.
Thread 4 (Thread 0x7fb41de16700 (LWP 1775)):
#0  0x00007fb43844bb03 in poll () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007fb436cbaff6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007fb436cbb45a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fb42ec7d2c6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007fb436cdc9a5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007fb43814fe9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#6  0x00007fb4384574bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#7  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 3 (Thread 0x7fb41e617700 (LWP 1774)):
#0  0x00007fb43844bb03 in poll () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007fb436cbaff6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007fb436cbb45a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fb41e61c98b in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
No symbol table info available.
#4  0x00007fb436cdc9a5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007fb43814fe9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#6  0x00007fb4384574bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#7  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (Thread 0x7fb434c8c700 (LWP 1705)):
#0  0x00007fb43844bb03 in poll () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007fb436cbaff6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007fb436cbb124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fb436cbb171 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007fb436cdc9a5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007fb43814fe9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#6  0x00007fb4384574bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#7  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (Thread 0x7fb4390e7780 (LWP 1704)):
#0  0x00007fb43839b445 in raise () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007fb43839ebab in abort () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#2  0x00007fb43839410e in ?? () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#3  0x00007fb4383941b2 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#4  0x00007fb426e8af95 in void std::vector<WrapableHandler<ScreenInterface, 18u>::Interface, std::allocator<WrapableHandler<ScreenInterface, 18u>::Interface> >::_M_insert_aux<WrapableHandler<ScreenInterface, 18u>::Interface>(__gnu_cxx::__normal_iterator<WrapableHandler<ScreenInterface, 18u>::Interface*, std::vector<WrapableHandler<ScreenInterface, 18u>::Interface, std::allocator<WrapableHandler<ScreenInterface, 18u>::Interface> > >, WrapableHandler<ScreenInterface, 18u>::Interface&&) () from /usr/lib/compiz/libunitymtgrabhandles.so
No symbol table info available.
#5  0x00007fb426e84008 in UnityMTGrabHandlesScreen::addHandleWindow(boost::shared_ptr<unity::MT::GrabHandle> const&, unsigned long) () from /usr/lib/compiz/libunitymtgrabhandles.so
No symbol table info available.
#6  0x00007fb438458470 in recv () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#7  0x00007fb43635974b in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
No symbol table info available.
#8  0x0000000001507060 in ?? ()
No symbol table info available.
#9  0x0000000004065110 in ?? ()
No symbol table info available.
#10 0x00007fb425e486dd in WorkaroundsScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libworkarounds.so
No symbol table info available.
#11 0x00007fb438c9e8f3 in CompScreen::handleEvent(_XEvent*) () from /usr/lib/libcompiz_core.so.ABI-20120305
No symbol table info available.
#12 0x00007fb425c1d587 in PrivateScaleScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libscale.so
No symbol table info available.
#13 0x00007fb438c9e8f3 in CompScreen::handleEvent(_XEvent*) () from /usr/lib/libcompiz_core.so.ABI-20120305
No symbol table info available.
#14 0x00007fb42520dc3b in unity::QuicklistView::QuicklistView() () from /usr/lib/compiz/libunityshell.so
No symbol table info available.
#15 0x00007fffd901dc60 in ?? ()
No symbol table info available.
#16 0x00007fb4371b2ee0 in ?? () from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
No symbol table info available.
#17 0x000000000123c0c0 in ?? ()
No symbol table info available.
#18 0x000000000123c050 in ?? ()
No symbol table info available.
#19 0x0000000000000000 in ?? ()
No symbol table info available.