.
Thread 3 (Thread 0x7fe50339e700 (LWP 2871)):
#0  0x00007fe5161b2cdd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fe5176b9099 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe5176b9432 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe5173a0836 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fe5176e0595 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fe51648274a in start_thread (arg=0x7fe50339e700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7fe50339e700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140621578364672, 1505852702875112374, 140735742184190, 140735742184191, 140621578365376, 140621578364672, -1499738817858448458, -1499714488894172234}, 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  0x00007fe5161becaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
.
Thread 2 (Thread 0x7fe503b9f700 (LWP 2869)):
#0  0x00007fe5161b2cdd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fe5176b9099 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe5176b91ac in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe5176b91f1 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe5176e0595 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fe51648274a in start_thread (arg=0x7fe503b9f700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7fe503b9f700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140621586757376, 1505852702875112374, 140735742183806, 140735742183807, 140621586758080, 140621586757376, -1499739916833205322, -1499714488894172234}, 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  0x00007fe5161becaf in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
.
Thread 1 (Thread 0x7fe517ff13c0 (LWP 2868)):
#0  0x00007fe5160f1bf5 in __GI_____strtoul_l_internal (nptr=0x0, endptr=0x7fff97eb9aa8, base=10, group=<optimized out>, loc=0x7fe516474820 <_nl_C_locobj>) at ../stdlib/strtol_l.c:293
        negative = <optimized out>
        cutoff = <optimized out>
        cutlim = <optimized out>
        i = <optimized out>
        s = 0x0
        c = <optimized out>
        save = <optimized out>
        end = <optimized out>
        overflow = <optimized out>
        cnt = <optimized out>
        current = <optimized out>
        thousands = 0x0
        thousands_len = 0
        grouping = 0x0
#1  0x00007fe514bffbbd in  () at /usr/lib/x86_64-linux-gnu/libcogl.so.20
#2  0x00007fe514bffc7b in  () at /usr/lib/x86_64-linux-gnu/libcogl.so.20
#3  0x00007fe514bffef3 in  () at /usr/lib/x86_64-linux-gnu/libcogl.so.20
#4  0x00007fe514bfe46a in  () at /usr/lib/x86_64-linux-gnu/libcogl.so.20
#5  0x00007fe514c39017 in  () at /usr/lib/x86_64-linux-gnu/libcogl.so.20
#6  0x00007fe514c00602 in cogl_context_new () at /usr/lib/x86_64-linux-gnu/libcogl.so.20
#7  0x00007fe51511ca7e in  () at /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
#8  0x00007fe515135713 in  () at /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
#9  0x00007fe515146a29 in  () at /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
#10 0x00007fe515146c30 in  () at /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
#11 0x00007fe5176c4f6f in g_option_context_parse () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007fe5151479d8 in clutter_init () at /usr/lib/x86_64-linux-gnu/libclutter-1.0.so.0
#13 0x00007fe517c040e0 in  () at /usr/lib/x86_64-linux-gnu/libtotem.so.0
#14 0x00007fe5179b67c5 in g_type_create_instance () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#15 0x00007fe517997358 in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#16 0x00007fe5179994e0 in g_object_new_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#17 0x00007fe517999859 in g_object_new () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#18 0x00000099f717edf0 in main ()