#0 0x00007f08bf6fe9cd in poll () at ../sysdeps/unix/syscall-template.S:84
#1 0x00007f08bcd81c62 in () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2 0x00007f08bcd83617 in () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3 0x00007f08bcd83721 in xcb_wait_for_reply () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#4 0x00007f08beeeca27 in _XReply (dpy=0x5617174a5940, rep=0x7ffdeec1b4d0, extra=0, discard=0) at ../../src/xcb_io.c:602
req = <optimized out>
response = <optimized out>
error = 0x0
c = <optimized out>
reply = <optimized out>
current = 0x561718e09620
__PRETTY_FUNCTION__ = "_XReply"
#5 0x00007f08b1b6a29a in () at /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
#6 0x00007f08b1b6a5d7 in () at /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
#7 0x00007f08abb28deb in () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#8 0x00007f08abb292f1 in () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#9 0x00007f08abb2a3f1 in () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#10 0x00007f08ab94a86a in () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#11 0x00007f08b1dd87eb in PrivateVertexBuffer::render(GLMatrix const*, GLMatrix const*, GLWindowPaintAttrib const*, unsigned short const*, unsigned int) () at /usr/lib/x86_64-linux-gnu/compiz/libopengl.so
#12 0x00007f08b1dc5d62 in GLWindow::glDrawTexture(GLTexture*, GLMatrix const&, GLWindowPaintAttrib const&, unsigned int) () at /usr/lib/x86_64-linux-gnu/compiz/libopengl.so
#13 0x00007f08b1dc64d4 in GLWindow::glDraw(GLMatrix const&, GLWindowPaintAttrib const&, CompRegion const&, unsigned int) () at /usr/lib/x86_64-linux-gnu/compiz/libopengl.so
#14 0x00007f08a21b4e13 in UnityMTGrabHandlesWindow::glDraw(GLMatrix const&, GLWindowPaintAttrib const&, CompRegion const&, unsigned int) () at /usr/lib/x86_64-linux-gnu/compiz/libunitymtgrabhandles.so
#15 0x00007f08b1dc64fe in GLWindow::glDraw(GLMatrix const&, GLWindowPaintAttrib const&, CompRegion const&, unsigned int) () at /usr/lib/x86_64-linux-gnu/compiz/libopengl.so
#16 0x00007f089e7b8d9e in unity::UnityWindow::glDraw(GLMatrix const&, GLWindowPaintAttrib const&, CompRegion const&, unsigned int) () at /usr/lib/x86_64-linux-gnu/compiz/libunityshell.so
#17 0x00007f08b1dc64fe in GLWindow::glDraw(GLMatrix const&, GLWindowPaintAttrib const&, CompRegion const&, unsigned int) () at /usr/lib/x86_64-linux-gnu/compiz/libopengl.so
#18 0x00007f08a84cdce4 in WallWindow::glPaint(GLWindowPaintAttrib const&, GLMatrix const&, CompRegion const&, unsigned int) () at /usr/lib/x86_64-linux-gnu/compiz/libwall.so
#19 0x00007f08b1dc6769 in GLWindow::glPaint(GLWindowPaintAttrib const&, GLMatrix const&, CompRegion const&, unsigned int) () at /usr/lib/x86_64-linux-gnu/compiz/libopengl.so
#20 0x00007f089efd4605 in FadeWindow::glPaint(GLWindowPaintAttrib const&, GLMatrix const&, CompRegion const&, unsigned int) () at /usr/lib/x86_64-linux-gnu/compiz/libfade.so
#21 0x00007f08b1dc6769 in GLWindow::glPaint(GLWindowPaintAttrib const&, GLMatrix const&, CompRegion const&, unsigned int) () at /usr/lib/x86_64-linux-gnu/compiz/libopengl.so
#22 0x00007f089e7b6879 in unity::UnityWindow::glPaint(GLWindowPaintAttrib const&, GLMatrix const&, CompRegion const&, unsigned int) () at /usr/lib/x86_64-linux-gnu/compiz/libunityshell.so
#23 0x00007f08b1dc6769 in GLWindow::glPaint(GLWindowPaintAttrib const&, GLMatrix const&, CompRegion const&, unsigned int) () at /usr/lib/x86_64-linux-gnu/compiz/libopengl.so
