.
Thread 4 (Thread 0x7f4e2bb89700 (LWP 1667)):
#0  0x00007f4e468c23cd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f4e29ab3f31 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
No symbol table info available.
#2  0x00007f4e29aa58bc in pa_mainloop_poll () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
No symbol table info available.
#3  0x00007f4e29aa5f4e in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
No symbol table info available.
#4  0x00007f4e29aa6000 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
No symbol table info available.
#5  0x00007f4e29ab3ee3 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
No symbol table info available.
#6  0x00007f4e2965a4a8 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-3.0.so
No symbol table info available.
#7  0x00007f4e46ba4f8e in start_thread (arg=0x7f4e2bb89700) at pthread_create.c:311
        __res = <optimized out>
        pd = 0x7f4e2bb89700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139973717694208, -8503149858381052983, 0, 139974219481184, 139974170830656, 4096, 8602694632673428425, 8602494545217110985}, 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  0x00007f4e468cee1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.
.
Thread 3 (Thread 0x7f4e3ebb6700 (LWP 1410)):
#0  0x00007f4e468c23cd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f4e47b69394 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f4e47b6949c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f4e3ebbda1d in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
No symbol table info available.
#4  0x00007f4e47b8dc25 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f4e46ba4f8e in start_thread (arg=0x7f4e3ebb6700) at pthread_create.c:311
        __res = <optimized out>
        pd = 0x7f4e3ebb6700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139974036645632, -8503149858381052983, 0, 139974219481184, 140734054929696, 4096, 8602652882906956745, 8602494545217110985}, 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"
#6  0x00007f4e468cee1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.
.
Thread 2 (Thread 0x7f4e3f7c8700 (LWP 1398)):
#0  0x00007f4e468c23cd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f4e47b69394 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f4e47b697fa in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f4e487bd5f6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007f4e47b8dc25 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f4e46ba4f8e in start_thread (arg=0x7f4e3f7c8700) at pthread_create.c:311
        __res = <optimized out>
        pd = 0x7f4e3f7c8700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139974049302272, -8503149858381052983, 0, 139974219481184, 140734054929216, 4096, 8602650141644080073, 8602494545217110985}, 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"
#6  0x00007f4e468cee1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.
.
Thread 1 (Thread 0x7f4e499d7980 (LWP 1387)):
#0  0x00007f4e47916646 in lightdm_layout_get_name () from /usr/lib/liblightdm-gobject-1.so.0
No symbol table info available.
#1  0x000000000042c394 in ?? ()
No symbol table info available.
#2  0x0000000000437cd7 in ?? ()
No symbol table info available.
#3  0x00007f4e47e34337 in g_cclosure_marshal_VOID__OBJECTv () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#4  0x00007f4e47e31497 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#5  0x00007f4e47e4b2bc in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#6  0x00007f4e47e4bb92 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#7  0x00007f4e47e31497 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#8  0x00007f4e47e4b2bc in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#9  0x00007f4e47e4bb92 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#10 0x00007f4e4398fc18 in ffi_call_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.6
No symbol table info available.
#11 0x00007f4e4398f580 in ffi_call () from /usr/lib/x86_64-linux-gnu/libffi.so.6
No symbol table info available.
#12 0x00007f4e47e31aa8 in g_cclosure_marshal_generic () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#13 0x00007f4e47e31268 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#14 0x00007f4e47e436cd in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#15 0x00007f4e47e4b8ba in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#16 0x00007f4e47e4bb92 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#17 0x00007f4e487b97bc in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#18 0x00007f4e487a95e5 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#19 0x00007f4e47b690a6 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#20 0x00007f4e47b693f8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#21 0x00007f4e47b697fa in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#22 0x00007f4e49097505 in gtk_main () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
No symbol table info available.
#23 0x000000000042d834 in ?? ()
No symbol table info available.
#24 0x00007f4e467f6ea5 in __libc_start_main (main=0x40d260, argc=1, ubp_av=0x7fff335a1c08, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff335a1bf8) at libc-start.c:260
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -8503149858381052983, 4248192, 140734054931456, 0, 0, 8503034644682818505, 8602494037371569097}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x439650, 0x7fff335a1c08}, data = {prev = 0x0, cleanup = 0x0, canceltype = 4429392}}}
        not_first_call = <optimized out>
#25 0x000000000040d2a9 in ?? ()
No symbol table info available.