.
Thread 4 (Thread 0x7fb41de16700 (LWP 1775)):
#0  0x00007fb43844bb03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = 0
        result = <optimized out>
#1  0x00007fb436cbaff6 in g_main_context_poll (n_fds=5, fds=0x7fb410007fa0, timeout=-1, context=0x7fb41800ca20, priority=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3417
        poll_func = 0x7fb436cc7f00 <g_poll>
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7fb41800ca20, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3118
        timeout = -1
        some_ready = <optimized out>
        fds = 0x7fb410007fa0
        max_priority = 2147483647
        nfds = 5
        allocated_nfds = <optimized out>
#3  g_main_context_iterate (context=0x7fb41800ca20, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3060
        some_ready = 268468128
#4  0x00007fb436cbb45a in g_main_loop_run (loop=0x7fb41800c9d0) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3317
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#5  0x00007fb42ec7d2c6 in gdbus_shared_thread_func (user_data=<optimized out>) at /build/buildd/glib2.0-2.32.1/./gio/gdbusprivate.c:277
        data = 0x7fb41800c9f0
#6  0x00007fb436cdc9a5 in g_thread_proxy (data=0x7fb41800a400) at /build/buildd/glib2.0-2.32.1/./glib/gthread.c:801
        thread = 0x7fb41800a400
#7  0x00007fb43814fe9a in start_thread (arg=0x7fb41de16700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7fb41de16700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -6980258205533134418, 140411580541680, 140411572152768, 0, 3, 6938111780594983342, 6938169115189256622}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#8  0x00007fb4384574bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#9  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 3 (Thread 0x7fb41e617700 (LWP 1774)):
#0  0x00007fb43844bb03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = 0
        result = <optimized out>
#1  0x00007fb436cbaff6 in g_main_context_poll (n_fds=1, fds=0x7fb4180010e0, timeout=-1, context=0x1552690, priority=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3417
        poll_func = 0x7fb436cc7f00 <g_poll>
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x1552690, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3118
        timeout = -1
        some_ready = <optimized out>
        fds = 0x7fb4180010e0
        max_priority = 2147483647
        nfds = 1
        allocated_nfds = <optimized out>
#3  g_main_context_iterate (context=0x1552690, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3060
        some_ready = 402657504
#4  0x00007fb436cbb45a in g_main_loop_run (loop=0x7fb4180010c0) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3317
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#5  0x00007fb41e61c98b in dconf_context_thread (data=<optimized out>) at dconfcontext.c:11
        context = 0x1552690
        loop = <optimized out>
        __PRETTY_FUNCTION__ = "dconf_context_thread"
#6  0x00007fb436cdc9a5 in g_thread_proxy (data=0x11d6000) at /build/buildd/glib2.0-2.32.1/./glib/gthread.c:801
        thread = 0x11d6000
#7  0x00007fb43814fe9a in start_thread (arg=0x7fb41e617700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7fb41e617700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -6980258205533134418, 140736834163728, 140411580545472, 0, 3, 6938104085624201646, 6938169115189256622}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#8  0x00007fb4384574bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#9  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (Thread 0x7fb434c8c700 (LWP 1705)):
#0  0x00007fb43844bb03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = 0
        result = <optimized out>
#1  0x00007fb436cbaff6 in g_main_context_poll (n_fds=1, fds=0x7fb4300008e0, timeout=-1, context=0x11d5a00, priority=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3417
        poll_func = 0x7fb436cc7f00 <g_poll>
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x11d5a00, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3118
        timeout = -1
        some_ready = <optimized out>
        fds = 0x7fb4300008e0
        max_priority = 2147483647
        nfds = 1
        allocated_nfds = <optimized out>
#3  g_main_context_iterate (context=0x11d5a00, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3060
        some_ready = 805308640
#4  0x00007fb436cbb124 in g_main_context_iteration (context=0x11d5a00, may_block=1) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3184
        retval = <optimized out>
#5  0x00007fb436cbb171 in glib_worker_main (data=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:4856
No locals.
#6  0x00007fb436cdc9a5 in g_thread_proxy (data=0x11d5c00) at /build/buildd/glib2.0-2.32.1/./glib/gthread.c:801
        thread = 0x11d5c00
#7  0x00007fb43814fe9a in start_thread (arg=0x7fb434c8c700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7fb434c8c700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -6980258205533134418, 140736834164112, 140411956414912, 0, 3, 6938162138012787118, 6938169115189256622}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#8  0x00007fb4384574bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#9  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (Thread 0x7fb4390e7780 (LWP 1704)):
#0  0x00007fb43839b445 in __GI_raise (sig=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
        resultvar = 0
        pid = <optimized out>
        selftid = 1704
#1  0x00007fb43839ebab in __GI_abort () at abort.c:91
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x7fb426e8f47a, sa_sigaction = 0x7fb426e8f47a}, sa_mask = {__val = {140412015473021, 21977112, 140412023695376, 140736834164464, 140412014373090, 140411723641978, 206158430232, 140736834164480, 140736834164256, 140411078143278, 206158430256, 55221600, 140412017817376, 140412015478168, 0, 140736834169607}}, sa_flags = 944624003, sa_restorer = 0x7fb426e8f2c0}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007fb43839410e in __assert_fail_base (fmt=<optimized out>, assertion=0x7fb426e8f47a " px", file=0x7fb426e8f2c0 "/usr/include/boost/smart_ptr/shared_ptr.hpp", line=<optimized out>, function=<optimized out>) at assert.c:94
        str = 0x34a9d60 "\220\236J\003"
        total = 4096
#3  0x00007fb4383941b2 in __GI___assert_fail (assertion=0x7fb426e8f47a " px", file=0x7fb426e8f2c0 "/usr/include/boost/smart_ptr/shared_ptr.hpp", line=418, function=0x7fb426e91fc0 "N5boost12noncopyable_11noncopyableE") at assert.c:103
No locals.
