name = {static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0xb01986 "\201\303n\306\004"}}
        pname = {static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0xb4dff4 "L\311\r"}}
        size = {mWidth = 119, mHeight = 124}
        timer = {start_time_ = 366121821}
        extensions = 0x9751ec0 ""
        failed = 88
        old_handler = 0x5902fc0
#13 0x0173f26e in getInstance (base=<optimized out>) at /usr/include/compiz/core/pluginclasshandler.h:225
        pc = 0x9adde40
#14 PluginClassHandler<unity::UnityScreen, CompScreen, 0>::get (base=0x96da490) at /usr/include/compiz/core/pluginclasshandler.h:269
No locals.
#15 0x0173f3fb in CompPlugin::VTableForScreenAndWindow<unity::UnityScreen, unity::UnityWindow>::initScreen (this=0x9a350c0, s=0x96da490) at /usr/include/compiz/core/plugin.h:235
        ps = <optimized out>
#16 0x009db04d in CompManager::initPlugin (p=0x9745bf0) at /build/buildd/compiz-0.9.7.2/src/plugin.cpp:292
No locals.
#17 0x009dbbf0 in CompPlugin::push (p=0x9745bf0) at /build/buildd/compiz-0.9.7.2/src/plugin.cpp:497
        name = 0x9a73de4 "unityshell"
#18 0x009a78a2 in compiz::private_screen::PluginManager::updatePlugins (this=0x96da510) at /build/buildd/compiz-0.9.7.2/src/screen.cpp:1040
        p = 0x9745bf0
        __PRETTY_FUNCTION__ = "void compiz::private_screen::PluginManager::updatePlugins()"
        pop = {<std::_List_base<CompPlugin*, std::allocator<CompPlugin*> >> = {_M_impl = {<std::allocator<std::_List_node<CompPlugin*> >> = {<__gnu_cxx::new_allocator<std::_List_node<CompPlugin*> >> = {<No data fields>}, <No data fields>}, _M_node = {_M_next = 0xbfd55e18, _M_prev = 0xbfd55e18}}}, <No data fields>}
        pListCount = 158180652
        lpName = {static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x9a0e504 "unityshell"}}
#19 0x009a9b67 in PrivateScreen::processEvents (this=0x96da510) at /build/buildd/compiz-0.9.7.2/src/screen.cpp:783
        events = {<std::_List_base<_XEvent, std::allocator<_XEvent> >> = {_M_impl = {<std::allocator<std::_List_node<_XEvent> >> = {<__gnu_cxx::new_allocator<std::_List_node<_XEvent> >> = {<No data fields>}, <No data fields>}, _M_node = {_M_next = 0xbfd55eec, _M_prev = 0xbfd55eec}}}, <No data fields>}
        dbg = 0x0
#20 0x009a9cb2 in CompScreenImpl::processEvents (this=0x96da490) at /build/buildd/compiz-0.9.7.2/src/screen.cpp:114
No locals.
#21 0x009e1552 in CompEventSource::callback (this=0x96f3e78) at /build/buildd/compiz-0.9.7.2/src/eventsource.cpp:63
No locals.
#22 0x009e18c2 in operator() (this=0x96f59f4) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787
No locals.
#23 operator() (this=0x96f59f0) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251
No locals.
#24 sigc::internal::slot_call0<sigc::bound_mem_functor0<bool, CompEventSource>, bool>::call_it (rep=0x96f59d8) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103
        typed_rep = 0x96f59d8
#25 0x009e1662 in operator() (this=<optimized out>) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:440
No locals.
#26 dispatch (slot=<optimized out>, this=<optimized out>) at /build/buildd/compiz-0.9.7.2/src/eventsource.cpp:86
No locals.
#27 CompEventSource::dispatch (this=0x96f3e78, slot=0x96ecaf8) at /build/buildd/compiz-0.9.7.2/src/eventsource.cpp:84
No locals.
#28 0x00fc5d71 in ?? ()
No symbol table info available.
Backtrace stopped: Not enough registers or memory available to unwind further