#24 0x00007f08b1dc6b53 in PrivateGLScreen::paintOutputRegion(GLMatrix const&, CompRegion const&, CompOutput*, unsigned int) () at /usr/lib/x86_64-linux-gnu/compiz/libopengl.so
#25 0x00007f08b1dc787d in GLScreen::glPaintOutput(GLScreenPaintAttrib const&, GLMatrix const&, CompRegion const&, CompOutput*, unsigned int) () at /usr/lib/x86_64-linux-gnu/compiz/libopengl.so
#26 0x00007f08a84c80f6 in WallScreen::glPaintOutput(GLScreenPaintAttrib const&, GLMatrix const&, CompRegion const&, CompOutput*, unsigned int) () at /usr/lib/x86_64-linux-gnu/compiz/libwall.so
#27 0x00007f08b1dc768d in GLScreen::glPaintOutput(GLScreenPaintAttrib const&, GLMatrix const&, CompRegion const&, CompOutput*, unsigned int) () at /usr/lib/x86_64-linux-gnu/compiz/libopengl.so
#28 0x00007f089e7b8a8a in unity::UnityScreen::glPaintOutput(GLScreenPaintAttrib const&, GLMatrix const&, CompRegion const&, CompOutput*, unsigned int) () at /usr/lib/x86_64-linux-gnu/compiz/libunityshell.so
#29 0x00007f08b1dc768d in GLScreen::glPaintOutput(GLScreenPaintAttrib const&, GLMatrix const&, CompRegion const&, CompOutput*, unsigned int) () at /usr/lib/x86_64-linux-gnu/compiz/libopengl.so
#30 0x00007f08b1dccc4d in PrivateGLScreen::paintOutputs(std::__cxx11::list<CompOutput*, std::allocator<CompOutput*> >&, unsigned int, CompRegion const&) () at /usr/lib/x86_64-linux-gnu/compiz/libopengl.so
#31 0x00007f08b2413ed7 in CompositeScreen::paint(std::__cxx11::list<CompOutput*, std::allocator<CompOutput*> >&, unsigned int) () at /usr/lib/x86_64-linux-gnu/compiz/libcomposite.so
#32 0x00007f08b2416f01 in CompositeScreen::handlePaintTimeout() () at /usr/lib/x86_64-linux-gnu/compiz/libcomposite.so
#33 0x00007f08c0006a2f in CompTimer::triggerCallback() () at /usr/lib/x86_64-linux-gnu/libcompiz_core.so.ABI-20151010
#34 0x00007f08c0006b1c in CompTimeoutSource::callback() () at /usr/lib/x86_64-linux-gnu/libcompiz_core.so.ABI-20151010
#35 0x00007f08c0005f4d in CompTimeoutSource::dispatch(sigc::slot_base*) () at /usr/lib/x86_64-linux-gnu/libcompiz_core.so.ABI-20151010
#36 0x00007f08be2486ef in Glib::Source::dispatch_vfunc(_GSource*, int (*)(void*), void*) () at /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
#37 0x00007f08bdf2d0da in g_main_context_dispatch (context=0x5617174a4390) at /build/glib2.0-4NbKb8/glib2.0-2.49.2/./glib/gmain.c:3200
dispatch = 0x7f08be2486a0 <Glib::Source::dispatch_vfunc(_GSource*, int (*)(void*), void*)>
prev_source = 0x0
was_in_call = 0
user_data = 0x56171751ea70
callback = 0x7f08be248670
cb_funcs = <optimized out>
cb_data = 0x56171750f8c0
need_destroy = <optimized out>
source = 0x56171751ea00
current = 0x561717488570
i = 0
#38 0x00007f08bdf2d0da in g_main_context_dispatch (context=context@entry=0x5617174a4390) at /build/glib2.0-4NbKb8/glib2.0-2.49.2/./glib/gmain.c:3846
#39 0x00007f08bdf2d480 in g_main_context_iterate (context=0x5617174a4390, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-4NbKb8/glib2.0-2.49.2/./glib/gmain.c:3919
max_priority = 0
timeout = 0
some_ready = 1
nfds = <optimized out>
allocated_nfds = 6
fds = 0x561718419920
#40 0x00007f08bdf2d7a2 in g_main_loop_run (loop=0x5617174a42d0) at /build/glib2.0-4NbKb8/glib2.0-2.49.2/./glib/gmain.c:4115
__func__ = "g_main_loop_run"
#41 0x00007f08bffbdc1f in compiz::private_screen::EventManager::startEventLoop(_XDisplay*) () at /usr/lib/x86_64-linux-gnu/libcompiz_core.so.ABI-20151010
#42 0x0000561715c287b1 in main ()