#4  0x00007fb426e8af95 in __uninit_copy<std::move_iterator<WrapableHandler<ScreenInterface, 18u>::Interface*>, WrapableHandler<ScreenInterface, 18u>::Interface*> (__result=<optimized out>, __last=<optimized out>, __first=<optimized out>) at /usr/include/c++/4.6/bits/stl_uninitialized.h:76
        __cur = <optimized out>
#5  uninitialized_copy<std::move_iterator<WrapableHandler<ScreenInterface, 18u>::Interface*>, WrapableHandler<ScreenInterface, 18u>::Interface*> (__result=<optimized out>, __last=<optimized out>, __first=<optimized out>) at /usr/include/c++/4.6/bits/stl_uninitialized.h:119
No locals.
#6  __uninitialized_copy_a<std::move_iterator<WrapableHandler<ScreenInterface, 18u>::Interface*>, WrapableHandler<ScreenInterface, 18u>::Interface*, WrapableHandler<ScreenInterface, 18u>::Interface> (__last=<optimized out>, __result=<optimized out>, __first=<optimized out>) at /usr/include/c++/4.6/bits/stl_uninitialized.h:259
No locals.
#7  __uninitialized_move_a<WrapableHandler<ScreenInterface, 18u>::Interface*, WrapableHandler<ScreenInterface, 18u>::Interface*, std::allocator<WrapableHandler<ScreenInterface, 18u>::Interface> > (__result=0x15006a0, __last=0x6a8, __first=0x6a8, __alloc=<optimized out>) at /usr/include/c++/4.6/bits/stl_uninitialized.h:269
No locals.
#8  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&&) (this=0x11cd920, __position=...) at /usr/include/c++/4.6/bits/vector.tcc:343
        __len = <optimized out>
        __elems_before = <optimized out>
        __new_start = 0x15006a0
        __new_finish = 0x0
#9  0x00007fb426e84008 in shared_ptr<unity::MT::GrabHandle> (this=0x7fffd901d808, r=<optimized out>) at /usr/include/boost/smart_ptr/shared_ptr.hpp:238
No locals.
#10 pair<unsigned long&, void> (__y=..., this=0x7fffd901d800, __x=<optimized out>) at /usr/include/c++/4.6/bits/stl_pair.h:121
No locals.
#11 UnityMTGrabHandlesScreen::addHandleWindow (this=0x6a8, h=..., w=6) at /build/buildd/unity-5.10.0/plugins/unity-mt-grab-handles/src/unity-mt-grab-handles.cpp:665
No locals.
#12 0x00007fb438458470 in __libc_recv (fd=<optimized out>, buf=<optimized out>, n=<optimized out>, flags=<optimized out>) at ../sysdeps/unix/sysv/linux/x86_64/recv.c:36
        oldtype = 18709200
        result = <optimized out>
#13 0x00007fb43635974b in _xcb_in_read (c=0x11d7a90) at ../../src/xcb_in.c:665
        n = -1
#14 0x0000000001507060 in ?? ()
No symbol table info available.
#15 0x0000000004065110 in ?? ()
No symbol table info available.
#16 0x00007fb425e486dd in WorkaroundsScreen::handleEvent (this=0x7fb438ee9e90, event=0x15006a0) at /build/buildd/compiz-plugins-main-0.9.7.0~bzr19/workarounds/src/workarounds.cpp:926
        w = <optimized out>
#17 0x00007fb438c9e8f3 in CompScreen::handleEvent (this=0x11cd920, event=<optimized out>) at /build/buildd/compiz-0.9.7.6/src/event.cpp:1039
        curr = 4
#18 0x00007fb425c1d587 in PrivateScaleScreen::handleEvent (this=0x15006a0, event=0x4065110) at /build/buildd/compiz-0.9.7.6/plugins/scale/src/scale.cpp:1664
        w = 0x0
#19 0x00007fb438c9e8f3 in CompScreen::handleEvent (this=0x11cd920, event=<optimized out>) at /build/buildd/compiz-0.9.7.6/src/event.cpp:1039
        curr = 1
#20 0x00007fb42520dc3b in typed_slot_rep (this=0x4065110, cl=<optimized out>) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:42
No locals.
#21 sigc::internal::typed_slot_rep<sigc::bound_mem_functor3<void, unity::QuicklistView, unity::QuicklistMenuItem*, int, int> >::dup (data=<optimized out>) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:77
        a_rep = 0x16492a0
#22 0x0000000001fa8b20 in ?? ()
No symbol table info available.
#23 0x00000000000000d0 in ?? ()
No symbol table info available.
#24 0x00000000011cd920 in ?? ()
No symbol table info available.
#25 0x0000000000000000 in ?? ()
No symbol table info available.