. Thread 3 (Thread 0xb5cd4b70 (LWP 6507)): #0 0x008aa416 in __kernel_vsyscall () No symbol table info available. #1 0x004ba40e in __GI___poll (fds=0xa49bb68, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87 resultvar = oldtype = -516 result = #2 0x00b9134b in g_poll (fds=0xa49bb68, nfds=3, timeout=-1) at /build/buildd/glib2.0-2.30.0/./glib/gpoll.c:132 No locals. #3 0x00b82896 in g_main_context_poll (n_fds=3, fds=0xa49bb68, timeout=, context=0xa49b488, priority=) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3402 poll_func = 0xb91320 #4 g_main_context_iterate (context=0xa49b488, block=12129056, dispatch=1, self=) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3084 max_priority = 2147483647 timeout = -1 some_ready = nfds = 3 allocated_nfds = fds = 0xa49bb68 #5 0x00b82f9b in g_main_loop_run (loop=0xa49b460) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3297 __PRETTY_FUNCTION__ = "g_main_loop_run" #6 0x03b82cea in gdbus_shared_thread_func (user_data=0xa49b470) at /build/buildd/glib2.0-2.30.0/./gio/gdbusprivate.c:276 data = 0xa49b470 #7 0x00ba95f4 in g_thread_create_proxy (data=0xa49b518) at /build/buildd/glib2.0-2.30.0/./glib/gthread.c:1962 thread = 0xa49b518 __PRETTY_FUNCTION__ = "g_thread_create_proxy" #8 0x0097fd31 in start_thread (arg=0xb5cd4b70) at pthread_create.c:304 __res = pd = 0xb5cd4b70 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {10031092, 0, 4001536, -1244839208, -1636879479, 722915555}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = robust = pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #9 0x004c90ce in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130 No locals. Backtrace stopped: Not enough registers or memory available to unwind further . Thread 2 (Thread 0xb64d5b70 (LWP 6506)): #0 0x008aa416 in __kernel_vsyscall () No symbol table info available. #1 0x004ba40e in __GI___poll (fds=0xa48a1d0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87 resultvar = oldtype = -516 result = #2 0x00b9134b in g_poll (fds=0xa48a1d0, nfds=1, timeout=-1) at /build/buildd/glib2.0-2.30.0/./glib/gpoll.c:132 No locals. #3 0x00b82896 in g_main_context_poll (n_fds=1, fds=0xa48a1d0, timeout=, context=0xa4897e8, priority=) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3402 poll_func = 0xb91320 #4 g_main_context_iterate (context=0xa4897e8, block=12129056, dispatch=1, self=) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3084 max_priority = 2147483647 timeout = -1 some_ready = nfds = 1 allocated_nfds = fds = 0xa48a1d0 #5 0x00b82f9b in g_main_loop_run (loop=0xa48adc8) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3297 __PRETTY_FUNCTION__ = "g_main_loop_run" #6 0x02517194 in dconf_context_thread (data=0xa4897e8) at dconfcontext.c:11 context = 0xa4897e8 loop = __PRETTY_FUNCTION__ = "dconf_context_thread" #7 0x00ba95f4 in g_thread_create_proxy (data=0xa489878) at /build/buildd/glib2.0-2.30.0/./glib/gthread.c:1962 thread = 0xa489878 __PRETTY_FUNCTION__ = "g_thread_create_proxy" #8 0x0097fd31 in start_thread (arg=0xb64d5b70) at pthread_create.c:304 __res = pd = 0xb64d5b70 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {10031092, 0, 4001536, -1236446504, -1638976626, 722915555}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = robust = pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #9 0x004c90ce in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130 No locals. Backtrace stopped: Not enough registers or memory available to unwind further . Thread 1 (Thread 0xb787d880 (LWP 6500)): #0 0x016b4e94 in nux::WindowThread::IsInsideLayoutCycle (this=0x0) at ./WindowThread.cpp:785 No locals. #1 0x015ea5ad in IsComputingLayout (this=) at ./WindowThread.h:172 No locals. #2 nux::Area::ReconfigureParentLayout (this=0xa60a948, child=0x0) at ./Area.cpp:422 No locals. #3 0x015ea8ef in nux::Area::ApplyMinWidth (this=0xa60a948) at ./Area.cpp:175 No locals. #4 0x0161c1f6 in nux::HLayout::HLayoutManagement (this=0xa6dfc08, width=1440, height=24) at ./HLayout.cpp:556 max_stretchfactor = 1 total_distributed_size = available_width = 1440 it = {_M_node = 0xa71a390} cumul = LastElementThatCanBeResized = ref_width = need_recompute = false #5 0x0161cf2d in nux::HLayout::ComputeLayout2 (this=0xa6dfc08) at ./HLayout.cpp:260 num_element = current_y = offset_space = 162680820 element_height = width = 1440 height = 24 current_x = space_after_element = 174833356 FullSizeUnadjusted = { >> = {_M_impl = {> = {<__gnu_cxx::new_allocator> = {}, }, _M_start = 0x0, _M_finish = 0xbc6110, _M_end_of_storage = 0x0}}, } it = original_height = 24 unadjusted_layout = size_compliance = #6 0x01626a8f in nux::View::ComputeChildLayout (this=0xa6bbecc) at ./View.cpp:128 ret = size_compliance = PreWidth = 1440 PreHeight = 24 PostWidth = PostHeight = #7 0x09a680ba in unity::PreviewMusicAlbum::PreviewMusicAlbum (this=0xa60a818, preview=..., __Nux_FileName__=0xa3ad058 "\001", __Nux_LineNumber__=11886417) at /build/buildd/unity-4.24.0/plugins/unityshell/src/PreviewMusic.cpp:42 No locals. #8 0x099b8dc9 in typed_slot_rep (this=0x9b24ff4, cl=) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:42 No locals. #9 sigc::internal::typed_slot_rep >::dup (data=0xac75800) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:77 a_rep = 0xac75800 #10 0x00000000 in ?? () No symbol table info available.