.
Thread 4 (Thread 0x7fdc0698a700 (LWP 2283)):
#0  0x00007fdc0eda0ddd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fdc0f2e0004 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007fdc0f2e010c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fdc0f2e0149 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007fdc0f304f35 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007fdc0f081182 in start_thread (arg=0x7fdc0698a700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7fdc0698a700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140582980200192, 6268680979858950091, 0, 0, 140582980200896, 140582980200192, -6249068759986894901, -6249085111394400309}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007fdc0edae12d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 3 (Thread 0x7fdc07cbb700 (LWP 2282)):
#0  0x00007fdc0eda0ddd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fdc0f2e0004 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007fdc0f2e032a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fdc0fd30226 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007fdc0f304f35 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007fdc0f081182 in start_thread (arg=0x7fdc07cbb700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7fdc07cbb700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140583000323840, 6268680979858950091, 0, 0, 140583000324544, 140583000323840, -6249065865715808309, -6249085111394400309}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007fdc0edae12d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 2 (Thread 0x7fdc084bc700 (LWP 2281)):
#0  0x00007fdc0eda0ddd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fdc0f2e0004 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007fdc0f2e010c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fdc084c418d in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
No symbol table info available.
#4  0x00007fdc0f304f35 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007fdc0f081182 in start_thread (arg=0x7fdc084bc700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7fdc084bc700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140583008716544, 6268680979858950091, 0, 0, 140583008717248, 140583008716544, -6249091155020118069, -6249085111394400309}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007fdc0edae12d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 1 (Thread 0x7fdc114cd9c0 (LWP 2278)):
#0  0x00007fdbee87f0a0 in xcb_glx_query_server_string_string_length () from /usr/lib/x86_64-linux-gnu/libxcb-glx.so.0
No symbol table info available.
#1  0x00007fdbeecf08c5 in ?? () from /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
No symbol table info available.
#2  0x00007fdbeecd1dee in ?? () from /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
No symbol table info available.
#3  0x00007fdbeecce0a1 in glXQueryVersion () from /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
No symbol table info available.
#4  0x00007fdbf30565a7 in ?? () from /usr/lib/x86_64-linux-gnu/libcogl.so.15
No symbol table info available.
#5  0x00007fdbf301a852 in cogl_renderer_connect () from /usr/lib/x86_64-linux-gnu/libcogl.so.15
No symbol table info available.
#6  0x00007fdbf32f2d1f in ?? () from /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
No symbol table info available.
#7  0x00007fdbf330a673 in ?? () from /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
No symbol table info available.
#8  0x00007fdbf331bb5a in ?? () from /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
No symbol table info available.
#9  0x00007fdbf331bd7b in ?? () from /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
No symbol table info available.
#10 0x00007fdc0f2eae57 in g_option_context_parse () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#11 0x00007fdbf331c9c0 in clutter_init () from /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
No symbol table info available.
#12 0x00007fdbf4b0e7bc in cheese_gtk_init () from /usr/lib/x86_64-linux-gnu/libcheese-gtk.so.23
No symbol table info available.
#13 0x00007fdbf58a16d3 in g_io_module_load () from /usr/lib/x86_64-linux-gnu/unity-control-center-1/panels/libuser-accounts.so
No symbol table info available.
#14 0x00007fdc0fcb6146 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#15 0x00007fdc0f5ce0a1 in g_type_module_use () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#16 0x00007fdc0fcb6525 in g_io_modules_load_all_in_directory_with_scope () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#17 0x000000000040a17a in ?? ()
No symbol table info available.
#18 0x00007fdc0f5cae3b in g_type_create_instance () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#19 0x00007fdc0f5af355 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#20 0x00007fdc0f5b110d in g_object_newv () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#21 0x00007fdc0f5b18bc in g_object_new () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#22 0x0000000000407482 in main ()
No symbol table info available.